diff options
Diffstat (limited to 'drivers/media/video/pvrusb2')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index 838d01c9d02..610bd848df2 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -42,6 +42,18 @@ static int ir_mode[PVR_NUM] = { [0 ... PVR_NUM-1] = 1 }; module_param_array(ir_mode, int, NULL, 0444); MODULE_PARM_DESC(ir_mode,"specify: 0=disable IR reception, 1=normal IR"); +static int pvr2_disable_ir_video; +module_param_named(disable_autoload_ir_video, pvr2_disable_ir_video, + int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(disable_autoload_ir_video, + "1=do not try to autoload ir_video IR receiver"); + +/* Mapping of IR schemes to known I2C addresses - if any */ +static const unsigned char ir_video_addresses[] = { + [PVR2_IR_SCHEME_29XXX] = 0x18, + [PVR2_IR_SCHEME_24XXX] = 0x18, +}; + static int pvr2_i2c_write(struct pvr2_hdw *hdw, /* Context */ u8 i2c_addr, /* I2C address we're talking to */ u8 *data, /* Data to write */ @@ -559,6 +571,31 @@ static void do_i2c_scan(struct pvr2_hdw *hdw) printk(KERN_INFO "%s: i2c scan done.\n", hdw->name); } +static void pvr2_i2c_register_ir(struct pvr2_hdw *hdw) +{ + struct i2c_board_info info; + unsigned char addr = 0; + if (pvr2_disable_ir_video) { + pvr2_trace(PVR2_TRACE_INFO, + "Automatic binding of ir_video has been disabled."); + return; + } + if (hdw->ir_scheme_active < ARRAY_SIZE(ir_video_addresses)) { + addr = ir_video_addresses[hdw->ir_scheme_active]; + } + if (!addr) { + /* The device either doesn't support I2C-based IR or we + don't know (yet) how to operate IR on the device. */ + return; + } + pvr2_trace(PVR2_TRACE_INFO, + "Binding ir_video to i2c address 0x%02x.", addr); + memset(&info, 0, sizeof(struct i2c_board_info)); + strlcpy(info.type, "ir_video", I2C_NAME_SIZE); + info.addr = addr; + i2c_new_device(&hdw->i2c_adap, &info); +} + void pvr2_i2c_core_init(struct pvr2_hdw *hdw) { unsigned int idx; @@ -614,6 +651,8 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw) } } if (i2c_scan) do_i2c_scan(hdw); + + pvr2_i2c_register_ir(hdw); } void pvr2_i2c_core_done(struct pvr2_hdw *hdw) |