From dfbdce04905d3196c828ca36f01ef06e6fdb2428 Mon Sep 17 00:00:00 2001 From: Timothy Lee Date: Sat, 9 Aug 2008 13:36:51 -0300 Subject: [PATCH] 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 Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/cxusb.c | 286 ++++++++++++++ drivers/media/dvb/dvb-usb/dvb-usb-ids.h | 2 + drivers/media/dvb/frontends/Kconfig | 7 + drivers/media/dvb/frontends/Makefile | 1 + drivers/media/dvb/frontends/lgs8gl5.c | 480 ++++++++++++++++++++++++ drivers/media/dvb/frontends/lgs8gl5.h | 45 +++ 6 files changed, 821 insertions(+) create mode 100644 drivers/media/dvb/frontends/lgs8gl5.c create mode 100644 drivers/media/dvb/frontends/lgs8gl5.h diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c index 338c819ca739..bffb44380389 100644 --- a/drivers/media/dvb/dvb-usb/cxusb.c +++ b/drivers/media/dvb/dvb-usb/cxusb.c @@ -38,6 +38,7 @@ #include "mxl5005s.h" #include "dib7000p.h" #include "dib0070.h" +#include "lgs8gl5.h" /* debug */ static int dvb_usb_cxusb_debug; @@ -111,6 +112,25 @@ static void cxusb_nano2_led(struct dvb_usb_device *d, int onoff) cxusb_bluebird_gpio_rw(d, 0x40, onoff ? 0 : 0x40); } +static int cxusb_d680_dmb_gpio_tuner(struct dvb_usb_device *d, + u8 addr, int onoff) +{ + u8 o[2] = {addr, onoff}; + u8 i; + int rc; + + rc = cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1); + + if (rc < 0) + return rc; + if (i == 0x01) + return 0; + else { + deb_info("gpio_write failed.\n"); + return -EIO; + } +} + /* I2C */ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) @@ -264,6 +284,20 @@ static int cxusb_nano2_power_ctrl(struct dvb_usb_device *d, int onoff) return rc; } +static int cxusb_d680_dmb_power_ctrl(struct dvb_usb_device *d, int onoff) +{ + int ret; + u8 b; + ret = cxusb_power_ctrl(d, onoff); + if (!onoff) + return ret; + + msleep(128); + cxusb_ctrl_msg(d, CMD_DIGITAL, NULL, 0, &b, 1); + msleep(100); + return ret; +} + static int cxusb_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) { u8 buf[2] = { 0x03, 0x00 }; @@ -285,6 +319,67 @@ static int cxusb_aver_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) return 0; } +static void cxusb_d680_dmb_drain_message(struct dvb_usb_device *d) +{ + int ep = d->props.generic_bulk_ctrl_endpoint; + const int timeout = 100; + const int junk_len = 32; + u8 *junk; + int rd_count; + + /* Discard remaining data in video pipe */ + junk = kmalloc(junk_len, GFP_KERNEL); + if (!junk) + return; + while (1) { + if (usb_bulk_msg(d->udev, + usb_rcvbulkpipe(d->udev, ep), + junk, junk_len, &rd_count, timeout) < 0) + break; + if (!rd_count) + break; + } + kfree(junk); +} + +static void cxusb_d680_dmb_drain_video(struct dvb_usb_device *d) +{ + struct usb_data_stream_properties *p = &d->props.adapter[0].stream; + const int timeout = 100; + const int junk_len = p->u.bulk.buffersize; + u8 *junk; + int rd_count; + + /* Discard remaining data in video pipe */ + junk = kmalloc(junk_len, GFP_KERNEL); + if (!junk) + return; + while (1) { + if (usb_bulk_msg(d->udev, + usb_rcvbulkpipe(d->udev, p->endpoint), + junk, junk_len, &rd_count, timeout) < 0) + break; + if (!rd_count) + break; + } + kfree(junk); +} + +static int cxusb_d680_dmb_streaming_ctrl( + struct dvb_usb_adapter *adap, int onoff) +{ + if (onoff) { + u8 buf[2] = { 0x03, 0x00 }; + cxusb_d680_dmb_drain_video(adap->dev); + return cxusb_ctrl_msg(adap->dev, CMD_STREAMING_ON, + buf, sizeof(buf), NULL, 0); + } else { + int ret = cxusb_ctrl_msg(adap->dev, + CMD_STREAMING_OFF, NULL, 0, NULL, 0); + return ret; + } +} + static int cxusb_rc_query(struct dvb_usb_device *d, u32 *event, int *state) { struct dvb_usb_rc_key *keymap = d->props.rc_key_map; @@ -337,6 +432,32 @@ static int cxusb_bluebird2_rc_query(struct dvb_usb_device *d, u32 *event, return 0; } +static int cxusb_d680_dmb_rc_query(struct dvb_usb_device *d, u32 *event, + int *state) +{ + struct dvb_usb_rc_key *keymap = d->props.rc_key_map; + u8 ircode[2]; + int i; + + *event = 0; + *state = REMOTE_NO_KEY_PRESSED; + + if (cxusb_ctrl_msg(d, 0x10, NULL, 0, ircode, 2) < 0) + return 0; + + for (i = 0; i < d->props.rc_key_map_size; i++) { + if (keymap[i].custom == ircode[0] && + keymap[i].data == ircode[1]) { + *event = keymap[i].event; + *state = REMOTE_KEY_PRESSED; + + return 0; + } + } + + return 0; +} + static struct dvb_usb_rc_key dvico_mce_rc_keys[] = { { 0xfe, 0x02, KEY_TV }, { 0xfe, 0x0e, KEY_MP3 }, @@ -424,6 +545,44 @@ static struct dvb_usb_rc_key dvico_portable_rc_keys[] = { { 0xfc, 0x00, KEY_UNKNOWN }, /* HD */ }; +static struct dvb_usb_rc_key d680_dmb_rc_keys[] = { + { 0x00, 0x38, KEY_UNKNOWN }, /* TV/AV */ + { 0x08, 0x0c, KEY_ZOOM }, + { 0x08, 0x00, KEY_0 }, + { 0x00, 0x01, KEY_1 }, + { 0x08, 0x02, KEY_2 }, + { 0x00, 0x03, KEY_3 }, + { 0x08, 0x04, KEY_4 }, + { 0x00, 0x05, KEY_5 }, + { 0x08, 0x06, KEY_6 }, + { 0x00, 0x07, KEY_7 }, + { 0x08, 0x08, KEY_8 }, + { 0x00, 0x09, KEY_9 }, + { 0x00, 0x0a, KEY_MUTE }, + { 0x08, 0x29, KEY_BACK }, + { 0x00, 0x12, KEY_CHANNELUP }, + { 0x08, 0x13, KEY_CHANNELDOWN }, + { 0x00, 0x2b, KEY_VOLUMEUP }, + { 0x08, 0x2c, KEY_VOLUMEDOWN }, + { 0x00, 0x20, KEY_UP }, + { 0x08, 0x21, KEY_DOWN }, + { 0x00, 0x11, KEY_LEFT }, + { 0x08, 0x10, KEY_RIGHT }, + { 0x00, 0x0d, KEY_OK }, + { 0x08, 0x1f, KEY_RECORD }, + { 0x00, 0x17, KEY_PLAYPAUSE }, + { 0x08, 0x16, KEY_PLAYPAUSE }, + { 0x00, 0x0b, KEY_STOP }, + { 0x08, 0x27, KEY_FASTFORWARD }, + { 0x00, 0x26, KEY_REWIND }, + { 0x08, 0x1e, KEY_UNKNOWN }, /* Time Shift */ + { 0x00, 0x0e, KEY_UNKNOWN }, /* Snapshot */ + { 0x08, 0x2d, KEY_UNKNOWN }, /* Mouse Cursor */ + { 0x00, 0x0f, KEY_UNKNOWN }, /* Minimize/Maximize */ + { 0x08, 0x14, KEY_UNKNOWN }, /* Shuffle */ + { 0x00, 0x25, KEY_POWER }, +}; + static int cxusb_dee1601_demod_init(struct dvb_frontend* fe) { static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x28 }; @@ -529,6 +688,24 @@ static struct mxl5005s_config aver_a868r_tuner = { .AgcMasterByte = 0x00, }; +/* FIXME: needs tweaking */ +static struct mxl5005s_config d680_dmb_tuner = { + .i2c_address = 0x63, + .if_freq = 36125000UL, + .xtal_freq = CRYSTAL_FREQ_16000000HZ, + .agc_mode = MXL_SINGLE_AGC, + .tracking_filter = MXL_TF_C, + .rssi_enable = MXL_RSSI_ENABLE, + .cap_select = MXL_CAP_SEL_ENABLE, + .div_out = MXL_DIV_OUT_4, + .clock_out = MXL_CLOCK_OUT_DISABLE, + .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM, + .top = MXL5005S_TOP_25P2, + .mod_mode = MXL_DIGITAL_MODE, + .if_mode = MXL_ZERO_IF, + .AgcMasterByte = 0x00, +}; + /* Callbacks for DVB USB */ static int cxusb_fmd1216me_tuner_attach(struct dvb_usb_adapter *adap) { @@ -617,6 +794,14 @@ static int cxusb_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap) return 0; } +static int cxusb_d680_dmb_tuner_attach(struct dvb_usb_adapter *adap) +{ + struct dvb_frontend *fe; + fe = dvb_attach(mxl5005s_attach, adap->fe, + &adap->dev->i2c_adap, &d680_dmb_tuner); + return (fe == NULL) ? -EIO : 0; +} + static int cxusb_cx22702_frontend_attach(struct dvb_usb_adapter *adap) { u8 b; @@ -906,6 +1091,54 @@ static int cxusb_nano2_frontend_attach(struct dvb_usb_adapter *adap) return -EIO; } +static struct lgs8gl5_config lgs8gl5_cfg = { + .demod_address = 0x19, +}; + +static int cxusb_d680_dmb_frontend_attach(struct dvb_usb_adapter *adap) +{ + struct dvb_usb_device *d = adap->dev; + int n; + + /* Select required USB configuration */ + if (usb_set_interface(d->udev, 0, 0) < 0) + err("set interface failed"); + + /* Unblock all USB pipes */ + usb_clear_halt(d->udev, + usb_sndbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint)); + usb_clear_halt(d->udev, + usb_rcvbulkpipe(d->udev, d->props.generic_bulk_ctrl_endpoint)); + usb_clear_halt(d->udev, + usb_rcvbulkpipe(d->udev, d->props.adapter[0].stream.endpoint)); + + /* Drain USB pipes to avoid hang after reboot */ + for (n = 0; n < 5; n++) { + cxusb_d680_dmb_drain_message(d); + cxusb_d680_dmb_drain_video(d); + msleep(200); + } + + /* Reset the tuner */ + if (cxusb_d680_dmb_gpio_tuner(d, 0x07, 0) < 0) { + err("clear tuner gpio failed"); + return -EIO; + } + msleep(100); + if (cxusb_d680_dmb_gpio_tuner(d, 0x07, 1) < 0) { + err("set tuner gpio failed"); + return -EIO; + } + msleep(100); + + /* Attach frontend */ + adap->fe = dvb_attach(lgs8gl5_attach, &lgs8gl5_cfg, &d->i2c_adap); + if (adap->fe == NULL) + return -EIO; + + return 0; +} + /* * DViCO has shipped two devices with the same USB ID, but only one of them * needs a firmware download. Check the device class details to see if they @@ -985,6 +1218,7 @@ static struct dvb_usb_device_properties cxusb_bluebird_dualdig4_rev2_properties; static struct dvb_usb_device_properties cxusb_bluebird_nano2_properties; static struct dvb_usb_device_properties cxusb_bluebird_nano2_needsfirmware_properties; static struct dvb_usb_device_properties cxusb_aver_a868r_properties; +static struct dvb_usb_device_properties cxusb_d680_dmb_properties; static int cxusb_probe(struct usb_interface *intf, const struct usb_device_id *id) @@ -1011,6 +1245,8 @@ static int cxusb_probe(struct usb_interface *intf, 0 == dvb_usb_device_init(intf, &cxusb_bluebird_dualdig4_rev2_properties, THIS_MODULE, NULL, adapter_nr) || + 0 == dvb_usb_device_init(intf, &cxusb_d680_dmb_properties, + THIS_MODULE, NULL, adapter_nr) || 0) return 0; @@ -1036,6 +1272,7 @@ static struct usb_device_id cxusb_table [] = { { USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DVB_T_NANO_2_NFW_WARM) }, { USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_VOLAR_A868R) }, { USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DUAL_4_REV_2) }, + { USB_DEVICE(USB_VID_CONEXANT, USB_PID_CONEXANT_D680_DMB) }, {} /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, cxusb_table); @@ -1530,6 +1767,55 @@ struct dvb_usb_device_properties cxusb_bluebird_dualdig4_rev2_properties = { } }; +static struct dvb_usb_device_properties cxusb_d680_dmb_properties = { + .caps = DVB_USB_IS_AN_I2C_ADAPTER, + + .usb_ctrl = CYPRESS_FX2, + + .size_of_priv = sizeof(struct cxusb_state), + + .num_adapters = 1, + .adapter = { + { + .streaming_ctrl = cxusb_d680_dmb_streaming_ctrl, + .frontend_attach = cxusb_d680_dmb_frontend_attach, + .tuner_attach = cxusb_d680_dmb_tuner_attach, + + /* parameter for the MPEG2-data transfer */ + .stream = { + .type = USB_BULK, + .count = 5, + .endpoint = 0x02, + .u = { + .bulk = { + .buffersize = 8192, + } + } + }, + }, + }, + + .power_ctrl = cxusb_d680_dmb_power_ctrl, + + .i2c_algo = &cxusb_i2c_algo, + + .generic_bulk_ctrl_endpoint = 0x01, + + .rc_interval = 100, + .rc_key_map = d680_dmb_rc_keys, + .rc_key_map_size = ARRAY_SIZE(d680_dmb_rc_keys), + .rc_query = cxusb_d680_dmb_rc_query, + + .num_device_descs = 1, + .devices = { + { + "Conexant DMB-TH Stick", + { NULL }, + { &cxusb_table[18], NULL }, + }, + } +}; + static struct usb_driver cxusb_driver = { .name = "dvb_usb_cxusb", .probe = cxusb_probe, diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h index f327a154b6c6..81369b79e75a 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h +++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h @@ -22,6 +22,7 @@ #define USB_VID_AVERMEDIA 0x07ca #define USB_VID_COMPRO 0x185b #define USB_VID_COMPRO_UNK 0x145f +#define USB_VID_CONEXANT 0x0572 #define USB_VID_CYPRESS 0x04b4 #define USB_VID_DIBCOM 0x10b8 #define USB_VID_DPOSH 0x1498 @@ -69,6 +70,7 @@ #define USB_PID_COMPRO_DVBU2000_UNK_WARM 0x010d #define USB_PID_COMPRO_VIDEOMATE_U500 0x1e78 #define USB_PID_COMPRO_VIDEOMATE_U500_PC 0x1e80 +#define USB_PID_CONEXANT_D680_DMB 0x86d6 #define USB_PID_DIBCOM_HOOK_DEFAULT 0x0064 #define USB_PID_DIBCOM_HOOK_DEFAULT_REENUM 0x0065 #define USB_PID_DIBCOM_MOD3000_COLD 0x0bb8 diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index 7dbb4a223c99..774f5c2a71e8 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -385,4 +385,11 @@ config DVB_ISL6421 help An SEC control chip. +config DVB_LGS8GL5 + tristate "Silicon Legend LGS-8GL5 demodulator (OFDM)" + depends on DVB_CORE && I2C + default m if DVB_FE_CUSTOMISE + help + A DMB-TH tuner module. Say Y when you want to support this frontend. + endmenu diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 028da55611c0..262eaa429f5d 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -48,3 +48,4 @@ obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o obj-$(CONFIG_DVB_AU8522) += au8522.o obj-$(CONFIG_DVB_TDA10048) += tda10048.o obj-$(CONFIG_DVB_S5H1411) += s5h1411.o +obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o diff --git a/drivers/media/dvb/frontends/lgs8gl5.c b/drivers/media/dvb/frontends/lgs8gl5.c new file mode 100644 index 000000000000..c0a223d28b0f --- /dev/null +++ b/drivers/media/dvb/frontends/lgs8gl5.c @@ -0,0 +1,480 @@ +/* + Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver + + Copyright (C) 2008 Sirius International (Hong Kong) Limited + Timothy Lee + + 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 +#include +#include +#include +#include +#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"); diff --git a/drivers/media/dvb/frontends/lgs8gl5.h b/drivers/media/dvb/frontends/lgs8gl5.h new file mode 100644 index 000000000000..d14176787a7d --- /dev/null +++ b/drivers/media/dvb/frontends/lgs8gl5.h @@ -0,0 +1,45 @@ +/* + Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver + + Copyright (C) 2008 Sirius International (Hong Kong) Limited + Timothy Lee + + 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 + +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 */ -- 2.34.1