diff options
Diffstat (limited to 'drivers/input')
53 files changed, 2670 insertions, 698 deletions
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 5d11fea3c8ec..f3135ae22df4 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -950,6 +950,12 @@ static const struct input_device_id joydev_ids[] = { .flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT, .evbit = { BIT_MASK(EV_ABS) }, + .absbit = { BIT_MASK(ABS_Z) }, + }, + { + .flags = INPUT_DEVICE_ID_MATCH_EVBIT | + INPUT_DEVICE_ID_MATCH_ABSBIT, + .evbit = { BIT_MASK(EV_ABS) }, .absbit = { BIT_MASK(ABS_WHEEL) }, }, { diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 509608c95994..cbd75cf44739 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -12,6 +12,21 @@ menuconfig INPUT_KEYBOARD if INPUT_KEYBOARD +config KEYBOARD_ADC + tristate "ADC Ladder Buttons" + depends on IIO + select INPUT_POLLDEV + help + This driver implements support for buttons connected + to an ADC using a resistor ladder. + + Say Y here if your device has such buttons connected to an ADC. Your + board-specific setup logic must also provide a configuration data + for mapping voltages to buttons. + + To compile this driver as a module, choose M here: the + module will be called adc_keys. + config KEYBOARD_ADP5520 tristate "Keypad Support for ADP5520 PMIC" depends on PMIC_ADP5520 diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 1d416ddf84e4..d9f4cfcf3410 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -4,6 +4,7 @@ # Each configuration option enables a list of files. +obj-$(CONFIG_KEYBOARD_ADC) += adc-keys.o obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o diff --git a/drivers/input/keyboard/adc-keys.c b/drivers/input/keyboard/adc-keys.c new file mode 100644 index 000000000000..f8cf2ccacefd --- /dev/null +++ b/drivers/input/keyboard/adc-keys.c @@ -0,0 +1,210 @@ +/* + * Input driver for resistor ladder connected on ADC + * + * Copyright (c) 2016 Alexandre Belloni + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include <linux/err.h> +#include <linux/iio/consumer.h> +#include <linux/iio/types.h> +#include <linux/input.h> +#include <linux/input-polldev.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/property.h> +#include <linux/slab.h> + +struct adc_keys_button { + u32 voltage; + u32 keycode; +}; + +struct adc_keys_state { + struct iio_channel *channel; + u32 num_keys; + u32 last_key; + u32 keyup_voltage; + const struct adc_keys_button *map; +}; + +static void adc_keys_poll(struct input_polled_dev *dev) +{ + struct adc_keys_state *st = dev->private; + int i, value, ret; + u32 diff, closest = 0xffffffff; + int keycode = 0; + + ret = iio_read_channel_processed(st->channel, &value); + if (unlikely(ret < 0)) { + /* Forcibly release key if any was pressed */ + value = st->keyup_voltage; + } else { + for (i = 0; i < st->num_keys; i++) { + diff = abs(st->map[i].voltage - value); + if (diff < closest) { + closest = diff; + keycode = st->map[i].keycode; + } + } + } + + if (abs(st->keyup_voltage - value) < closest) + keycode = 0; + + if (st->last_key && st->last_key != keycode) + input_report_key(dev->input, st->last_key, 0); + + if (keycode) + input_report_key(dev->input, keycode, 1); + + input_sync(dev->input); + st->last_key = keycode; +} + +static int adc_keys_load_keymap(struct device *dev, struct adc_keys_state *st) +{ + struct adc_keys_button *map; + struct fwnode_handle *child; + int i; + + st->num_keys = device_get_child_node_count(dev); + if (st->num_keys == 0) { + dev_err(dev, "keymap is missing\n"); + return -EINVAL; + } + + map = devm_kmalloc_array(dev, st->num_keys, sizeof(*map), GFP_KERNEL); + if (!map) + return -ENOMEM; + + i = 0; + device_for_each_child_node(dev, child) { + if (fwnode_property_read_u32(child, "press-threshold-microvolt", + &map[i].voltage)) { + dev_err(dev, "Key with invalid or missing voltage\n"); + fwnode_handle_put(child); + return -EINVAL; + } + map[i].voltage /= 1000; + + if (fwnode_property_read_u32(child, "linux,code", + &map[i].keycode)) { + dev_err(dev, "Key with invalid or missing linux,code\n"); + fwnode_handle_put(child); + return -EINVAL; + } + + i++; + } + + st->map = map; + return 0; +} + +static int adc_keys_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct adc_keys_state *st; + struct input_polled_dev *poll_dev; + struct input_dev *input; + enum iio_chan_type type; + int i, value; + int error; + + st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL); + if (!st) + return -ENOMEM; + + st->channel = devm_iio_channel_get(dev, "buttons"); + if (IS_ERR(st->channel)) + return PTR_ERR(st->channel); + + if (!st->channel->indio_dev) + return -ENXIO; + + error = iio_get_channel_type(st->channel, &type); + if (error < 0) + return error; + + if (type != IIO_VOLTAGE) { + dev_err(dev, "Incompatible channel type %d\n", type); + return -EINVAL; + } + + if (device_property_read_u32(dev, "keyup-threshold-microvolt", + &st->keyup_voltage)) { + dev_err(dev, "Invalid or missing keyup voltage\n"); + return -EINVAL; + } + st->keyup_voltage /= 1000; + + error = adc_keys_load_keymap(dev, st); + if (error) + return error; + + platform_set_drvdata(pdev, st); + + poll_dev = devm_input_allocate_polled_device(dev); + if (!poll_dev) { + dev_err(dev, "failed to allocate input device\n"); + return -ENOMEM; + } + + if (!device_property_read_u32(dev, "poll-interval", &value)) + poll_dev->poll_interval = value; + + poll_dev->poll = adc_keys_poll; + poll_dev->private = st; + + input = poll_dev->input; + + input->name = pdev->name; + input->phys = "adc-keys/input0"; + + input->id.bustype = BUS_HOST; + input->id.vendor = 0x0001; + input->id.product = 0x0001; + input->id.version = 0x0100; + + __set_bit(EV_KEY, input->evbit); + for (i = 0; i < st->num_keys; i++) + __set_bit(st->map[i].keycode, input->keybit); + + if (device_property_read_bool(dev, "autorepeat")) + __set_bit(EV_REP, input->evbit); + + error = input_register_polled_device(poll_dev); + if (error) { + dev_err(dev, "Unable to register input device: %d\n", error); + return error; + } + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id adc_keys_of_match[] = { + { .compatible = "adc-keys", }, + { } +}; +MODULE_DEVICE_TABLE(of, adc_keys_of_match); +#endif + +static struct platform_driver __refdata adc_keys_driver = { + .driver = { + .name = "adc_keys", + .of_match_table = of_match_ptr(adc_keys_of_match), + }, + .probe = adc_keys_probe, +}; +module_platform_driver(adc_keys_driver); + +MODULE_AUTHOR("Alexandre Belloni <alexandre.belloni@free-electrons.com>"); +MODULE_DESCRIPTION("Input driver for resistor ladder connected on ADC"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c index 4b0878f35471..25943e9bc8bf 100644 --- a/drivers/input/keyboard/cros_ec_keyb.c +++ b/drivers/input/keyboard/cros_ec_keyb.c @@ -27,6 +27,7 @@ #include <linux/input.h> #include <linux/interrupt.h> #include <linux/kernel.h> +#include <linux/notifier.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/input/matrix_keypad.h> @@ -44,6 +45,7 @@ * @dev: Device pointer * @idev: Input device * @ec: Top level ChromeOS device to use to talk to EC + * @notifier: interrupt event notifier for transport devices */ struct cros_ec_keyb { unsigned int rows; @@ -57,6 +59,7 @@ struct cros_ec_keyb { struct device *dev; struct input_dev *idev; struct cros_ec_device *ec; + struct notifier_block notifier; }; @@ -146,67 +149,44 @@ static void cros_ec_keyb_process(struct cros_ec_keyb *ckdev, input_sync(ckdev->idev); } -static int cros_ec_keyb_get_state(struct cros_ec_keyb *ckdev, uint8_t *kb_state) -{ - int ret = 0; - struct cros_ec_command *msg; - - msg = kmalloc(sizeof(*msg) + ckdev->cols, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - msg->version = 0; - msg->command = EC_CMD_MKBP_STATE; - msg->insize = ckdev->cols; - msg->outsize = 0; - - ret = cros_ec_cmd_xfer(ckdev->ec, msg); - if (ret < 0) { - dev_err(ckdev->dev, "Error transferring EC message %d\n", ret); - goto exit; - } - - memcpy(kb_state, msg->data, ckdev->cols); -exit: - kfree(msg); - return ret; -} - -static irqreturn_t cros_ec_keyb_irq(int irq, void *data) +static int cros_ec_keyb_open(struct input_dev *dev) { - struct cros_ec_keyb *ckdev = data; - struct cros_ec_device *ec = ckdev->ec; - int ret; - uint8_t kb_state[ckdev->cols]; - - if (device_may_wakeup(ec->dev)) - pm_wakeup_event(ec->dev, 0); - - ret = cros_ec_keyb_get_state(ckdev, kb_state); - if (ret >= 0) - cros_ec_keyb_process(ckdev, kb_state, ret); - else - dev_err(ckdev->dev, "failed to get keyboard state: %d\n", ret); + struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - return IRQ_HANDLED; + return blocking_notifier_chain_register(&ckdev->ec->event_notifier, + &ckdev->notifier); } -static int cros_ec_keyb_open(struct input_dev *dev) +static void cros_ec_keyb_close(struct input_dev *dev) { struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - struct cros_ec_device *ec = ckdev->ec; - return request_threaded_irq(ec->irq, NULL, cros_ec_keyb_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "cros_ec_keyb", ckdev); + blocking_notifier_chain_unregister(&ckdev->ec->event_notifier, + &ckdev->notifier); } -static void cros_ec_keyb_close(struct input_dev *dev) +static int cros_ec_keyb_work(struct notifier_block *nb, + unsigned long queued_during_suspend, void *_notify) { - struct cros_ec_keyb *ckdev = input_get_drvdata(dev); - struct cros_ec_device *ec = ckdev->ec; + struct cros_ec_keyb *ckdev = container_of(nb, struct cros_ec_keyb, + notifier); - free_irq(ec->irq, ckdev); + if (ckdev->ec->event_data.event_type != EC_MKBP_EVENT_KEY_MATRIX) + return NOTIFY_DONE; + /* + * If EC is not the wake source, discard key state changes during + * suspend. + */ + if (queued_during_suspend) + return NOTIFY_OK; + if (ckdev->ec->event_size != ckdev->cols) { + dev_err(ckdev->dev, + "Discarded incomplete key matrix event.\n"); + return NOTIFY_OK; + } + cros_ec_keyb_process(ckdev, ckdev->ec->event_data.data.key_matrix, + ckdev->ec->event_size); + return NOTIFY_OK; } /* @@ -265,12 +245,8 @@ static int cros_ec_keyb_probe(struct platform_device *pdev) if (!idev) return -ENOMEM; - if (!ec->irq) { - dev_err(dev, "no EC IRQ specified\n"); - return -EINVAL; - } - ckdev->ec = ec; + ckdev->notifier.notifier_call = cros_ec_keyb_work; ckdev->dev = dev; dev_set_drvdata(dev, ckdev); @@ -311,54 +287,6 @@ static int cros_ec_keyb_probe(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -/* Clear any keys in the buffer */ -static void cros_ec_keyb_clear_keyboard(struct cros_ec_keyb *ckdev) -{ - uint8_t old_state[ckdev->cols]; - uint8_t new_state[ckdev->cols]; - unsigned long duration; - int i, ret; - - /* - * Keep reading until we see that the scan state does not change. - * That indicates that we are done. - * - * Assume that the EC keyscan buffer is at most 32 deep. - */ - duration = jiffies; - ret = cros_ec_keyb_get_state(ckdev, new_state); - for (i = 1; !ret && i < 32; i++) { - memcpy(old_state, new_state, sizeof(old_state)); - ret = cros_ec_keyb_get_state(ckdev, new_state); - if (0 == memcmp(old_state, new_state, sizeof(old_state))) - break; - } - duration = jiffies - duration; - dev_info(ckdev->dev, "Discarded %d keyscan(s) in %dus\n", i, - jiffies_to_usecs(duration)); -} - -static int cros_ec_keyb_resume(struct device *dev) -{ - struct cros_ec_keyb *ckdev = dev_get_drvdata(dev); - - /* - * When the EC is not a wake source, then it could not have caused the - * resume, so we clear the EC's key scan buffer. If the EC was a - * wake source (e.g. the lid is open and the user might press a key to - * wake) then the key scan buffer should be preserved. - */ - if (!ckdev->ec->was_wake_device) - cros_ec_keyb_clear_keyboard(ckdev); - - return 0; -} - -#endif - -static SIMPLE_DEV_PM_OPS(cros_ec_keyb_pm_ops, NULL, cros_ec_keyb_resume); - #ifdef CONFIG_OF static const struct of_device_id cros_ec_keyb_of_match[] = { { .compatible = "google,cros-ec-keyb" }, @@ -372,7 +300,6 @@ static struct platform_driver cros_ec_keyb_driver = { .driver = { .name = "cros-ec-keyb", .of_match_table = of_match_ptr(cros_ec_keyb_of_match), - .pm = &cros_ec_keyb_pm_ops, }, }; diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c index 421d9c55b0e8..1277c39f9482 100644 --- a/drivers/input/keyboard/jornada720_kbd.c +++ b/drivers/input/keyboard/jornada720_kbd.c @@ -25,8 +25,6 @@ #include <linux/slab.h> #include <mach/jornada720.h> -#include <mach/hardware.h> -#include <mach/irqs.h> MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>"); MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver"); @@ -66,10 +64,8 @@ static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id) jornada_ssp_start(); if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) { - printk(KERN_DEBUG - "jornada720_kbd: " - "GetKeycode command failed with ETIMEDOUT, " - "flushed bus\n"); + dev_dbg(&pdev->dev, + "GetKeycode command failed with ETIMEDOUT, flushed bus\n"); } else { /* How many keycodes are waiting for us? */ count = jornada_ssp_byte(TXDUMMY); @@ -97,14 +93,16 @@ static int jornada720_kbd_probe(struct platform_device *pdev) { struct jornadakbd *jornadakbd; struct input_dev *input_dev; - int i, err; + int i, err, irq; - jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!jornadakbd || !input_dev) { - err = -ENOMEM; - goto fail1; - } + irq = platform_get_irq(pdev, 0); + if (irq <= 0) + return irq < 0 ? irq : -EINVAL; + + jornadakbd = devm_kzalloc(&pdev->dev, sizeof(*jornadakbd), GFP_KERNEL); + input_dev = devm_input_allocate_device(&pdev->dev); + if (!jornadakbd || !input_dev) + return -ENOMEM; platform_set_drvdata(pdev, jornadakbd); @@ -127,40 +125,16 @@ static int jornada720_kbd_probe(struct platform_device *pdev) input_set_capability(input_dev, EV_MSC, MSC_SCAN); - err = request_irq(IRQ_GPIO0, - jornada720_kbd_interrupt, - IRQF_TRIGGER_FALLING, - "jornadakbd", pdev); + err = devm_request_irq(&pdev->dev, irq, jornada720_kbd_interrupt, + IRQF_TRIGGER_FALLING, "jornadakbd", pdev); if (err) { - printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n"); - goto fail1; + dev_err(&pdev->dev, "unable to grab IRQ%d: %d\n", irq, err); + return err; } - err = input_register_device(jornadakbd->input); - if (err) - goto fail2; - - return 0; - - fail2: /* IRQ, DEVICE, MEMORY */ - free_irq(IRQ_GPIO0, pdev); - fail1: /* DEVICE, MEMORY */ - input_free_device(input_dev); - kfree(jornadakbd); - return err; + return input_register_device(jornadakbd->input); }; -static int jornada720_kbd_remove(struct platform_device *pdev) -{ - struct jornadakbd *jornadakbd = platform_get_drvdata(pdev); - - free_irq(IRQ_GPIO0, pdev); - input_unregister_device(jornadakbd->input); - kfree(jornadakbd); - - return 0; -} - /* work with hotplug and coldplug */ MODULE_ALIAS("platform:jornada720_kbd"); @@ -169,6 +143,5 @@ static struct platform_driver jornada720_kbd_driver = { .name = "jornada720_kbd", }, .probe = jornada720_kbd_probe, - .remove = jornada720_kbd_remove, }; module_platform_driver(jornada720_kbd_driver); diff --git a/drivers/input/keyboard/snvs_pwrkey.c b/drivers/input/keyboard/snvs_pwrkey.c index 24a9f599082f..7544888c4749 100644 --- a/drivers/input/keyboard/snvs_pwrkey.c +++ b/drivers/input/keyboard/snvs_pwrkey.c @@ -168,7 +168,6 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev) error = input_register_device(input); if (error < 0) { dev_err(&pdev->dev, "failed to register input device\n"); - input_free_device(input); return error; } diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index efb0ca871327..7ffb614ce566 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -292,6 +292,18 @@ config INPUT_GPIO_TILT_POLLED To compile this driver as a module, choose M here: the module will be called gpio_tilt_polled. +config INPUT_GPIO_DECODER + tristate "Polled GPIO Decoder Input driver" + depends on GPIOLIB || COMPILE_TEST + select INPUT_POLLDEV + help + Say Y here if you want driver to read status of multiple GPIO + lines and report the encoded value as an absolute integer to + input subsystem. + + To compile this driver as a module, choose M here: the module + will be called gpio_decoder. + config INPUT_IXP4XX_BEEPER tristate "IXP4XX Beeper support" depends on ARCH_IXP4XX @@ -454,10 +466,10 @@ config INPUT_RETU_PWRBUTTON config INPUT_TPS65218_PWRBUTTON tristate "TPS65218 Power button driver" - depends on MFD_TPS65218 + depends on (MFD_TPS65217 || MFD_TPS65218) help Say Y here if you want to enable power buttong reporting for - the TPS65218 Power Management IC device. + TPS65217 and TPS65218 Power Management IC devices. To compile this driver as a module, choose M here. The module will be called tps65218-pwrbutton. diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 6a1e5e20fc1c..0b6d025f0487 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o +obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_IMS_PCU) += ims-pcu.o diff --git a/drivers/input/misc/gpio_decoder.c b/drivers/input/misc/gpio_decoder.c new file mode 100644 index 000000000000..ca7e0bacb2d8 --- /dev/null +++ b/drivers/input/misc/gpio_decoder.c @@ -0,0 +1,137 @@ +/* + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * A generic driver to read multiple gpio lines and translate the + * encoded numeric value into an input event. + */ + +#include <linux/device.h> +#include <linux/gpio/consumer.h> +#include <linux/input.h> +#include <linux/input-polldev.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> + +struct gpio_decoder { + struct input_polled_dev *poll_dev; + struct gpio_descs *input_gpios; + struct device *dev; + u32 axis; + u32 last_stable; +}; + +static int gpio_decoder_get_gpios_state(struct gpio_decoder *decoder) +{ + struct gpio_descs *gpios = decoder->input_gpios; + unsigned int ret = 0; + int i, val; + + for (i = 0; i < gpios->ndescs; i++) { + val = gpiod_get_value_cansleep(gpios->desc[i]); + if (val < 0) { + dev_err(decoder->dev, + "Error reading gpio %d: %d\n", + desc_to_gpio(gpios->desc[i]), val); + return val; + } + + val = !!val; + ret = (ret << 1) | val; + } + + return ret; +} + +static void gpio_decoder_poll_gpios(struct input_polled_dev *poll_dev) +{ + struct gpio_decoder *decoder = poll_dev->private; + int state; + + state = gpio_decoder_get_gpios_state(decoder); + if (state >= 0 && state != decoder->last_stable) { + input_report_abs(poll_dev->input, decoder->axis, state); + input_sync(poll_dev->input); + decoder->last_stable = state; + } +} + +static int gpio_decoder_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct gpio_decoder *decoder; + struct input_polled_dev *poll_dev; + u32 max; + int err; + + decoder = devm_kzalloc(dev, sizeof(struct gpio_decoder), GFP_KERNEL); + if (!decoder) + return -ENOMEM; + + device_property_read_u32(dev, "linux,axis", &decoder->axis); + decoder->input_gpios = devm_gpiod_get_array(dev, NULL, GPIOD_IN); + if (IS_ERR(decoder->input_gpios)) { + dev_err(dev, "unable to acquire input gpios\n"); + return PTR_ERR(decoder->input_gpios); + } + if (decoder->input_gpios->ndescs < 2) { + dev_err(dev, "not enough gpios found\n"); + return -EINVAL; + } + + if (device_property_read_u32(dev, "decoder-max-value", &max)) + max = (1U << decoder->input_gpios->ndescs) - 1; + + decoder->dev = dev; + poll_dev = devm_input_allocate_polled_device(decoder->dev); + if (!poll_dev) + return -ENOMEM; + + poll_dev->private = decoder; + poll_dev->poll = gpio_decoder_poll_gpios; + decoder->poll_dev = poll_dev; + + poll_dev->input->name = pdev->name; + poll_dev->input->id.bustype = BUS_HOST; + input_set_abs_params(poll_dev->input, decoder->axis, 0, max, 0, 0); + + err = input_register_polled_device(poll_dev); + if (err) { + dev_err(dev, "failed to register polled device\n"); + return err; + } + platform_set_drvdata(pdev, decoder); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id gpio_decoder_of_match[] = { + { .compatible = "gpio-decoder", }, + { }, +}; +MODULE_DEVICE_TABLE(of, gpio_decoder_of_match); +#endif + +static struct platform_driver gpio_decoder_driver = { + .probe = gpio_decoder_probe, + .driver = { + .name = "gpio-decoder", + .of_match_table = of_match_ptr(gpio_decoder_of_match), + } +}; +module_platform_driver(gpio_decoder_driver); + +MODULE_DESCRIPTION("GPIO decoder input driver"); +MODULE_AUTHOR("Vignesh R <vigneshr@ti.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 29ddeb7be84b..46b0f48fbf49 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -3,7 +3,7 @@ * * Copyright (C) 2014,2015 Samsung Electronics * Jaewon Kim <jaewon02.kim@samsung.com> - * Krzysztof Kozlowski <k.kozlowski@samsung.com> + * Krzysztof Kozlowski <krzk@kernel.org> * * This program is not provided / owned by Maxim Integrated Products. * @@ -426,7 +426,7 @@ static struct platform_driver max77693_haptic_driver = { module_platform_driver(max77693_haptic_driver); MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@samsung.com>"); -MODULE_AUTHOR("Krzysztof Kozlowski <k.kozlowski@samsung.com>"); +MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>"); MODULE_DESCRIPTION("MAXIM 77693/77843 Haptic driver"); MODULE_ALIAS("platform:max77693-haptic"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/tps65218-pwrbutton.c b/drivers/input/misc/tps65218-pwrbutton.c index a39b62651a4b..3273217ce80c 100644 --- a/drivers/input/misc/tps65218-pwrbutton.c +++ b/drivers/input/misc/tps65218-pwrbutton.c @@ -1,8 +1,9 @@ /* - * Texas Instruments' TPS65218 Power Button Input Driver + * Texas Instruments' TPS65217 and TPS65218 Power Button Input Driver * * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ * Author: Felipe Balbi <balbi@ti.com> + * Author: Marcin Niestroj <m.niestroj@grinn-global.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -18,31 +19,61 @@ #include <linux/input.h> #include <linux/interrupt.h> #include <linux/kernel.h> +#include <linux/mfd/tps65217.h> #include <linux/mfd/tps65218.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/slab.h> -struct tps65218_pwrbutton { +struct tps6521x_data { + unsigned int reg_status; + unsigned int pb_mask; + const char *name; +}; + +static const struct tps6521x_data tps65217_data = { + .reg_status = TPS65217_REG_STATUS, + .pb_mask = TPS65217_STATUS_PB, + .name = "tps65217_pwrbutton", +}; + +static const struct tps6521x_data tps65218_data = { + .reg_status = TPS65218_REG_STATUS, + .pb_mask = TPS65218_STATUS_PB_STATE, + .name = "tps65218_pwrbutton", +}; + +struct tps6521x_pwrbutton { struct device *dev; - struct tps65218 *tps; + struct regmap *regmap; struct input_dev *idev; + const struct tps6521x_data *data; + char phys[32]; +}; + +static const struct of_device_id of_tps6521x_pb_match[] = { + { .compatible = "ti,tps65217-pwrbutton", .data = &tps65217_data }, + { .compatible = "ti,tps65218-pwrbutton", .data = &tps65218_data }, + { }, }; +MODULE_DEVICE_TABLE(of, of_tps6521x_pb_match); -static irqreturn_t tps65218_pwr_irq(int irq, void *_pwr) +static irqreturn_t tps6521x_pb_irq(int irq, void *_pwr) { - struct tps65218_pwrbutton *pwr = _pwr; + struct tps6521x_pwrbutton *pwr = _pwr; + const struct tps6521x_data *tps_data = pwr->data; unsigned int reg; int error; - error = tps65218_reg_read(pwr->tps, TPS65218_REG_STATUS, ®); + error = regmap_read(pwr->regmap, tps_data->reg_status, ®); if (error) { dev_err(pwr->dev, "can't read register: %d\n", error); goto out; } - if (reg & TPS65218_STATUS_PB_STATE) { + if (reg & tps_data->pb_mask) { input_report_key(pwr->idev, KEY_POWER, 1); pm_wakeup_event(pwr->dev, 0); } else { @@ -55,42 +86,55 @@ out: return IRQ_HANDLED; } -static int tps65218_pwron_probe(struct platform_device *pdev) +static int tps6521x_pb_probe(struct platform_device *pdev) { - struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent); struct device *dev = &pdev->dev; - struct tps65218_pwrbutton *pwr; + struct tps6521x_pwrbutton *pwr; struct input_dev *idev; + const struct of_device_id *match; int error; int irq; + match = of_match_node(of_tps6521x_pb_match, pdev->dev.of_node); + if (!match) + return -ENXIO; + pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL); if (!pwr) return -ENOMEM; + pwr->data = match->data; + idev = devm_input_allocate_device(dev); if (!idev) return -ENOMEM; - idev->name = "tps65218_pwrbutton"; - idev->phys = "tps65218_pwrbutton/input0"; + idev->name = pwr->data->name; + snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0", + pwr->data->name); + idev->phys = pwr->phys; idev->dev.parent = dev; idev->id.bustype = BUS_I2C; input_set_capability(idev, EV_KEY, KEY_POWER); - pwr->tps = tps; + pwr->regmap = dev_get_regmap(pdev->dev.parent, NULL); pwr->dev = dev; pwr->idev = idev; platform_set_drvdata(pdev, pwr); device_init_wakeup(dev, true); irq = platform_get_irq(pdev, 0); - error = devm_request_threaded_irq(dev, irq, NULL, tps65218_pwr_irq, + if (irq < 0) { + dev_err(dev, "No IRQ resource!\n"); + return -EINVAL; + } + + error = devm_request_threaded_irq(dev, irq, NULL, tps6521x_pb_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "tps65218-pwrbutton", pwr); + pwr->data->name, pwr); if (error) { dev_err(dev, "failed to request IRQ #%d: %d\n", irq, error); @@ -106,21 +150,15 @@ static int tps65218_pwron_probe(struct platform_device *pdev) return 0; } -static const struct of_device_id of_tps65218_pwr_match[] = { - { .compatible = "ti,tps65218-pwrbutton" }, - { }, -}; -MODULE_DEVICE_TABLE(of, of_tps65218_pwr_match); - -static struct platform_driver tps65218_pwron_driver = { - .probe = tps65218_pwron_probe, +static struct platform_driver tps6521x_pb_driver = { + .probe = tps6521x_pb_probe, .driver = { - .name = "tps65218_pwrbutton", - .of_match_table = of_tps65218_pwr_match, + .name = "tps6521x_pwrbutton", + .of_match_table = of_tps6521x_pb_match, }, }; -module_platform_driver(tps65218_pwron_driver); +module_platform_driver(tps6521x_pb_driver); -MODULE_DESCRIPTION("TPS65218 Power Button"); +MODULE_DESCRIPTION("TPS6521X Power Button"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 65ebbd111702..92595b98e7ed 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -1013,23 +1013,12 @@ static struct miscdevice uinput_misc = { .minor = UINPUT_MINOR, .name = UINPUT_NAME, }; +module_misc_device(uinput_misc); + MODULE_ALIAS_MISCDEV(UINPUT_MINOR); MODULE_ALIAS("devname:" UINPUT_NAME); -static int __init uinput_init(void) -{ - return misc_register(&uinput_misc); -} - -static void __exit uinput_exit(void) -{ - misc_deregister(&uinput_misc); -} - MODULE_AUTHOR("Aristeu Sergio Rozanski Filho"); MODULE_DESCRIPTION("User level driver support for input subsystem"); MODULE_LICENSE("GPL"); MODULE_VERSION("0.3"); - -module_init(uinput_init); -module_exit(uinput_exit); diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 936f07a4e35f..6d7de9bfed9a 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -103,6 +103,7 @@ static const struct alps_nibble_commands alps_v6_nibble_commands[] = { 6-byte ALPS packet */ #define ALPS_STICK_BITS 0x100 /* separate stick button bits */ #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ +#define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */ static const struct alps_model_info alps_model_data[] = { { { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */ @@ -1156,15 +1157,28 @@ static unsigned char alps_get_pkt_id_ss4_v2(unsigned char *byte) { unsigned char pkt_id = SS4_PACKET_ID_IDLE; - if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 && - (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && byte[5] == 0x00) { - pkt_id = SS4_PACKET_ID_IDLE; - } else if (!(byte[3] & 0x10)) { - pkt_id = SS4_PACKET_ID_ONE; - } else if (!(byte[3] & 0x20)) { + switch (byte[3] & 0x30) { + case 0x00: + if (byte[0] == 0x18 && byte[1] == 0x10 && byte[2] == 0x00 && + (byte[3] & 0x88) == 0x08 && byte[4] == 0x10 && + byte[5] == 0x00) { + pkt_id = SS4_PACKET_ID_IDLE; + } else { + pkt_id = SS4_PACKET_ID_ONE; + } + break; + case 0x10: + /* two-finger finger positions */ pkt_id = SS4_PACKET_ID_TWO; - } else { + break; + case 0x20: + /* stick pointer */ + pkt_id = SS4_PACKET_ID_STICK; + break; + case 0x30: + /* third and fourth finger positions */ pkt_id = SS4_PACKET_ID_MULTI; + break; } return pkt_id; @@ -1185,7 +1199,13 @@ static int alps_decode_ss4_v2(struct alps_fields *f, f->mt[0].x = SS4_1F_X_V2(p); f->mt[0].y = SS4_1F_Y_V2(p); f->pressure = ((SS4_1F_Z_V2(p)) * 2) & 0x7f; - f->fingers = 1; + /* + * When a button is held the device will give us events + * with x, y, and pressure of 0. This causes annoying jumps + * if a touch is released while the button is held. + * Handle this by claiming zero contacts. + */ + f->fingers = f->pressure > 0 ? 1 : 0; f->first_mp = 0; f->is_mp = 0; break; @@ -1246,16 +1266,40 @@ static int alps_decode_ss4_v2(struct alps_fields *f, } break; + case SS4_PACKET_ID_STICK: + if (!(priv->flags & ALPS_DUALPOINT)) { + psmouse_warn(psmouse, + "Rejected trackstick packet from non DualPoint device"); + } else { + int x = (s8)(((p[0] & 1) << 7) | (p[1] & 0x7f)); + int y = (s8)(((p[3] & 1) << 7) | (p[2] & 0x7f)); + int pressure = (s8)(p[4] & 0x7f); + + input_report_rel(priv->dev2, REL_X, x); + input_report_rel(priv->dev2, REL_Y, -y); + input_report_abs(priv->dev2, ABS_PRESSURE, pressure); + } + break; + case SS4_PACKET_ID_IDLE: default: memset(f, 0, sizeof(struct alps_fields)); break; } - f->left = !!(SS4_BTN_V2(p) & 0x01); - if (!(priv->flags & ALPS_BUTTONPAD)) { - f->right = !!(SS4_BTN_V2(p) & 0x02); - f->middle = !!(SS4_BTN_V2(p) & 0x04); + /* handle buttons */ + if (pkt_id == SS4_PACKET_ID_STICK) { + f->ts_left = !!(SS4_BTN_V2(p) & 0x01); + if (!(priv->flags & ALPS_BUTTONPAD)) { + f->ts_right = !!(SS4_BTN_V2(p) & 0x02); + f->ts_middle = !!(SS4_BTN_V2(p) & 0x04); + } + } else { + f->left = !!(SS4_BTN_V2(p) & 0x01); + if (!(priv->flags & ALPS_BUTTONPAD)) { + f->right = !!(SS4_BTN_V2(p) & 0x02); + f->middle = !!(SS4_BTN_V2(p) & 0x04); + } } return 0; @@ -1266,6 +1310,7 @@ static void alps_process_packet_ss4_v2(struct psmouse *psmouse) struct alps_data *priv = psmouse->private; unsigned char *packet = psmouse->packet; struct input_dev *dev = psmouse->dev; + struct input_dev *dev2 = priv->dev2; struct alps_fields *f = &priv->f; memset(f, 0, sizeof(struct alps_fields)); @@ -1311,6 +1356,13 @@ static void alps_process_packet_ss4_v2(struct psmouse *psmouse) input_report_abs(dev, ABS_PRESSURE, f->pressure); input_sync(dev); + + if (priv->flags & ALPS_DUALPOINT) { + input_report_key(dev2, BTN_LEFT, f->ts_left); + input_report_key(dev2, BTN_RIGHT, f->ts_right); + input_report_key(dev2, BTN_MIDDLE, f->ts_middle); + input_sync(dev2); + } } static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse) @@ -2695,6 +2747,10 @@ static int alps_set_protocol(struct psmouse *psmouse, if (alps_set_defaults_ss4_v2(psmouse, priv)) return -EIO; + if (priv->fw_ver[1] == 0x1) + priv->flags |= ALPS_DUALPOINT | + ALPS_DUALPOINT_WITH_PRESSURE; + break; } @@ -2767,6 +2823,9 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x14 && ec[1] == 0x02) { protocol = &alps_v8_protocol_data; + } else if (e7[0] == 0x73 && e7[1] == 0x03 && + e7[2] == 0x28 && ec[1] == 0x01) { + protocol = &alps_v8_protocol_data; } else { psmouse_dbg(psmouse, "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); @@ -2949,6 +3008,10 @@ int alps_init(struct psmouse *psmouse) input_set_capability(dev2, EV_REL, REL_X); input_set_capability(dev2, EV_REL, REL_Y); + if (priv->flags & ALPS_DUALPOINT_WITH_PRESSURE) { + input_set_capability(dev2, EV_ABS, ABS_PRESSURE); + input_set_abs_params(dev2, ABS_PRESSURE, 0, 127, 0, 0); + } input_set_capability(dev2, EV_KEY, BTN_LEFT); input_set_capability(dev2, EV_KEY, BTN_RIGHT); input_set_capability(dev2, EV_KEY, BTN_MIDDLE); diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h index d37f814dc447..b9417e2d7ad3 100644 --- a/drivers/input/mouse/alps.h +++ b/drivers/input/mouse/alps.h @@ -37,12 +37,14 @@ * or there's button activities. * SS4_PACKET_ID_TWO: There's two or more fingers on touchpad * SS4_PACKET_ID_MULTI: There's three or more fingers on touchpad + * SS4_PACKET_ID_STICK: A stick pointer packet */ enum SS4_PACKET_ID { SS4_PACKET_ID_IDLE = 0, SS4_PACKET_ID_ONE, SS4_PACKET_ID_TWO, SS4_PACKET_ID_MULTI, + SS4_PACKET_ID_STICK, }; #define SS4_COUNT_PER_ELECTRODE 256 diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c index cb6aecbc1dc2..e23b2495d52e 100644 --- a/drivers/input/mouse/elan_i2c_smbus.c +++ b/drivers/input/mouse/elan_i2c_smbus.c @@ -222,11 +222,13 @@ static int elan_smbus_get_checksum(struct i2c_client *client, static int elan_smbus_get_max(struct i2c_client *client, unsigned int *max_x, unsigned int *max_y) { + int ret; int error; u8 val[3]; - error = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val); - if (error) { + ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RANGE_CMD, val); + if (ret != 3) { + error = ret < 0 ? ret : -EIO; dev_err(&client->dev, "failed to get dimensions: %d\n", error); return error; } @@ -240,12 +242,13 @@ static int elan_smbus_get_max(struct i2c_client *client, static int elan_smbus_get_resolution(struct i2c_client *client, u8 *hw_res_x, u8 *hw_res_y) { + int ret; int error; u8 val[3]; - error = i2c_smbus_read_block_data(client, - ETP_SMBUS_RESOLUTION_CMD, val); - if (error) { + ret = i2c_smbus_read_block_data(client, ETP_SMBUS_RESOLUTION_CMD, val); + if (ret != 3) { + error = ret < 0 ? ret : -EIO; dev_err(&client->dev, "failed to get resolution: %d\n", error); return error; } @@ -260,12 +263,13 @@ static int elan_smbus_get_num_traces(struct i2c_client *client, unsigned int *x_traces, unsigned int *y_traces) { + int ret; int error; u8 val[3]; - error = i2c_smbus_read_block_data(client, - ETP_SMBUS_XY_TRACENUM_CMD, val); - if (error) { + ret = i2c_smbus_read_block_data(client, ETP_SMBUS_XY_TRACENUM_CMD, val); + if (ret != 3) { + error = ret < 0 ? ret : -EIO; dev_err(&client->dev, "failed to get trace info: %d\n", error); return error; } diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 08e252a42480..db7d1d666ac1 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1134,7 +1134,7 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse, * System76 Pangolin 0x250f01 ? 2 hw buttons * (*) + 3 trackpoint buttons * (**) + 0 trackpoint buttons - * Note: Lenovo L430 and Lenovo L430 have the same fw_version/caps + * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps */ static void elantech_set_buttonpad_prop(struct psmouse *psmouse) { @@ -1159,6 +1159,13 @@ static const struct dmi_system_id elantech_dmi_has_middle_button[] = { DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"), }, }, + { + /* Fujitsu H760 also has a middle button */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"), + }, + }, #endif { } }; @@ -1503,10 +1510,10 @@ static const struct dmi_system_id elantech_dmi_force_crc_enabled[] = { }, }, { - /* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */ + /* Fujitsu H760 does not work with crc_enabled == 0 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), - DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"), + DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"), }, }, { @@ -1517,6 +1524,20 @@ static const struct dmi_system_id elantech_dmi_force_crc_enabled[] = { }, }, { + /* Fujitsu LIFEBOOK E554 does not work with crc_enabled == 0 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E554"), + }, + }, + { + /* Fujitsu LIFEBOOK E556 does not work with crc_enabled == 0 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E556"), + }, + }, + { /* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c index c8c6a8cc329d..54eceb30ede5 100644 --- a/drivers/input/mouse/focaltech.c +++ b/drivers/input/mouse/focaltech.c @@ -390,7 +390,8 @@ static int focaltech_read_size(struct psmouse *psmouse) return 0; } -void focaltech_set_resolution(struct psmouse *psmouse, unsigned int resolution) +static void focaltech_set_resolution(struct psmouse *psmouse, + unsigned int resolution) { /* not supported yet */ } diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 5784e20542a4..fb4b185dea96 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -1916,7 +1916,7 @@ static int __init psmouse_init(void) synaptics_module_init(); hgpk_module_init(); - kpsmoused_wq = create_singlethread_workqueue("kpsmoused"); + kpsmoused_wq = alloc_ordered_workqueue("kpsmoused", 0); if (!kpsmoused_wq) { pr_err("failed to create kpsmoused workqueue\n"); return -ENOMEM; diff --git a/drivers/input/rmi4/Kconfig b/drivers/input/rmi4/Kconfig index f73df2495fed..4c8a55857e00 100644 --- a/drivers/input/rmi4/Kconfig +++ b/drivers/input/rmi4/Kconfig @@ -61,3 +61,14 @@ config RMI4_F30 Function 30 provides GPIO and LED support for RMI4 devices. This includes support for buttons on TouchPads and ClickPads. + +config RMI4_F54 + bool "RMI4 Function 54 (Analog diagnostics)" + depends on RMI4_CORE + depends on VIDEO_V4L2=y || (RMI4_CORE=m && VIDEO_V4L2=m) + select VIDEOBUF2_VMALLOC + help + Say Y here if you want to add support for RMI4 function 54 + + Function 54 provides access to various diagnostic features in certain + RMI4 touch sensors. diff --git a/drivers/input/rmi4/Makefile b/drivers/input/rmi4/Makefile index 95c00a783992..0bafc8502c4b 100644 --- a/drivers/input/rmi4/Makefile +++ b/drivers/input/rmi4/Makefile @@ -7,6 +7,7 @@ rmi_core-$(CONFIG_RMI4_2D_SENSOR) += rmi_2d_sensor.o rmi_core-$(CONFIG_RMI4_F11) += rmi_f11.o rmi_core-$(CONFIG_RMI4_F12) += rmi_f12.o rmi_core-$(CONFIG_RMI4_F30) += rmi_f30.o +rmi_core-$(CONFIG_RMI4_F54) += rmi_f54.o # Transports obj-$(CONFIG_RMI4_I2C) += rmi_i2c.o diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c index a73580654c6b..ef8c747c35e7 100644 --- a/drivers/input/rmi4/rmi_bus.c +++ b/drivers/input/rmi4/rmi_bus.c @@ -9,7 +9,6 @@ #include <linux/kernel.h> #include <linux/device.h> -#include <linux/kconfig.h> #include <linux/list.h> #include <linux/pm.h> #include <linux/rmi.h> @@ -312,6 +311,9 @@ static struct rmi_function_handler *fn_handlers[] = { #ifdef CONFIG_RMI4_F30 &rmi_f30_handler, #endif +#ifdef CONFIG_RMI4_F54 + &rmi_f54_handler, +#endif }; static void __rmi_unregister_function_handlers(int start_idx) diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index c83bce89028b..4a88312fbd25 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -17,7 +17,6 @@ #include <linux/bitmap.h> #include <linux/delay.h> #include <linux/fs.h> -#include <linux/kconfig.h> #include <linux/pm.h> #include <linux/slab.h> #include <linux/of.h> diff --git a/drivers/input/rmi4/rmi_driver.h b/drivers/input/rmi4/rmi_driver.h index 6e140fa3cce1..8dfbebe9bf86 100644 --- a/drivers/input/rmi4/rmi_driver.h +++ b/drivers/input/rmi4/rmi_driver.h @@ -102,4 +102,5 @@ extern struct rmi_function_handler rmi_f01_handler; extern struct rmi_function_handler rmi_f11_handler; extern struct rmi_function_handler rmi_f12_handler; extern struct rmi_function_handler rmi_f30_handler; +extern struct rmi_function_handler rmi_f54_handler; #endif diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c index fac81fc9bcf6..b5d2dfc23bad 100644 --- a/drivers/input/rmi4/rmi_f01.c +++ b/drivers/input/rmi4/rmi_f01.c @@ -8,7 +8,6 @@ */ #include <linux/kernel.h> -#include <linux/kconfig.h> #include <linux/rmi.h> #include <linux/slab.h> #include <linux/uaccess.h> diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c index 20c7134b3d3b..f798f427a46f 100644 --- a/drivers/input/rmi4/rmi_f11.c +++ b/drivers/input/rmi4/rmi_f11.c @@ -12,7 +12,6 @@ #include <linux/device.h> #include <linux/input.h> #include <linux/input/mt.h> -#include <linux/kconfig.h> #include <linux/rmi.h> #include <linux/slab.h> #include <linux/of.h> diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c new file mode 100644 index 000000000000..cf805b960866 --- /dev/null +++ b/drivers/input/rmi4/rmi_f54.c @@ -0,0 +1,757 @@ +/* + * Copyright (c) 2012-2015 Synaptics Incorporated + * Copyright (C) 2016 Zodiac Inflight Innovations + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/rmi.h> +#include <linux/input.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/videobuf2-v4l2.h> +#include <media/videobuf2-vmalloc.h> +#include "rmi_driver.h" + +#define F54_NAME "rmi4_f54" + +/* F54 data offsets */ +#define F54_REPORT_DATA_OFFSET 3 +#define F54_FIFO_OFFSET 1 +#define F54_NUM_TX_OFFSET 1 +#define F54_NUM_RX_OFFSET 0 + +/* F54 commands */ +#define F54_GET_REPORT 1 +#define F54_FORCE_CAL 2 + +/* Fixed sizes of reports */ +#define F54_QUERY_LEN 27 + +/* F54 capabilities */ +#define F54_CAP_BASELINE (1 << 2) +#define F54_CAP_IMAGE8 (1 << 3) +#define F54_CAP_IMAGE16 (1 << 6) + +/** + * enum rmi_f54_report_type - RMI4 F54 report types + * + * @F54_8BIT_IMAGE: Normalized 8-Bit Image Report. The capacitance variance + * from baseline for each pixel. + * + * @F54_16BIT_IMAGE: Normalized 16-Bit Image Report. The capacitance variance + * from baseline for each pixel. + * + * @F54_RAW_16BIT_IMAGE: + * Raw 16-Bit Image Report. The raw capacitance for each + * pixel. + * + * @F54_TRUE_BASELINE: True Baseline Report. The baseline capacitance for each + * pixel. + * + * @F54_FULL_RAW_CAP: Full Raw Capacitance Report. The raw capacitance with + * low reference set to its minimum value and high + * reference set to its maximum value. + * + * @F54_FULL_RAW_CAP_RX_OFFSET_REMOVED: + * Full Raw Capacitance with Receiver Offset Removed + * Report. Set Low reference to its minimum value and high + * references to its maximum value, then report the raw + * capacitance for each pixel. + */ +enum rmi_f54_report_type { + F54_REPORT_NONE = 0, + F54_8BIT_IMAGE = 1, + F54_16BIT_IMAGE = 2, + F54_RAW_16BIT_IMAGE = 3, + F54_TRUE_BASELINE = 9, + F54_FULL_RAW_CAP = 19, + F54_FULL_RAW_CAP_RX_OFFSET_REMOVED = 20, + F54_MAX_REPORT_TYPE, +}; + +const char *rmi_f54_report_type_names[] = { + [F54_REPORT_NONE] = "Unknown", + [F54_8BIT_IMAGE] = "Normalized 8-Bit Image", + [F54_16BIT_IMAGE] = "Normalized 16-Bit Image", + [F54_RAW_16BIT_IMAGE] = "Raw 16-Bit Image", + [F54_TRUE_BASELINE] = "True Baseline", + [F54_FULL_RAW_CAP] = "Full Raw Capacitance", + [F54_FULL_RAW_CAP_RX_OFFSET_REMOVED] + = "Full Raw Capacitance RX Offset Removed", +}; + +struct rmi_f54_reports { + int start; + int size; +}; + +struct f54_data { + struct rmi_function *fn; + + u8 qry[F54_QUERY_LEN]; + u8 num_rx_electrodes; + u8 num_tx_electrodes; + u8 capabilities; + u16 clock_rate; + u8 family; + + enum rmi_f54_report_type report_type; + u8 *report_data; + int report_size; + struct rmi_f54_reports standard_report[2]; + + bool is_busy; + struct mutex status_mutex; + struct mutex data_mutex; + + struct workqueue_struct *workqueue; + struct delayed_work work; + unsigned long timeout; + + struct completion cmd_done; + + /* V4L2 support */ + struct v4l2_device v4l2; + struct v4l2_pix_format format; + struct video_device vdev; + struct vb2_queue queue; + struct mutex lock; + int input; + enum rmi_f54_report_type inputs[F54_MAX_REPORT_TYPE]; +}; + +/* + * Basic checks on report_type to ensure we write a valid type + * to the sensor. + */ +static bool is_f54_report_type_valid(struct f54_data *f54, + enum rmi_f54_report_type reptype) +{ + switch (reptype) { + case F54_8BIT_IMAGE: + return f54->capabilities & F54_CAP_IMAGE8; + case F54_16BIT_IMAGE: + case F54_RAW_16BIT_IMAGE: + return f54->capabilities & F54_CAP_IMAGE16; + case F54_TRUE_BASELINE: + return f54->capabilities & F54_CAP_IMAGE16; + case F54_FULL_RAW_CAP: + case F54_FULL_RAW_CAP_RX_OFFSET_REMOVED: + return true; + default: + return false; + } +} + +static enum rmi_f54_report_type rmi_f54_get_reptype(struct f54_data *f54, + unsigned int i) +{ + if (i >= F54_MAX_REPORT_TYPE) + return F54_REPORT_NONE; + + return f54->inputs[i]; +} + +static void rmi_f54_create_input_map(struct f54_data *f54) +{ + int i = 0; + enum rmi_f54_report_type reptype; + + for (reptype = 1; reptype < F54_MAX_REPORT_TYPE; reptype++) { + if (!is_f54_report_type_valid(f54, reptype)) + continue; + + f54->inputs[i++] = reptype; + } + + /* Remaining values are zero via kzalloc */ +} + +static int rmi_f54_request_report(struct rmi_function *fn, u8 report_type) +{ + struct f54_data *f54 = dev_get_drvdata(&fn->dev); + struct rmi_device *rmi_dev = fn->rmi_dev; + int error; + + /* Write Report Type into F54_AD_Data0 */ + if (f54->report_type != report_type) { + error = rmi_write(rmi_dev, f54->fn->fd.data_base_addr, + report_type); + if (error) + return error; + f54->report_type = report_type; + } + + /* + * Small delay after disabling interrupts to avoid race condition + * in firmare. This value is a bit higher than absolutely necessary. + * Should be removed once issue is resolved in firmware. + */ + usleep_range(2000, 3000); + + mutex_lock(&f54->data_mutex); + + error = rmi_write(rmi_dev, fn->fd.command_base_addr, F54_GET_REPORT); + if (error < 0) + return error; + + init_completion(&f54->cmd_done); + + f54->is_busy = 1; + f54->timeout = jiffies + msecs_to_jiffies(100); + + queue_delayed_work(f54->workqueue, &f54->work, 0); + + mutex_unlock(&f54->data_mutex); + + return 0; +} + +static size_t rmi_f54_get_report_size(struct f54_data *f54) +{ + u8 rx = f54->num_rx_electrodes ? : f54->num_rx_electrodes; + u8 tx = f54->num_tx_electrodes ? : f54->num_tx_electrodes; + size_t size; + + switch (rmi_f54_get_reptype(f54, f54->input)) { + case F54_8BIT_IMAGE: + size = rx * tx; + break; + case F54_16BIT_IMAGE: + case F54_RAW_16BIT_IMAGE: + case F54_TRUE_BASELINE: + case F54_FULL_RAW_CAP: + case F54_FULL_RAW_CAP_RX_OFFSET_REMOVED: + size = sizeof(u16) * rx * tx; + break; + default: + size = 0; + } + + return size; +} + +static int rmi_f54_get_pixel_fmt(enum rmi_f54_report_type reptype, u32 *pixfmt) +{ + int ret = 0; + + switch (reptype) { + case F54_8BIT_IMAGE: + *pixfmt = V4L2_TCH_FMT_DELTA_TD08; + break; + + case F54_16BIT_IMAGE: + *pixfmt = V4L2_TCH_FMT_DELTA_TD16; + break; + + case F54_RAW_16BIT_IMAGE: + case F54_TRUE_BASELINE: + case F54_FULL_RAW_CAP: + case F54_FULL_RAW_CAP_RX_OFFSET_REMOVED: + *pixfmt = V4L2_TCH_FMT_TU16; + break; + + case F54_REPORT_NONE: + case F54_MAX_REPORT_TYPE: + ret = -EINVAL; + break; + } + + return ret; +} + +static const struct v4l2_file_operations rmi_f54_video_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .unlocked_ioctl = video_ioctl2, + .read = vb2_fop_read, + .mmap = vb2_fop_mmap, + .poll = vb2_fop_poll, +}; + +static int rmi_f54_queue_setup(struct vb2_queue *q, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct f54_data *f54 = q->drv_priv; + + if (*nplanes) + return sizes[0] < rmi_f54_get_report_size(f54) ? -EINVAL : 0; + + *nplanes = 1; + sizes[0] = rmi_f54_get_report_size(f54); + + return 0; +} + +static void rmi_f54_buffer_queue(struct vb2_buffer *vb) +{ + struct f54_data *f54 = vb2_get_drv_priv(vb->vb2_queue); + u16 *ptr; + enum vb2_buffer_state state; + enum rmi_f54_report_type reptype; + int ret; + + mutex_lock(&f54->status_mutex); + + reptype = rmi_f54_get_reptype(f54, f54->input); + if (reptype == F54_REPORT_NONE) { + state = VB2_BUF_STATE_ERROR; + goto done; + } + + if (f54->is_busy) { + state = VB2_BUF_STATE_ERROR; + goto done; + } + + ret = rmi_f54_request_report(f54->fn, reptype); + if (ret) { + dev_err(&f54->fn->dev, "Error requesting F54 report\n"); + state = VB2_BUF_STATE_ERROR; + goto done; + } + + /* get frame data */ + mutex_lock(&f54->data_mutex); + + while (f54->is_busy) { + mutex_unlock(&f54->data_mutex); + if (!wait_for_completion_timeout(&f54->cmd_done, + msecs_to_jiffies(1000))) { + dev_err(&f54->fn->dev, "Timed out\n"); + state = VB2_BUF_STATE_ERROR; + goto done; + } + mutex_lock(&f54->data_mutex); + } + + ptr = vb2_plane_vaddr(vb, 0); + if (!ptr) { + dev_err(&f54->fn->dev, "Error acquiring frame ptr\n"); + state = VB2_BUF_STATE_ERROR; + goto data_done; + } + + memcpy(ptr, f54->report_data, f54->report_size); + vb2_set_plane_payload(vb, 0, rmi_f54_get_report_size(f54)); + state = VB2_BUF_STATE_DONE; + +data_done: + mutex_unlock(&f54->data_mutex); +done: + vb2_buffer_done(vb, state); + mutex_unlock(&f54->status_mutex); +} + +/* V4L2 structures */ +static const struct vb2_ops rmi_f54_queue_ops = { + .queue_setup = rmi_f54_queue_setup, + .buf_queue = rmi_f54_buffer_queue, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static const struct vb2_queue rmi_f54_queue = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ, + .buf_struct_size = sizeof(struct vb2_buffer), + .ops = &rmi_f54_queue_ops, + .mem_ops = &vb2_vmalloc_memops, + .timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, + .min_buffers_needed = 1, +}; + +static int rmi_f54_vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct f54_data *f54 = video_drvdata(file); + + strlcpy(cap->driver, F54_NAME, sizeof(cap->driver)); + strlcpy(cap->card, SYNAPTICS_INPUT_DEVICE_NAME, sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "rmi4:%s", dev_name(&f54->fn->dev)); + + return 0; +} + +static int rmi_f54_vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *i) +{ + struct f54_data *f54 = video_drvdata(file); + enum rmi_f54_report_type reptype; + + reptype = rmi_f54_get_reptype(f54, i->index); + if (reptype == F54_REPORT_NONE) + return -EINVAL; + + i->type = V4L2_INPUT_TYPE_TOUCH; + + strlcpy(i->name, rmi_f54_report_type_names[reptype], sizeof(i->name)); + return 0; +} + +static int rmi_f54_set_input(struct f54_data *f54, unsigned int i) +{ + struct v4l2_pix_format *f = &f54->format; + enum rmi_f54_report_type reptype; + int ret; + + reptype = rmi_f54_get_reptype(f54, i); + if (reptype == F54_REPORT_NONE) + return -EINVAL; + + ret = rmi_f54_get_pixel_fmt(reptype, &f->pixelformat); + if (ret) + return ret; + + f54->input = i; + + f->width = f54->num_rx_electrodes; + f->height = f54->num_tx_electrodes; + f->field = V4L2_FIELD_NONE; + f->colorspace = V4L2_COLORSPACE_RAW; + f->bytesperline = f->width * sizeof(u16); + f->sizeimage = f->width * f->height * sizeof(u16); + + return 0; +} + +static int rmi_f54_vidioc_s_input(struct file *file, void *priv, unsigned int i) +{ + return rmi_f54_set_input(video_drvdata(file), i); +} + +static int rmi_f54_vidioc_g_input(struct file *file, void *priv, + unsigned int *i) +{ + struct f54_data *f54 = video_drvdata(file); + + *i = f54->input; + + return 0; +} + +static int rmi_f54_vidioc_fmt(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct f54_data *f54 = video_drvdata(file); + + f->fmt.pix = f54->format; + + return 0; +} + +static int rmi_f54_vidioc_enum_fmt(struct file *file, void *priv, + struct v4l2_fmtdesc *fmt) +{ + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + switch (fmt->index) { + case 0: + fmt->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + break; + + case 1: + fmt->pixelformat = V4L2_TCH_FMT_DELTA_TD08; + break; + + case 2: + fmt->pixelformat = V4L2_TCH_FMT_TU16; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int rmi_f54_vidioc_g_parm(struct file *file, void *fh, + struct v4l2_streamparm *a) +{ + if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + a->parm.capture.readbuffers = 1; + a->parm.capture.timeperframe.numerator = 1; + a->parm.capture.timeperframe.denominator = 10; + return 0; +} + +static const struct v4l2_ioctl_ops rmi_f54_video_ioctl_ops = { + .vidioc_querycap = rmi_f54_vidioc_querycap, + + .vidioc_enum_fmt_vid_cap = rmi_f54_vidioc_enum_fmt, + .vidioc_s_fmt_vid_cap = rmi_f54_vidioc_fmt, + .vidioc_g_fmt_vid_cap = rmi_f54_vidioc_fmt, + .vidioc_try_fmt_vid_cap = rmi_f54_vidioc_fmt, + .vidioc_g_parm = rmi_f54_vidioc_g_parm, + + .vidioc_enum_input = rmi_f54_vidioc_enum_input, + .vidioc_g_input = rmi_f54_vidioc_g_input, + .vidioc_s_input = rmi_f54_vidioc_s_input, + + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, +}; + +static const struct video_device rmi_f54_video_device = { + .name = "Synaptics RMI4", + .fops = &rmi_f54_video_fops, + .ioctl_ops = &rmi_f54_video_ioctl_ops, + .release = video_device_release_empty, + .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TOUCH | + V4L2_CAP_READWRITE | V4L2_CAP_STREAMING, +}; + +static void rmi_f54_work(struct work_struct *work) +{ + struct f54_data *f54 = container_of(work, struct f54_data, work.work); + struct rmi_function *fn = f54->fn; + u8 fifo[2]; + struct rmi_f54_reports *report; + int report_size; + u8 command; + u8 *data; + int error; + + data = f54->report_data; + report_size = rmi_f54_get_report_size(f54); + if (report_size == 0) { + dev_err(&fn->dev, "Bad report size, report type=%d\n", + f54->report_type); + error = -EINVAL; + goto error; /* retry won't help */ + } + f54->standard_report[0].size = report_size; + report = f54->standard_report; + + mutex_lock(&f54->data_mutex); + + /* + * Need to check if command has completed. + * If not try again later. + */ + error = rmi_read(fn->rmi_dev, f54->fn->fd.command_base_addr, + &command); + if (error) { + dev_err(&fn->dev, "Failed to read back command\n"); + goto error; + } + if (command & F54_GET_REPORT) { + if (time_after(jiffies, f54->timeout)) { + dev_err(&fn->dev, "Get report command timed out\n"); + error = -ETIMEDOUT; + } + report_size = 0; + goto error; + } + + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Get report command completed, reading data\n"); + + report_size = 0; + for (; report->size; report++) { + fifo[0] = report->start & 0xff; + fifo[1] = (report->start >> 8) & 0xff; + error = rmi_write_block(fn->rmi_dev, + fn->fd.data_base_addr + F54_FIFO_OFFSET, + fifo, sizeof(fifo)); + if (error) { + dev_err(&fn->dev, "Failed to set fifo start offset\n"); + goto abort; + } + + error = rmi_read_block(fn->rmi_dev, fn->fd.data_base_addr + + F54_REPORT_DATA_OFFSET, data, + report->size); + if (error) { + dev_err(&fn->dev, "%s: read [%d bytes] returned %d\n", + __func__, report->size, error); + goto abort; + } + data += report->size; + report_size += report->size; + } + +abort: + f54->report_size = error ? 0 : report_size; +error: + if (error) + report_size = 0; + + if (report_size == 0 && !error) { + queue_delayed_work(f54->workqueue, &f54->work, + msecs_to_jiffies(1)); + } else { + f54->is_busy = false; + complete(&f54->cmd_done); + } + + mutex_unlock(&f54->data_mutex); +} + +static int rmi_f54_attention(struct rmi_function *fn, unsigned long *irqbits) +{ + return 0; +} + +static int rmi_f54_config(struct rmi_function *fn) +{ + struct rmi_driver *drv = fn->rmi_dev->driver; + + drv->set_irq_bits(fn->rmi_dev, fn->irq_mask); + + return 0; +} + +static int rmi_f54_detect(struct rmi_function *fn) +{ + int error; + struct f54_data *f54; + + f54 = dev_get_drvdata(&fn->dev); + + error = rmi_read_block(fn->rmi_dev, fn->fd.query_base_addr, + &f54->qry, sizeof(f54->qry)); + if (error) { + dev_err(&fn->dev, "%s: Failed to query F54 properties\n", + __func__); + return error; + } + + f54->num_rx_electrodes = f54->qry[0]; + f54->num_tx_electrodes = f54->qry[1]; + f54->capabilities = f54->qry[2]; + f54->clock_rate = f54->qry[3] | (f54->qry[4] << 8); + f54->family = f54->qry[5]; + + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F54 num_rx_electrodes: %d\n", + f54->num_rx_electrodes); + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F54 num_tx_electrodes: %d\n", + f54->num_tx_electrodes); + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F54 capabilities: 0x%x\n", + f54->capabilities); + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F54 clock rate: 0x%x\n", + f54->clock_rate); + rmi_dbg(RMI_DEBUG_FN, &fn->dev, "F54 family: 0x%x\n", + f54->family); + + f54->is_busy = false; + + return 0; +} + +static int rmi_f54_probe(struct rmi_function *fn) +{ + struct f54_data *f54; + int ret; + u8 rx, tx; + + f54 = devm_kzalloc(&fn->dev, sizeof(struct f54_data), GFP_KERNEL); + if (!f54) + return -ENOMEM; + + f54->fn = fn; + dev_set_drvdata(&fn->dev, f54); + + ret = rmi_f54_detect(fn); + if (ret) + return ret; + + mutex_init(&f54->data_mutex); + mutex_init(&f54->status_mutex); + + rx = f54->num_rx_electrodes; + tx = f54->num_tx_electrodes; + f54->report_data = devm_kzalloc(&fn->dev, + sizeof(u16) * tx * rx, + GFP_KERNEL); + if (f54->report_data == NULL) + return -ENOMEM; + + INIT_DELAYED_WORK(&f54->work, rmi_f54_work); + + f54->workqueue = create_singlethread_workqueue("rmi4-poller"); + if (!f54->workqueue) + return -ENOMEM; + + rmi_f54_create_input_map(f54); + + /* register video device */ + strlcpy(f54->v4l2.name, F54_NAME, sizeof(f54->v4l2.name)); + ret = v4l2_device_register(&fn->dev, &f54->v4l2); + if (ret) { + dev_err(&fn->dev, "Unable to register video dev.\n"); + goto remove_wq; + } + + /* initialize the queue */ + mutex_init(&f54->lock); + f54->queue = rmi_f54_queue; + f54->queue.drv_priv = f54; + f54->queue.lock = &f54->lock; + f54->queue.dev = &fn->dev; + + ret = vb2_queue_init(&f54->queue); + if (ret) + goto remove_v4l2; + + f54->vdev = rmi_f54_video_device; + f54->vdev.v4l2_dev = &f54->v4l2; + f54->vdev.lock = &f54->lock; + f54->vdev.vfl_dir = VFL_DIR_RX; + f54->vdev.queue = &f54->queue; + video_set_drvdata(&f54->vdev, f54); + + ret = video_register_device(&f54->vdev, VFL_TYPE_TOUCH, -1); + if (ret) { + dev_err(&fn->dev, "Unable to register video subdevice."); + goto remove_v4l2; + } + + return 0; + +remove_v4l2: + v4l2_device_unregister(&f54->v4l2); +remove_wq: + cancel_delayed_work_sync(&f54->work); + flush_workqueue(f54->workqueue); + destroy_workqueue(f54->workqueue); + return ret; +} + +static void rmi_f54_remove(struct rmi_function *fn) +{ + struct f54_data *f54 = dev_get_drvdata(&fn->dev); + + video_unregister_device(&f54->vdev); + v4l2_device_unregister(&f54->v4l2); +} + +struct rmi_function_handler rmi_f54_handler = { + .driver = { + .name = F54_NAME, + }, + .func = 0x54, + .probe = rmi_f54_probe, + .config = rmi_f54_config, + .attention = rmi_f54_attention, + .remove = rmi_f54_remove, +}; diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c index 6f2e0e4f0296..1ebc2c1debae 100644 --- a/drivers/input/rmi4/rmi_i2c.c +++ b/drivers/input/rmi4/rmi_i2c.c @@ -221,6 +221,21 @@ static const struct of_device_id rmi_i2c_of_match[] = { MODULE_DEVICE_TABLE(of, rmi_i2c_of_match); #endif +static void rmi_i2c_regulator_bulk_disable(void *data) +{ + struct rmi_i2c_xport *rmi_i2c = data; + + regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies), + rmi_i2c->supplies); +} + +static void rmi_i2c_unregister_transport(void *data) +{ + struct rmi_i2c_xport *rmi_i2c = data; + + rmi_unregister_transport_device(&rmi_i2c->xport); +} + static int rmi_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -264,6 +279,12 @@ static int rmi_i2c_probe(struct i2c_client *client, if (retval < 0) return retval; + retval = devm_add_action_or_reset(&client->dev, + rmi_i2c_regulator_bulk_disable, + rmi_i2c); + if (retval) + return retval; + of_property_read_u32(client->dev.of_node, "syna,startup-delay-ms", &rmi_i2c->startup_delay); @@ -294,6 +315,11 @@ static int rmi_i2c_probe(struct i2c_client *client, client->addr); return retval; } + retval = devm_add_action_or_reset(&client->dev, + rmi_i2c_unregister_transport, + rmi_i2c); + if (retval) + return retval; retval = rmi_i2c_init_irq(client); if (retval < 0) @@ -304,17 +330,6 @@ static int rmi_i2c_probe(struct i2c_client *client, return 0; } -static int rmi_i2c_remove(struct i2c_client *client) -{ - struct rmi_i2c_xport *rmi_i2c = i2c_get_clientdata(client); - - rmi_unregister_transport_device(&rmi_i2c->xport); - regulator_bulk_disable(ARRAY_SIZE(rmi_i2c->supplies), - rmi_i2c->supplies); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int rmi_i2c_suspend(struct device *dev) { @@ -431,7 +446,6 @@ static struct i2c_driver rmi_i2c_driver = { }, .id_table = rmi_id, .probe = rmi_i2c_probe, - .remove = rmi_i2c_remove, }; module_i2c_driver(rmi_i2c_driver); diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c index 55bd1b34970c..4ebef607e214 100644 --- a/drivers/input/rmi4/rmi_spi.c +++ b/drivers/input/rmi4/rmi_spi.c @@ -396,6 +396,13 @@ static inline int rmi_spi_of_probe(struct spi_device *spi, } #endif +static void rmi_spi_unregister_transport(void *data) +{ + struct rmi_spi_xport *rmi_spi = data; + + rmi_unregister_transport_device(&rmi_spi->xport); +} + static int rmi_spi_probe(struct spi_device *spi) { struct rmi_spi_xport *rmi_spi; @@ -464,6 +471,11 @@ static int rmi_spi_probe(struct spi_device *spi) dev_err(&spi->dev, "failed to register transport.\n"); return retval; } + retval = devm_add_action_or_reset(&spi->dev, + rmi_spi_unregister_transport, + rmi_spi); + if (retval) + return retval; retval = rmi_spi_init_irq(spi); if (retval < 0) @@ -473,15 +485,6 @@ static int rmi_spi_probe(struct spi_device *spi) return 0; } -static int rmi_spi_remove(struct spi_device *spi) -{ - struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi); - - rmi_unregister_transport_device(&rmi_spi->xport); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int rmi_spi_suspend(struct device *dev) { @@ -577,7 +580,6 @@ static struct spi_driver rmi_spi_driver = { }, .id_table = rmi_id, .probe = rmi_spi_probe, - .remove = rmi_spi_remove, }; module_spi_driver(rmi_spi_driver); diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h index a5eed2ade53d..34da81c006b6 100644 --- a/drivers/input/serio/i8042-io.h +++ b/drivers/input/serio/i8042-io.h @@ -81,7 +81,7 @@ static inline int i8042_platform_init(void) return -EBUSY; #endif - i8042_reset = 1; + i8042_reset = I8042_RESET_ALWAYS; return 0; } diff --git a/drivers/input/serio/i8042-ip22io.h b/drivers/input/serio/i8042-ip22io.h index ee1ad27d6ed0..08a1c10a1448 100644 --- a/drivers/input/serio/i8042-ip22io.h +++ b/drivers/input/serio/i8042-ip22io.h @@ -61,7 +61,7 @@ static inline int i8042_platform_init(void) return -EBUSY; #endif - i8042_reset = 1; + i8042_reset = I8042_RESET_ALWAYS; return 0; } diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h index f708c75d16f1..1aabea43329e 100644 --- a/drivers/input/serio/i8042-ppcio.h +++ b/drivers/input/serio/i8042-ppcio.h @@ -44,7 +44,7 @@ static inline void i8042_write_command(int val) static inline int i8042_platform_init(void) { - i8042_reset = 1; + i8042_reset = I8042_RESET_ALWAYS; return 0; } diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h index afcd1c1a05b2..6231d63860ee 100644 --- a/drivers/input/serio/i8042-sparcio.h +++ b/drivers/input/serio/i8042-sparcio.h @@ -130,7 +130,7 @@ static int __init i8042_platform_init(void) } } - i8042_reset = 1; + i8042_reset = I8042_RESET_ALWAYS; return 0; } diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h index 73f5cc124a36..455747552f85 100644 --- a/drivers/input/serio/i8042-unicore32io.h +++ b/drivers/input/serio/i8042-unicore32io.h @@ -61,7 +61,7 @@ static inline int i8042_platform_init(void) if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042")) return -EBUSY; - i8042_reset = 1; + i8042_reset = I8042_RESET_ALWAYS; return 0; } diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 68f5f4a0f1e7..f4bfb4b2d50a 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -510,6 +510,90 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = { { } }; +/* + * On some Asus laptops, just running self tests cause problems. + */ +static const struct dmi_system_id i8042_dmi_noselftest_table[] = { + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "A455LD"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "K401LB"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "K501LB"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "K501LX"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "R409L"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "V502LX"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X302LA"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X450LCP"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X450LD"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X455LAB"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X455LDB"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "X455LF"), + }, + }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "Z450LA"), + }, + }, + { } +}; static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = { { /* MSI Wind U-100 */ @@ -1072,12 +1156,18 @@ static int __init i8042_platform_init(void) return retval; #if defined(__ia64__) - i8042_reset = true; + i8042_reset = I8042_RESET_ALWAYS; #endif #ifdef CONFIG_X86 - if (dmi_check_system(i8042_dmi_reset_table)) - i8042_reset = true; + /* Honor module parameter when value is not default */ + if (i8042_reset == I8042_RESET_DEFAULT) { + if (dmi_check_system(i8042_dmi_reset_table)) + i8042_reset = I8042_RESET_ALWAYS; + + if (dmi_check_system(i8042_dmi_noselftest_table)) + i8042_reset = I8042_RESET_NEVER; + } if (dmi_check_system(i8042_dmi_noloop_table)) i8042_noloop = true; diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 405252a884dd..89abfdb539ac 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -48,9 +48,39 @@ static bool i8042_unlock; module_param_named(unlock, i8042_unlock, bool, 0); MODULE_PARM_DESC(unlock, "Ignore keyboard lock."); -static bool i8042_reset; -module_param_named(reset, i8042_reset, bool, 0); -MODULE_PARM_DESC(reset, "Reset controller during init and cleanup."); +enum i8042_controller_reset_mode { + I8042_RESET_NEVER, + I8042_RESET_ALWAYS, + I8042_RESET_ON_S2RAM, +#define I8042_RESET_DEFAULT I8042_RESET_ON_S2RAM +}; +static enum i8042_controller_reset_mode i8042_reset = I8042_RESET_DEFAULT; +static int i8042_set_reset(const char *val, const struct kernel_param *kp) +{ + enum i8042_controller_reset_mode *arg = kp->arg; + int error; + bool reset; + + if (val) { + error = kstrtobool(val, &reset); + if (error) + return error; + } else { + reset = true; + } + + *arg = reset ? I8042_RESET_ALWAYS : I8042_RESET_NEVER; + return 0; +} + +static const struct kernel_param_ops param_ops_reset_param = { + .flags = KERNEL_PARAM_OPS_FL_NOARG, + .set = i8042_set_reset, +}; +#define param_check_reset_param(name, p) \ + __param_check(name, p, enum i8042_controller_reset_mode) +module_param_named(reset, i8042_reset, reset_param, 0); +MODULE_PARM_DESC(reset, "Reset controller on resume, cleanup or both"); static bool i8042_direct; module_param_named(direct, i8042_direct, bool, 0); @@ -1019,7 +1049,7 @@ static int i8042_controller_init(void) * Reset the controller and reset CRT to the original value set by BIOS. */ -static void i8042_controller_reset(bool force_reset) +static void i8042_controller_reset(bool s2r_wants_reset) { i8042_flush(); @@ -1044,8 +1074,10 @@ static void i8042_controller_reset(bool force_reset) * Reset the controller if requested. */ - if (i8042_reset || force_reset) + if (i8042_reset == I8042_RESET_ALWAYS || + (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) { i8042_controller_selftest(); + } /* * Restore the original control register setting. @@ -1110,7 +1142,7 @@ static void i8042_dritek_enable(void) * before suspending. */ -static int i8042_controller_resume(bool force_reset) +static int i8042_controller_resume(bool s2r_wants_reset) { int error; @@ -1118,7 +1150,8 @@ static int i8042_controller_resume(bool force_reset) if (error) return error; - if (i8042_reset || force_reset) { + if (i8042_reset == I8042_RESET_ALWAYS || + (i8042_reset == I8042_RESET_ON_S2RAM && s2r_wants_reset)) { error = i8042_controller_selftest(); if (error) return error; @@ -1195,7 +1228,7 @@ static int i8042_pm_resume_noirq(struct device *dev) static int i8042_pm_resume(struct device *dev) { - bool force_reset; + bool want_reset; int i; for (i = 0; i < I8042_NUM_PORTS; i++) { @@ -1218,9 +1251,9 @@ static int i8042_pm_resume(struct device *dev) * off control to the platform firmware, otherwise we can simply restore * the mode. */ - force_reset = pm_resume_via_firmware(); + want_reset = pm_resume_via_firmware(); - return i8042_controller_resume(force_reset); + return i8042_controller_resume(want_reset); } static int i8042_pm_thaw(struct device *dev) @@ -1482,7 +1515,7 @@ static int __init i8042_probe(struct platform_device *dev) i8042_platform_device = dev; - if (i8042_reset) { + if (i8042_reset == I8042_RESET_ALWAYS) { error = i8042_controller_selftest(); if (error) return error; diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c index 9c927d35c1f5..d189843f3727 100644 --- a/drivers/input/serio/serport.c +++ b/drivers/input/serio/serport.c @@ -71,10 +71,7 @@ static void serport_serio_close(struct serio *serio) spin_lock_irqsave(&serport->lock, flags); clear_bit(SERPORT_ACTIVE, &serport->flags); - set_bit(SERPORT_DEAD, &serport->flags); spin_unlock_irqrestore(&serport->lock, flags); - - wake_up_interruptible(&serport->wait); } /* @@ -248,6 +245,19 @@ static long serport_ldisc_compat_ioctl(struct tty_struct *tty, } #endif +static int serport_ldisc_hangup(struct tty_struct *tty) +{ + struct serport *serport = (struct serport *) tty->disc_data; + unsigned long flags; + + spin_lock_irqsave(&serport->lock, flags); + set_bit(SERPORT_DEAD, &serport->flags); + spin_unlock_irqrestore(&serport->lock, flags); + + wake_up_interruptible(&serport->wait); + return 0; +} + static void serport_ldisc_write_wakeup(struct tty_struct * tty) { struct serport *serport = (struct serport *) tty->disc_data; @@ -274,6 +284,7 @@ static struct tty_ldisc_ops serport_ldisc = { .compat_ioctl = serport_ldisc_compat_ioctl, #endif .receive_buf = serport_ldisc_receive, + .hangup = serport_ldisc_hangup, .write_wakeup = serport_ldisc_write_wakeup }; diff --git a/drivers/input/tablet/pegasus_notetaker.c b/drivers/input/tablet/pegasus_notetaker.c index 949dacc78664..47de5a81172f 100644 --- a/drivers/input/tablet/pegasus_notetaker.c +++ b/drivers/input/tablet/pegasus_notetaker.c @@ -40,6 +40,7 @@ #include <linux/input.h> #include <linux/usb/input.h> #include <linux/slab.h> +#include <linux/workqueue.h> /* USB HID defines */ #define USB_REQ_GET_REPORT 0x01 diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 2fb1f430a431..efca0133e266 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -115,6 +115,15 @@ config TOUCHSCREEN_ATMEL_MXT To compile this driver as a module, choose M here: the module will be called atmel_mxt_ts. +config TOUCHSCREEN_ATMEL_MXT_T37 + bool "Support T37 Diagnostic Data" + depends on TOUCHSCREEN_ATMEL_MXT + depends on VIDEO_V4L2=y || (TOUCHSCREEN_ATMEL_MXT=m && VIDEO_V4L2=m) + select VIDEOBUF2_VMALLOC + help + Say Y here if you want support to output data from the T37 + Diagnostic Data object using a V4L device. + config TOUCHSCREEN_AUO_PIXCIR tristate "AUO in-cell touchscreen using Pixcir ICs" depends on I2C @@ -305,19 +314,6 @@ config TOUCHSCREEN_EGALAX_SERIAL To compile this driver as a module, choose M here: the module will be called egalax_ts_serial. -config TOUCHSCREEN_FT6236 - tristate "FT6236 I2C touchscreen" - depends on I2C - depends on GPIOLIB || COMPILE_TEST - help - Say Y here to enable support for the I2C connected FT6x06 and - FT6x36 family of capacitive touchscreen drivers. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called ft6236. - config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" select SERIO @@ -397,6 +393,18 @@ config TOUCHSCREEN_GUNZE To compile this driver as a module, choose M here: the module will be called gunze. +config TOUCHSCREEN_EKTF2127 + tristate "Elan eKTF2127 I2C touchscreen" + depends on I2C + help + Say Y here if you have an Elan eKTF2127 touchscreen + connected to your system. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called ektf2127. + config TOUCHSCREEN_ELAN tristate "Elan eKTH I2C touchscreen" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index b4373d6be402..81b86451782d 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -32,11 +32,11 @@ obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06) += edt-ft5x06.o obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o +obj-$(CONFIG_TOUCHSCREEN_EKTF2127) += ektf2127.o obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o -obj-$(CONFIG_TOUCHSCREEN_FT6236) += ft6236.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 5af7907d0af4..e5d185fe69b9 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -4,6 +4,7 @@ * Copyright (C) 2010 Samsung Electronics Co.Ltd * Copyright (C) 2011-2014 Atmel Corporation * Copyright (C) 2012 Google, Inc. + * Copyright (C) 2016 Zodiac Inflight Innovations * * Author: Joonyoung Shim <jy0922.shim@samsung.com> * @@ -28,6 +29,10 @@ #include <linux/of.h> #include <linux/slab.h> #include <asm/unaligned.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/videobuf2-v4l2.h> +#include <media/videobuf2-vmalloc.h> /* Firmware files */ #define MXT_FW_NAME "maxtouch.fw" @@ -99,6 +104,8 @@ struct t7_config { /* MXT_TOUCH_MULTI_T9 field */ #define MXT_T9_CTRL 0 +#define MXT_T9_XSIZE 3 +#define MXT_T9_YSIZE 4 #define MXT_T9_ORIENT 9 #define MXT_T9_RANGE 18 @@ -119,11 +126,31 @@ struct t9_range { /* MXT_TOUCH_MULTI_T9 orient */ #define MXT_T9_ORIENT_SWITCH (1 << 0) +#define MXT_T9_ORIENT_INVERTX (1 << 1) +#define MXT_T9_ORIENT_INVERTY (1 << 2) /* MXT_SPT_COMMSCONFIG_T18 */ #define MXT_COMMS_CTRL 0 #define MXT_COMMS_CMD 1 +/* MXT_DEBUG_DIAGNOSTIC_T37 */ +#define MXT_DIAGNOSTIC_PAGEUP 0x01 +#define MXT_DIAGNOSTIC_DELTAS 0x10 +#define MXT_DIAGNOSTIC_REFS 0x11 +#define MXT_DIAGNOSTIC_SIZE 128 + +#define MXT_FAMILY_1386 160 +#define MXT1386_COLUMNS 3 +#define MXT1386_PAGES_PER_COLUMN 8 + +struct t37_debug { +#ifdef CONFIG_TOUCHSCREEN_ATMEL_MXT_T37 + u8 mode; + u8 page; + u8 data[MXT_DIAGNOSTIC_SIZE]; +#endif +}; + /* Define for MXT_GEN_COMMAND_T6 */ #define MXT_BOOT_VALUE 0xa5 #define MXT_RESET_VALUE 0x01 @@ -133,10 +160,14 @@ struct t9_range { #define MXT_T100_CTRL 0 #define MXT_T100_CFG1 1 #define MXT_T100_TCHAUX 3 +#define MXT_T100_XSIZE 9 #define MXT_T100_XRANGE 13 +#define MXT_T100_YSIZE 20 #define MXT_T100_YRANGE 24 #define MXT_T100_CFG_SWITCHXY BIT(5) +#define MXT_T100_CFG_INVERTY BIT(6) +#define MXT_T100_CFG_INVERTX BIT(7) #define MXT_T100_TCHAUX_VECT BIT(0) #define MXT_T100_TCHAUX_AMPL BIT(1) @@ -205,6 +236,37 @@ struct mxt_object { u8 num_report_ids; } __packed; +struct mxt_dbg { + u16 t37_address; + u16 diag_cmd_address; + struct t37_debug *t37_buf; + unsigned int t37_pages; + unsigned int t37_nodes; + + struct v4l2_device v4l2; + struct v4l2_pix_format format; + struct video_device vdev; + struct vb2_queue queue; + struct mutex lock; + int input; +}; + +enum v4l_dbg_inputs { + MXT_V4L_INPUT_DELTAS, + MXT_V4L_INPUT_REFS, + MXT_V4L_INPUT_MAX, +}; + +static const struct v4l2_file_operations mxt_video_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .unlocked_ioctl = video_ioctl2, + .read = vb2_fop_read, + .mmap = vb2_fop_mmap, + .poll = vb2_fop_poll, +}; + /* Each client has this additional data */ struct mxt_data { struct i2c_client *client; @@ -216,7 +278,11 @@ struct mxt_data { unsigned int irq; unsigned int max_x; unsigned int max_y; + bool invertx; + bool inverty; bool xy_switch; + u8 xsize; + u8 ysize; bool in_bootloader; u16 mem_size; u8 t100_aux_ampl; @@ -233,6 +299,7 @@ struct mxt_data { u8 num_touchids; u8 multitouch; struct t7_config t7_cfg; + struct mxt_dbg dbg; /* Cached parameters from object table */ u16 T5_address; @@ -257,6 +324,11 @@ struct mxt_data { struct completion crc_completion; }; +struct mxt_vb2_buffer { + struct vb2_buffer vb; + struct list_head list; +}; + static size_t mxt_obj_size(const struct mxt_object *obj) { return obj->size_minus_one + 1; @@ -1503,6 +1575,11 @@ static void mxt_free_input_device(struct mxt_data *data) static void mxt_free_object_table(struct mxt_data *data) { +#ifdef CONFIG_TOUCHSCREEN_ATMEL_MXT_T37 + video_unregister_device(&data->dbg.vdev); + v4l2_device_unregister(&data->dbg.v4l2); +#endif + kfree(data->object_table); data->object_table = NULL; kfree(data->msg_buf); @@ -1661,6 +1738,18 @@ static int mxt_read_t9_resolution(struct mxt_data *data) return -EINVAL; error = __mxt_read_reg(client, + object->start_address + MXT_T9_XSIZE, + sizeof(data->xsize), &data->xsize); + if (error) + return error; + + error = __mxt_read_reg(client, + object->start_address + MXT_T9_YSIZE, + sizeof(data->ysize), &data->ysize); + if (error) + return error; + + error = __mxt_read_reg(client, object->start_address + MXT_T9_RANGE, sizeof(range), &range); if (error) @@ -1676,6 +1765,8 @@ static int mxt_read_t9_resolution(struct mxt_data *data) return error; data->xy_switch = orient & MXT_T9_ORIENT_SWITCH; + data->invertx = orient & MXT_T9_ORIENT_INVERTX; + data->inverty = orient & MXT_T9_ORIENT_INVERTY; return 0; } @@ -1710,6 +1801,18 @@ static int mxt_read_t100_config(struct mxt_data *data) data->max_y = get_unaligned_le16(&range_y); + error = __mxt_read_reg(client, + object->start_address + MXT_T100_XSIZE, + sizeof(data->xsize), &data->xsize); + if (error) + return error; + + error = __mxt_read_reg(client, + object->start_address + MXT_T100_YSIZE, + sizeof(data->ysize), &data->ysize); + if (error) + return error; + /* read orientation config */ error = __mxt_read_reg(client, object->start_address + MXT_T100_CFG1, @@ -1718,6 +1821,8 @@ static int mxt_read_t100_config(struct mxt_data *data) return error; data->xy_switch = cfg & MXT_T100_CFG_SWITCHXY; + data->invertx = cfg & MXT_T100_CFG_INVERTX; + data->inverty = cfg & MXT_T100_CFG_INVERTY; /* allocate aux bytes */ error = __mxt_read_reg(client, @@ -2043,6 +2148,420 @@ recheck: return 0; } +#ifdef CONFIG_TOUCHSCREEN_ATMEL_MXT_T37 +static u16 mxt_get_debug_value(struct mxt_data *data, unsigned int x, + unsigned int y) +{ + struct mxt_info *info = &data->info; + struct mxt_dbg *dbg = &data->dbg; + unsigned int ofs, page; + unsigned int col = 0; + unsigned int col_width; + + if (info->family_id == MXT_FAMILY_1386) { + col_width = info->matrix_ysize / MXT1386_COLUMNS; + col = y / col_width; + y = y % col_width; + } else { + col_width = info->matrix_ysize; + } + + ofs = (y + (x * col_width)) * sizeof(u16); + page = ofs / MXT_DIAGNOSTIC_SIZE; + ofs %= MXT_DIAGNOSTIC_SIZE; + + if (info->family_id == MXT_FAMILY_1386) + page += col * MXT1386_PAGES_PER_COLUMN; + + return get_unaligned_le16(&dbg->t37_buf[page].data[ofs]); +} + +static int mxt_convert_debug_pages(struct mxt_data *data, u16 *outbuf) +{ + struct mxt_dbg *dbg = &data->dbg; + unsigned int x = 0; + unsigned int y = 0; + unsigned int i, rx, ry; + + for (i = 0; i < dbg->t37_nodes; i++) { + /* Handle orientation */ + rx = data->xy_switch ? y : x; + ry = data->xy_switch ? x : y; + rx = data->invertx ? (data->xsize - 1 - rx) : rx; + ry = data->inverty ? (data->ysize - 1 - ry) : ry; + + outbuf[i] = mxt_get_debug_value(data, rx, ry); + + /* Next value */ + if (++x >= (data->xy_switch ? data->ysize : data->xsize)) { + x = 0; + y++; + } + } + + return 0; +} + +static int mxt_read_diagnostic_debug(struct mxt_data *data, u8 mode, + u16 *outbuf) +{ + struct mxt_dbg *dbg = &data->dbg; + int retries = 0; + int page; + int ret; + u8 cmd = mode; + struct t37_debug *p; + u8 cmd_poll; + + for (page = 0; page < dbg->t37_pages; page++) { + p = dbg->t37_buf + page; + + ret = mxt_write_reg(data->client, dbg->diag_cmd_address, + cmd); + if (ret) + return ret; + + retries = 0; + msleep(20); +wait_cmd: + /* Read back command byte */ + ret = __mxt_read_reg(data->client, dbg->diag_cmd_address, + sizeof(cmd_poll), &cmd_poll); + if (ret) + return ret; + + /* Field is cleared once the command has been processed */ + if (cmd_poll) { + if (retries++ > 100) + return -EINVAL; + + msleep(20); + goto wait_cmd; + } + + /* Read T37 page */ + ret = __mxt_read_reg(data->client, dbg->t37_address, + sizeof(struct t37_debug), p); + if (ret) + return ret; + + if (p->mode != mode || p->page != page) { + dev_err(&data->client->dev, "T37 page mismatch\n"); + return -EINVAL; + } + + dev_dbg(&data->client->dev, "%s page:%d retries:%d\n", + __func__, page, retries); + + /* For remaining pages, write PAGEUP rather than mode */ + cmd = MXT_DIAGNOSTIC_PAGEUP; + } + + return mxt_convert_debug_pages(data, outbuf); +} + +static int mxt_queue_setup(struct vb2_queue *q, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], struct device *alloc_devs[]) +{ + struct mxt_data *data = q->drv_priv; + size_t size = data->dbg.t37_nodes * sizeof(u16); + + if (*nplanes) + return sizes[0] < size ? -EINVAL : 0; + + *nplanes = 1; + sizes[0] = size; + + return 0; +} + +static void mxt_buffer_queue(struct vb2_buffer *vb) +{ + struct mxt_data *data = vb2_get_drv_priv(vb->vb2_queue); + u16 *ptr; + int ret; + u8 mode; + + ptr = vb2_plane_vaddr(vb, 0); + if (!ptr) { + dev_err(&data->client->dev, "Error acquiring frame ptr\n"); + goto fault; + } + + switch (data->dbg.input) { + case MXT_V4L_INPUT_DELTAS: + default: + mode = MXT_DIAGNOSTIC_DELTAS; + break; + + case MXT_V4L_INPUT_REFS: + mode = MXT_DIAGNOSTIC_REFS; + break; + } + + ret = mxt_read_diagnostic_debug(data, mode, ptr); + if (ret) + goto fault; + + vb2_set_plane_payload(vb, 0, data->dbg.t37_nodes * sizeof(u16)); + vb2_buffer_done(vb, VB2_BUF_STATE_DONE); + return; + +fault: + vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); +} + +/* V4L2 structures */ +static const struct vb2_ops mxt_queue_ops = { + .queue_setup = mxt_queue_setup, + .buf_queue = mxt_buffer_queue, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static const struct vb2_queue mxt_queue = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ, + .buf_struct_size = sizeof(struct mxt_vb2_buffer), + .ops = &mxt_queue_ops, + .mem_ops = &vb2_vmalloc_memops, + .timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, + .min_buffers_needed = 1, +}; + +static int mxt_vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct mxt_data *data = video_drvdata(file); + + strlcpy(cap->driver, "atmel_mxt_ts", sizeof(cap->driver)); + strlcpy(cap->card, "atmel_mxt_ts touch", sizeof(cap->card)); + snprintf(cap->bus_info, sizeof(cap->bus_info), + "I2C:%s", dev_name(&data->client->dev)); + return 0; +} + +static int mxt_vidioc_enum_input(struct file *file, void *priv, + struct v4l2_input *i) +{ + if (i->index >= MXT_V4L_INPUT_MAX) + return -EINVAL; + + i->type = V4L2_INPUT_TYPE_TOUCH; + + switch (i->index) { + case MXT_V4L_INPUT_REFS: + strlcpy(i->name, "Mutual Capacitance References", + sizeof(i->name)); + break; + case MXT_V4L_INPUT_DELTAS: + strlcpy(i->name, "Mutual Capacitance Deltas", sizeof(i->name)); + break; + } + + return 0; +} + +static int mxt_set_input(struct mxt_data *data, unsigned int i) +{ + struct v4l2_pix_format *f = &data->dbg.format; + + if (i >= MXT_V4L_INPUT_MAX) + return -EINVAL; + + if (i == MXT_V4L_INPUT_DELTAS) + f->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + else + f->pixelformat = V4L2_TCH_FMT_TU16; + + f->width = data->xy_switch ? data->ysize : data->xsize; + f->height = data->xy_switch ? data->xsize : data->ysize; + f->field = V4L2_FIELD_NONE; + f->colorspace = V4L2_COLORSPACE_RAW; + f->bytesperline = f->width * sizeof(u16); + f->sizeimage = f->width * f->height * sizeof(u16); + + data->dbg.input = i; + + return 0; +} + +static int mxt_vidioc_s_input(struct file *file, void *priv, unsigned int i) +{ + return mxt_set_input(video_drvdata(file), i); +} + +static int mxt_vidioc_g_input(struct file *file, void *priv, unsigned int *i) +{ + struct mxt_data *data = video_drvdata(file); + + *i = data->dbg.input; + + return 0; +} + +static int mxt_vidioc_fmt(struct file *file, void *priv, struct v4l2_format *f) +{ + struct mxt_data *data = video_drvdata(file); + + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + f->fmt.pix = data->dbg.format; + + return 0; +} + +static int mxt_vidioc_enum_fmt(struct file *file, void *priv, + struct v4l2_fmtdesc *fmt) +{ + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + switch (fmt->index) { + case 0: + fmt->pixelformat = V4L2_TCH_FMT_TU16; + break; + + case 1: + fmt->pixelformat = V4L2_TCH_FMT_DELTA_TD16; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int mxt_vidioc_g_parm(struct file *file, void *fh, + struct v4l2_streamparm *a) +{ + if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + a->parm.capture.readbuffers = 1; + a->parm.capture.timeperframe.numerator = 1; + a->parm.capture.timeperframe.denominator = 10; + return 0; +} + +static const struct v4l2_ioctl_ops mxt_video_ioctl_ops = { + .vidioc_querycap = mxt_vidioc_querycap, + + .vidioc_enum_fmt_vid_cap = mxt_vidioc_enum_fmt, + .vidioc_s_fmt_vid_cap = mxt_vidioc_fmt, + .vidioc_g_fmt_vid_cap = mxt_vidioc_fmt, + .vidioc_try_fmt_vid_cap = mxt_vidioc_fmt, + .vidioc_g_parm = mxt_vidioc_g_parm, + + .vidioc_enum_input = mxt_vidioc_enum_input, + .vidioc_g_input = mxt_vidioc_g_input, + .vidioc_s_input = mxt_vidioc_s_input, + + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, +}; + +static const struct video_device mxt_video_device = { + .name = "Atmel maxTouch", + .fops = &mxt_video_fops, + .ioctl_ops = &mxt_video_ioctl_ops, + .release = video_device_release_empty, + .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TOUCH | + V4L2_CAP_READWRITE | V4L2_CAP_STREAMING, +}; + +static void mxt_debug_init(struct mxt_data *data) +{ + struct mxt_info *info = &data->info; + struct mxt_dbg *dbg = &data->dbg; + struct mxt_object *object; + int error; + + object = mxt_get_object(data, MXT_GEN_COMMAND_T6); + if (!object) + goto error; + + dbg->diag_cmd_address = object->start_address + MXT_COMMAND_DIAGNOSTIC; + + object = mxt_get_object(data, MXT_DEBUG_DIAGNOSTIC_T37); + if (!object) + goto error; + + if (mxt_obj_size(object) != sizeof(struct t37_debug)) { + dev_warn(&data->client->dev, "Bad T37 size"); + goto error; + } + + dbg->t37_address = object->start_address; + + /* Calculate size of data and allocate buffer */ + dbg->t37_nodes = data->xsize * data->ysize; + + if (info->family_id == MXT_FAMILY_1386) + dbg->t37_pages = MXT1386_COLUMNS * MXT1386_PAGES_PER_COLUMN; + else + dbg->t37_pages = DIV_ROUND_UP(data->xsize * + data->info.matrix_ysize * + sizeof(u16), + sizeof(dbg->t37_buf->data)); + + dbg->t37_buf = devm_kmalloc_array(&data->client->dev, dbg->t37_pages, + sizeof(struct t37_debug), GFP_KERNEL); + if (!dbg->t37_buf) + goto error; + + /* init channel to zero */ + mxt_set_input(data, 0); + + /* register video device */ + snprintf(dbg->v4l2.name, sizeof(dbg->v4l2.name), "%s", "atmel_mxt_ts"); + error = v4l2_device_register(&data->client->dev, &dbg->v4l2); + if (error) + goto error; + + /* initialize the queue */ + mutex_init(&dbg->lock); + dbg->queue = mxt_queue; + dbg->queue.drv_priv = data; + dbg->queue.lock = &dbg->lock; + dbg->queue.dev = &data->client->dev; + + error = vb2_queue_init(&dbg->queue); + if (error) + goto error_unreg_v4l2; + + dbg->vdev = mxt_video_device; + dbg->vdev.v4l2_dev = &dbg->v4l2; + dbg->vdev.lock = &dbg->lock; + dbg->vdev.vfl_dir = VFL_DIR_RX; + dbg->vdev.queue = &dbg->queue; + video_set_drvdata(&dbg->vdev, data); + + error = video_register_device(&dbg->vdev, VFL_TYPE_TOUCH, -1); + if (error) + goto error_unreg_v4l2; + + return; + +error_unreg_v4l2: + v4l2_device_unregister(&dbg->v4l2); +error: + dev_warn(&data->client->dev, "Error initializing T37\n"); +} +#else +static void mxt_debug_init(struct mxt_data *data) +{ +} +#endif + static int mxt_configure_objects(struct mxt_data *data, const struct firmware *cfg) { @@ -2070,6 +2589,8 @@ static int mxt_configure_objects(struct mxt_data *data, dev_warn(dev, "No touch object detected\n"); } + mxt_debug_init(data); + dev_info(dev, "Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n", info->family_id, info->variant_id, info->version >> 4, diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 703e295a37ed..28466e358fee 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -1063,9 +1063,15 @@ static const struct edt_i2c_chip_data edt_ft5506_data = { .max_support_points = 10, }; +static const struct edt_i2c_chip_data edt_ft6236_data = { + .max_support_points = 2, +}; + static const struct i2c_device_id edt_ft5x06_ts_id[] = { { .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data }, { .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data }, + /* Note no edt- prefix for compatibility with the ft6236.c driver */ + { .name = "ft6236", .driver_data = (long)&edt_ft6236_data }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id); @@ -1076,6 +1082,8 @@ static const struct of_device_id edt_ft5x06_of_match[] = { { .compatible = "edt,edt-ft5306", .data = &edt_ft5x06_data }, { .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data }, { .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data }, + /* Note focaltech vendor prefix for compatibility with ft6236.c */ + { .compatible = "focaltech,ft6236", .data = &edt_ft6236_data }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match); diff --git a/drivers/input/touchscreen/ektf2127.c b/drivers/input/touchscreen/ektf2127.c new file mode 100644 index 000000000000..0ed34ff787ce --- /dev/null +++ b/drivers/input/touchscreen/ektf2127.c @@ -0,0 +1,336 @@ +/* + * Driver for ELAN eKTF2127 i2c touchscreen controller + * + * For this driver the layout of the Chipone icn8318 i2c + * touchscreencontroller is used. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Author: + * Michel Verlaan <michel.verl@gmail.com> + * Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com> + * + * Original chipone_icn8318 driver: + * Hans de Goede <hdegoede@redhat.com> + */ + +#include <linux/gpio/consumer.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/input/mt.h> +#include <linux/input/touchscreen.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/delay.h> + +/* Packet header defines (first byte of data send / received) */ +#define EKTF2127_NOISE 0x40 +#define EKTF2127_RESPONSE 0x52 +#define EKTF2127_REQUEST 0x53 +#define EKTF2127_HELLO 0x55 +#define EKTF2127_REPORT 0x5d +#define EKTF2127_CALIB_DONE 0x66 + +/* Register defines (second byte of data send / received) */ +#define EKTF2127_ENV_NOISY 0x41 +#define EKTF2127_HEIGHT 0x60 +#define EKTF2127_WIDTH 0x63 + +/* 2 bytes header + 5 * 3 bytes coordinates + 3 bytes pressure info + footer */ +#define EKTF2127_TOUCH_REPORT_SIZE 21 +#define EKTF2127_MAX_TOUCHES 5 + +struct ektf2127_ts { + struct i2c_client *client; + struct input_dev *input; + struct gpio_desc *power_gpios; + struct touchscreen_properties prop; +}; + +static void ektf2127_parse_coordinates(const u8* buf, unsigned int touch_count, + struct input_mt_pos *touches) +{ + int index = 0; + int i; + + for (i = 0; i < touch_count; i++) { + index = 2 + i * 3; + + touches[i].x = (buf[index] & 0x0f); + touches[i].x <<= 8; + touches[i].x |= buf[index + 2]; + + touches[i].y = (buf[index] & 0xf0); + touches[i].y <<= 4; + touches[i].y |= buf[index + 1]; + } +} + +static void ektf2127_report_event(struct ektf2127_ts *ts, const u8 *buf) +{ + struct input_mt_pos touches[EKTF2127_MAX_TOUCHES]; + int slots[EKTF2127_MAX_TOUCHES]; + unsigned int touch_count, i; + + touch_count = buf[1] & 0x07; + if (touch_count > EKTF2127_MAX_TOUCHES) { + dev_err(&ts->client->dev, + "Too many touches %d > %d\n", + touch_count, EKTF2127_MAX_TOUCHES); + touch_count = EKTF2127_MAX_TOUCHES; + } + + ektf2127_parse_coordinates(buf, touch_count, touches); + input_mt_assign_slots(ts->input, slots, touches, + touch_count, 0); + + for (i = 0; i < touch_count; i++) { + input_mt_slot(ts->input, slots[i]); + input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, true); + touchscreen_report_pos(ts->input, &ts->prop, + touches[i].x, touches[i].y, true); + } + + input_mt_sync_frame(ts->input); + input_sync(ts->input); +} + +static irqreturn_t ektf2127_irq(int irq, void *dev_id) +{ + struct ektf2127_ts *ts = dev_id; + struct device *dev = &ts->client->dev; + char buf[EKTF2127_TOUCH_REPORT_SIZE]; + int ret; + + ret = i2c_master_recv(ts->client, buf, EKTF2127_TOUCH_REPORT_SIZE); + if (ret != EKTF2127_TOUCH_REPORT_SIZE) { + dev_err(dev, "Error reading touch data: %d\n", ret); + goto out; + } + + switch (buf[0]) { + case EKTF2127_REPORT: + ektf2127_report_event(ts, buf); + break; + + case EKTF2127_NOISE: + if (buf[1] == EKTF2127_ENV_NOISY) + dev_dbg(dev, "Environment is electrically noisy\n"); + break; + + case EKTF2127_HELLO: + case EKTF2127_CALIB_DONE: + break; + + default: + dev_err(dev, "Unexpected packet header byte %#02x\n", buf[0]); + break; + } + +out: + return IRQ_HANDLED; +} + +static int ektf2127_start(struct input_dev *dev) +{ + struct ektf2127_ts *ts = input_get_drvdata(dev); + + enable_irq(ts->client->irq); + gpiod_set_value_cansleep(ts->power_gpios, 1); + + return 0; +} + +static void ektf2127_stop(struct input_dev *dev) +{ + struct ektf2127_ts *ts = input_get_drvdata(dev); + + disable_irq(ts->client->irq); + gpiod_set_value_cansleep(ts->power_gpios, 0); +} + +static int __maybe_unused ektf2127_suspend(struct device *dev) +{ + struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); + + mutex_lock(&ts->input->mutex); + if (ts->input->users) + ektf2127_stop(ts->input); + mutex_unlock(&ts->input->mutex); + + return 0; +} + +static int __maybe_unused ektf2127_resume(struct device *dev) +{ + struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); + + mutex_lock(&ts->input->mutex); + if (ts->input->users) + ektf2127_start(ts->input); + mutex_unlock(&ts->input->mutex); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(ektf2127_pm_ops, ektf2127_suspend, + ektf2127_resume); + +static int ektf2127_query_dimension(struct i2c_client *client, bool width) +{ + struct device *dev = &client->dev; + const char *what = width ? "width" : "height"; + u8 what_code = width ? EKTF2127_WIDTH : EKTF2127_HEIGHT; + u8 buf[4]; + int ret; + int error; + + /* Request dimension */ + buf[0] = EKTF2127_REQUEST; + buf[1] = width ? EKTF2127_WIDTH : EKTF2127_HEIGHT; + buf[2] = 0x00; + buf[3] = 0x00; + ret = i2c_master_send(client, buf, sizeof(buf)); + if (ret != sizeof(buf)) { + error = ret < 0 ? ret : -EIO; + dev_err(dev, "Failed to request %s: %d\n", what, error); + return error; + } + + msleep(20); + + /* Read response */ + ret = i2c_master_recv(client, buf, sizeof(buf)); + if (ret != sizeof(buf)) { + error = ret < 0 ? ret : -EIO; + dev_err(dev, "Failed to receive %s data: %d\n", what, error); + return error; + } + + if (buf[0] != EKTF2127_RESPONSE || buf[1] != what_code) { + dev_err(dev, "Unexpected %s data: %#02x %#02x\n", + what, buf[0], buf[1]); + return -EIO; + } + + return (((buf[3] & 0xf0) << 4) | buf[2]) - 1; +} + +static int ektf2127_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct ektf2127_ts *ts; + struct input_dev *input; + u8 buf[4]; + int max_x, max_y; + int error; + + if (!client->irq) { + dev_err(dev, "Error no irq specified\n"); + return -EINVAL; + } + + ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL); + if (!ts) + return -ENOMEM; + + /* This requests the gpio *and* turns on the touchscreen controller */ + ts->power_gpios = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH); + if (IS_ERR(ts->power_gpios)) { + error = PTR_ERR(ts->power_gpios); + if (error != -EPROBE_DEFER) + dev_err(dev, "Error getting power gpio: %d\n", error); + return error; + } + + input = devm_input_allocate_device(dev); + if (!input) + return -ENOMEM; + + input->name = client->name; + input->id.bustype = BUS_I2C; + input->open = ektf2127_start; + input->close = ektf2127_stop; + + ts->client = client; + + /* Read hello (ignore result, depends on initial power state) */ + msleep(20); + i2c_master_recv(ts->client, buf, sizeof(buf)); + + /* Read resolution from chip */ + max_x = ektf2127_query_dimension(client, true); + if (max_x < 0) + return max_x; + + max_y = ektf2127_query_dimension(client, false); + if (max_y < 0) + return max_y; + + input_set_abs_params(input, ABS_MT_POSITION_X, 0, max_x, 0, 0); + input_set_abs_params(input, ABS_MT_POSITION_Y, 0, max_y, 0, 0); + touchscreen_parse_properties(input, true, &ts->prop); + + error = input_mt_init_slots(input, EKTF2127_MAX_TOUCHES, + INPUT_MT_DIRECT | + INPUT_MT_DROP_UNUSED | + INPUT_MT_TRACK); + if (error) + return error; + + ts->input = input; + input_set_drvdata(input, ts); + + error = devm_request_threaded_irq(dev, client->irq, + NULL, ektf2127_irq, + IRQF_ONESHOT, client->name, ts); + if (error) { + dev_err(dev, "Error requesting irq: %d\n", error); + return error; + } + + /* Stop device till opened */ + ektf2127_stop(ts->input); + + error = input_register_device(input); + if (error) + return error; + + i2c_set_clientdata(client, ts); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id ektf2127_of_match[] = { + { .compatible = "elan,ektf2127" }, + {} +}; +MODULE_DEVICE_TABLE(of, ektf2127_of_match); +#endif + +static const struct i2c_device_id ektf2127_i2c_id[] = { + { "ektf2127", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, ektf2127_i2c_id); + +static struct i2c_driver ektf2127_driver = { + .driver = { + .name = "elan_ektf2127", + .pm = &ektf2127_pm_ops, + .of_match_table = of_match_ptr(ektf2127_of_match), + }, + .probe = ektf2127_probe, + .id_table = ektf2127_i2c_id, +}; +module_i2c_driver(ektf2127_driver); + +MODULE_DESCRIPTION("ELAN eKTF2127 I2C Touchscreen Driver"); +MODULE_AUTHOR("Michel Verlaan, Siebren Vroegindeweij"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index ac09855fa435..02aec284deca 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -298,7 +298,7 @@ static u16 elants_i2c_parse_version(u8 *buf) return get_unaligned_be32(buf) >> 4; } -static int elants_i2c_query_fw_id(struct elants_data *ts) +static int elants_i2c_query_hw_version(struct elants_data *ts) { struct i2c_client *client = ts->client; int error, retry_cnt; @@ -318,8 +318,13 @@ static int elants_i2c_query_fw_id(struct elants_data *ts) error, (int)sizeof(resp), resp); } - dev_err(&client->dev, - "Failed to read fw id or fw id is invalid\n"); + if (error) { + dev_err(&client->dev, + "Failed to read fw id: %d\n", error); + return error; + } + + dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version); return -EINVAL; } @@ -508,7 +513,7 @@ static int elants_i2c_fastboot(struct i2c_client *client) static int elants_i2c_initialize(struct elants_data *ts) { struct i2c_client *client = ts->client; - int error, retry_cnt; + int error, error2, retry_cnt; const u8 hello_packet[] = { 0x55, 0x55, 0x55, 0x55 }; const u8 recov_packet[] = { 0x55, 0x55, 0x80, 0x80 }; u8 buf[HEADER_SIZE]; @@ -553,18 +558,22 @@ static int elants_i2c_initialize(struct elants_data *ts) } } + /* hw version is available even if device in recovery state */ + error2 = elants_i2c_query_hw_version(ts); if (!error) - error = elants_i2c_query_fw_id(ts); + error = error2; + if (!error) error = elants_i2c_query_fw_version(ts); + if (!error) + error = elants_i2c_query_test_version(ts); + if (!error) + error = elants_i2c_query_bc_version(ts); + if (!error) + error = elants_i2c_query_ts_info(ts); - if (error) { + if (error) ts->iap_mode = ELAN_IAP_RECOVERY; - } else { - elants_i2c_query_test_version(ts); - elants_i2c_query_bc_version(ts); - elants_i2c_query_ts_info(ts); - } return 0; } diff --git a/drivers/input/touchscreen/ft6236.c b/drivers/input/touchscreen/ft6236.c deleted file mode 100644 index d240d2e212bd..000000000000 --- a/drivers/input/touchscreen/ft6236.c +++ /dev/null @@ -1,326 +0,0 @@ -/* - * FocalTech FT6236 TouchScreen driver. - * - * Copyright (c) 2010 Focal tech Ltd. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/delay.h> -#include <linux/gpio/consumer.h> -#include <linux/i2c.h> -#include <linux/input.h> -#include <linux/input/mt.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/property.h> - -#define FT6236_MAX_TOUCH_POINTS 2 - -#define FT6236_REG_TH_GROUP 0x80 -#define FT6236_REG_PERIODACTIVE 0x88 -#define FT6236_REG_LIB_VER_H 0xa1 -#define FT6236_REG_LIB_VER_L 0xa2 -#define FT6236_REG_CIPHER 0xa3 -#define FT6236_REG_FIRMID 0xa6 -#define FT6236_REG_FOCALTECH_ID 0xa8 -#define FT6236_REG_RELEASE_CODE_ID 0xaf - -#define FT6236_EVENT_PRESS_DOWN 0 -#define FT6236_EVENT_LIFT_UP 1 -#define FT6236_EVENT_CONTACT 2 -#define FT6236_EVENT_NO_EVENT 3 - -struct ft6236_data { - struct i2c_client *client; - struct input_dev *input; - struct gpio_desc *reset_gpio; - u32 max_x; - u32 max_y; - bool invert_x; - bool invert_y; - bool swap_xy; -}; - -/* - * This struct is a touchpoint as stored in hardware. Note that the id, - * as well as the event, are stored in the upper nybble of the hi byte. - */ -struct ft6236_touchpoint { - union { - u8 xhi; - u8 event; - }; - u8 xlo; - union { - u8 yhi; - u8 id; - }; - u8 ylo; - u8 weight; - u8 misc; -} __packed; - -/* This packet represents the register map as read from offset 0 */ -struct ft6236_packet { - u8 dev_mode; - u8 gest_id; - u8 touches; - struct ft6236_touchpoint points[FT6236_MAX_TOUCH_POINTS]; -} __packed; - -static int ft6236_read(struct i2c_client *client, u8 reg, u8 len, void *data) -{ - int error; - - error = i2c_smbus_read_i2c_block_data(client, reg, len, data); - if (error < 0) - return error; - - if (error != len) - return -EIO; - - return 0; -} - -static irqreturn_t ft6236_interrupt(int irq, void *dev_id) -{ - struct ft6236_data *ft6236 = dev_id; - struct device *dev = &ft6236->client->dev; - struct input_dev *input = ft6236->input; - struct ft6236_packet buf; - u8 touches; - int i, error; - - error = ft6236_read(ft6236->client, 0, sizeof(buf), &buf); - if (error) { - dev_err(dev, "read touchdata failed %d\n", error); - return IRQ_HANDLED; - } - - touches = buf.touches & 0xf; - if (touches > FT6236_MAX_TOUCH_POINTS) { - dev_dbg(dev, - "%d touch points reported, only %d are supported\n", - touches, FT6236_MAX_TOUCH_POINTS); - touches = FT6236_MAX_TOUCH_POINTS; - } - - for (i = 0; i < touches; i++) { - struct ft6236_touchpoint *point = &buf.points[i]; - u16 x = ((point->xhi & 0xf) << 8) | buf.points[i].xlo; - u16 y = ((point->yhi & 0xf) << 8) | buf.points[i].ylo; - u8 event = point->event >> 6; - u8 id = point->id >> 4; - bool act = (event == FT6236_EVENT_PRESS_DOWN || - event == FT6236_EVENT_CONTACT); - - input_mt_slot(input, id); - input_mt_report_slot_state(input, MT_TOOL_FINGER, act); - if (!act) - continue; - - if (ft6236->invert_x) - x = ft6236->max_x - x; - - if (ft6236->invert_y) - y = ft6236->max_y - y; - - if (ft6236->swap_xy) { - input_report_abs(input, ABS_MT_POSITION_X, y); - input_report_abs(input, ABS_MT_POSITION_Y, x); - } else { - input_report_abs(input, ABS_MT_POSITION_X, x); - input_report_abs(input, ABS_MT_POSITION_Y, y); - } - } - - input_mt_sync_frame(input); - input_sync(input); - - return IRQ_HANDLED; -} - -static u8 ft6236_debug_read_byte(struct ft6236_data *ft6236, u8 reg) -{ - struct i2c_client *client = ft6236->client; - u8 val = 0; - int error; - - error = ft6236_read(client, reg, 1, &val); - if (error) - dev_dbg(&client->dev, - "error reading register 0x%02x: %d\n", reg, error); - - return val; -} - -static void ft6236_debug_info(struct ft6236_data *ft6236) -{ - struct device *dev = &ft6236->client->dev; - - dev_dbg(dev, "Touch threshold is %d\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_TH_GROUP) * 4); - dev_dbg(dev, "Report rate is %dHz\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_PERIODACTIVE) * 10); - dev_dbg(dev, "Firmware library version 0x%02x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_H), - ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_L)); - dev_dbg(dev, "Firmware version 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_FIRMID)); - dev_dbg(dev, "Chip vendor ID 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_CIPHER)); - dev_dbg(dev, "CTPM vendor ID 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_FOCALTECH_ID)); - dev_dbg(dev, "Release code version 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_RELEASE_CODE_ID)); -} - -static void ft6236_reset(struct ft6236_data *ft6236) -{ - if (!ft6236->reset_gpio) - return; - - gpiod_set_value_cansleep(ft6236->reset_gpio, 1); - usleep_range(5000, 20000); - gpiod_set_value_cansleep(ft6236->reset_gpio, 0); - msleep(300); -} - -static int ft6236_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct device *dev = &client->dev; - struct ft6236_data *ft6236; - struct input_dev *input; - u32 fuzz_x = 0, fuzz_y = 0; - u8 val; - int error; - - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) - return -ENXIO; - - if (!client->irq) { - dev_err(dev, "irq is missing\n"); - return -EINVAL; - } - - ft6236 = devm_kzalloc(dev, sizeof(*ft6236), GFP_KERNEL); - if (!ft6236) - return -ENOMEM; - - ft6236->client = client; - ft6236->reset_gpio = devm_gpiod_get_optional(dev, "reset", - GPIOD_OUT_LOW); - if (IS_ERR(ft6236->reset_gpio)) { - error = PTR_ERR(ft6236->reset_gpio); - if (error != -EPROBE_DEFER) - dev_err(dev, "error getting reset gpio: %d\n", error); - return error; - } - - ft6236_reset(ft6236); - - /* verify that the controller is present */ - error = ft6236_read(client, 0x00, 1, &val); - if (error) { - dev_err(dev, "failed to read from controller: %d\n", error); - return error; - } - - ft6236_debug_info(ft6236); - - input = devm_input_allocate_device(dev); - if (!input) - return -ENOMEM; - - ft6236->input = input; - input->name = client->name; - input->id.bustype = BUS_I2C; - - if (device_property_read_u32(dev, "touchscreen-size-x", - &ft6236->max_x) || - device_property_read_u32(dev, "touchscreen-size-y", - &ft6236->max_y)) { - dev_err(dev, "touchscreen-size-x and/or -y missing\n"); - return -EINVAL; - } - - device_property_read_u32(dev, "touchscreen-fuzz-x", &fuzz_x); - device_property_read_u32(dev, "touchscreen-fuzz-y", &fuzz_y); - ft6236->invert_x = device_property_read_bool(dev, - "touchscreen-inverted-x"); - ft6236->invert_y = device_property_read_bool(dev, - "touchscreen-inverted-y"); - ft6236->swap_xy = device_property_read_bool(dev, - "touchscreen-swapped-x-y"); - - if (ft6236->swap_xy) { - input_set_abs_params(input, ABS_MT_POSITION_X, 0, - ft6236->max_y, fuzz_y, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, 0, - ft6236->max_x, fuzz_x, 0); - } else { - input_set_abs_params(input, ABS_MT_POSITION_X, 0, - ft6236->max_x, fuzz_x, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, 0, - ft6236->max_y, fuzz_y, 0); - } - - error = input_mt_init_slots(input, FT6236_MAX_TOUCH_POINTS, - INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); - if (error) - return error; - - error = devm_request_threaded_irq(dev, client->irq, NULL, - ft6236_interrupt, IRQF_ONESHOT, - client->name, ft6236); - if (error) { - dev_err(dev, "request irq %d failed: %d\n", client->irq, error); - return error; - } - - error = input_register_device(input); - if (error) { - dev_err(dev, "failed to register input device: %d\n", error); - return error; - } - - return 0; -} - -#ifdef CONFIG_OF -static const struct of_device_id ft6236_of_match[] = { - { .compatible = "focaltech,ft6236", }, - { } -}; -MODULE_DEVICE_TABLE(of, ft6236_of_match); -#endif - -static const struct i2c_device_id ft6236_id[] = { - { "ft6236", }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ft6236_id); - -static struct i2c_driver ft6236_driver = { - .driver = { - .name = "ft6236", - .of_match_table = of_match_ptr(ft6236_of_match), - }, - .probe = ft6236_probe, - .id_table = ft6236_id, -}; -module_i2c_driver(ft6236_driver); - -MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>"); -MODULE_AUTHOR("Noralf Trønnes <noralf@tronnes.org>"); -MODULE_DESCRIPTION("FocalTech FT6236 TouchScreen driver"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c index ea3b6a5b83e6..729b3c89324c 100644 --- a/drivers/input/touchscreen/jornada720_ts.c +++ b/drivers/input/touchscreen/jornada720_ts.c @@ -13,6 +13,7 @@ * HP Jornada 710/720/729 Touchscreen Driver */ +#include <linux/gpio/consumer.h> #include <linux/platform_device.h> #include <linux/input.h> #include <linux/interrupt.h> @@ -20,9 +21,7 @@ #include <linux/slab.h> #include <linux/io.h> -#include <mach/hardware.h> #include <mach/jornada720.h> -#include <mach/irqs.h> MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>"); MODULE_DESCRIPTION("HP Jornada 710/720/728 touchscreen driver"); @@ -30,6 +29,7 @@ MODULE_LICENSE("GPL v2"); struct jornada_ts { struct input_dev *dev; + struct gpio_desc *gpio; int x_data[4]; /* X sample values */ int y_data[4]; /* Y sample values */ }; @@ -71,8 +71,8 @@ static irqreturn_t jornada720_ts_interrupt(int irq, void *dev_id) struct input_dev *input = jornada_ts->dev; int x, y; - /* If GPIO_GPIO9 is set to high then report pen up */ - if (GPLR & GPIO_GPIO(9)) { + /* If gpio is high then report pen up */ + if (gpiod_get_value(jornada_ts->gpio)) { input_report_key(input, BTN_TOUCH, 0); input_sync(input); } else { @@ -101,7 +101,7 @@ static int jornada720_ts_probe(struct platform_device *pdev) { struct jornada_ts *jornada_ts; struct input_dev *input_dev; - int error; + int error, irq; jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL); if (!jornada_ts) @@ -113,6 +113,14 @@ static int jornada720_ts_probe(struct platform_device *pdev) platform_set_drvdata(pdev, jornada_ts); + jornada_ts->gpio = devm_gpiod_get(&pdev->dev, "penup", GPIOD_IN); + if (IS_ERR(jornada_ts->gpio)) + return PTR_ERR(jornada_ts->gpio); + + irq = gpiod_to_irq(jornada_ts->gpio); + if (irq <= 0) + return irq < 0 ? irq : -EINVAL; + jornada_ts->dev = input_dev; input_dev->name = "HP Jornada 7xx Touchscreen"; @@ -125,8 +133,7 @@ static int jornada720_ts_probe(struct platform_device *pdev) input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0); input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0); - error = devm_request_irq(&pdev->dev, IRQ_GPIO9, - jornada720_ts_interrupt, + error = devm_request_irq(&pdev->dev, irq, jornada720_ts_interrupt, IRQF_TRIGGER_RISING, "HP7XX Touchscreen driver", pdev); if (error) { diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c index 913e25a994b4..ef64f36c5ffc 100644 --- a/drivers/input/touchscreen/mc13783_ts.c +++ b/drivers/input/touchscreen/mc13783_ts.c @@ -37,7 +37,6 @@ struct mc13783_ts_priv { struct input_dev *idev; struct mc13xxx *mc13xxx; struct delayed_work work; - struct workqueue_struct *workq; unsigned int sample[4]; struct mc13xxx_ts_platform_data *touch; }; @@ -54,7 +53,7 @@ static irqreturn_t mc13783_ts_handler(int irq, void *data) * be rescheduled for immediate execution here. However the rearm * delay is HZ / 50 which is acceptable. */ - queue_delayed_work(priv->workq, &priv->work, 0); + schedule_delayed_work(&priv->work, 0); return IRQ_HANDLED; } @@ -106,16 +105,18 @@ static void mc13783_ts_report_sample(struct mc13783_ts_priv *priv) dev_dbg(&idev->dev, "report (%d, %d, %d)\n", x1, y1, 0x1000 - cr0); - queue_delayed_work(priv->workq, &priv->work, HZ / 50); - } else + schedule_delayed_work(&priv->work, HZ / 50); + } else { dev_dbg(&idev->dev, "report release\n"); + } input_report_abs(idev, ABS_PRESSURE, cr0 ? 0x1000 - cr0 : cr0); input_report_key(idev, BTN_TOUCH, cr0); input_sync(idev); - } else + } else { dev_dbg(&idev->dev, "discard event\n"); + } } static void mc13783_ts_work(struct work_struct *work) @@ -189,14 +190,6 @@ static int __init mc13783_ts_probe(struct platform_device *pdev) goto err_free_mem; } - /* - * We need separate workqueue because mc13783_adc_do_conversion - * uses keventd and thus would deadlock. - */ - priv->workq = create_singlethread_workqueue("mc13783_ts"); - if (!priv->workq) - goto err_free_mem; - idev->name = MC13783_TS_NAME; idev->dev.parent = &pdev->dev; @@ -215,14 +208,12 @@ static int __init mc13783_ts_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "register input device failed with %d\n", ret); - goto err_destroy_wq; + goto err_free_mem; } platform_set_drvdata(pdev, priv); return 0; -err_destroy_wq: - destroy_workqueue(priv->workq); err_free_mem: input_free_device(idev); kfree(priv); @@ -233,7 +224,6 @@ static int mc13783_ts_remove(struct platform_device *pdev) { struct mc13783_ts_priv *priv = platform_get_drvdata(pdev); - destroy_workqueue(priv->workq); input_unregister_device(priv->idev); kfree(priv); diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c index fb5fb9140ca9..552a3773f79d 100644 --- a/drivers/input/touchscreen/melfas_mip4.c +++ b/drivers/input/touchscreen/melfas_mip4.c @@ -157,6 +157,7 @@ struct mip4_ts { char phys[32]; char product_name[16]; + char ic_name[4]; unsigned int max_x; unsigned int max_y; @@ -263,6 +264,18 @@ static int mip4_query_device(struct mip4_ts *ts) dev_dbg(&ts->client->dev, "product name: %.*s\n", (int)sizeof(ts->product_name), ts->product_name); + /* IC name */ + cmd[0] = MIP4_R0_INFO; + cmd[1] = MIP4_R1_INFO_IC_NAME; + error = mip4_i2c_xfer(ts, cmd, sizeof(cmd), + ts->ic_name, sizeof(ts->ic_name)); + if (error) + dev_warn(&ts->client->dev, + "Failed to retrieve IC name: %d\n", error); + else + dev_dbg(&ts->client->dev, "IC name: %.*s\n", + (int)sizeof(ts->ic_name), ts->ic_name); + /* Firmware version */ error = mip4_get_fw_version(ts); if (error) @@ -1326,7 +1339,7 @@ static ssize_t mip4_sysfs_read_hw_version(struct device *dev, * paired with current firmware in the chip. */ count = snprintf(buf, PAGE_SIZE, "%.*s\n", - (int)sizeof(ts->product_name), ts->product_name); + (int)sizeof(ts->product_name), ts->product_name); mutex_unlock(&ts->input->mutex); @@ -1335,9 +1348,30 @@ static ssize_t mip4_sysfs_read_hw_version(struct device *dev, static DEVICE_ATTR(hw_version, S_IRUGO, mip4_sysfs_read_hw_version, NULL); +static ssize_t mip4_sysfs_read_ic_name(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct mip4_ts *ts = i2c_get_clientdata(client); + size_t count; + + mutex_lock(&ts->input->mutex); + + count = snprintf(buf, PAGE_SIZE, "%.*s\n", + (int)sizeof(ts->ic_name), ts->ic_name); + + mutex_unlock(&ts->input->mutex); + + return count; +} + +static DEVICE_ATTR(ic_name, S_IRUGO, mip4_sysfs_read_ic_name, NULL); + static struct attribute *mip4_attrs[] = { &dev_attr_fw_version.attr, &dev_attr_hw_version.attr, + &dev_attr_ic_name.attr, &dev_attr_update_fw.attr, NULL, }; @@ -1538,6 +1572,6 @@ static struct i2c_driver mip4_driver = { module_i2c_driver(mip4_driver); MODULE_DESCRIPTION("MELFAS MIP4 Touchscreen"); -MODULE_VERSION("2016.03.12"); +MODULE_VERSION("2016.09.28"); MODULE_AUTHOR("Sangwon Jee <jeesw@melfas.com>"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index d159e14f4d20..3bb0637d832e 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -11,10 +11,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/delay.h> @@ -404,7 +400,6 @@ static int __maybe_unused pixcir_i2c_ts_resume(struct device *dev) mutex_lock(&input->mutex); if (device_may_wakeup(&client->dev)) { - if (!input->users) { ret = pixcir_stop(ts); if (ret) { @@ -431,13 +426,7 @@ static const struct of_device_id pixcir_of_match[]; static int pixcir_parse_dt(struct device *dev, struct pixcir_i2c_ts_data *tsdata) { - const struct of_device_id *match; - - match = of_match_device(of_match_ptr(pixcir_of_match), dev); - if (!match) - return -EINVAL; - - tsdata->chip = (const struct pixcir_i2c_chip_data *)match->data; + tsdata->chip = of_device_get_match_data(dev); if (!tsdata->chip) return -EINVAL; diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c index b2744a64e933..f502c8488be8 100644 --- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -390,9 +390,10 @@ static void silead_ts_read_props(struct i2c_client *client) data->max_fingers = 5; /* Most devices handle up-to 5 fingers */ } - error = device_property_read_string(dev, "touchscreen-fw-name", &str); + error = device_property_read_string(dev, "firmware-name", &str); if (!error) - snprintf(data->fw_name, sizeof(data->fw_name), "%s", str); + snprintf(data->fw_name, sizeof(data->fw_name), + "silead/%s", str); else dev_dbg(dev, "Firmware file name read error. Using default."); } @@ -410,14 +411,14 @@ static int silead_ts_set_default_fw_name(struct silead_ts_data *data, if (!acpi_id) return -ENODEV; - snprintf(data->fw_name, sizeof(data->fw_name), "%s.fw", - acpi_id->id); + snprintf(data->fw_name, sizeof(data->fw_name), + "silead/%s.fw", acpi_id->id); for (i = 0; i < strlen(data->fw_name); i++) data->fw_name[i] = tolower(data->fw_name[i]); } else { - snprintf(data->fw_name, sizeof(data->fw_name), "%s.fw", - id->name); + snprintf(data->fw_name, sizeof(data->fw_name), + "silead/%s.fw", id->name); } return 0; @@ -426,7 +427,8 @@ static int silead_ts_set_default_fw_name(struct silead_ts_data *data, static int silead_ts_set_default_fw_name(struct silead_ts_data *data, const struct i2c_device_id *id) { - snprintf(data->fw_name, sizeof(data->fw_name), "%s.fw", id->name); + snprintf(data->fw_name, sizeof(data->fw_name), + "silead/%s.fw", id->name); return 0; } #endif diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 4ea475775d58..aefb6e11f88a 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -139,6 +139,27 @@ struct sur40_image_header { #define SUR40_GET_STATE 0xc5 /* 4 bytes state (?) */ #define SUR40_GET_SENSORS 0xb1 /* 8 bytes sensors */ +static const struct v4l2_pix_format sur40_pix_format[] = { + { + .pixelformat = V4L2_TCH_FMT_TU08, + .width = SENSOR_RES_X / 2, + .height = SENSOR_RES_Y / 2, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, + .bytesperline = SENSOR_RES_X / 2, + .sizeimage = (SENSOR_RES_X/2) * (SENSOR_RES_Y/2), + }, + { + .pixelformat = V4L2_PIX_FMT_GREY, + .width = SENSOR_RES_X / 2, + .height = SENSOR_RES_Y / 2, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, + .bytesperline = SENSOR_RES_X / 2, + .sizeimage = (SENSOR_RES_X/2) * (SENSOR_RES_Y/2), + } +}; + /* master device state */ struct sur40_state { @@ -149,6 +170,7 @@ struct sur40_state { struct v4l2_device v4l2; struct video_device vdev; struct mutex lock; + struct v4l2_pix_format pix_fmt; struct vb2_queue queue; struct list_head buf_list; @@ -169,7 +191,6 @@ struct sur40_buffer { /* forward declarations */ static const struct video_device sur40_video_device; -static const struct v4l2_pix_format sur40_video_format; static const struct vb2_queue sur40_queue; static void sur40_process_video(struct sur40_state *sur40); @@ -420,7 +441,7 @@ static void sur40_process_video(struct sur40_state *sur40) goto err_poll; } - if (le32_to_cpu(img->size) != sur40_video_format.sizeimage) { + if (le32_to_cpu(img->size) != sur40->pix_fmt.sizeimage) { dev_err(sur40->dev, "image size mismatch\n"); goto err_poll; } @@ -431,7 +452,7 @@ static void sur40_process_video(struct sur40_state *sur40) result = usb_sg_init(&sgr, sur40->usbdev, usb_rcvbulkpipe(sur40->usbdev, VIDEO_ENDPOINT), 0, - sgt->sgl, sgt->nents, sur40_video_format.sizeimage, 0); + sgt->sgl, sgt->nents, sur40->pix_fmt.sizeimage, 0); if (result < 0) { dev_err(sur40->dev, "error %d in usb_sg_init\n", result); goto err_poll; @@ -586,13 +607,14 @@ static int sur40_probe(struct usb_interface *interface, if (error) goto err_unreg_v4l2; + sur40->pix_fmt = sur40_pix_format[0]; sur40->vdev = sur40_video_device; sur40->vdev.v4l2_dev = &sur40->v4l2; sur40->vdev.lock = &sur40->lock; sur40->vdev.queue = &sur40->queue; video_set_drvdata(&sur40->vdev, sur40); - error = video_register_device(&sur40->vdev, VFL_TYPE_GRABBER, -1); + error = video_register_device(&sur40->vdev, VFL_TYPE_TOUCH, -1); if (error) { dev_err(&interface->dev, "Unable to register video subdevice."); @@ -647,14 +669,16 @@ static int sur40_queue_setup(struct vb2_queue *q, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { + struct sur40_state *sur40 = vb2_get_drv_priv(q); + if (q->num_buffers + *nbuffers < 3) *nbuffers = 3 - q->num_buffers; if (*nplanes) - return sizes[0] < sur40_video_format.sizeimage ? -EINVAL : 0; + return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0; *nplanes = 1; - sizes[0] = sur40_video_format.sizeimage; + sizes[0] = sur40->pix_fmt.sizeimage; return 0; } @@ -666,7 +690,7 @@ static int sur40_queue_setup(struct vb2_queue *q, static int sur40_buffer_prepare(struct vb2_buffer *vb) { struct sur40_state *sur40 = vb2_get_drv_priv(vb->vb2_queue); - unsigned long size = sur40_video_format.sizeimage; + unsigned long size = sur40->pix_fmt.sizeimage; if (vb2_plane_size(vb, 0) < size) { dev_err(&sur40->usbdev->dev, "buffer too small (%lu < %lu)\n", @@ -741,7 +765,7 @@ static int sur40_vidioc_querycap(struct file *file, void *priv, strlcpy(cap->driver, DRIVER_SHORT, sizeof(cap->driver)); strlcpy(cap->card, DRIVER_LONG, sizeof(cap->card)); usb_make_path(sur40->usbdev, cap->bus_info, sizeof(cap->bus_info)); - cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | + cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TOUCH | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; @@ -753,7 +777,7 @@ static int sur40_vidioc_enum_input(struct file *file, void *priv, { if (i->index != 0) return -EINVAL; - i->type = V4L2_INPUT_TYPE_CAMERA; + i->type = V4L2_INPUT_TYPE_TOUCH; i->std = V4L2_STD_UNKNOWN; strlcpy(i->name, "In-Cell Sensor", sizeof(i->name)); i->capabilities = 0; @@ -771,19 +795,70 @@ static int sur40_vidioc_g_input(struct file *file, void *priv, unsigned int *i) return 0; } -static int sur40_vidioc_fmt(struct file *file, void *priv, +static int sur40_vidioc_try_fmt(struct file *file, void *priv, + struct v4l2_format *f) +{ + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_GREY: + f->fmt.pix = sur40_pix_format[1]; + break; + + default: + f->fmt.pix = sur40_pix_format[0]; + break; + } + + return 0; +} + +static int sur40_vidioc_s_fmt(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct sur40_state *sur40 = video_drvdata(file); + + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_GREY: + sur40->pix_fmt = sur40_pix_format[1]; + break; + + default: + sur40->pix_fmt = sur40_pix_format[0]; + break; + } + + f->fmt.pix = sur40->pix_fmt; + return 0; +} + +static int sur40_vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) { - f->fmt.pix = sur40_video_format; + struct sur40_state *sur40 = video_drvdata(file); + + f->fmt.pix = sur40->pix_fmt; + return 0; +} + +static int sur40_ioctl_parm(struct file *file, void *priv, + struct v4l2_streamparm *p) +{ + if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + p->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + p->parm.capture.timeperframe.numerator = 1; + p->parm.capture.timeperframe.denominator = 60; + p->parm.capture.readbuffers = 3; return 0; } static int sur40_vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) { - if (f->index != 0) + if (f->index >= ARRAY_SIZE(sur40_pix_format)) return -EINVAL; - f->pixelformat = V4L2_PIX_FMT_GREY; + + f->pixelformat = sur40_pix_format[f->index].pixelformat; f->flags = 0; return 0; } @@ -791,25 +866,31 @@ static int sur40_vidioc_enum_fmt(struct file *file, void *priv, static int sur40_vidioc_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *f) { - if ((f->index != 0) || (f->pixel_format != V4L2_PIX_FMT_GREY)) + struct sur40_state *sur40 = video_drvdata(file); + + if ((f->index != 0) || ((f->pixel_format != V4L2_TCH_FMT_TU08) + && (f->pixel_format != V4L2_PIX_FMT_GREY))) return -EINVAL; f->type = V4L2_FRMSIZE_TYPE_DISCRETE; - f->discrete.width = sur40_video_format.width; - f->discrete.height = sur40_video_format.height; + f->discrete.width = sur40->pix_fmt.width; + f->discrete.height = sur40->pix_fmt.height; return 0; } static int sur40_vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *f) { - if ((f->index > 1) || (f->pixel_format != V4L2_PIX_FMT_GREY) - || (f->width != sur40_video_format.width) - || (f->height != sur40_video_format.height)) - return -EINVAL; + struct sur40_state *sur40 = video_drvdata(file); + + if ((f->index > 0) || ((f->pixel_format != V4L2_TCH_FMT_TU08) + && (f->pixel_format != V4L2_PIX_FMT_GREY)) + || (f->width != sur40->pix_fmt.width) + || (f->height != sur40->pix_fmt.height)) + return -EINVAL; f->type = V4L2_FRMIVAL_TYPE_DISCRETE; - f->discrete.denominator = 60/(f->index+1); + f->discrete.denominator = 60; f->discrete.numerator = 1; return 0; } @@ -862,13 +943,16 @@ static const struct v4l2_ioctl_ops sur40_video_ioctl_ops = { .vidioc_querycap = sur40_vidioc_querycap, .vidioc_enum_fmt_vid_cap = sur40_vidioc_enum_fmt, - .vidioc_try_fmt_vid_cap = sur40_vidioc_fmt, - .vidioc_s_fmt_vid_cap = sur40_vidioc_fmt, - .vidioc_g_fmt_vid_cap = sur40_vidioc_fmt, + .vidioc_try_fmt_vid_cap = sur40_vidioc_try_fmt, + .vidioc_s_fmt_vid_cap = sur40_vidioc_s_fmt, + .vidioc_g_fmt_vid_cap = sur40_vidioc_g_fmt, .vidioc_enum_framesizes = sur40_vidioc_enum_framesizes, .vidioc_enum_frameintervals = sur40_vidioc_enum_frameintervals, + .vidioc_g_parm = sur40_ioctl_parm, + .vidioc_s_parm = sur40_ioctl_parm, + .vidioc_enum_input = sur40_vidioc_enum_input, .vidioc_g_input = sur40_vidioc_g_input, .vidioc_s_input = sur40_vidioc_s_input, @@ -891,16 +975,6 @@ static const struct video_device sur40_video_device = { .release = video_device_release_empty, }; -static const struct v4l2_pix_format sur40_video_format = { - .pixelformat = V4L2_PIX_FMT_GREY, - .width = SENSOR_RES_X / 2, - .height = SENSOR_RES_Y / 2, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_SRGB, - .bytesperline = SENSOR_RES_X / 2, - .sizeimage = (SENSOR_RES_X/2) * (SENSOR_RES_Y/2), -}; - /* USB-specific object needed to register this driver with the USB subsystem. */ static struct usb_driver sur40_driver = { .name = DRIVER_SHORT, diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c index 73861ad22df4..a9132603ab34 100644 --- a/drivers/input/touchscreen/wdt87xx_i2c.c +++ b/drivers/input/touchscreen/wdt87xx_i2c.c @@ -23,7 +23,7 @@ #include <asm/unaligned.h> #define WDT87XX_NAME "wdt87xx_i2c" -#define WDT87XX_DRV_VER "0.9.7" +#define WDT87XX_DRV_VER "0.9.8" #define WDT87XX_FW_NAME "wdt87xx_fw.bin" #define WDT87XX_CFG_NAME "wdt87xx_cfg.bin" @@ -157,6 +157,7 @@ /* Controller requires minimum 300us between commands */ #define WDT_COMMAND_DELAY_MS 2 #define WDT_FLASH_WRITE_DELAY_MS 4 +#define WDT_FLASH_ERASE_DELAY_MS 200 #define WDT_FW_RESET_TIME 2500 struct wdt87xx_sys_param { @@ -726,7 +727,7 @@ static int wdt87xx_write_firmware(struct i2c_client *client, const void *chunk) break; } - msleep(50); + msleep(WDT_FLASH_ERASE_DELAY_MS); error = wdt87xx_write_data(client, data, start_addr, page_size); diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c index 1534e9b0788c..90d6be3c26cc 100644 --- a/drivers/input/touchscreen/wm97xx-core.c +++ b/drivers/input/touchscreen/wm97xx-core.c @@ -500,7 +500,7 @@ static int wm97xx_ts_input_open(struct input_dev *idev) { struct wm97xx *wm = input_get_drvdata(idev); - wm->ts_workq = create_singlethread_workqueue("kwm97xx"); + wm->ts_workq = alloc_ordered_workqueue("kwm97xx", 0); if (wm->ts_workq == NULL) { dev_err(wm->dev, "Failed to create workqueue\n"); |