/* 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");
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