diff options
Diffstat (limited to 'drivers/media/video/cx25840')
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-core.c | 87 | ||||
| -rw-r--r-- | drivers/media/video/cx25840/cx25840.h | 16 |
2 files changed, 73 insertions, 30 deletions
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index f6afeec499c..3b09f46dddf 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -208,8 +208,11 @@ static void cx25840_initialize(struct i2c_client *client, int loadfw) static void input_change(struct i2c_client *client) { + struct cx25840_state *state = i2c_get_clientdata(client); v4l2_std_id std = cx25840_get_v4lstd(client); + /* Note: perhaps V4L2_STD_PAL_M should be handled as V4L2_STD_NTSC + instead of V4L2_STD_PAL. Someone needs to test this. */ if (std & V4L2_STD_PAL) { /* Follow tuner change procedure for PAL */ cx25840_write(client, 0x808, 0xff); @@ -220,7 +223,32 @@ static void input_change(struct i2c_client *client) cx25840_write(client, 0x80b, 0x10); } else if (std & V4L2_STD_NTSC) { /* NTSC */ - cx25840_write(client, 0x808, 0xf6); + if (state->cardtype == CARDTYPE_PVR150_WORKAROUND) { + /* Certain Hauppauge PVR150 models have a hardware bug + that causes audio to drop out. For these models the + audio standard must be set explicitly. + To be precise: it affects cards with tuner models + 85, 99 and 112 (model numbers from tveeprom). */ + if (std == V4L2_STD_NTSC_M_JP) { + /* Japan uses EIAJ audio standard */ + cx25840_write(client, 0x808, 0x2f); + } else { + /* Others use the BTSC audio standard */ + cx25840_write(client, 0x808, 0x1f); + } + /* South Korea uses the A2-M (aka Zweiton M) audio + standard, and should set 0x808 to 0x3f, but I don't + know how to detect this. */ + } else if (std == V4L2_STD_NTSC_M_JP) { + /* Japan uses EIAJ audio standard */ + cx25840_write(client, 0x808, 0xf7); + } else { + /* Others use the BTSC audio standard */ + cx25840_write(client, 0x808, 0xf6); + } + /* South Korea uses the A2-M (aka Zweiton M) audio standard, + and should set 0x808 to 0xf8, but I don't know how to + detect this. */ cx25840_write(client, 0x80b, 0x00); } @@ -241,7 +269,8 @@ static int set_input(struct i2c_client *client, enum cx25840_input input) case CX25840_TUNER: cx25840_dbg("now setting Tuner input\n"); - if (state->cardtype == CARDTYPE_PVR150) { + if (state->cardtype == CARDTYPE_PVR150 || + state->cardtype == CARDTYPE_PVR150_WORKAROUND) { /* CH_SEL_ADC2=1 */ cx25840_and_or(client, 0x102, ~0x2, 0x02); } @@ -304,24 +333,30 @@ static int set_input(struct i2c_client *client, enum cx25840_input input) static int set_v4lstd(struct i2c_client *client, v4l2_std_id std) { - u8 fmt; - - switch (std) { - /* zero is autodetect */ - case 0: fmt = 0x0; break; - /* default ntsc to ntsc-m */ - case V4L2_STD_NTSC: - case V4L2_STD_NTSC_M: fmt = 0x1; break; - case V4L2_STD_NTSC_M_JP: fmt = 0x2; break; - case V4L2_STD_NTSC_443: fmt = 0x3; break; - case V4L2_STD_PAL: fmt = 0x4; break; - case V4L2_STD_PAL_M: fmt = 0x5; break; - case V4L2_STD_PAL_N: fmt = 0x6; break; - case V4L2_STD_PAL_Nc: fmt = 0x7; break; - case V4L2_STD_PAL_60: fmt = 0x8; break; - case V4L2_STD_SECAM: fmt = 0xc; break; - default: - return -ERANGE; + u8 fmt=0; /* zero is autodetect */ + + /* First tests should be against specific std */ + if (std & V4L2_STD_NTSC_M_JP) { + fmt=0x2; + } else if (std & V4L2_STD_NTSC_443) { + fmt=0x3; + } else if (std & V4L2_STD_PAL_M) { + fmt=0x5; + } else if (std & V4L2_STD_PAL_N) { + fmt=0x6; + } else if (std & V4L2_STD_PAL_Nc) { + fmt=0x7; + } else if (std & V4L2_STD_PAL_60) { + fmt=0x8; + } else { + /* Then, test against generic ones */ + if (std & V4L2_STD_NTSC) { + fmt=0x1; + } else if (std & V4L2_STD_PAL) { + fmt=0x4; + } else if (std & V4L2_STD_SECAM) { + fmt=0xc; + } } cx25840_and_or(client, 0x400, ~0xf, fmt); @@ -363,6 +398,7 @@ static int set_v4lctrl(struct i2c_client *client, struct v4l2_control *ctrl) case CX25840_CID_CARDTYPE: switch (ctrl->value) { case CARDTYPE_PVR150: + case CARDTYPE_PVR150_WORKAROUND: case CARDTYPE_PG600: state->cardtype = ctrl->value; break; @@ -714,7 +750,7 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd, /* ----------------------------------------------------------------------- */ -struct i2c_driver i2c_driver_cx25840; +static struct i2c_driver i2c_driver_cx25840; static int cx25840_detect_client(struct i2c_adapter *adapter, int address, int kind) @@ -737,7 +773,6 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address, client->addr = address; client->adapter = adapter; client->driver = &i2c_driver_cx25840; - client->flags = I2C_CLIENT_ALLOW_USE; snprintf(client->name, sizeof(client->name) - 1, "cx25840"); cx25840_dbg("detecting cx25840 client on address 0x%x\n", address << 1); @@ -807,16 +842,16 @@ static int cx25840_detach_client(struct i2c_client *client) /* ----------------------------------------------------------------------- */ -struct i2c_driver i2c_driver_cx25840 = { - .name = "cx25840", +static struct i2c_driver i2c_driver_cx25840 = { + .driver = { + .name = "cx25840", + }, .id = I2C_DRIVERID_CX25840, - .flags = I2C_DF_NOTIFY, .attach_adapter = cx25840_attach_adapter, .detach_client = cx25840_detach_client, .command = cx25840_command, - .owner = THIS_MODULE, }; diff --git a/drivers/media/video/cx25840/cx25840.h b/drivers/media/video/cx25840/cx25840.h index 5c3f0639fb7..40aa59f9c52 100644 --- a/drivers/media/video/cx25840/cx25840.h +++ b/drivers/media/video/cx25840/cx25840.h @@ -27,22 +27,30 @@ extern int cx25840_debug; #define cx25840_dbg(fmt, arg...) do { if (cx25840_debug) \ - printk(KERN_INFO "%s debug %d-%04x: " fmt, client->driver->name, \ + printk(KERN_INFO "%s debug %d-%04x: " fmt, \ + client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) #define cx25840_err(fmt, arg...) do { \ - printk(KERN_ERR "%s %d-%04x: " fmt, client->driver->name, \ + printk(KERN_ERR "%s %d-%04x: " fmt, client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) #define cx25840_info(fmt, arg...) do { \ - printk(KERN_INFO "%s %d-%04x: " fmt, client->driver->name, \ + printk(KERN_INFO "%s %d-%04x: " fmt, client->driver->driver.name, \ i2c_adapter_id(client->adapter), client->addr , ## arg); } while (0) #define CX25840_CID_CARDTYPE (V4L2_CID_PRIVATE_BASE+0) +/* The CARDTYPE_PVR150_WORKAROUND cardtype activates a workaround for a + hardware bug that is present in PVR150 (and possible PVR500) cards that + have certain NTSC tuners (tveeprom model numbers 85, 99 and 112). The + audio autodetect fails on some channels for these models and the workaround + is to select the audio standard explicitly. Many thanks to Hauppauge for + providing this information. */ enum cx25840_cardtype { CARDTYPE_PVR150, - CARDTYPE_PG600 + CARDTYPE_PG600, + CARDTYPE_PVR150_WORKAROUND, }; enum cx25840_input { |