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path: root/drivers/mfd/ucb1x00-ts.c
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Diffstat (limited to 'drivers/mfd/ucb1x00-ts.c')
-rw-r--r--drivers/mfd/ucb1x00-ts.c121
1 files changed, 79 insertions, 42 deletions
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index a851d65c7cfe..a984c0efabf0 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -32,15 +32,18 @@
#include <linux/suspend.h>
#include <linux/slab.h>
#include <linux/kthread.h>
+#include <linux/delay.h>
#include <asm/dma.h>
#include <asm/semaphore.h>
+#include <asm/arch/collie.h>
+#include <asm/mach-types.h>
#include "ucb1x00.h"
struct ucb1x00_ts {
- struct input_dev idev;
+ struct input_dev *idev;
struct ucb1x00 *ucb;
wait_queue_head_t irq_wait;
@@ -48,24 +51,24 @@ struct ucb1x00_ts {
u16 x_res;
u16 y_res;
- int restart:1;
- int adcsync:1;
+ unsigned int restart:1;
+ unsigned int adcsync:1;
};
static int adcsync;
static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x, u16 y)
{
- input_report_abs(&ts->idev, ABS_X, x);
- input_report_abs(&ts->idev, ABS_Y, y);
- input_report_abs(&ts->idev, ABS_PRESSURE, pressure);
- input_sync(&ts->idev);
+ input_report_abs(ts->idev, ABS_X, x);
+ input_report_abs(ts->idev, ABS_Y, y);
+ input_report_abs(ts->idev, ABS_PRESSURE, pressure);
+ input_sync(ts->idev);
}
static inline void ucb1x00_ts_event_release(struct ucb1x00_ts *ts)
{
- input_report_abs(&ts->idev, ABS_PRESSURE, 0);
- input_sync(&ts->idev);
+ input_report_abs(ts->idev, ABS_PRESSURE, 0);
+ input_sync(ts->idev);
}
/*
@@ -85,12 +88,23 @@ static inline void ucb1x00_ts_mode_int(struct ucb1x00_ts *ts)
*/
static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie()) {
+ ucb1x00_io_write(ts->ucb, COLLIE_TC35143_GPIO_TBL_CHK, 0);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSPX_POW | UCB_TS_CR_TSMX_POW |
+ UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
- return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+ udelay(55);
+
+ return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_AD2, ts->adcsync);
+ } else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+
+ return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+ }
}
/*
@@ -101,12 +115,16 @@ static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts)
*/
static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie())
+ ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+ else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ }
ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
@@ -124,12 +142,17 @@ static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts)
*/
static inline unsigned int ucb1x00_ts_read_ypos(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie())
+ ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+ else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ }
+
ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
@@ -163,6 +186,15 @@ static inline unsigned int ucb1x00_ts_read_yres(struct ucb1x00_ts *ts)
return ucb1x00_adc_read(ts->ucb, 0, ts->adcsync);
}
+static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts)
+{
+ unsigned int val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
+ if (machine_is_collie())
+ return (!(val & (UCB_TS_CR_TSPX_LOW)));
+ else
+ return (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW));
+}
+
/*
* This is a RT kernel thread that handles the ADC accesses
* (mainly so we can use semaphores in the UCB1200 core code
@@ -186,7 +218,7 @@ static int ucb1x00_thread(void *_ts)
add_wait_queue(&ts->irq_wait, &wait);
while (!kthread_should_stop()) {
- unsigned int x, y, p, val;
+ unsigned int x, y, p;
signed long timeout;
ts->restart = 0;
@@ -206,12 +238,12 @@ static int ucb1x00_thread(void *_ts)
msleep(10);
ucb1x00_enable(ts->ucb);
- val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
- if (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW)) {
+
+ if (ucb1x00_ts_pen_down(ts)) {
set_task_state(tsk, TASK_INTERRUPTIBLE);
- ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING);
+ ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, machine_is_collie() ? UCB_RISING : UCB_FALLING);
ucb1x00_disable(ts->ucb);
/*
@@ -341,26 +373,30 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
{
struct ucb1x00_ts *ts;
- ts = kmalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL);
+ ts = kzalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
- memset(ts, 0, sizeof(struct ucb1x00_ts));
+ ts->idev = input_allocate_device();
+ if (!ts->idev) {
+ kfree(ts);
+ return -ENOMEM;
+ }
ts->ucb = dev->ucb;
ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
- ts->idev.name = "Touchscreen panel";
- ts->idev.id.product = ts->ucb->id;
- ts->idev.open = ucb1x00_ts_open;
- ts->idev.close = ucb1x00_ts_close;
+ ts->idev->name = "Touchscreen panel";
+ ts->idev->id.product = ts->ucb->id;
+ ts->idev->open = ucb1x00_ts_open;
+ ts->idev->close = ucb1x00_ts_close;
- __set_bit(EV_ABS, ts->idev.evbit);
- __set_bit(ABS_X, ts->idev.absbit);
- __set_bit(ABS_Y, ts->idev.absbit);
- __set_bit(ABS_PRESSURE, ts->idev.absbit);
+ __set_bit(EV_ABS, ts->idev->evbit);
+ __set_bit(ABS_X, ts->idev->absbit);
+ __set_bit(ABS_Y, ts->idev->absbit);
+ __set_bit(ABS_PRESSURE, ts->idev->absbit);
- input_register_device(&ts->idev);
+ input_register_device(ts->idev);
dev->priv = ts;
@@ -370,7 +406,8 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
static void ucb1x00_ts_remove(struct ucb1x00_dev *dev)
{
struct ucb1x00_ts *ts = dev->priv;
- input_unregister_device(&ts->idev);
+
+ input_unregister_device(ts->idev);
kfree(ts);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 16:42:09 +0100