[PATCH] em28xx: split up em28xx_dvb_init to reduce stack size
From: Arnd Bergmann
Date: Mon Dec 11 2017 - 07:05:33 EST
With CONFIG_KASAN, the init function uses a large amount of kernel stack:
drivers/media/usb/em28xx/em28xx-dvb.c: In function 'em28xx_dvb_init.part.4':
drivers/media/usb/em28xx/em28xx-dvb.c:2061:1: error: the frame size of 3232 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
Using gcc-7 with -fsanitize-address-use-after-scope makes this even worse:
drivers/media/usb/em28xx/em28xx-dvb.c: In function 'em28xx_dvb_init':
drivers/media/usb/em28xx/em28xx-dvb.c:2069:1: error: the frame size of 4280 bytes is larger than 3072 bytes [-Werror=frame-larger-than=]
By splitting out each part of the switch/case statement that has its own local
variables into a separate function, no single one of them uses more than 500 bytes,
and with a noinline_for_stack annotation we can ensure that they are not merged
back together.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/media/usb/em28xx/em28xx-dvb.c | 947 ++++++++++++++++++----------------
1 file changed, 508 insertions(+), 439 deletions(-)
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 9950a740e04e..6665885dbaa7 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -934,7 +934,7 @@ static struct lgdt3306a_config hauppauge_01595_lgdt3306a_config = {
/* ------------------------------------------------------------------ */
-static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
+static noinline_for_stack int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
{
struct dvb_frontend *fe;
struct xc2028_config cfg;
@@ -1126,6 +1126,492 @@ static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
dvb_unregister_adapter(&dvb->adapter);
}
+static noinline_for_stack int em28174_dvb_init_pctv_460e(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_client *client;
+ struct i2c_board_info board_info;
+ struct tda10071_platform_data tda10071_pdata = {};
+ struct a8293_platform_data a8293_pdata = {};
+ int result;
+
+ /* attach demod + tuner combo */
+ tda10071_pdata.clk = 40444000, /* 40.444 MHz */
+ tda10071_pdata.i2c_wr_max = 64,
+ tda10071_pdata.ts_mode = TDA10071_TS_SERIAL,
+ tda10071_pdata.pll_multiplier = 20,
+ tda10071_pdata.tuner_i2c_addr = 0x14,
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "tda10071_cx24118", I2C_NAME_SIZE);
+ board_info.addr = 0x55;
+ board_info.platform_data = &tda10071_pdata;
+ request_module("tda10071");
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->fe[0] = tda10071_pdata.get_dvb_frontend(client);
+ dvb->i2c_client_demod = client;
+
+ /* attach SEC */
+ a8293_pdata.dvb_frontend = dvb->fe[0];
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
+ board_info.addr = 0x08;
+ board_info.platform_data = &a8293_pdata;
+ request_module("a8293");
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->i2c_client_sec = client;
+ result = 0;
+out_free:
+ return result;
+}
+
+static noinline_for_stack int em28178_dvb_init_pctv_461e(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_client *client;
+ struct i2c_adapter *i2c_adapter;
+ struct i2c_board_info board_info;
+ struct m88ds3103_platform_data m88ds3103_pdata = {};
+ struct ts2020_config ts2020_config = {};
+ struct a8293_platform_data a8293_pdata = {};
+ int result;
+
+ /* attach demod */
+ m88ds3103_pdata.clk = 27000000;
+ m88ds3103_pdata.i2c_wr_max = 33;
+ m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
+ m88ds3103_pdata.ts_clk = 16000;
+ m88ds3103_pdata.ts_clk_pol = 1;
+ m88ds3103_pdata.agc = 0x99;
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE);
+ board_info.addr = 0x68;
+ board_info.platform_data = &m88ds3103_pdata;
+ request_module("m88ds3103");
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(client);
+ i2c_adapter = m88ds3103_pdata.get_i2c_adapter(client);
+ dvb->i2c_client_demod = client;
+
+ /* attach tuner */
+ ts2020_config.fe = dvb->fe[0];
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "ts2022", I2C_NAME_SIZE);
+ board_info.addr = 0x60;
+ board_info.platform_data = &ts2020_config;
+ request_module("ts2020");
+ client = i2c_new_device(i2c_adapter, &board_info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->i2c_client_tuner = client;
+ /* delegate signal strength measurement to tuner */
+ dvb->fe[0]->ops.read_signal_strength =
+ dvb->fe[0]->ops.tuner_ops.get_rf_strength;
+
+ /* attach SEC */
+ a8293_pdata.dvb_frontend = dvb->fe[0];
+ memset(&board_info, 0, sizeof(board_info));
+ strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
+ board_info.addr = 0x08;
+ board_info.platform_data = &a8293_pdata;
+ request_module("a8293");
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_tuner->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_tuner);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_tuner->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_tuner);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->i2c_client_sec = client;
+ result = 0;
+out_free:
+ return result;
+}
+
+static noinline_for_stack int em28178_dvb_init_pctv_292e(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ struct i2c_board_info info;
+ struct si2168_config si2168_config;
+ struct si2157_config si2157_config;
+ int result;
+
+ /* attach demod */
+ memset(&si2168_config, 0, sizeof(si2168_config));
+ si2168_config.i2c_adapter = &adapter;
+ si2168_config.fe = &dvb->fe[0];
+ si2168_config.ts_mode = SI2168_TS_PARALLEL;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2168", I2C_NAME_SIZE);
+ info.addr = 0x64;
+ info.platform_data = &si2168_config;
+ request_module(info.type);
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_demod = client;
+
+ /* attach tuner */
+ memset(&si2157_config, 0, sizeof(si2157_config));
+ si2157_config.fe = dvb->fe[0];
+ si2157_config.if_port = 1;
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ si2157_config.mdev = dev->media_dev;
+#endif
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2157", I2C_NAME_SIZE);
+ info.addr = 0x60;
+ info.platform_data = &si2157_config;
+ request_module(info.type);
+ client = i2c_new_device(adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_tuner = client;
+ dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
+ result = 0;
+out_free:
+ return result;
+}
+
+static noinline_for_stack int em28178_dvb_init_terratec_t2_stick_hd(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ struct i2c_board_info info;
+ struct si2168_config si2168_config;
+ struct si2157_config si2157_config;
+ int result;
+
+ /* attach demod */
+ memset(&si2168_config, 0, sizeof(si2168_config));
+ si2168_config.i2c_adapter = &adapter;
+ si2168_config.fe = &dvb->fe[0];
+ si2168_config.ts_mode = SI2168_TS_PARALLEL;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2168", I2C_NAME_SIZE);
+ info.addr = 0x64;
+ info.platform_data = &si2168_config;
+ request_module(info.type);
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_demod = client;
+
+ /* attach tuner */
+ memset(&si2157_config, 0, sizeof(si2157_config));
+ si2157_config.fe = dvb->fe[0];
+ si2157_config.if_port = 0;
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ si2157_config.mdev = dev->media_dev;
+#endif
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2146", I2C_NAME_SIZE);
+ info.addr = 0x60;
+ info.platform_data = &si2157_config;
+ request_module("si2157");
+ client = i2c_new_device(adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_tuner = client;
+ result = 0;
+out_free:
+ return result;
+}
+
+static noinline_for_stack int em28178_dvb_init_plex_px_bcud(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_client *client;
+ struct i2c_board_info info;
+ struct tc90522_config tc90522_config;
+ struct qm1d1c0042_config qm1d1c0042_config;
+ int result;
+
+ /* attach demod */
+ memset(&tc90522_config, 0, sizeof(tc90522_config));
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "tc90522sat", I2C_NAME_SIZE);
+ info.addr = 0x15;
+ info.platform_data = &tc90522_config;
+ request_module("tc90522");
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->i2c_client_demod = client;
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ /* attach tuner */
+ memset(&qm1d1c0042_config, 0,
+ sizeof(qm1d1c0042_config));
+ qm1d1c0042_config.fe = tc90522_config.fe;
+ qm1d1c0042_config.lpf = 1;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "qm1d1c0042", I2C_NAME_SIZE);
+ info.addr = 0x61;
+ info.platform_data = &qm1d1c0042_config;
+ request_module(info.type);
+ client = i2c_new_device(tc90522_config.tuner_i2c,
+ &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->i2c_client_tuner = client;
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ dvb->fe[0] = tc90522_config.fe;
+ px_bcud_init(dev);
+ result = 0;
+out_free:
+ return result;
+}
+
+static noinline_for_stack int em28174_dvb_init_hauppauge_wintv_dualhd_dvb(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ struct i2c_board_info info;
+ struct si2168_config si2168_config;
+ struct si2157_config si2157_config;
+ int result;
+
+ /* attach demod */
+ memset(&si2168_config, 0, sizeof(si2168_config));
+ si2168_config.i2c_adapter = &adapter;
+ si2168_config.fe = &dvb->fe[0];
+ si2168_config.ts_mode = SI2168_TS_SERIAL;
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2168", I2C_NAME_SIZE);
+ info.addr = 0x64;
+ info.platform_data = &si2168_config;
+ request_module(info.type);
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_demod = client;
+
+ /* attach tuner */
+ memset(&si2157_config, 0, sizeof(si2157_config));
+ si2157_config.fe = dvb->fe[0];
+ si2157_config.if_port = 1;
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ si2157_config.mdev = dev->media_dev;
+#endif
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2157", I2C_NAME_SIZE);
+ info.addr = 0x60;
+ info.platform_data = &si2157_config;
+ request_module(info.type);
+ client = i2c_new_device(adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_tuner = client;
+ result = 0;
+out_free:
+ return result;
+}
+
+static int em28174_dvb_init_hauppauge_wintv_dualhd_01595(struct em28xx *dev)
+{
+ struct em28xx_dvb *dvb = dev->dvb;
+ struct i2c_adapter *adapter;
+ struct i2c_client *client;
+ struct i2c_board_info info = {};
+ struct lgdt3306a_config lgdt3306a_config;
+ struct si2157_config si2157_config = {};
+ int result;
+
+ /* attach demod */
+ lgdt3306a_config = hauppauge_01595_lgdt3306a_config;
+ lgdt3306a_config.fe = &dvb->fe[0];
+ lgdt3306a_config.i2c_adapter = &adapter;
+ strlcpy(info.type, "lgdt3306a", sizeof(info.type));
+ info.addr = 0x59;
+ info.platform_data = &lgdt3306a_config;
+ request_module(info.type);
+ client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus],
+ &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_demod = client;
+
+ /* attach tuner */
+ si2157_config.fe = dvb->fe[0];
+ si2157_config.if_port = 1;
+ si2157_config.inversion = 1;
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ si2157_config.mdev = dev->media_dev;
+#endif
+ memset(&info, 0, sizeof(struct i2c_board_info));
+ strlcpy(info.type, "si2157", sizeof(info.type));
+ info.addr = 0x60;
+ info.platform_data = &si2157_config;
+ request_module(info.type);
+
+ client = i2c_new_device(adapter, &info);
+ if (client == NULL || client->dev.driver == NULL) {
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+ if (!try_module_get(client->dev.driver->owner)) {
+ i2c_unregister_device(client);
+ module_put(dvb->i2c_client_demod->dev.driver->owner);
+ i2c_unregister_device(dvb->i2c_client_demod);
+ result = -ENODEV;
+ goto out_free;
+ }
+
+ dvb->i2c_client_tuner = client;
+ result = 0;
+out_free:
+ return result;
+}
static int em28xx_dvb_init(struct em28xx *dev)
{
int result = 0;
@@ -1427,60 +1913,11 @@ static int em28xx_dvb_init(struct em28xx *dev)
&dev->i2c_adap[dev->def_i2c_bus],
&c3tech_duo_tda18271_config);
break;
- case EM28174_BOARD_PCTV_460E: {
- struct i2c_client *client;
- struct i2c_board_info board_info;
- struct tda10071_platform_data tda10071_pdata = {};
- struct a8293_platform_data a8293_pdata = {};
-
- /* attach demod + tuner combo */
- tda10071_pdata.clk = 40444000, /* 40.444 MHz */
- tda10071_pdata.i2c_wr_max = 64,
- tda10071_pdata.ts_mode = TDA10071_TS_SERIAL,
- tda10071_pdata.pll_multiplier = 20,
- tda10071_pdata.tuner_i2c_addr = 0x14,
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "tda10071_cx24118", I2C_NAME_SIZE);
- board_info.addr = 0x55;
- board_info.platform_data = &tda10071_pdata;
- request_module("tda10071");
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
- dvb->fe[0] = tda10071_pdata.get_dvb_frontend(client);
- dvb->i2c_client_demod = client;
-
- /* attach SEC */
- a8293_pdata.dvb_frontend = dvb->fe[0];
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
- board_info.addr = 0x08;
- board_info.platform_data = &a8293_pdata;
- request_module("a8293");
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
+ case EM28174_BOARD_PCTV_460E:
+ result = em28174_dvb_init_pctv_460e(dev);
+ if (result)
goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- dvb->i2c_client_sec = client;
break;
- }
case EM2874_BOARD_DELOCK_61959:
case EM2874_BOARD_MAXMEDIA_UB425_TC:
/* attach demodulator */
@@ -1627,403 +2064,35 @@ static int em28xx_dvb_init(struct em28xx *dev)
}
}
break;
- case EM28178_BOARD_PCTV_461E: {
- struct i2c_client *client;
- struct i2c_adapter *i2c_adapter;
- struct i2c_board_info board_info;
- struct m88ds3103_platform_data m88ds3103_pdata = {};
- struct ts2020_config ts2020_config = {};
- struct a8293_platform_data a8293_pdata = {};
-
- /* attach demod */
- m88ds3103_pdata.clk = 27000000;
- m88ds3103_pdata.i2c_wr_max = 33;
- m88ds3103_pdata.ts_mode = M88DS3103_TS_PARALLEL;
- m88ds3103_pdata.ts_clk = 16000;
- m88ds3103_pdata.ts_clk_pol = 1;
- m88ds3103_pdata.agc = 0x99;
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE);
- board_info.addr = 0x68;
- board_info.platform_data = &m88ds3103_pdata;
- request_module("m88ds3103");
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
+ case EM28178_BOARD_PCTV_461E:
+ result = em28178_dvb_init_pctv_461e(dev);
+ if (result)
goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
- dvb->fe[0] = m88ds3103_pdata.get_dvb_frontend(client);
- i2c_adapter = m88ds3103_pdata.get_i2c_adapter(client);
- dvb->i2c_client_demod = client;
-
- /* attach tuner */
- ts2020_config.fe = dvb->fe[0];
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "ts2022", I2C_NAME_SIZE);
- board_info.addr = 0x60;
- board_info.platform_data = &ts2020_config;
- request_module("ts2020");
- client = i2c_new_device(i2c_adapter, &board_info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- dvb->i2c_client_tuner = client;
- /* delegate signal strength measurement to tuner */
- dvb->fe[0]->ops.read_signal_strength =
- dvb->fe[0]->ops.tuner_ops.get_rf_strength;
-
- /* attach SEC */
- a8293_pdata.dvb_frontend = dvb->fe[0];
- memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, "a8293", I2C_NAME_SIZE);
- board_info.addr = 0x08;
- board_info.platform_data = &a8293_pdata;
- request_module("a8293");
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &board_info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_tuner->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_tuner);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_tuner->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_tuner);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- dvb->i2c_client_sec = client;
break;
- }
case EM28178_BOARD_PCTV_292E:
- {
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- struct i2c_board_info info;
- struct si2168_config si2168_config;
- struct si2157_config si2157_config;
-
- /* attach demod */
- memset(&si2168_config, 0, sizeof(si2168_config));
- si2168_config.i2c_adapter = &adapter;
- si2168_config.fe = &dvb->fe[0];
- si2168_config.ts_mode = SI2168_TS_PARALLEL;
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2168", I2C_NAME_SIZE);
- info.addr = 0x64;
- info.platform_data = &si2168_config;
- request_module(info.type);
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_demod = client;
-
- /* attach tuner */
- memset(&si2157_config, 0, sizeof(si2157_config));
- si2157_config.fe = dvb->fe[0];
- si2157_config.if_port = 1;
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
- si2157_config.mdev = dev->media_dev;
-#endif
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2157", I2C_NAME_SIZE);
- info.addr = 0x60;
- info.platform_data = &si2157_config;
- request_module(info.type);
- client = i2c_new_device(adapter, &info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_tuner = client;
- dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;
- }
+ result = em28178_dvb_init_pctv_292e(dev);
+ if (result)
+ goto out_free;
break;
case EM28178_BOARD_TERRATEC_T2_STICK_HD:
- {
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- struct i2c_board_info info;
- struct si2168_config si2168_config;
- struct si2157_config si2157_config;
-
- /* attach demod */
- memset(&si2168_config, 0, sizeof(si2168_config));
- si2168_config.i2c_adapter = &adapter;
- si2168_config.fe = &dvb->fe[0];
- si2168_config.ts_mode = SI2168_TS_PARALLEL;
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2168", I2C_NAME_SIZE);
- info.addr = 0x64;
- info.platform_data = &si2168_config;
- request_module(info.type);
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_demod = client;
-
- /* attach tuner */
- memset(&si2157_config, 0, sizeof(si2157_config));
- si2157_config.fe = dvb->fe[0];
- si2157_config.if_port = 0;
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
- si2157_config.mdev = dev->media_dev;
-#endif
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2146", I2C_NAME_SIZE);
- info.addr = 0x60;
- info.platform_data = &si2157_config;
- request_module("si2157");
- client = i2c_new_device(adapter, &info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_tuner = client;
- }
+ result = em28178_dvb_init_terratec_t2_stick_hd(dev);
+ if (result)
+ goto out_free;
break;
-
case EM28178_BOARD_PLEX_PX_BCUD:
- {
- struct i2c_client *client;
- struct i2c_board_info info;
- struct tc90522_config tc90522_config;
- struct qm1d1c0042_config qm1d1c0042_config;
-
- /* attach demod */
- memset(&tc90522_config, 0, sizeof(tc90522_config));
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "tc90522sat", I2C_NAME_SIZE);
- info.addr = 0x15;
- info.platform_data = &tc90522_config;
- request_module("tc90522");
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
- dvb->i2c_client_demod = client;
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
-
- /* attach tuner */
- memset(&qm1d1c0042_config, 0,
- sizeof(qm1d1c0042_config));
- qm1d1c0042_config.fe = tc90522_config.fe;
- qm1d1c0042_config.lpf = 1;
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "qm1d1c0042", I2C_NAME_SIZE);
- info.addr = 0x61;
- info.platform_data = &qm1d1c0042_config;
- request_module(info.type);
- client = i2c_new_device(tc90522_config.tuner_i2c,
- &info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- dvb->i2c_client_tuner = client;
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- dvb->fe[0] = tc90522_config.fe;
- px_bcud_init(dev);
- }
+ result = em28178_dvb_init_plex_px_bcud(dev);
+ if (result)
+ goto out_free;
break;
case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB:
- {
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- struct i2c_board_info info;
- struct si2168_config si2168_config;
- struct si2157_config si2157_config;
-
- /* attach demod */
- memset(&si2168_config, 0, sizeof(si2168_config));
- si2168_config.i2c_adapter = &adapter;
- si2168_config.fe = &dvb->fe[0];
- si2168_config.ts_mode = SI2168_TS_SERIAL;
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2168", I2C_NAME_SIZE);
- info.addr = 0x64;
- info.platform_data = &si2168_config;
- request_module(info.type);
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus], &info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_demod = client;
-
- /* attach tuner */
- memset(&si2157_config, 0, sizeof(si2157_config));
- si2157_config.fe = dvb->fe[0];
- si2157_config.if_port = 1;
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
- si2157_config.mdev = dev->media_dev;
-#endif
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2157", I2C_NAME_SIZE);
- info.addr = 0x60;
- info.platform_data = &si2157_config;
- request_module(info.type);
- client = i2c_new_device(adapter, &info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_tuner = client;
-
- }
+ result = em28174_dvb_init_hauppauge_wintv_dualhd_dvb(dev);
+ if (result)
+ goto out_free;
break;
case EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595:
- {
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- struct i2c_board_info info = {};
- struct lgdt3306a_config lgdt3306a_config;
- struct si2157_config si2157_config = {};
-
- /* attach demod */
- lgdt3306a_config = hauppauge_01595_lgdt3306a_config;
- lgdt3306a_config.fe = &dvb->fe[0];
- lgdt3306a_config.i2c_adapter = &adapter;
- strlcpy(info.type, "lgdt3306a", sizeof(info.type));
- info.addr = 0x59;
- info.platform_data = &lgdt3306a_config;
- request_module(info.type);
- client = i2c_new_device(&dev->i2c_adap[dev->def_i2c_bus],
- &info);
- if (client == NULL || client->dev.driver == NULL) {
- result = -ENODEV;
- goto out_free;
- }
-
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_demod = client;
-
- /* attach tuner */
- si2157_config.fe = dvb->fe[0];
- si2157_config.if_port = 1;
- si2157_config.inversion = 1;
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
- si2157_config.mdev = dev->media_dev;
-#endif
- memset(&info, 0, sizeof(struct i2c_board_info));
- strlcpy(info.type, "si2157", sizeof(info.type));
- info.addr = 0x60;
- info.platform_data = &si2157_config;
- request_module(info.type);
-
- client = i2c_new_device(adapter, &info);
- if (client == NULL || client->dev.driver == NULL) {
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
- if (!try_module_get(client->dev.driver->owner)) {
- i2c_unregister_device(client);
- module_put(dvb->i2c_client_demod->dev.driver->owner);
- i2c_unregister_device(dvb->i2c_client_demod);
- result = -ENODEV;
- goto out_free;
- }
-
- dvb->i2c_client_tuner = client;
- }
+ result = em28174_dvb_init_hauppauge_wintv_dualhd_01595(dev);
+ if (result)
+ goto out_free;
break;
default:
dev_err(&dev->intf->dev,
--
2.9.0