V4L/DVB (8421): Adds support for Dvbworld DVB-S 2102 USB card

Signed-off-by: Igor M Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

6 files changed, 543 insertions, 0 deletions

diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig
index a577c0f89f67..3c663c65ef66 100644
--- a/drivers/media/dvb/dvb-usb/Kconfig
+++ b/drivers/media/dvb/dvb-usb/Kconfig
@@ -246,6 +246,14 @@ config DVB_USB_AF9005_REMOTE
 	  Say Y here to support the default remote control decoding for the
 	  Afatech AF9005 based receiver.
 
+config DVB_USB_DW2102
+	tristate "DvbWorld 2102 DVB-S USB2.0 receiver"
+	depends on DVB_USB
+	select DVB_STV0299 if !DVB_FE_CUSTOMISE
+	select DVB_PLL if !DVB_FE_CUSTOMISE
+	help
+	   Say Y here to support the DvbWorld 2102 DVB-S USB2.0 receiver.
+
 config DVB_USB_ANYSEE
 	tristate "Anysee DVB-T/C USB2.0 support"
 	depends on DVB_USB
diff --git a/drivers/media/dvb/dvb-usb/Makefile b/drivers/media/dvb/dvb-usb/Makefile
index 44c11e45e564..e206f1ea0027 100644
--- a/drivers/media/dvb/dvb-usb/Makefile
+++ b/drivers/media/dvb/dvb-usb/Makefile
@@ -64,6 +64,9 @@ obj-$(CONFIG_DVB_USB_AF9005_REMOTE) += dvb-usb-af9005-remote.o
 dvb-usb-anysee-objs = anysee.o
 obj-$(CONFIG_DVB_USB_ANYSEE) += dvb-usb-anysee.o
 
+dvb-usb-dw2102-objs = dw2102.o
+obj-$(CONFIG_DVB_USB_DW2102) += dvb-usb-dw2102.o
+
 EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core/ -Idrivers/media/dvb/frontends/
 # due to tuner-xc3028
 EXTRA_CFLAGS += -Idrivers/media/common/tuners
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
index e5238b31e946..029b437caf9a 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
@@ -204,5 +204,6 @@
 #define USB_PID_ASUS_U3000				0x171f
 #define USB_PID_ASUS_U3100				0x173f
 #define USB_PID_YUAN_EC372S				0x1edc
+#define USB_PID_DW2102					0x2102
 
 #endif
diff --git a/drivers/media/dvb/dvb-usb/dw2102.c b/drivers/media/dvb/dvb-usb/dw2102.c
new file mode 100644
index 000000000000..a4d898b44e55
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dw2102.c
@@ -0,0 +1,425 @@
+/* DVB USB framework compliant Linux driver for the DVBWorld DVB-S 2102 Card
+*
+* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
+*
+*	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.
+*
+* see Documentation/dvb/README.dvb-usb for more information
+*/
+#include <linux/version.h>
+#include "dw2102.h"
+#include "stv0299.h"
+#include "z0194a.h"
+
+#ifndef USB_PID_DW2102
+#define USB_PID_DW2102 0x2102
+#endif
+
+#define DW2102_READ_MSG 0
+#define DW2102_WRITE_MSG 1
+
+#define REG_1F_SYMBOLRATE_BYTE0 0x1f
+#define REG_20_SYMBOLRATE_BYTE1 0x20
+#define REG_21_SYMBOLRATE_BYTE2 0x21
+
+#define DW2102_VOLTAGE_CTRL (0x1800)
+#define DW2102_RC_QUERY (0x1a00)
+
+struct dw2102_state {
+	u32 last_key_pressed;
+};
+struct dw2102_rc_keys {
+	u32 keycode;
+	u32 event;
+};
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int dw2102_op_rw(struct usb_device *dev, u8 request, u16 value,
+		u8 *data, u16 len, int flags)
+{
+	int ret;
+	u8 u8buf[len];
+
+	unsigned int pipe = (flags == DW2102_READ_MSG) ?
+		usb_rcvctrlpipe(dev, 0) : usb_sndctrlpipe(dev, 0);
+	u8 request_type = (flags == DW2102_READ_MSG) ? USB_DIR_IN : USB_DIR_OUT;
+
+	if (flags == DW2102_WRITE_MSG)
+		memcpy(u8buf, data, len);
+	ret = usb_control_msg(dev, pipe, request,
+		request_type | USB_TYPE_VENDOR, value, 0 , u8buf, len, 2000);
+
+	if (flags == DW2102_READ_MSG)
+		memcpy(data, u8buf, len);
+	return ret;
+}
+
+/* I2C */
+
+static int dw2102_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+		int num)
+{
+struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int i = 0, ret = 0;
+	u8 buf6[] = {0x2c, 0x05, 0xc0, 0, 0, 0, 0};
+	u8 request;
+	u16 value;
+
+	if (!d)
+		return -ENODEV;
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	switch (num) {
+	case 2:
+		/* read stv0299 register */
+		request = 0xb5;
+		value = msg[0].buf[0];/* register */
+		for (i = 0; i < msg[1].len; i++) {
+			value = value + i;
+			ret = dw2102_op_rw(d->udev, 0xb5,
+				value, buf6, 2, DW2102_READ_MSG);
+			msg[1].buf[i] = buf6[0];
+
+		}
+		break;
+	case 1:
+		switch (msg[0].addr) {
+		case 0x68:
+			/* write to stv0299 register */
+			buf6[0] = 0x2a;
+			buf6[1] = msg[0].buf[0];
+			buf6[2] = msg[0].buf[1];
+			ret = dw2102_op_rw(d->udev, 0xb2,
+				0, buf6, 3, DW2102_WRITE_MSG);
+			break;
+		case 0x60:
+			if (msg[0].flags == 0) {
+			/* write to tuner pll */
+				buf6[0] = 0x2c;
+				buf6[1] = 5;
+				buf6[2] = 0xc0;
+				buf6[3] = msg[0].buf[0];
+				buf6[4] = msg[0].buf[1];
+				buf6[5] = msg[0].buf[2];
+				buf6[6] = msg[0].buf[3];
+				ret = dw2102_op_rw(d->udev, 0xb2,
+				0, buf6, 7, DW2102_WRITE_MSG);
+			} else {
+			/* write to tuner pll */
+				ret = dw2102_op_rw(d->udev, 0xb5,
+				0, buf6, 1, DW2102_READ_MSG);
+				msg[0].buf[0] = buf6[0];
+			}
+			break;
+		case (DW2102_RC_QUERY):
+			ret  = dw2102_op_rw(d->udev, 0xb8,
+				0, buf6, 2, DW2102_READ_MSG);
+			msg[0].buf[0] = buf6[0];
+			msg[0].buf[1] = buf6[1];
+			break;
+		case (DW2102_VOLTAGE_CTRL):
+			buf6[0] = 0x30;
+			buf6[1] = msg[0].buf[0];
+			ret = dw2102_op_rw(d->udev, 0xb2,
+				0, buf6, 2, DW2102_WRITE_MSG);
+			break;
+		}
+
+		break;
+	}
+
+	mutex_unlock(&d->i2c_mutex);
+	return num;
+}
+
+static u32 dw2102_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dw2102_i2c_algo = {
+	.master_xfer = dw2102_i2c_transfer,
+	.functionality = dw2102_i2c_func,
+};
+
+static int dw2102_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
+{
+	static u8 command_13v[1] = {0x00};
+	static u8 command_18v[1] = {0x01};
+	struct i2c_msg msg[] = {
+		{.addr = DW2102_VOLTAGE_CTRL, .flags = 0,
+			.buf = command_13v, .len = 1},
+	};
+
+	struct dvb_usb_adapter *udev_adap =
+		(struct dvb_usb_adapter *)(fe->dvb->priv);
+	if (voltage == SEC_VOLTAGE_18)
+		msg[0].buf = command_18v;
+	i2c_transfer(&udev_adap->dev->i2c_adap, msg, 1);
+	return 0;
+}
+
+static int dw2102_frontend_attach(struct dvb_usb_adapter *d)
+{
+	d->fe = dvb_attach(stv0299_attach, &sharp_z0194a_config,
+		&d->dev->i2c_adap);
+	if (d->fe != NULL) {
+		d->fe->ops.set_voltage = dw2102_set_voltage;
+		info("Attached stv0299!\n");
+		return 0;
+	}
+	return -EIO;
+}
+
+static int dw2102_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	dvb_attach(dvb_pll_attach, adap->fe, 0x60,
+		&adap->dev->i2c_adap, DVB_PLL_OPERA1);
+	return 0;
+}
+
+static struct dvb_usb_rc_key dw2102_rc_keys[] = {
+	{ 0xf8,	0x0a, KEY_Q },		/*power*/
+	{ 0xf8,	0x0c, KEY_M },		/*mute*/
+	{ 0xf8,	0x11, KEY_1 },
+	{ 0xf8,	0x12, KEY_2 },
+	{ 0xf8,	0x13, KEY_3 },
+	{ 0xf8,	0x14, KEY_4 },
+	{ 0xf8,	0x15, KEY_5 },
+	{ 0xf8,	0x16, KEY_6 },
+	{ 0xf8,	0x17, KEY_7 },
+	{ 0xf8,	0x18, KEY_8 },
+	{ 0xf8,	0x19, KEY_9 },
+	{ 0xf8, 0x10, KEY_0 },
+	{ 0xf8, 0x1c, KEY_PAGEUP },	/*ch+*/
+	{ 0xf8, 0x0f, KEY_PAGEDOWN },	/*ch-*/
+	{ 0xf8, 0x1a, KEY_O },		/*vol+*/
+	{ 0xf8, 0x0e, KEY_Z },		/*vol-*/
+	{ 0xf8, 0x04, KEY_R },		/*rec*/
+	{ 0xf8, 0x09, KEY_D },		/*fav*/
+	{ 0xf8, 0x08, KEY_BACKSPACE },	/*rewind*/
+	{ 0xf8, 0x07, KEY_A },		/*fast*/
+	{ 0xf8, 0x0b, KEY_P },		/*pause*/
+	{ 0xf8, 0x02, KEY_ESC },	/*cancel*/
+	{ 0xf8, 0x03, KEY_G },		/*tab*/
+	{ 0xf8, 0x00, KEY_UP },		/*up*/
+	{ 0xf8, 0x1f, KEY_ENTER },	/*ok*/
+	{ 0xf8, 0x01, KEY_DOWN },	/*down*/
+	{ 0xf8, 0x05, KEY_C },		/*cap*/
+	{ 0xf8, 0x06, KEY_S },		/*stop*/
+	{ 0xf8, 0x40, KEY_F },		/*full*/
+	{ 0xf8, 0x1e, KEY_W },		/*tvmode*/
+	{ 0xf8, 0x1b, KEY_B },		/*recall*/
+
+};
+
+
+
+static int dw2102_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+	struct dw2102_state *st = d->priv;
+	u8 key[2];
+	struct i2c_msg msg[] = {
+		{.addr = DW2102_RC_QUERY, .flags = I2C_M_RD, .buf = key,
+		.len = 2},
+	};
+	int i;
+
+	*state = REMOTE_NO_KEY_PRESSED;
+	if (dw2102_i2c_transfer(&d->i2c_adap, msg, 1) == 1) {
+		for (i = 0; i < ARRAY_SIZE(dw2102_rc_keys); i++) {
+			if (dw2102_rc_keys[i].data == msg[0].buf[0]) {
+				*state = REMOTE_KEY_PRESSED;
+				*event = dw2102_rc_keys[i].event;
+				st->last_key_pressed =
+					dw2102_rc_keys[i].event;
+				break;
+			}
+		st->last_key_pressed = 0;
+		}
+	}
+	/* info("key: %x %x\n",key[0],key[1]); */
+	return 0;
+}
+
+static struct usb_device_id dw2102_table[] = {
+	{USB_DEVICE(USB_VID_CYPRESS, USB_PID_DW2102)},
+	{USB_DEVICE(USB_VID_CYPRESS, 0x2101)},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, dw2102_table);
+
+static int dw2102_load_firmware(struct usb_device *dev,
+			const struct firmware *frmwr)
+{
+	u8 *b, *p;
+	int ret = 0, i;
+	u8 reset;
+	u8 reset16 [] = {0, 0, 0, 0, 0, 0, 0};
+	const struct firmware *fw;
+	const char *filename = "dvb-usb-dw2101.fw";
+	switch (dev->descriptor.idProduct) {
+	case 0x2101:
+		ret = request_firmware(&fw, filename, &dev->dev);
+		if (ret != 0) {
+			err("did not find the firmware file. (%s) "
+			"Please see linux/Documentation/dvb/ for more details "
+			"on firmware-problems.", filename);
+			return ret;
+		}
+		break;
+	case USB_PID_DW2102:
+		fw = frmwr;
+		break;
+	}
+	info("start downloading DW2102 firmware");
+	p = kmalloc(fw->size, GFP_KERNEL);
+	reset = 1;
+	/*stop the CPU*/
+	dw2102_op_rw(dev, 0xa0, 0x7f92, &reset, 1, DW2102_WRITE_MSG);
+	dw2102_op_rw(dev, 0xa0, 0xe600, &reset, 1, DW2102_WRITE_MSG);
+
+	if (p != NULL) {
+		memcpy(p, fw->data, fw->size);
+		for (i = 0; i < fw->size; i += 0x40) {
+			b = (u8 *) p + i;
+			if (dw2102_op_rw
+				(dev, 0xa0, i, b , 0x40,
+					DW2102_WRITE_MSG) != 0x40
+				) {
+				err("error while transferring firmware");
+				ret = -EINVAL;
+				break;
+			}
+		}
+		/* restart the CPU */
+		reset = 0;
+		if (ret || dw2102_op_rw
+			(dev, 0xa0, 0x7f92, &reset, 1,
+			DW2102_WRITE_MSG) != 1) {
+			err("could not restart the USB controller CPU.");
+			ret = -EINVAL;
+		}
+		if (ret || dw2102_op_rw
+			(dev, 0xa0, 0xe600, &reset, 1,
+			DW2102_WRITE_MSG) != 1) {
+			err("could not restart the USB controller CPU.");
+			ret = -EINVAL;
+		}
+		/* init registers */
+		switch (dev->descriptor.idProduct) {
+		case USB_PID_DW2102:
+			dw2102_op_rw
+				(dev, 0xbf, 0x0040, &reset, 0,
+				DW2102_WRITE_MSG);
+			dw2102_op_rw
+				(dev, 0xb9, 0x0000, &reset16[0], 2,
+				DW2102_READ_MSG);
+			break;
+		case 0x2101:
+			dw2102_op_rw
+				(dev, 0xbc, 0x0030, &reset16[0], 2,
+				DW2102_READ_MSG);
+			dw2102_op_rw
+				(dev, 0xba, 0x0000, &reset16[0], 7,
+				DW2102_READ_MSG);
+			dw2102_op_rw
+				(dev, 0xba, 0x0000, &reset16[0], 7,
+				DW2102_READ_MSG);
+			dw2102_op_rw
+				(dev, 0xb9, 0x0000, &reset16[0], 2,
+				DW2102_READ_MSG);
+			break;
+		}
+		kfree(p);
+	}
+	return ret;
+}
+
+static struct dvb_usb_device_properties dw2102_properties = {
+	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
+	.usb_ctrl = DEVICE_SPECIFIC,
+	.firmware = "dvb-usb-dw2102.fw",
+	.size_of_priv = sizeof(struct dw2102_state),
+	.no_reconnect = 1,
+
+	.i2c_algo = &dw2102_i2c_algo,
+	.rc_key_map = dw2102_rc_keys,
+	.rc_key_map_size = ARRAY_SIZE(dw2102_rc_keys),
+	.rc_interval = 150,
+	.rc_query = dw2102_rc_query,
+
+	.generic_bulk_ctrl_endpoint = 0x81,
+	/* parameter for the MPEG2-data transfer */
+	.num_adapters = 1,
+	.download_firmware = dw2102_load_firmware,
+	.adapter = {
+		{
+			.frontend_attach = dw2102_frontend_attach,
+			.streaming_ctrl = NULL,
+			.tuner_attach = dw2102_tuner_attach,
+			.stream = {
+				.type = USB_BULK,
+				.count = 8,
+				.endpoint = 0x82,
+				.u = {
+					.bulk = {
+						.buffersize = 4096,
+					}
+				}
+			},
+		}
+	},
+	.num_device_descs = 2,
+	.devices = {
+		{"DVBWorld DVB-S 2102 USB2.0",
+			{&dw2102_table[0], NULL},
+			{NULL},
+		},
+		{"DVBWorld DVB-S 2101 USB2.0",
+			{&dw2102_table[1], NULL},
+			{NULL},
+		},
+	}
+};
+
+static int dw2102_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	return dvb_usb_device_init(intf, &dw2102_properties,
+		THIS_MODULE, NULL, adapter_nr);
+}
+
+static struct usb_driver dw2102_driver = {
+	.name = "dw2102",
+	.probe = dw2102_probe,
+	.disconnect = dvb_usb_device_exit,
+	.id_table = dw2102_table,
+};
+
+static int __init dw2102_module_init(void)
+{
+	int ret =  usb_register(&dw2102_driver);
+	if (ret)
+		err("usb_register failed. Error number %d", ret);
+
+	return ret;
+}
+
+static void __exit dw2102_module_exit(void)
+{
+	usb_deregister(&dw2102_driver);
+}
+
+module_init(dw2102_module_init);
+module_exit(dw2102_module_exit);
+
+MODULE_AUTHOR("Igor M. Liplianin (c) liplianin@me.by");
+MODULE_DESCRIPTION("Driver for DVBWorld DVB-S 2101 2102 USB2.0 device");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/dvb-usb/dw2102.h b/drivers/media/dvb/dvb-usb/dw2102.h
new file mode 100644
index 000000000000..cb5873752e46
--- /dev/null
+++ b/drivers/media/dvb/dvb-usb/dw2102.h
@@ -0,0 +1,9 @@
+#ifndef _DW2102_H_
+#define _DW2102_H_
+
+#define DVB_USB_LOG_PREFIX "dw2102"
+#include <dvb-usb.h>
+
+extern int dvb_usb_dw2102_debug;
+#define deb_xfer(args...) dprintk(dvb_usb_dw2102_debug, 0x02, args)
+#endif
diff --git a/drivers/media/dvb/frontends/z0194a.h b/drivers/media/dvb/frontends/z0194a.h
new file mode 100644
index 000000000000..b5ca9e754218
--- /dev/null
+++ b/drivers/media/dvb/frontends/z0194a.h
@@ -0,0 +1,97 @@
+/* z0194a.h Sharp z0194a tuner support
+*
+* Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by)
+*
+*	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.
+*
+* see Documentation/dvb/README.dvb-usb for more information
+*/
+
+#ifndef Z0194A
+#define Z0194A
+
+static int sharp_z0194a__set_symbol_rate(struct dvb_frontend *fe,
+					 u32 srate, u32 ratio)
+{
+	u8 aclk = 0;
+	u8 bclk = 0;
+
+	if (srate < 1500000) {
+		aclk = 0xb7; bclk = 0x47; }
+	else if (srate < 3000000) {
+		aclk = 0xb7; bclk = 0x4b; }
+	else if (srate < 7000000) {
+		aclk = 0xb7; bclk = 0x4f; }
+	else if (srate < 14000000) {
+		aclk = 0xb7; bclk = 0x53; }
+	else if (srate < 30000000) {
+		aclk = 0xb6; bclk = 0x53; }
+	else if (srate < 45000000) {
+		aclk = 0xb4; bclk = 0x51; }
+
+	stv0299_writereg(fe, 0x13, aclk);
+	stv0299_writereg(fe, 0x14, bclk);
+	stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff);
+	stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff);
+	stv0299_writereg(fe, 0x21, (ratio) & 0xf0);
+
+	return 0;
+}
+
+static u8 sharp_z0194a__inittab[] = {
+	0x01, 0x15,
+	0x02, 0x00,
+	0x03, 0x00,
+	0x04, 0x7d,   /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */
+	0x05, 0x35,   /* I2CT = 0, SCLT = 1, SDAT = 1 */
+	0x06, 0x40,   /* DAC not used, set to high impendance mode */
+	0x07, 0x00,   /* DAC LSB */
+	0x08, 0x40,   /* DiSEqC off, LNB power on OP2/LOCK pin on */
+	0x09, 0x00,   /* FIFO */
+	0x0c, 0x51,   /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */
+	0x0d, 0x82,   /* DC offset compensation = ON, beta_agc1 = 2 */
+	0x0e, 0x23,   /* alpha_tmg = 2, beta_tmg = 3 */
+	0x10, 0x3f,   /* AGC2  0x3d */
+	0x11, 0x84,
+	0x12, 0xb9,
+	0x15, 0xc9,   /* lock detector threshold */
+	0x16, 0x00,
+	0x17, 0x00,
+	0x18, 0x00,
+	0x19, 0x00,
+	0x1a, 0x00,
+	0x1f, 0x50,
+	0x20, 0x00,
+	0x21, 0x00,
+	0x22, 0x00,
+	0x23, 0x00,
+	0x28, 0x00,  /* out imp: normal  out type: parallel FEC mode:0 */
+	0x29, 0x1e,  /* 1/2 threshold */
+	0x2a, 0x14,  /* 2/3 threshold */
+	0x2b, 0x0f,  /* 3/4 threshold */
+	0x2c, 0x09,  /* 5/6 threshold */
+	0x2d, 0x05,  /* 7/8 threshold */
+	0x2e, 0x01,
+	0x31, 0x1f,  /* test all FECs */
+	0x32, 0x19,  /* viterbi and synchro search */
+	0x33, 0xfc,  /* rs control */
+	0x34, 0x93,  /* error control */
+	0x0f, 0x52,
+	0xff, 0xff
+};
+
+static struct stv0299_config sharp_z0194a_config = {
+	.demod_address = 0x68,
+	.inittab = sharp_z0194a__inittab,
+	.mclk = 88000000UL,
+	.invert = 1,
+	.skip_reinit = 0,
+	.lock_output = STV0229_LOCKOUTPUT_1,
+	.volt13_op0_op1 = STV0299_VOLT13_OP1,
+	.min_delay_ms = 100,
+	.set_symbol_rate = sharp_z0194a__set_symbol_rate,
+};
+
+#endif