Dear all,
Attached is a patch against v4l-dvb repository to add support for
Magic-Pro DMB-TH usb stick. DMB-TH is the HDTV broadcast standard used
in Hong Kong and China.
Regards,
Timothy Lee
diff -r fcf263987edf linux/drivers/media/dvb/dvb-usb/cxusb.c
--- a/linux/drivers/media/dvb/dvb-usb/cxusb.c Tue Aug 05 10:14:13 2008 -0300
+++ b/linux/drivers/media/dvb/dvb-usb/cxusb.c Fri Aug 08 16:17:41 2008 +0800
@@ -36,6 +36,7 @@
#include "tuner-xc2028.h"
#include "tuner-simple.h"
#include "mxl5005s.h"
+#include "lgs8gl5.h"
/* debug */
static int dvb_usb_cxusb_debug;
@@ -107,6 +108,24 @@ static void cxusb_nano2_led(struct dvb_u
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 */
@@ -262,6 +281,19 @@ static int cxusb_nano2_power_ctrl(struct
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 };
@@ -283,6 +315,65 @@ static int cxusb_aver_streaming_ctrl(str
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;
@@ -325,6 +416,32 @@ static int cxusb_bluebird2_rc_query(stru
for (i = 0; i < d->props.rc_key_map_size; i++) {
if (keymap[i].custom == ircode[1] &&
keymap[i].data == ircode[2]) {
+ *event = keymap[i].event;
+ *state = REMOTE_KEY_PRESSED;
+
+ return 0;
+ }
+ }
+
+ 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;
@@ -422,6 +539,44 @@ static struct dvb_usb_rc_key dvico_porta
{ 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 };
@@ -527,6 +682,24 @@ static struct mxl5005s_config aver_a868r
.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)
{
@@ -613,6 +786,14 @@ static int cxusb_mxl5003s_tuner_attach(s
dvb_attach(mxl5005s_attach, adap->fe,
&adap->dev->i2c_adap, &aver_a868r_tuner);
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)
@@ -751,6 +932,57 @@ static int cxusb_nano2_frontend_attach(s
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 */
+ if ((adap->fe = dvb_attach(lgs8gl5_attach, &lgs8gl5_cfg,
+ &d->i2c_adap)) != NULL)
+ return 0;
+
+ return -EIO;
+}
+
/*
* 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
@@ -829,6 +1061,7 @@ static struct dvb_usb_device_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)
@@ -852,6 +1085,8 @@ static int cxusb_probe(struct usb_interf
THIS_MODULE, NULL, adapter_nr) ||
0 == dvb_usb_device_init(intf, &cxusb_aver_a868r_properties,
THIS_MODULE, NULL, adapter_nr) ||
+ 0 == dvb_usb_device_init(intf, &cxusb_d680_dmb_properties,
+ THIS_MODULE, NULL, adapter_nr) ||
0)
return 0;
@@ -876,6 +1111,7 @@ static struct usb_device_id cxusb_table
{ USB_DEVICE(USB_VID_DVICO, USB_PID_DVICO_BLUEBIRD_DVB_T_NANO_2) },
{ 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_CONEXANT, USB_PID_CONEXANT_D680_DMB) },
{} /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, cxusb_table);
@@ -1321,6 +1557,54 @@ static struct dvb_usb_device_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[17], NULL },
+ },
+ }
+};
+
static struct usb_driver cxusb_driver = {
.name = "dvb_usb_cxusb",
.probe = cxusb_probe,
diff -r fcf263987edf linux/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
--- a/linux/drivers/media/dvb/dvb-usb/dvb-usb-ids.h Tue Aug 05 10:14:13 2008 -0300
+++ b/linux/drivers/media/dvb/dvb-usb/dvb-usb-ids.h Fri Aug 08 16:17:41 2008 +0800
@@ -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 -r fcf263987edf linux/drivers/media/dvb/frontends/Kconfig
--- a/linux/drivers/media/dvb/frontends/Kconfig Tue Aug 05 10:14:13 2008 -0300
+++ b/linux/drivers/media/dvb/frontends/Kconfig Fri Aug 08 16:17:41 2008 +0800
@@ -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 -r fcf263987edf linux/drivers/media/dvb/frontends/Makefile
--- a/linux/drivers/media/dvb/frontends/Makefile Tue Aug 05 10:14:13 2008 -0300
+++ b/linux/drivers/media/dvb/frontends/Makefile Fri Aug 08 16:17:41 2008 +0800
@@ -48,3 +48,4 @@ obj-$(CONFIG_DVB_AU8522) += au8522.o
obj-$(CONFIG_DVB_AU8522) += au8522.o
obj-$(CONFIG_DVB_TDA10048) += tda10048.o
obj-$(CONFIG_DVB_S5H1411) += s5h1411.o
+obj-$(CONFIG_DVB_LGS8GL5) += lgs8gl5.o
diff -r fcf263987edf linux/drivers/media/dvb/frontends/lgs8gl5.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/linux/drivers/media/dvb/frontends/lgs8gl5.c Fri Aug 08 16:17:41 2008 +0800
@@ -0,0 +1,472 @@
+/*
+ Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
+
+ Copyright (C) 2008 Sirius International (Hong Kong) Limited
+ Timothy Lee <timothy.lee@xxxxxxxxxxxx>
+
+ 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: write_reg error (reg == 0x%02x, val == 0x%02x, ret == %i)\n",
+ __FUNCTION__, 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", __FUNCTION__);
+
+ 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", __FUNCTION__);
+
+ 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", __FUNCTION__);
+
+ 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", __FUNCTION__);
+
+ 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", __FUNCTION__);
+
+ 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", __FUNCTION__);
+
+ /* 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;
+}
+
+
+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");
+
+EXPORT_SYMBOL(lgs8gl5_attach);
diff -r fcf263987edf linux/drivers/media/dvb/frontends/lgs8gl5.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/linux/drivers/media/dvb/frontends/lgs8gl5.h Fri Aug 08 16:17:41 2008 +0800
@@ -0,0 +1,46 @@
+/*
+ Legend Silicon LGS-8GL5 DMB-TH OFDM demodulator driver
+
+ Copyright (C) 2008 Sirius International (Hong Kong) Limited
+ Timothy Lee <timothy.lee@xxxxxxxxxxxx>
+
+ 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", __FUNCTION__);
+ return NULL;
+}
+#endif // CONFIG_DVB_LGS8GL5
+
+#endif // LGS8GL5_H
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