diff options
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-devattr.h | 28 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 119 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | 1 |
3 files changed, 144 insertions, 4 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h index cb3a33eb027..f0692398682 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h +++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h @@ -33,6 +33,31 @@ */ +#define PVR2_CLIENT_ID_MSP3400 1 +#define PVR2_CLIENT_ID_CX25840 2 +#define PVR2_CLIENT_ID_SAA7115 3 +#define PVR2_CLIENT_ID_TUNER 4 +#define PVR2_CLIENT_ID_CS53132A 5 + +struct pvr2_device_client_desc { + /* One ovr PVR2_CLIENT_ID_xxxx */ + unsigned char module_id; + + /* Null-terminated array of I2C addresses to try in order + initialize the module. It's safe to make this null terminated + since we're never going to encounter an i2c device with an + address of zero. If this is a null pointer or zero-length, + then no I2C addresses have been specified, in which case we'll + try some compiled in defaults for now. */ + unsigned char *i2c_address_list; +}; + +struct pvr2_device_client_table { + const struct pvr2_device_client_desc *lst; + unsigned char cnt; +}; + + struct pvr2_string_table { const char **lst; unsigned int cnt; @@ -66,6 +91,9 @@ struct pvr2_device_desc { /* List of additional client modules we need to load */ struct pvr2_string_table client_modules; + /* List of defined client modules we need to load */ + struct pvr2_device_client_table client_table; + /* List of FX2 firmware file names we should search; if empty then FX2 firmware check / load is skipped and we assume the device was initialized from internal ROM. */ diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index e6c4660786a..faa94cef2c5 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -105,6 +105,20 @@ MODULE_PARM_DESC(radio_freq, "specify initial radio frequency"); /* size of a firmware chunk */ #define FIRMWARE_CHUNK_SIZE 0x2000 +static const char *module_names[] = { + [PVR2_CLIENT_ID_MSP3400] = "msp3400", + [PVR2_CLIENT_ID_CX25840] = "cx25840", + [PVR2_CLIENT_ID_SAA7115] = "saa7115", + [PVR2_CLIENT_ID_TUNER] = "tuner", + [PVR2_CLIENT_ID_CS53132A] = "cs53132a", +}; + + +static const unsigned char *module_i2c_addresses[] = { + [PVR2_CLIENT_ID_TUNER] = "\x60\x61\x62\x63", +}; + + /* Define the list of additional controls we'll dynamically construct based on query of the cx2341x module. */ struct pvr2_mpeg_ids { @@ -1934,6 +1948,105 @@ static void pvr2_hdw_setup_std(struct pvr2_hdw *hdw) } +static unsigned int pvr2_copy_i2c_addr_list( + unsigned short *dst, const unsigned char *src, + unsigned int dst_max) +{ + unsigned int cnt; + if (!src) return 0; + while (src[cnt] && (cnt + 1) < dst_max) { + dst[cnt] = src[cnt]; + cnt++; + } + dst[cnt] = I2C_CLIENT_END; + return cnt; +} + + +static void pvr2_hdw_load_subdev(struct pvr2_hdw *hdw, + const struct pvr2_device_client_desc *cd) +{ + const char *fname; + unsigned char mid; + struct v4l2_subdev *sd; + unsigned int i2ccnt; + const unsigned char *p; + /* Arbitrary count - max # i2c addresses we will probe */ + unsigned short i2caddr[25]; + + mid = cd->module_id; + fname = (mid < ARRAY_SIZE(module_names)) ? module_names[mid] : NULL; + if (!fname) { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "Module ID %u for device %s is unknown" + " (this is probably a bad thing...)", + mid, + hdw->hdw_desc->description); + return; + } + + i2ccnt = pvr2_copy_i2c_addr_list(i2caddr, cd->i2c_address_list, + ARRAY_SIZE(i2caddr)); + if (!i2ccnt && ((p = (mid < ARRAY_SIZE(module_i2c_addresses)) ? + module_i2c_addresses[mid] : NULL) != NULL)) { + /* Second chance: Try default i2c address list */ + i2ccnt = pvr2_copy_i2c_addr_list(i2caddr, p, + ARRAY_SIZE(i2caddr)); + } + + if (!i2ccnt) { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "Module ID %u for device %s:" + " No i2c addresses" + " (this is probably a bad thing...)", + mid, hdw->hdw_desc->description); + return; + } + + /* Note how the 2nd and 3rd arguments are the same for both + * v4l2_i2c_new_subdev() and v4l2_i2c_new_probed_subdev(). Why? + * Well the 2nd argument is the module name to load, while the 3rd + * argument is documented in the framework as being the "chipid" - + * and every other place where I can find examples of this, the + * "chipid" appears to just be the module name again. So here we + * just do the same thing. */ + if (i2ccnt == 1) { + sd = v4l2_i2c_new_subdev(&hdw->i2c_adap, + fname, fname, + i2caddr[0]); + } else { + sd = v4l2_i2c_new_probed_subdev(&hdw->i2c_adap, + fname, fname, + i2caddr); + } + + // ????? + /* Based on module ID, we should remember subdev pointers + so that we can send certain custom commands where + needed. */ + // ????? + +} + + +static void pvr2_hdw_load_modules(struct pvr2_hdw *hdw) +{ + unsigned int idx; + const struct pvr2_string_table *cm; + const struct pvr2_device_client_table *ct; + + cm = &hdw->hdw_desc->client_modules; + for (idx = 0; idx < cm->cnt; idx++) { + request_module(cm->lst[idx]); + } + + ct = &hdw->hdw_desc->client_table; + for (idx = 0; idx < ct->cnt; idx++) { + pvr2_hdw_load_subdev(hdw,&ct->lst[idx]); + } +} + + static void pvr2_hdw_setup_low(struct pvr2_hdw *hdw) { int ret; @@ -1973,10 +2086,6 @@ static void pvr2_hdw_setup_low(struct pvr2_hdw *hdw) if (!pvr2_hdw_dev_ok(hdw)) return; - for (idx = 0; idx < hdw->hdw_desc->client_modules.cnt; idx++) { - request_module(hdw->hdw_desc->client_modules.lst[idx]); - } - if (!hdw->hdw_desc->flag_no_powerup) { pvr2_hdw_cmd_powerup(hdw); if (!pvr2_hdw_dev_ok(hdw)) return; @@ -1995,6 +2104,8 @@ static void pvr2_hdw_setup_low(struct pvr2_hdw *hdw) pvr2_i2c_core_init(hdw); if (!pvr2_hdw_dev_ok(hdw)) return; + pvr2_hdw_load_modules(hdw); + for (idx = 0; idx < CTRLDEF_COUNT; idx++) { cptr = hdw->controls + idx; if (cptr->info->skip_init) continue; diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index 2ba429f1bc8..1129fe40c04 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -608,6 +608,7 @@ void pvr2_i2c_core_init(struct pvr2_hdw *hdw) hdw->i2c_adap.algo = &hdw->i2c_algo; hdw->i2c_adap.algo_data = hdw; hdw->i2c_linked = !0; + i2c_set_adapdata(&hdw->i2c_adap, &hdw->v4l2_dev); i2c_add_adapter(&hdw->i2c_adap); if (hdw->i2c_func[0x18] == i2c_24xxx_ir) { /* Probe for a different type of IR receiver on this |