forked from luck/tmp_suning_uos_patched
V4L/DVB (8657): cxusb: add lgs8gl5 and support for Magic-Pro DMB-TH usb stick
Add support for Magic-Pro DMB-TH usb stick. DMB-TH is the HDTV broadcast standard used in Hong Kong and China. [...] I've also attached a second patch against the dvb-apps repository which adds a DMB-TH scan file for Hong Kong. Since the ProHDTV stick contains a DMB-TH decoder (lgs8gl5) onboard, it outputs MPEG-TS to the PC. Signed-off-by: Timothy Lee <timothy.lee@siriushk.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Timothy Lee
Mauro Carvalho Chehab
parent
2e06d2ff54
commit
dfbdce0490
@ -38,6 +38,7 @@
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#include "mxl5005s.h"
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#include "dib7000p.h"
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#include "dib0070.h"
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#include "lgs8gl5.h"
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/* debug */
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static int dvb_usb_cxusb_debug;
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@ -111,6 +112,25 @@ static void cxusb_nano2_led(struct dvb_usb_device *d, int onoff)
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cxusb_bluebird_gpio_rw(d, 0x40, onoff ? 0 : 0x40);
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}
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static int cxusb_d680_dmb_gpio_tuner(struct dvb_usb_device *d,
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u8 addr, int onoff)
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{
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u8 o[2] = {addr, onoff};
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u8 i;
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int rc;
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rc = cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1);
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if (rc < 0)
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return rc;
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if (i == 0x01)
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return 0;
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else {
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deb_info("gpio_write failed.\n");
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return -EIO;
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}
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}
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/* I2C */
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static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
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int num)
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@ -264,6 +284,20 @@ static int cxusb_nano2_power_ctrl(struct dvb_usb_device *d, int onoff)
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return rc;
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}
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static int cxusb_d680_dmb_power_ctrl(struct dvb_usb_device *d, int onoff)
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{
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int ret;
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u8 b;
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ret = cxusb_power_ctrl(d, onoff);
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if (!onoff)
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return ret;
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msleep(128);
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cxusb_ctrl_msg(d, CMD_DIGITAL, NULL, 0, &b, 1);
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msleep(100);
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return ret;
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}
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static int cxusb_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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{
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u8 buf[2] = { 0x03, 0x00 };
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@ -285,6 +319,67 @@ static int cxusb_aver_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
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return 0;
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}
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static void cxusb_d680_dmb_drain_message(struct dvb_usb_device *d)
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{
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int ep = d->props.generic_bulk_ctrl_endpoint;
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const int timeout = 100;
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const int junk_len = 32;
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u8 *junk;
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int rd_count;
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/* Discard remaining data in video pipe */
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junk = kmalloc(junk_len, GFP_KERNEL);
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if (!junk)
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return;
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while (1) {
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if (usb_bulk_msg(d->udev,
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usb_rcvbulkpipe(d->udev, ep),
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junk, junk_len, &rd_count, timeout) < 0)
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break;
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if (!rd_count)
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break;
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}
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kfree(junk);
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}
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static void cxusb_d680_dmb_drain_video(struct dvb_usb_device *d)
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{
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struct usb_data_stream_properties *p = &d->props.adapter[0].stream;
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const int timeout = 100;
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const int junk_len = p->u.bulk.buffersize;
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u8 *junk;
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int rd_count;
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/* Discard remaining data in video pipe */
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junk = kmalloc(junk_len, GFP_KERNEL);
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if (!junk)
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return;
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while (1) {
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if (usb_bulk_msg(d->udev,
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usb_rcvbulkpipe(d->udev, p->endpoint),
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junk, junk_len, &rd_count, timeout) < 0)
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break;
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if (!rd_count)
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break;
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}
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kfree(junk);
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}
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static int cxusb_d680_dmb_streaming_ctrl(
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struct dvb_usb_adapter *adap, int onoff)
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{
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if (onoff) {
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u8 buf[2] = { 0x03, 0x00 };
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cxusb_d680_dmb_drain_video(adap->dev);
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return cxusb_ctrl_msg(adap->dev, CMD_STREAMING_ON,
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buf, sizeof(buf), NULL, 0);
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} else {
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int ret = cxusb_ctrl_msg(adap->dev,
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CMD_STREAMING_OFF, NULL, 0, NULL, 0);
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return ret;
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}
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}
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static int cxusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
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{
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struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
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@ -337,6 +432,32 @@ static int cxusb_bluebird2_rc_query(struct dvb_usb_device *d, u32 *event,
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return 0;
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}
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static int cxusb_d680_dmb_rc_query(struct dvb_usb_device *d, u32 *event,
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int *state)
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{
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struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
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u8 ircode[2];
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int i;
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*event = 0;
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*state = REMOTE_NO_KEY_PRESSED;
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if (cxusb_ctrl_msg(d, 0x10, NULL, 0, ircode, 2) < 0)
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return 0;
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for (i = 0; i < d->props.rc_key_map_size; i++) {
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if (keymap[i].custom == ircode[0] &&
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keymap[i].data == ircode[1]) {
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*event = keymap[i].event;
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*state = REMOTE_KEY_PRESSED;
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return 0;
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}
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}
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return 0;
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}
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static struct dvb_usb_rc_key dvico_mce_rc_keys[] = {
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{ 0xfe, 0x02, KEY_TV },
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{ 0xfe, 0x0e, KEY_MP3 },
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@ -424,6 +545,44 @@ static struct dvb_usb_rc_key dvico_portable_rc_keys[] = {
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{ 0xfc, 0x00, KEY_UNKNOWN }, /* HD */
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};
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static struct dvb_usb_rc_key d680_dmb_rc_keys[] = {
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{ 0x00, 0x38, KEY_UNKNOWN }, /* TV/AV */
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{ 0x08, 0x0c, KEY_ZOOM },
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{ 0x08, 0x00, KEY_0 },
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{ 0x00, 0x01, KEY_1 },
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{ 0x08, 0x02, KEY_2 },
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{ 0x00, 0x03, KEY_3 },
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{ 0x08, 0x04, KEY_4 },
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{ 0x00, 0x05, KEY_5 },
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{ 0x08, 0x06, KEY_6 },
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{ 0x00, 0x07, KEY_7 },
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{ 0x08, 0x08, KEY_8 },
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{ 0x00, 0x09, KEY_9 },
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{ 0x00, 0x0a, KEY_MUTE },
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{ 0x08, 0x29, KEY_BACK },
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{ 0x00, 0x12, KEY_CHANNELUP },
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{ 0x08, 0x13, KEY_CHANNELDOWN },
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{ 0x00, 0x2b, KEY_VOLUMEUP },
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{ 0x08, 0x2c, KEY_VOLUMEDOWN },
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{ 0x00, 0x20, KEY_UP },
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{ 0x08, 0x21, KEY_DOWN },
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{ 0x00, 0x11, KEY_LEFT },
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{ 0x08, 0x10, KEY_RIGHT },
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{ 0x00, 0x0d, KEY_OK },
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{ 0x08, 0x1f, KEY_RECORD },
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{ 0x00, 0x17, KEY_PLAYPAUSE },
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{ 0x08, 0x16, KEY_PLAYPAUSE },
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{ 0x00, 0x0b, KEY_STOP },
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{ 0x08, 0x27, KEY_FASTFORWARD },
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{ 0x00, 0x26, KEY_REWIND },
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{ 0x08, 0x1e, KEY_UNKNOWN }, /* Time Shift */
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{ 0x00, 0x0e, KEY_UNKNOWN }, /* Snapshot */
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{ 0x08, 0x2d, KEY_UNKNOWN }, /* Mouse Cursor */
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{ 0x00, 0x0f, KEY_UNKNOWN }, /* Minimize/Maximize */
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{ 0x08, 0x14, KEY_UNKNOWN }, /* Shuffle */
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{ 0x00, 0x25, KEY_POWER },
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};
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static int cxusb_dee1601_demod_init(struct dvb_frontend* fe)
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{
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static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x28 };
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@ -529,6 +688,24 @@ static struct mxl5005s_config aver_a868r_tuner = {
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.AgcMasterByte = 0x00,
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};
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/* FIXME: needs tweaking */
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static struct mxl5005s_config d680_dmb_tuner = {
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.i2c_address = 0x63,
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.if_freq = 36125000UL,
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.xtal_freq = CRYSTAL_FREQ_16000000HZ,
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.agc_mode = MXL_SINGLE_AGC,
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.tracking_filter = MXL_TF_C,
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.rssi_enable = MXL_RSSI_ENABLE,
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.cap_select = MXL_CAP_SEL_ENABLE,
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.div_out = MXL_DIV_OUT_4,
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.clock_out = MXL_CLOCK_OUT_DISABLE,
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.output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
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.top = MXL5005S_TOP_25P2,
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.mod_mode = MXL_DIGITAL_MODE,
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.if_mode = MXL_ZERO_IF,
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.AgcMasterByte = 0x00,
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};
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/* Callbacks for DVB USB */
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static int cxusb_fmd1216me_tuner_attach(struct dvb_usb_adapter *adap)
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{
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@ -617,6 +794,14 @@ static int cxusb_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
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return 0;
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}
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static int cxusb_d680_dmb_tuner_attach(struct dvb_usb_adapter *adap)
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{
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struct dvb_frontend *fe;
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fe = dvb_attach(mxl5005s_attach, adap->fe,
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&adap->dev->i2c_adap, &d680_dmb_tuner);
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return (fe == NULL) ? -EIO : 0;
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}
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static int cxusb_cx22702_frontend_attach(struct dvb_usb_adapter *adap)
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{
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u8 b;
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@ -906,6 +1091,54 @@ static int cxusb_nano2_frontend_attach(struct dvb_usb_adapter *adap)
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return -EIO;
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}
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static struct lgs8gl5_config lgs8gl5_cfg = {
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.demod_address = 0x19,
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};
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static int cxusb_d680_dmb_frontend_attach(struct dvb_usb_adapter *adap)
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{
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struct dvb_usb_device *d = adap->dev;
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int n;
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/* Select required USB configuration */
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if (usb_set_interface(d->udev, 0, 0) < 0)
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err("set interface failed");
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/* Unblock all USB pipes */
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usb_clear_halt(d->udev,
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usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
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usb_clear_halt(d->udev,
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usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint));
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usb_clear_halt(d->udev,
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usb_rcvbulkpipe(d->udev, d->props.adapter[0].stream.endpoint));
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/* Drain USB pipes to avoid hang after reboot */
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for (n = 0; n < 5; n++) {
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cxusb_d680_dmb_drain_message(d);
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cxusb_d680_dmb_drain_video(d);
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msleep(200);
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}
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/* Reset the tuner */
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if (cxusb_d680_dmb_gpio_tuner(d, 0x07, 0) < 0) {
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err("clear tuner gpio failed");
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return -EIO;
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}
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msleep(100);
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if (cxusb_d680_dmb_gpio_tuner(d, 0x07, 1) < 0) {
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err("set tuner gpio failed");
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return -EIO;
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}
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msleep(100);
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/* Attach frontend */
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adap->fe = dvb_attach(lgs8gl5_attach, &lgs8gl5_cfg, &d->i2c_adap);
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if (adap->fe == NULL)
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return -EIO;
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return 0;
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}
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/*
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* DViCO has shipped two devices with the same USB ID, but only one of them
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* needs a firmware download. Check the device class details to see if they
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@ -985,6 +1218,7 @@ static struct dvb_usb_device_properties cxusb_bluebird_dualdig4_rev2_properties;
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static struct dvb_usb_device_properties cxusb_bluebird_nano2_properties;
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static struct dvb_usb_device_properties cxusb_bluebird_nano2_needsfirmware_properties;
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static struct dvb_usb_device_properties cxusb_aver_a868r_properties;
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static struct dvb_usb_device_properties cxusb_d680_dmb_properties;
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static int cxusb_probe(struct usb_interface *intf,
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const struct usb_device_id *id)
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@ -1011,6 +1245,8 @@ static int cxusb_probe(struct usb_interface *intf,
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0 == dvb_usb_device_init(intf,
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&cxusb_bluebird_dualdig4_rev2_properties,
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THIS_MODULE, NULL, adapter_nr) ||
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0 == dvb_usb_device_init(intf, &cxusb_d680_dmb_properties,
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THIS_MODULE, NULL, adapter_nr) ||
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0)
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return 0;
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@ -1036,6 +1272,7 @@ static struct usb_device_id cxusb_table [] = {
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{ USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DVB_T_NANO_2_NFW_WARM) },
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{ USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_VOLAR_A868R) },
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{ USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DUAL_4_REV_2) },
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{ USB_DEVICE(USB_VID_CONEXANT, USB_PID_CONEXANT_D680_DMB) },
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{} /* Terminating entry */
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};
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MODULE_DEVICE_TABLE (usb, cxusb_table);
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@ -1530,6 +1767,55 @@ struct dvb_usb_device_properties cxusb_bluebird_dualdig4_rev2_properties = {
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}
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};
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static struct dvb_usb_device_properties cxusb_d680_dmb_properties = {
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.caps = DVB_USB_IS_AN_I2C_ADAPTER,
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.usb_ctrl = CYPRESS_FX2,
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.size_of_priv = sizeof(struct cxusb_state),
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.num_adapters = 1,
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.adapter = {
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{
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.streaming_ctrl = cxusb_d680_dmb_streaming_ctrl,
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.frontend_attach = cxusb_d680_dmb_frontend_attach,
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.tuner_attach = cxusb_d680_dmb_tuner_attach,
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/* parameter for the MPEG2-data transfer */
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.stream = {
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.type = USB_BULK,
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.count = 5,
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.endpoint = 0x02,
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.u = {
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.bulk = {
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.buffersize = 8192,
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}
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}
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},
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},
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},
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.power_ctrl = cxusb_d680_dmb_power_ctrl,
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.i2c_algo = &cxusb_i2c_algo,
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.generic_bulk_ctrl_endpoint = 0x01,
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.rc_interval = 100,
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.rc_key_map = d680_dmb_rc_keys,
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.rc_key_map_size = ARRAY_SIZE(d680_dmb_rc_keys),
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.rc_query = cxusb_d680_dmb_rc_query,
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.num_device_descs = 1,
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.devices = {
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{
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"Conexant DMB-TH Stick",
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{ NULL },
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{ &cxusb_table[18], NULL },
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},
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}
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};
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static struct usb_driver cxusb_driver = {
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.name = "dvb_usb_cxusb",
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.probe = cxusb_probe,
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@ -22,6 +22,7 @@
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#define USB_VID_AVERMEDIA 0x07ca
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#define USB_VID_COMPRO 0x185b
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#define USB_VID_COMPRO_UNK 0x145f
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#define USB_VID_CONEXANT 0x0572
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#define USB_VID_CYPRESS 0x04b4
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#define USB_VID_DIBCOM 0x10b8
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#define USB_VID_DPOSH 0x1498
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@ -69,6 +70,7 @@
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#define USB_PID_COMPRO_DVBU2000_UNK_WARM 0x010d
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#define USB_PID_COMPRO_VIDEOMATE_U500 0x1e78
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#define USB_PID_COMPRO_VIDEOMATE_U500_PC 0x1e80
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#define USB_PID_CONEXANT_D680_DMB 0x86d6
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#define USB_PID_DIBCOM_HOOK_DEFAULT 0x0064
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#define USB_PID_DIBCOM_HOOK_DEFAULT_REENUM 0x0065
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#define USB_PID_DIBCOM_MOD3000_COLD 0x0bb8
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@ -385,4 +385,11 @@ config DVB_ISL6421
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help
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An SEC control chip.
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config DVB_LGS8GL5
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tristate "Silicon Legend LGS-8GL5 demodulator (OFDM)"
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depends on DVB_CORE && I2C
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default m if DVB_FE_CUSTOMISE
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help
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A DMB-TH tuner module. Say Y when you want to support this frontend.
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endmenu
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@ -48,3 +48,4 @@ obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o
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obj-$(CONFIG_DVB_AU8522) += au8522.o
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obj-$(CONFIG_DVB_TDA10048) += tda10048.o
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obj-$(CONFIG_DVB_S5H1411) += s5h1411.o
|
||||
obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o
|
||||
|
||||
480
drivers/media/dvb/frontends/lgs8gl5.c
Normal file
480
drivers/media/dvb/frontends/lgs8gl5.c
Normal file
@ -0,0 +1,480 @@
|
||||
/*
|
||||
Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
|
||||
|
||||
Copyright (C) 2008 Sirius International (Hong Kong) Limited
|
||||
Timothy Lee <timothy.lee@siriushk.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; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
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.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/slab.h>
|
||||
#include "dvb_frontend.h"
|
||||
#include "lgs8gl5.h"
|
||||
|
||||
|
||||
#define REG_RESET 0x02
|
||||
#define REG_RESET_OFF 0x01
|
||||
#define REG_03 0x03
|
||||
#define REG_04 0x04
|
||||
#define REG_07 0x07
|
||||
#define REG_09 0x09
|
||||
#define REG_0A 0x0a
|
||||
#define REG_0B 0x0b
|
||||
#define REG_0C 0x0c
|
||||
#define REG_37 0x37
|
||||
#define REG_STRENGTH 0x4b
|
||||
#define REG_STRENGTH_MASK 0x7f
|
||||
#define REG_STRENGTH_CARRIER 0x80
|
||||
#define REG_INVERSION 0x7c
|
||||
#define REG_INVERSION_ON 0x80
|
||||
#define REG_7D 0x7d
|
||||
#define REG_7E 0x7e
|
||||
#define REG_A2 0xa2
|
||||
#define REG_STATUS 0xa4
|
||||
#define REG_STATUS_SYNC 0x04
|
||||
#define REG_STATUS_LOCK 0x01
|
||||
|
||||
|
||||
struct lgs8gl5_state {
|
||||
struct i2c_adapter *i2c;
|
||||
const struct lgs8gl5_config *config;
|
||||
struct dvb_frontend frontend;
|
||||
};
|
||||
|
||||
|
||||
static int debug;
|
||||
#define dprintk(args...) \
|
||||
do { \
|
||||
if (debug) \
|
||||
printk(KERN_DEBUG "lgs8gl5: " args); \
|
||||
} while (0)
|
||||
|
||||
|
||||
/* Writes into demod's register */
|
||||
static int
|
||||
lgs8gl5_write_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
|
||||
{
|
||||
int ret;
|
||||
u8 buf[] = {reg, data};
|
||||
struct i2c_msg msg = {
|
||||
.addr = state->config->demod_address,
|
||||
.flags = 0,
|
||||
.buf = buf,
|
||||
.len = 2
|
||||
};
|
||||
|
||||
ret = i2c_transfer(state->i2c, &msg, 1);
|
||||
if (ret != 1)
|
||||
dprintk("%s: error (reg=0x%02x, val=0x%02x, ret=%i)\n",
|
||||
__func__, reg, data, ret);
|
||||
return (ret != 1) ? -1 : 0;
|
||||
}
|
||||
|
||||
|
||||
/* Reads from demod's register */
|
||||
static int
|
||||
lgs8gl5_read_reg(struct lgs8gl5_state *state, u8 reg)
|
||||
{
|
||||
int ret, j;
|
||||
u8 b0[] = {reg};
|
||||
u8 b1[] = {0};
|
||||
struct i2c_msg msg[2] = {
|
||||
{
|
||||
.addr = state->config->demod_address,
|
||||
.flags = 0,
|
||||
.buf = b0,
|
||||
.len = 1
|
||||
},
|
||||
{
|
||||
.addr = state->config->demod_address,
|
||||
.flags = I2C_M_RD,
|
||||
.buf = b1,
|
||||
.len = 1
|
||||
}
|
||||
};
|
||||
|
||||
ret = i2c_transfer(state->i2c, msg, 2);
|
||||
if (ret != 2)
|
||||
return -EIO;
|
||||
|
||||
return b1[0];
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_update_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
|
||||
{
|
||||
lgs8gl5_read_reg(state, reg);
|
||||
lgs8gl5_write_reg(state, reg, data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Writes into alternate device's register */
|
||||
/* TODO: Find out what that device is for! */
|
||||
static int
|
||||
lgs8gl5_update_alt_reg(struct lgs8gl5_state *state, u8 reg, u8 data)
|
||||
{
|
||||
int ret, j;
|
||||
u8 b0[] = {reg};
|
||||
u8 b1[] = {0};
|
||||
u8 b2[] = {reg, data};
|
||||
struct i2c_msg msg[3] = {
|
||||
{
|
||||
.addr = state->config->demod_address + 2,
|
||||
.flags = 0,
|
||||
.buf = b0,
|
||||
.len = 1
|
||||
},
|
||||
{
|
||||
.addr = state->config->demod_address + 2,
|
||||
.flags = I2C_M_RD,
|
||||
.buf = b1,
|
||||
.len = 1
|
||||
},
|
||||
{
|
||||
.addr = state->config->demod_address + 2,
|
||||
.flags = 0,
|
||||
.buf = b2,
|
||||
.len = 2
|
||||
},
|
||||
};
|
||||
|
||||
ret = i2c_transfer(state->i2c, msg, 3);
|
||||
return (ret != 3) ? -1 : 0;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
lgs8gl5_soft_reset(struct lgs8gl5_state *state)
|
||||
{
|
||||
u8 val;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
val = lgs8gl5_read_reg(state, REG_RESET);
|
||||
lgs8gl5_write_reg(state, REG_RESET, val & ~REG_RESET_OFF);
|
||||
lgs8gl5_write_reg(state, REG_RESET, val | REG_RESET_OFF);
|
||||
msleep(5);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_set_inversion(struct lgs8gl5_state *state, int inversion)
|
||||
{
|
||||
u8 val;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
switch (inversion) {
|
||||
case INVERSION_AUTO:
|
||||
return -EOPNOTSUPP;
|
||||
case INVERSION_ON:
|
||||
val = lgs8gl5_read_reg(state, REG_INVERSION);
|
||||
return lgs8gl5_write_reg(state, REG_INVERSION,
|
||||
val | REG_INVERSION_ON);
|
||||
case INVERSION_OFF:
|
||||
val = lgs8gl5_read_reg(state, REG_INVERSION);
|
||||
return lgs8gl5_write_reg(state, REG_INVERSION,
|
||||
val & ~REG_INVERSION_ON);
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Starts demodulation */
|
||||
static void
|
||||
lgs8gl5_start_demod(struct lgs8gl5_state *state)
|
||||
{
|
||||
u8 val;
|
||||
int n;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
|
||||
lgs8gl5_soft_reset(state);
|
||||
lgs8gl5_update_reg(state, REG_07, 0x10);
|
||||
lgs8gl5_update_reg(state, REG_07, 0x10);
|
||||
lgs8gl5_write_reg(state, REG_09, 0x0e);
|
||||
lgs8gl5_write_reg(state, REG_0A, 0xe5);
|
||||
lgs8gl5_write_reg(state, REG_0B, 0x35);
|
||||
lgs8gl5_write_reg(state, REG_0C, 0x30);
|
||||
|
||||
lgs8gl5_update_reg(state, REG_03, 0x00);
|
||||
lgs8gl5_update_reg(state, REG_7E, 0x01);
|
||||
lgs8gl5_update_alt_reg(state, 0xc5, 0x00);
|
||||
lgs8gl5_update_reg(state, REG_04, 0x02);
|
||||
lgs8gl5_update_reg(state, REG_37, 0x01);
|
||||
lgs8gl5_soft_reset(state);
|
||||
|
||||
/* Wait for carrier */
|
||||
for (n = 0; n < 10; n++) {
|
||||
val = lgs8gl5_read_reg(state, REG_STRENGTH);
|
||||
dprintk("Wait for carrier[%d] 0x%02X\n", n, val);
|
||||
if (val & REG_STRENGTH_CARRIER)
|
||||
break;
|
||||
msleep(4);
|
||||
}
|
||||
if (!(val & REG_STRENGTH_CARRIER))
|
||||
return;
|
||||
|
||||
/* Wait for lock */
|
||||
for (n = 0; n < 20; n++) {
|
||||
val = lgs8gl5_read_reg(state, REG_STATUS);
|
||||
dprintk("Wait for lock[%d] 0x%02X\n", n, val);
|
||||
if (val & REG_STATUS_LOCK)
|
||||
break;
|
||||
msleep(12);
|
||||
}
|
||||
if (!(val & REG_STATUS_LOCK))
|
||||
return;
|
||||
|
||||
lgs8gl5_write_reg(state, REG_7D, lgs8gl5_read_reg(state, REG_A2));
|
||||
lgs8gl5_soft_reset(state);
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_init(struct dvb_frontend *fe)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
lgs8gl5_update_alt_reg(state, 0xc2, 0x28);
|
||||
lgs8gl5_soft_reset(state);
|
||||
lgs8gl5_update_reg(state, REG_07, 0x10);
|
||||
lgs8gl5_update_reg(state, REG_07, 0x10);
|
||||
lgs8gl5_write_reg(state, REG_09, 0x0e);
|
||||
lgs8gl5_write_reg(state, REG_0A, 0xe5);
|
||||
lgs8gl5_write_reg(state, REG_0B, 0x35);
|
||||
lgs8gl5_write_reg(state, REG_0C, 0x30);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_read_status(struct dvb_frontend *fe, fe_status_t *status)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
|
||||
u8 flags = lgs8gl5_read_reg(state, REG_STATUS);
|
||||
|
||||
*status = 0;
|
||||
|
||||
if ((level & REG_STRENGTH_MASK) > 0)
|
||||
*status |= FE_HAS_SIGNAL;
|
||||
if (level & REG_STRENGTH_CARRIER)
|
||||
*status |= FE_HAS_CARRIER;
|
||||
if (flags & REG_STATUS_SYNC)
|
||||
*status |= FE_HAS_SYNC;
|
||||
if (flags & REG_STATUS_LOCK)
|
||||
*status |= FE_HAS_LOCK;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_read_ber(struct dvb_frontend *fe, u32 *ber)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
*ber = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_read_signal_strength(struct dvb_frontend *fe, u16 *signal_strength)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
|
||||
*signal_strength = (level & REG_STRENGTH_MASK) << 8;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_read_snr(struct dvb_frontend *fe, u16 *snr)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
u8 level = lgs8gl5_read_reg(state, REG_STRENGTH);
|
||||
*snr = (level & REG_STRENGTH_MASK) << 8;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
*ucblocks = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_set_frontend(struct dvb_frontend *fe,
|
||||
struct dvb_frontend_parameters *p)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
if (p->u.ofdm.bandwidth != BANDWIDTH_8_MHZ)
|
||||
return -EINVAL;
|
||||
|
||||
if (fe->ops.tuner_ops.set_params) {
|
||||
fe->ops.tuner_ops.set_params(fe, p);
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
}
|
||||
|
||||
/* lgs8gl5_set_inversion(state, p->inversion); */
|
||||
|
||||
lgs8gl5_start_demod(state);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_get_frontend(struct dvb_frontend *fe,
|
||||
struct dvb_frontend_parameters *p)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
u8 inv = lgs8gl5_read_reg(state, REG_INVERSION);
|
||||
struct dvb_ofdm_parameters *o = &p->u.ofdm;
|
||||
|
||||
p->inversion = (inv & REG_INVERSION_ON) ? INVERSION_ON : INVERSION_OFF;
|
||||
|
||||
o->code_rate_HP = FEC_1_2;
|
||||
o->code_rate_LP = FEC_7_8;
|
||||
o->guard_interval = GUARD_INTERVAL_1_32;
|
||||
o->transmission_mode = TRANSMISSION_MODE_2K;
|
||||
o->constellation = QAM_64;
|
||||
o->hierarchy_information = HIERARCHY_NONE;
|
||||
o->bandwidth = BANDWIDTH_8_MHZ;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
lgs8gl5_get_tune_settings(struct dvb_frontend *fe,
|
||||
struct dvb_frontend_tune_settings *fesettings)
|
||||
{
|
||||
fesettings->min_delay_ms = 240;
|
||||
fesettings->step_size = 0;
|
||||
fesettings->max_drift = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
lgs8gl5_release(struct dvb_frontend *fe)
|
||||
{
|
||||
struct lgs8gl5_state *state = fe->demodulator_priv;
|
||||
kfree(state);
|
||||
}
|
||||
|
||||
|
||||
static struct dvb_frontend_ops lgs8gl5_ops;
|
||||
|
||||
|
||||
struct dvb_frontend*
|
||||
lgs8gl5_attach(const struct lgs8gl5_config *config, struct i2c_adapter *i2c)
|
||||
{
|
||||
struct lgs8gl5_state *state = NULL;
|
||||
|
||||
dprintk("%s\n", __func__);
|
||||
|
||||
/* Allocate memory for the internal state */
|
||||
state = kmalloc(sizeof(struct lgs8gl5_state), GFP_KERNEL);
|
||||
if (state == NULL)
|
||||
goto error;
|
||||
|
||||
/* Setup the state */
|
||||
state->config = config;
|
||||
state->i2c = i2c;
|
||||
|
||||
/* Check if the demod is there */
|
||||
if (lgs8gl5_read_reg(state, REG_RESET) < 0)
|
||||
goto error;
|
||||
|
||||
/* Create dvb_frontend */
|
||||
memcpy(&state->frontend.ops, &lgs8gl5_ops,
|
||||
sizeof(struct dvb_frontend_ops));
|
||||
state->frontend.demodulator_priv = state;
|
||||
return &state->frontend;
|
||||
|
||||
error:
|
||||
kfree(state);
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL(lgs8gl5_attach);
|
||||
|
||||
|
||||
static struct dvb_frontend_ops lgs8gl5_ops = {
|
||||
.info = {
|
||||
.name = "Legend Silicon LGS-8GL5 DMB-TH",
|
||||
.type = FE_OFDM,
|
||||
.frequency_min = 474000000,
|
||||
.frequency_max = 858000000,
|
||||
.frequency_stepsize = 10000,
|
||||
.frequency_tolerance = 0,
|
||||
.caps = FE_CAN_FEC_AUTO |
|
||||
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_32 |
|
||||
FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
|
||||
FE_CAN_TRANSMISSION_MODE_AUTO |
|
||||
FE_CAN_BANDWIDTH_AUTO |
|
||||
FE_CAN_GUARD_INTERVAL_AUTO |
|
||||
FE_CAN_HIERARCHY_AUTO |
|
||||
FE_CAN_RECOVER
|
||||
},
|
||||
|
||||
.release = lgs8gl5_release,
|
||||
|
||||
.init = lgs8gl5_init,
|
||||
|
||||
.set_frontend = lgs8gl5_set_frontend,
|
||||
.get_frontend = lgs8gl5_get_frontend,
|
||||
.get_tune_settings = lgs8gl5_get_tune_settings,
|
||||
|
||||
.read_status = lgs8gl5_read_status,
|
||||
.read_ber = lgs8gl5_read_ber,
|
||||
.read_signal_strength = lgs8gl5_read_signal_strength,
|
||||
.read_snr = lgs8gl5_read_snr,
|
||||
.read_ucblocks = lgs8gl5_read_ucblocks,
|
||||
};
|
||||
|
||||
|
||||
module_param(debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
||||
|
||||
MODULE_DESCRIPTION("Legend Silicon LGS-8GL5 DMB-TH Demodulator driver");
|
||||
MODULE_AUTHOR("Timothy Lee");
|
||||
MODULE_LICENSE("GPL");
|
||||
45
drivers/media/dvb/frontends/lgs8gl5.h
Normal file
45
drivers/media/dvb/frontends/lgs8gl5.h
Normal file
@ -0,0 +1,45 @@
|
||||
/*
|
||||
Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
|
||||
|
||||
Copyright (C) 2008 Sirius International (Hong Kong) Limited
|
||||
Timothy Lee <timothy.lee@siriushk.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; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
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.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
*/
|
||||
|
||||
#ifndef LGS8GL5_H
|
||||
#define LGS8GL5_H
|
||||
|
||||
#include <linux/dvb/frontend.h>
|
||||
|
||||
struct lgs8gl5_config {
|
||||
/* the demodulator's i2c address */
|
||||
u8 demod_address;
|
||||
};
|
||||
|
||||
#if defined(CONFIG_DVB_LGS8GL5) || \
|
||||
(defined(CONFIG_DVB_LGS8GL5_MODULE) && defined(MODULE))
|
||||
extern struct dvb_frontend *lgs8gl5_attach(
|
||||
const struct lgs8gl5_config *config, struct i2c_adapter *i2c);
|
||||
#else
|
||||
static inline struct dvb_frontend *lgs8gl5_attach(
|
||||
const struct lgs8gl5_config *config, struct i2c_adapter *i2c) {
|
||||
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
|
||||
return NULL;
|
||||
}
|
||||
#endif /* CONFIG_DVB_LGS8GL5 */
|
||||
|
||||
#endif /* LGS8GL5_H */
|
||||
Loading…
Reference in New Issue
Block a user