diff options
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-avc.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-avc.c b/drivers/media/dvb/firewire/firedtv-avc.c index 1f3d1fbf446..f0f1842fab6 100644 --- a/drivers/media/dvb/firewire/firedtv-avc.c +++ b/drivers/media/dvb/firewire/firedtv-avc.c @@ -132,6 +132,20 @@ MODULE_PARM_DESC(debug, "Verbose logging (none = 0" ", FCP payloads = " __stringify(AVC_DEBUG_FCP_PAYLOADS) ", or a combination, or all = -1)"); +/* + * This is a workaround since there is no vendor specific command to retrieve + * ca_info using AVC. If this parameter is not used, ca_system_id will be + * filled with application_manufacturer from ca_app_info. + * Digital Everywhere have said that adding ca_info is on their TODO list. + */ +static unsigned int num_fake_ca_system_ids; +static int fake_ca_system_ids[4] = { -1, -1, -1, -1 }; +module_param_array(fake_ca_system_ids, int, &num_fake_ca_system_ids, 0644); +MODULE_PARM_DESC(fake_ca_system_ids, "If your CAM application manufacturer " + "does not have the same ca_system_id as your CAS, you can " + "override what ca_system_ids are presented to the " + "application by setting this field to an array of ids."); + static const char *debug_fcp_ctype(unsigned int ctype) { static const char *ctypes[] = { @@ -999,7 +1013,7 @@ int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len) { struct avc_command_frame *c = (void *)fdtv->avc_data; struct avc_response_frame *r = (void *)fdtv->avc_data; - int pos, ret; + int i, pos, ret; mutex_lock(&fdtv->avc_mutex); @@ -1026,9 +1040,18 @@ int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len) app_info[0] = (EN50221_TAG_CA_INFO >> 16) & 0xff; app_info[1] = (EN50221_TAG_CA_INFO >> 8) & 0xff; app_info[2] = (EN50221_TAG_CA_INFO >> 0) & 0xff; - app_info[3] = 2; - app_info[4] = r->operand[pos + 0]; - app_info[5] = r->operand[pos + 1]; + if (num_fake_ca_system_ids == 0) { + app_info[3] = 2; + app_info[4] = r->operand[pos + 0]; + app_info[5] = r->operand[pos + 1]; + } else { + app_info[3] = num_fake_ca_system_ids * 2; + for (i = 0; i < num_fake_ca_system_ids; i++) { + app_info[4 + i * 2] = + (fake_ca_system_ids[i] >> 8) & 0xff; + app_info[5 + i * 2] = fake_ca_system_ids[i] & 0xff; + } + } *len = app_info[3] + 4; out: mutex_unlock(&fdtv->avc_mutex); |