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linux/drivers/media/video/em28xx/em28xx-dvb.c
Uroš Vampl ec994d0505 V4L/DVB (13078): em28xx: fix support for Terratec Cinergy T XS (005e) 
Make analog audio, dvb and the remote work on a Terratec Cinergy Hybrid
XS (em2882).

Note by djh: Thanks go out fo Andrej Suligoi for his contribution in providing
and testing pretty much the exact same patch as provided by Uros.  Between
the two of them, they got all the core functionality working for the device.

Cc: Andrej Suligoi <suligoi@gmail.com>
Signed-off-by: Uroš Vampl <mobile.leecher@gmail.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:40:14 -02:00

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/*
DVB device driver for em28xx
(c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
(c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
- Fixes for the driver to properly work with HVR-950
- Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
- Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
(c) 2008 Aidan Thornton <makosoft@googlemail.com>
Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
(c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
(c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
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.
*/
#include <linux/kernel.h>
#include <linux/usb.h>
#include "em28xx.h"
#include <media/v4l2-common.h>
#include <media/videobuf-vmalloc.h>
#include <media/tuner.h>
#include "tuner-simple.h"
#include "lgdt330x.h"
#include "zl10353.h"
#include "s5h1409.h"
#include "mt352.h"
#include "mt352_priv.h" /* FIXME */
#include "tda1002x.h"
MODULE_DESCRIPTION("driver for em28xx based DVB cards");
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
MODULE_LICENSE("GPL");
static unsigned int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
#define dprintk(level, fmt, arg...) do { \
if (debug >= level) \
printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
} while (0)
#define EM28XX_DVB_NUM_BUFS 5
#define EM28XX_DVB_MAX_PACKETS 64
struct em28xx_dvb {
struct dvb_frontend *frontend;
/* feed count management */
struct mutex lock;
int nfeeds;
/* general boilerplate stuff */
struct dvb_adapter adapter;
struct dvb_demux demux;
struct dmxdev dmxdev;
struct dmx_frontend fe_hw;
struct dmx_frontend fe_mem;
struct dvb_net net;
};
static inline void print_err_status(struct em28xx *dev,
int packet, int status)
{
char *errmsg = "Unknown";
switch (status) {
case -ENOENT:
errmsg = "unlinked synchronuously";
break;
case -ECONNRESET:
errmsg = "unlinked asynchronuously";
break;
case -ENOSR:
errmsg = "Buffer error (overrun)";
break;
case -EPIPE:
errmsg = "Stalled (device not responding)";
break;
case -EOVERFLOW:
errmsg = "Babble (bad cable?)";
break;
case -EPROTO:
errmsg = "Bit-stuff error (bad cable?)";
break;
case -EILSEQ:
errmsg = "CRC/Timeout (could be anything)";
break;
case -ETIME:
errmsg = "Device does not respond";
break;
}
if (packet < 0) {
dprintk(1, "URB status %d [%s].\n", status, errmsg);
} else {
dprintk(1, "URB packet %d, status %d [%s].\n",
packet, status, errmsg);
}
}
static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
{
int i;
if (!dev)
return 0;
if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
return 0;
if (urb->status < 0) {
print_err_status(dev, -1, urb->status);
if (urb->status == -ENOENT)
return 0;
}
for (i = 0; i < urb->number_of_packets; i++) {
int status = urb->iso_frame_desc[i].status;
if (status < 0) {
print_err_status(dev, i, status);
if (urb->iso_frame_desc[i].status != -EPROTO)
continue;
}
dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
urb->iso_frame_desc[i].offset,
urb->iso_frame_desc[i].actual_length);
}
return 0;
}
static int start_streaming(struct em28xx_dvb *dvb)
{
int rc;
struct em28xx *dev = dvb->adapter.priv;
int max_dvb_packet_size;
usb_set_interface(dev->udev, 0, 1);
rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
if (rc < 0)
return rc;
max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
dvb_isoc_copy);
}
static int stop_streaming(struct em28xx_dvb *dvb)
{
struct em28xx *dev = dvb->adapter.priv;
em28xx_uninit_isoc(dev);
em28xx_set_mode(dev, EM28XX_SUSPEND);
return 0;
}
static int start_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct em28xx_dvb *dvb = demux->priv;
int rc, ret;
if (!demux->dmx.frontend)
return -EINVAL;
mutex_lock(&dvb->lock);
dvb->nfeeds++;
rc = dvb->nfeeds;
if (dvb->nfeeds == 1) {
ret = start_streaming(dvb);
if (ret < 0)
rc = ret;
}
mutex_unlock(&dvb->lock);
return rc;
}
static int stop_feed(struct dvb_demux_feed *feed)
{
struct dvb_demux *demux = feed->demux;
struct em28xx_dvb *dvb = demux->priv;
int err = 0;
mutex_lock(&dvb->lock);
dvb->nfeeds--;
if (0 == dvb->nfeeds)
err = stop_streaming(dvb);
mutex_unlock(&dvb->lock);
return err;
}
/* ------------------------------------------------------------------ */
static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
struct em28xx *dev = fe->dvb->priv;
if (acquire)
return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
else
return em28xx_set_mode(dev, EM28XX_SUSPEND);
}
/* ------------------------------------------------------------------ */
static struct lgdt330x_config em2880_lgdt3303_dev = {
.demod_address = 0x0e,
.demod_chip = LGDT3303,
};
static struct zl10353_config em28xx_zl10353_with_xc3028 = {
.demod_address = (0x1e >> 1),
.no_tuner = 1,
.parallel_ts = 1,
.if2 = 45600,
};
static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
.demod_address = 0x32 >> 1,
.output_mode = S5H1409_PARALLEL_OUTPUT,
.gpio = S5H1409_GPIO_OFF,
.inversion = S5H1409_INVERSION_OFF,
.status_mode = S5H1409_DEMODLOCKING,
.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
};
static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
.demod_address = (0x1e >> 1),
.no_tuner = 1,
.disable_i2c_gate_ctrl = 1,
.parallel_ts = 1,
.if2 = 45600,
};
#ifdef EM28XX_DRX397XD_SUPPORT
/* [TODO] djh - not sure yet what the device config needs to contain */
static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
.demod_address = (0xe0 >> 1),
};
#endif
static int mt352_terratec_xs_init(struct dvb_frontend *fe)
{
/* Values extracted from a USB trace of the Terratec Windows driver */
static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
static u8 reset[] = { RESET, 0x80 };
static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
static u8 tuner_go[] = { TUNER_GO, 0x01};
mt352_write(fe, clock_config, sizeof(clock_config));
udelay(200);
mt352_write(fe, reset, sizeof(reset));
mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
mt352_write(fe, agc_cfg, sizeof(agc_cfg));
mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
mt352_write(fe, tuner_go, sizeof(tuner_go));
return 0;
}
static struct mt352_config terratec_xs_mt352_cfg = {
.demod_address = (0x1e >> 1),
.no_tuner = 1,
.if2 = 45600,
.demod_init = mt352_terratec_xs_init,
};
static struct tda10023_config em28xx_tda10023_config = {
.demod_address = 0x0c,
.invert = 1,
};
/* ------------------------------------------------------------------ */
static int attach_xc3028(u8 addr, struct em28xx *dev)
{
struct dvb_frontend *fe;
struct xc2028_config cfg;
memset(&cfg, 0, sizeof(cfg));
cfg.i2c_adap = &dev->i2c_adap;
cfg.i2c_addr = addr;
if (!dev->dvb->frontend) {
printk(KERN_ERR "%s/2: dvb frontend not attached. "
"Can't attach xc3028\n",
dev->name);
return -EINVAL;
}
fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
if (!fe) {
printk(KERN_ERR "%s/2: xc3028 attach failed\n",
dev->name);
dvb_frontend_detach(dev->dvb->frontend);
dev->dvb->frontend = NULL;
return -EINVAL;
}
printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);
return 0;
}
/* ------------------------------------------------------------------ */
static int register_dvb(struct em28xx_dvb *dvb,
struct module *module,
struct em28xx *dev,
struct device *device)
{
int result;
mutex_init(&dvb->lock);
/* register adapter */
result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
adapter_nr);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
dev->name, result);
goto fail_adapter;
}
/* Ensure all frontends negotiate bus access */
dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
dvb->adapter.priv = dev;
/* register frontend */
result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
dev->name, result);
goto fail_frontend;
}
/* register demux stuff */
dvb->demux.dmx.capabilities =
DMX_TS_FILTERING | DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING;
dvb->demux.priv = dvb;
dvb->demux.filternum = 256;
dvb->demux.feednum = 256;
dvb->demux.start_feed = start_feed;
dvb->demux.stop_feed = stop_feed;
result = dvb_dmx_init(&dvb->demux);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
dev->name, result);
goto fail_dmx;
}
dvb->dmxdev.filternum = 256;
dvb->dmxdev.demux = &dvb->demux.dmx;
dvb->dmxdev.capabilities = 0;
result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
if (result < 0) {
printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
dev->name, result);
goto fail_dmxdev;
}
dvb->fe_hw.source = DMX_FRONTEND_0;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
dev->name, result);
goto fail_fe_hw;
}
dvb->fe_mem.source = DMX_MEMORY_FE;
result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
if (result < 0) {
printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
dev->name, result);
goto fail_fe_mem;
}
result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
if (result < 0) {
printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
dev->name, result);
goto fail_fe_conn;
}
/* register network adapter */
dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
return 0;
fail_fe_conn:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
fail_fe_mem:
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
fail_fe_hw:
dvb_dmxdev_release(&dvb->dmxdev);
fail_dmxdev:
dvb_dmx_release(&dvb->demux);
fail_dmx:
dvb_unregister_frontend(dvb->frontend);
fail_frontend:
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
fail_adapter:
return result;
}
static void unregister_dvb(struct em28xx_dvb *dvb)
{
dvb_net_release(&dvb->net);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
dvb_dmxdev_release(&dvb->dmxdev);
dvb_dmx_release(&dvb->demux);
dvb_unregister_frontend(dvb->frontend);
dvb_frontend_detach(dvb->frontend);
dvb_unregister_adapter(&dvb->adapter);
}
static int dvb_init(struct em28xx *dev)
{
int result = 0;
struct em28xx_dvb *dvb;
if (!dev->board.has_dvb) {
/* This device does not support the extension */
return 0;
}
dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
if (dvb == NULL) {
printk(KERN_INFO "em28xx_dvb: memory allocation failed\n");
return -ENOMEM;
}
dev->dvb = dvb;
em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
/* init frontend */
switch (dev->model) {
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
dvb->frontend = dvb_attach(lgdt330x_attach,
&em2880_lgdt3303_dev,
&dev->i2c_adap);
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
case EM2880_BOARD_KWORLD_DVB_310U:
dvb->frontend = dvb_attach(zl10353_attach,
&em28xx_zl10353_with_xc3028,
&dev->i2c_adap);
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
case EM2882_BOARD_TERRATEC_HYBRID_XS:
case EM2880_BOARD_EMPIRE_DUAL_TV:
dvb->frontend = dvb_attach(zl10353_attach,
&em28xx_zl10353_xc3028_no_i2c_gate,
&dev->i2c_adap);
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
case EM2880_BOARD_TERRATEC_HYBRID_XS:
case EM2881_BOARD_PINNACLE_HYBRID_PRO:
dvb->frontend = dvb_attach(zl10353_attach,
&em28xx_zl10353_xc3028_no_i2c_gate,
&dev->i2c_adap);
if (dvb->frontend == NULL) {
/* This board could have either a zl10353 or a mt352.
If the chip id isn't for zl10353, try mt352 */
dvb->frontend = dvb_attach(mt352_attach,
&terratec_xs_mt352_cfg,
&dev->i2c_adap);
}
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
case EM2883_BOARD_KWORLD_HYBRID_330U:
case EM2882_BOARD_EVGA_INDTUBE:
dvb->frontend = dvb_attach(s5h1409_attach,
&em28xx_s5h1409_with_xc3028,
&dev->i2c_adap);
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
case EM2882_BOARD_KWORLD_ATSC_315U:
dvb->frontend = dvb_attach(lgdt330x_attach,
&em2880_lgdt3303_dev,
&dev->i2c_adap);
if (dvb->frontend != NULL) {
if (!dvb_attach(simple_tuner_attach, dvb->frontend,
&dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
result = -EINVAL;
goto out_free;
}
}
break;
case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
#ifdef EM28XX_DRX397XD_SUPPORT
/* We don't have the config structure properly populated, so
this is commented out for now */
dvb->frontend = dvb_attach(drx397xD_attach,
&em28xx_drx397xD_with_xc3028,
&dev->i2c_adap);
if (attach_xc3028(0x61, dev) < 0) {
result = -EINVAL;
goto out_free;
}
break;
#endif
case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
/* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
dvb->frontend = dvb_attach(tda10023_attach,
&em28xx_tda10023_config,
&dev->i2c_adap, 0x48);
if (dvb->frontend) {
if (!dvb_attach(simple_tuner_attach, dvb->frontend,
&dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
result = -EINVAL;
goto out_free;
}
}
break;
default:
printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
" isn't supported yet\n",
dev->name);
break;
}
if (NULL == dvb->frontend) {
printk(KERN_ERR
"%s/2: frontend initialization failed\n",
dev->name);
result = -EINVAL;
goto out_free;
}
/* define general-purpose callback pointer */
dvb->frontend->callback = em28xx_tuner_callback;
/* register everything */
result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
if (result < 0)
goto out_free;
em28xx_set_mode(dev, EM28XX_SUSPEND);
printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
return 0;
out_free:
em28xx_set_mode(dev, EM28XX_SUSPEND);
kfree(dvb);
dev->dvb = NULL;
return result;
}
static int dvb_fini(struct em28xx *dev)
{
if (!dev->board.has_dvb) {
/* This device does not support the extension */
return 0;
}
if (dev->dvb) {
unregister_dvb(dev->dvb);
dev->dvb = NULL;
}
return 0;
}
static struct em28xx_ops dvb_ops = {
.id = EM28XX_DVB,
.name = "Em28xx dvb Extension",
.init = dvb_init,
.fini = dvb_fini,
};
static int __init em28xx_dvb_register(void)
{
return em28xx_register_extension(&dvb_ops);
}
static void __exit em28xx_dvb_unregister(void)
{
em28xx_unregister_extension(&dvb_ops);
}
module_init(em28xx_dvb_register);
module_exit(em28xx_dvb_unregister);
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