diff options
Diffstat (limited to 'drivers/media/dvb/firewire')
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-1394.c | 19 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-avc.c | 514 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-dvb.c | 1 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv-fw.c | 2 | ||||
| -rw-r--r-- | drivers/media/dvb/firewire/firedtv.h | 6 |
5 files changed, 293 insertions, 249 deletions
diff --git a/drivers/media/dvb/firewire/firedtv-1394.c b/drivers/media/dvb/firewire/firedtv-1394.c index 7c5459c2..c3e0ec2 100644 --- a/drivers/media/dvb/firewire/firedtv-1394.c +++ b/drivers/media/dvb/firewire/firedtv-1394.c @@ -90,13 +90,14 @@ static inline struct node_entry *node_of(struct firedtv *fdtv) return container_of(fdtv->device, struct unit_directory, device)->ne; } -static int node_lock(struct firedtv *fdtv, u64 addr, __be32 data[]) +static int node_lock(struct firedtv *fdtv, u64 addr, void *data) { + quadlet_t *d = data; int ret; - ret = hpsb_node_lock(node_of(fdtv), addr, EXTCODE_COMPARE_SWAP, - (__force quadlet_t *)&data[1], (__force quadlet_t)data[0]); - data[0] = data[1]; + ret = hpsb_node_lock(node_of(fdtv), addr, + EXTCODE_COMPARE_SWAP, &d[1], d[0]); + d[0] = d[1]; return ret; } @@ -192,9 +193,13 @@ static int node_probe(struct device *dev) int kv_len, err; void *kv_str; - kv_len = (ud->model_name_kv->value.leaf.len - 2) * sizeof(quadlet_t); - kv_str = CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(ud->model_name_kv); - + if (ud->model_name_kv) { + kv_len = (ud->model_name_kv->value.leaf.len - 2) * 4; + kv_str = CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(ud->model_name_kv); + } else { + kv_len = 0; + kv_str = NULL; + } fdtv = fdtv_alloc(dev, &fdtv_1394_backend, kv_str, kv_len); if (!fdtv) return -ENOMEM; diff --git a/drivers/media/dvb/firewire/firedtv-avc.c b/drivers/media/dvb/firewire/firedtv-avc.c index 50c42a4..1b31beb 100644 --- a/drivers/media/dvb/firewire/firedtv-avc.c +++ b/drivers/media/dvb/firewire/firedtv-avc.c @@ -74,7 +74,6 @@ #define EN50221_TAG_CA_INFO 0x9f8031 struct avc_command_frame { - int length; u8 ctype; u8 subunit; u8 opcode; @@ -82,13 +81,27 @@ struct avc_command_frame { }; struct avc_response_frame { - int length; u8 response; u8 subunit; u8 opcode; u8 operand[509]; }; +#define LAST_OPERAND (509 - 1) + +static inline void clear_operands(struct avc_command_frame *c, int from, int to) +{ + memset(&c->operand[from], 0, to - from + 1); +} + +static void pad_operands(struct avc_command_frame *c, int from) +{ + int to = ALIGN(from, 4); + + if (from <= to && to <= LAST_OPERAND) + clear_operands(c, from, to); +} + #define AVC_DEBUG_READ_DESCRIPTOR 0x0001 #define AVC_DEBUG_DSIT 0x0002 #define AVC_DEBUG_DSD 0x0004 @@ -202,78 +215,65 @@ static void debug_pmt(char *msg, int length) 16, 1, msg, length, false); } -static int __avc_write(struct firedtv *fdtv, - const struct avc_command_frame *c, struct avc_response_frame *r) +static int avc_write(struct firedtv *fdtv) { int err, retry; - if (r) - fdtv->avc_reply_received = false; + fdtv->avc_reply_received = false; for (retry = 0; retry < 6; retry++) { if (unlikely(avc_debug)) - debug_fcp(&c->ctype, c->length); + debug_fcp(fdtv->avc_data, fdtv->avc_data_length); err = fdtv->backend->write(fdtv, FCP_COMMAND_REGISTER, - (void *)&c->ctype, c->length); + fdtv->avc_data, fdtv->avc_data_length); if (err) { - fdtv->avc_reply_received = true; dev_err(fdtv->device, "FCP command write failed\n"); + return err; } - if (!r) - return 0; - /* * AV/C specs say that answers should be sent within 150 ms. * Time out after 200 ms. */ if (wait_event_timeout(fdtv->avc_wait, fdtv->avc_reply_received, - msecs_to_jiffies(200)) != 0) { - r->length = fdtv->response_length; - memcpy(&r->response, fdtv->response, r->length); - + msecs_to_jiffies(200)) != 0) return 0; - } } dev_err(fdtv->device, "FCP response timed out\n"); + return -ETIMEDOUT; } -static int avc_write(struct firedtv *fdtv, - const struct avc_command_frame *c, struct avc_response_frame *r) +static bool is_register_rc(struct avc_response_frame *r) { - int ret; - - if (mutex_lock_interruptible(&fdtv->avc_mutex)) - return -EINTR; - - ret = __avc_write(fdtv, c, r); - - mutex_unlock(&fdtv->avc_mutex); - return ret; + return r->opcode == AVC_OPCODE_VENDOR && + r->operand[0] == SFE_VENDOR_DE_COMPANYID_0 && + r->operand[1] == SFE_VENDOR_DE_COMPANYID_1 && + r->operand[2] == SFE_VENDOR_DE_COMPANYID_2 && + r->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL; } int avc_recv(struct firedtv *fdtv, void *data, size_t length) { - struct avc_response_frame *r = - data - offsetof(struct avc_response_frame, response); + struct avc_response_frame *r = data; if (unlikely(avc_debug)) debug_fcp(data, length); - if (length >= 8 && - r->operand[0] == SFE_VENDOR_DE_COMPANYID_0 && - r->operand[1] == SFE_VENDOR_DE_COMPANYID_1 && - r->operand[2] == SFE_VENDOR_DE_COMPANYID_2 && - r->operand[3] == SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL) { - if (r->response == AVC_RESPONSE_CHANGED) { - fdtv_handle_rc(fdtv, - r->operand[4] << 8 | r->operand[5]); + if (length >= 8 && is_register_rc(r)) { + switch (r->response) { + case AVC_RESPONSE_CHANGED: + fdtv_handle_rc(fdtv, r->operand[4] << 8 | r->operand[5]); schedule_work(&fdtv->remote_ctrl_work); - } else if (r->response != AVC_RESPONSE_INTERIM) { + break; + case AVC_RESPONSE_INTERIM: + if (is_register_rc((void *)fdtv->avc_data)) + goto wake; + break; + default: dev_info(fdtv->device, "remote control result = %d\n", r->response); } @@ -285,9 +285,9 @@ int avc_recv(struct firedtv *fdtv, void *data, size_t length) return -EIO; } - memcpy(fdtv->response, data, length); - fdtv->response_length = length; - + memcpy(fdtv->avc_data, data, length); + fdtv->avc_data_length = length; +wake: fdtv->avc_reply_received = true; wake_up(&fdtv->avc_wait); @@ -318,10 +318,11 @@ static int add_pid_filter(struct firedtv *fdtv, u8 *operand) * tuning command for setting the relative LNB frequency * (not supported by the AVC standard) */ -static void avc_tuner_tuneqpsk(struct firedtv *fdtv, - struct dvb_frontend_parameters *params, - struct avc_command_frame *c) +static int avc_tuner_tuneqpsk(struct firedtv *fdtv, + struct dvb_frontend_parameters *params) { + struct avc_command_frame *c = (void *)fdtv->avc_data; + c->opcode = AVC_OPCODE_VENDOR; c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; @@ -370,16 +371,18 @@ static void avc_tuner_tuneqpsk(struct firedtv *fdtv, c->operand[13] = 0x1; c->operand[14] = 0xff; c->operand[15] = 0xff; - c->length = 20; + + return 16; } else { - c->length = 16; + return 13; } } -static void avc_tuner_dsd_dvb_c(struct firedtv *fdtv, - struct dvb_frontend_parameters *params, - struct avc_command_frame *c) +static int avc_tuner_dsd_dvb_c(struct firedtv *fdtv, + struct dvb_frontend_parameters *params) { + struct avc_command_frame *c = (void *)fdtv->avc_data; + c->opcode = AVC_OPCODE_DSD; c->operand[0] = 0; /* source plug */ @@ -440,15 +443,14 @@ static void avc_tuner_dsd_dvb_c(struct firedtv *fdtv, c->operand[20] = 0x00; c->operand[21] = 0x00; - /* Add PIDs to filter */ - c->length = ALIGN(22 + add_pid_filter(fdtv, &c->operand[22]) + 3, 4); + return 22 + add_pid_filter(fdtv, &c->operand[22]); } -static void avc_tuner_dsd_dvb_t(struct firedtv *fdtv, - struct dvb_frontend_parameters *params, - struct avc_command_frame *c) +static int avc_tuner_dsd_dvb_t(struct firedtv *fdtv, + struct dvb_frontend_parameters *params) { struct dvb_ofdm_parameters *ofdm = ¶ms->u.ofdm; + struct avc_command_frame *c = (void *)fdtv->avc_data; c->opcode = AVC_OPCODE_DSD; @@ -543,55 +545,58 @@ static void avc_tuner_dsd_dvb_t(struct firedtv *fdtv, c->operand[15] = 0x00; /* network_ID[0] */ c->operand[16] = 0x00; /* network_ID[1] */ - /* Add PIDs to filter */ - c->length = ALIGN(17 + add_pid_filter(fdtv, &c->operand[17]) + 3, 4); + return 17 + add_pid_filter(fdtv, &c->operand[17]); } int avc_tuner_dsd(struct firedtv *fdtv, struct dvb_frontend_parameters *params) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int pos, ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; switch (fdtv->type) { case FIREDTV_DVB_S: - case FIREDTV_DVB_S2: avc_tuner_tuneqpsk(fdtv, params, c); break; - case FIREDTV_DVB_C: avc_tuner_dsd_dvb_c(fdtv, params, c); break; - case FIREDTV_DVB_T: avc_tuner_dsd_dvb_t(fdtv, params, c); break; + case FIREDTV_DVB_S2: pos = avc_tuner_tuneqpsk(fdtv, params); break; + case FIREDTV_DVB_C: pos = avc_tuner_dsd_dvb_c(fdtv, params); break; + case FIREDTV_DVB_T: pos = avc_tuner_dsd_dvb_t(fdtv, params); break; default: BUG(); } + pad_operands(c, pos); - if (avc_write(fdtv, c, r) < 0) - return -EIO; - - msleep(500); + fdtv->avc_data_length = ALIGN(3 + pos, 4); + ret = avc_write(fdtv); #if 0 - /* FIXME: */ - /* u8 *status was an out-parameter of avc_tuner_dsd, unused by caller */ + /* + * FIXME: + * u8 *status was an out-parameter of avc_tuner_dsd, unused by caller. + * Check for AVC_RESPONSE_ACCEPTED here instead? + */ if (status) *status = r->operand[2]; #endif - return 0; + mutex_unlock(&fdtv->avc_mutex); + + if (ret == 0) + msleep(500); + + return ret; } int avc_tuner_set_pids(struct firedtv *fdtv, unsigned char pidc, u16 pid[]) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ - int pos, k; + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret, pos, k; if (pidc > 16 && pidc != 0xff) return -EINVAL; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -614,24 +619,27 @@ int avc_tuner_set_pids(struct firedtv *fdtv, unsigned char pidc, u16 pid[]) c->operand[pos++] = 0x00; /* tableID */ c->operand[pos++] = 0x00; /* filter_length */ } + pad_operands(c, pos); - c->length = ALIGN(3 + pos, 4); + fdtv->avc_data_length = ALIGN(3 + pos, 4); + ret = avc_write(fdtv); - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code? */ - msleep(50); - return 0; + mutex_unlock(&fdtv->avc_mutex); + + if (ret == 0) + msleep(50); + + return ret; } int avc_tuner_get_ts(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ - int sl; + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret, sl; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -646,26 +654,33 @@ int avc_tuner_get_ts(struct firedtv *fdtv) c->operand[4] = 0x00; /* antenna number */ c->operand[5] = 0x0; /* system_specific_search_flags */ c->operand[6] = sl; /* system_specific_multiplex selection_length */ - c->operand[7] = 0x00; /* valid_flags [0] */ - c->operand[8] = 0x00; /* valid_flags [1] */ - c->operand[7 + sl] = 0x00; /* nr_of_dsit_sel_specs (always 0) */ + /* + * operand[7]: valid_flags[0] + * operand[8]: valid_flags[1] + * operand[7 + sl]: nr_of_dsit_sel_specs (always 0) + */ + clear_operands(c, 7, 24); - c->length = fdtv->type == FIREDTV_DVB_T ? 24 : 28; + fdtv->avc_data_length = fdtv->type == FIREDTV_DVB_T ? 24 : 28; + ret = avc_write(fdtv); - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code? */ - msleep(250); - return 0; + mutex_unlock(&fdtv->avc_mutex); + + if (ret == 0) + msleep(250); + + return ret; } int avc_identify_subunit(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -678,31 +693,34 @@ int avc_identify_subunit(struct firedtv *fdtv) c->operand[4] = 0x08; /* length lowbyte */ c->operand[5] = 0x00; /* offset highbyte */ c->operand[6] = 0x0d; /* offset lowbyte */ + clear_operands(c, 7, 8); /* padding */ - c->length = 12; - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; if ((r->response != AVC_RESPONSE_STABLE && r->response != AVC_RESPONSE_ACCEPTED) || (r->operand[3] << 8) + r->operand[4] != 8) { dev_err(fdtv->device, "cannot read subunit identifier\n"); - return -EINVAL; + ret = -EINVAL; } - return 0; +out: + mutex_unlock(&fdtv->avc_mutex); + + return ret; } #define SIZEOF_ANTENNA_INPUT_INFO 22 int avc_tuner_status(struct firedtv *fdtv, struct firedtv_tuner_status *stat) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; - int length; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int length, ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -710,27 +728,30 @@ int avc_tuner_status(struct firedtv *fdtv, struct firedtv_tuner_status *stat) c->operand[0] = DESCRIPTOR_TUNER_STATUS; c->operand[1] = 0xff; /* read_result_status */ - c->operand[2] = 0x00; /* reserved */ - c->operand[3] = 0; /* SIZEOF_ANTENNA_INPUT_INFO >> 8; */ - c->operand[4] = 0; /* SIZEOF_ANTENNA_INPUT_INFO & 0xff; */ - c->operand[5] = 0x00; - c->operand[6] = 0x00; - - c->length = 12; - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* + * operand[2]: reserved + * operand[3]: SIZEOF_ANTENNA_INPUT_INFO >> 8 + * operand[4]: SIZEOF_ANTENNA_INPUT_INFO & 0xff + */ + clear_operands(c, 2, 31); + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; if (r->response != AVC_RESPONSE_STABLE && r->response != AVC_RESPONSE_ACCEPTED) { dev_err(fdtv->device, "cannot read tuner status\n"); - return -EINVAL; + ret = -EINVAL; + goto out; } length = r->operand[9]; if (r->operand[1] != 0x10 || length != SIZEOF_ANTENNA_INPUT_INFO) { dev_err(fdtv->device, "got invalid tuner status\n"); - return -EINVAL; + ret = -EINVAL; + goto out; } stat->active_system = r->operand[10]; @@ -766,20 +787,21 @@ int avc_tuner_status(struct firedtv *fdtv, struct firedtv_tuner_status *stat) stat->ca_dvb_flag = r->operand[31] >> 3 & 1; stat->ca_error_flag = r->operand[31] >> 2 & 1; stat->ca_initialization_status = r->operand[31] >> 1 & 1; +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_lnb_control(struct firedtv *fdtv, char voltage, char burst, char conttone, char nrdiseq, struct dvb_diseqc_master_cmd *diseqcmd) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; - int i, j, k; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int pos, j, k, ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -789,41 +811,41 @@ int avc_lnb_control(struct firedtv *fdtv, char voltage, char burst, c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; c->operand[3] = SFE_VENDOR_OPCODE_LNB_CONTROL; - c->operand[4] = voltage; c->operand[5] = nrdiseq; - i = 6; - + pos = 6; for (j = 0; j < nrdiseq; j++) { - c->operand[i++] = diseqcmd[j].msg_len; + c->operand[pos++] = diseqcmd[j].msg_len; for (k = 0; k < diseqcmd[j].msg_len; k++) - c->operand[i++] = diseqcmd[j].msg[k]; + c->operand[pos++] = diseqcmd[j].msg[k]; } + c->operand[pos++] = burst; + c->operand[pos++] = conttone; + pad_operands(c, pos); - c->operand[i++] = burst; - c->operand[i++] = conttone; - - c->length = ALIGN(3 + i, 4); - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = ALIGN(3 + pos, 4); + ret = avc_write(fdtv); + if (ret < 0) + goto out; if (r->response != AVC_RESPONSE_ACCEPTED) { dev_err(fdtv->device, "LNB control failed\n"); - return -EINVAL; + ret = -EINVAL; } +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_register_remote_control(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_NOTIFY; c->subunit = AVC_SUBUNIT_TYPE_UNIT | 7; @@ -833,10 +855,16 @@ int avc_register_remote_control(struct firedtv *fdtv) c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; c->operand[3] = SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL; + c->operand[4] = 0; /* padding */ + + fdtv->avc_data_length = 8; + ret = avc_write(fdtv); - c->length = 8; + /* FIXME: check response code? */ - return avc_write(fdtv, c, NULL); + mutex_unlock(&fdtv->avc_mutex); + + return ret; } void avc_remote_ctrl_work(struct work_struct *work) @@ -851,11 +879,10 @@ void avc_remote_ctrl_work(struct work_struct *work) #if 0 /* FIXME: unused */ int avc_tuner_host2ca(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -867,15 +894,16 @@ int avc_tuner_host2ca(struct firedtv *fdtv) c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */ - c->operand[6] = 0; /* more/last */ - c->operand[7] = 0; /* length */ + clear_operands(c, 6, 8); - c->length = 12; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code? */ - return 0; + mutex_unlock(&fdtv->avc_mutex); + + return ret; } #endif @@ -906,12 +934,11 @@ static int get_ca_object_length(struct avc_response_frame *r) int avc_ca_app_info(struct firedtv *fdtv, char *app_info, unsigned int *len) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; - int pos; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int pos, ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_STATUS; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -923,11 +950,12 @@ int avc_ca_app_info(struct firedtv *fdtv, char *app_info, unsigned int *len) c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */ + clear_operands(c, 6, LAST_OPERAND); - c->length = 12; - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; /* FIXME: check response code and validate response data */ @@ -939,18 +967,19 @@ int avc_ca_app_info(struct firedtv *fdtv, char *app_info, unsigned int *len) app_info[4] = 0x01; memcpy(&app_info[5], &r->operand[pos], 5 + r->operand[pos + 4]); *len = app_info[3] + 4; +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; - int pos; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int pos, ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_STATUS; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -962,11 +991,14 @@ int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len) c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */ + clear_operands(c, 6, LAST_OPERAND); - c->length = 12; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code and validate response data */ pos = get_ca_object_pos(r); app_info[0] = (EN50221_TAG_CA_INFO >> 16) & 0xff; @@ -976,17 +1008,18 @@ int avc_ca_info(struct firedtv *fdtv, char *app_info, unsigned int *len) app_info[4] = r->operand[pos + 0]; app_info[5] = r->operand[pos + 1]; *len = app_info[3] + 4; +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_ca_reset(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -1002,19 +1035,20 @@ int avc_ca_reset(struct firedtv *fdtv) c->operand[7] = 1; /* length */ c->operand[8] = 0; /* force hardware reset */ - c->length = 12; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code? */ - return 0; + mutex_unlock(&fdtv->avc_mutex); + + return ret; } int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; int list_management; int program_info_length; int pmt_cmd_id; @@ -1022,11 +1056,12 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) int write_pos; int es_info_length; int crc32_csum; + int ret; if (unlikely(avc_debug & AVC_DEBUG_APPLICATION_PMT)) debug_pmt(msg, length); - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_CONTROL; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -1058,7 +1093,7 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) c->operand[12] = 0x02; /* Table id=2 */ c->operand[13] = 0x80; /* Section syntax + length */ - /* c->operand[14] = XXXprogram_info_length + 12; */ + c->operand[15] = msg[1]; /* Program number */ c->operand[16] = msg[2]; c->operand[17] = 0x01; /* Version number=0 + current/next=1 */ @@ -1106,12 +1141,7 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) write_pos += es_info_length; } } - - /* CRC */ - c->operand[write_pos++] = 0x00; - c->operand[write_pos++] = 0x00; - c->operand[write_pos++] = 0x00; - c->operand[write_pos++] = 0x00; + write_pos += 4; /* CRC */ c->operand[7] = 0x82; c->operand[8] = (write_pos - 10) >> 8; @@ -1123,28 +1153,31 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) c->operand[write_pos - 3] = (crc32_csum >> 16) & 0xff; c->operand[write_pos - 2] = (crc32_csum >> 8) & 0xff; c->operand[write_pos - 1] = (crc32_csum >> 0) & 0xff; + pad_operands(c, write_pos); - c->length = ALIGN(3 + write_pos, 4); - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = ALIGN(3 + write_pos, 4); + ret = avc_write(fdtv); + if (ret < 0) + goto out; if (r->response != AVC_RESPONSE_ACCEPTED) { dev_err(fdtv->device, "CA PMT failed with response 0x%x\n", r->response); - return -EFAULT; + ret = -EFAULT; } +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_ca_get_time_date(struct firedtv *fdtv, int *interval) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_STATUS; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -1156,28 +1189,28 @@ int avc_ca_get_time_date(struct firedtv *fdtv, int *interval) c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_DATE_TIME; /* ca tag */ - c->operand[6] = 0; /* more/last */ - c->operand[7] = 0; /* length */ + clear_operands(c, 6, LAST_OPERAND); - c->length = 12; - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; /* FIXME: check response code and validate response data */ *interval = r->operand[get_ca_object_pos(r)]; +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } int avc_ca_enter_menu(struct firedtv *fdtv) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; /* FIXME: unused */ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_STATUS; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -1189,24 +1222,25 @@ int avc_ca_enter_menu(struct firedtv *fdtv) c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_ENTER_MENU; - c->operand[6] = 0; /* more/last */ - c->operand[7] = 0; /* length */ + clear_operands(c, 6, 8); - c->length = 12; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); - if (avc_write(fdtv, c, r) < 0) - return -EIO; + /* FIXME: check response code? */ - return 0; + mutex_unlock(&fdtv->avc_mutex); + + return ret; } int avc_ca_get_mmi(struct firedtv *fdtv, char *mmi_object, unsigned int *len) { - char buffer[sizeof(struct avc_command_frame)]; - struct avc_command_frame *c = (void *)buffer; - struct avc_response_frame *r = (void *)buffer; + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; - memset(c, 0, sizeof(*c)); + mutex_lock(&fdtv->avc_mutex); c->ctype = AVC_CTYPE_STATUS; c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; @@ -1218,20 +1252,21 @@ int avc_ca_get_mmi(struct firedtv *fdtv, char *mmi_object, unsigned int *len) c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; c->operand[4] = 0; /* slot */ c->operand[5] = SFE_VENDOR_TAG_CA_MMI; - c->operand[6] = 0; /* more/last */ - c->operand[7] = 0; /* length */ + clear_operands(c, 6, LAST_OPERAND); - c->length = 12; - - if (avc_write(fdtv, c, r) < 0) - return -EIO; + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; /* FIXME: check response code and validate response data */ *len = get_ca_object_length(r); memcpy(mmi_object, &r->operand[get_ca_object_pos(r)], *len); +out: + mutex_unlock(&fdtv->avc_mutex); - return 0; + return ret; } #define CMP_OUTPUT_PLUG_CONTROL_REG_0 0xfffff0000904ULL @@ -1240,14 +1275,14 @@ static int cmp_read(struct firedtv *fdtv, u64 addr, __be32 *data) { int ret; - if (mutex_lock_interruptible(&fdtv->avc_mutex)) - return -EINTR; + mutex_lock(&fdtv->avc_mutex); ret = fdtv->backend->read(fdtv, addr, data); if (ret < 0) dev_err(fdtv->device, "CMP: read I/O error\n"); mutex_unlock(&fdtv->avc_mutex); + return ret; } @@ -1255,14 +1290,19 @@ static int cmp_lock(struct firedtv *fdtv, u64 addr, __be32 data[]) { int ret; - if (mutex_lock_interruptible(&fdtv->avc_mutex)) - return -EINTR; + mutex_lock(&fdtv->avc_mutex); + + /* data[] is stack-allocated and should not be DMA-mapped. */ + memcpy(fdtv->avc_data, data, 8); - ret = fdtv->backend->lock(fdtv, addr, data); + ret = fdtv->backend->lock(fdtv, addr, fdtv->avc_data); if (ret < 0) dev_err(fdtv->device, "CMP: lock I/O error\n"); + else + memcpy(data, fdtv->avc_data, 8); mutex_unlock(&fdtv->avc_mutex); + return ret; } diff --git a/drivers/media/dvb/firewire/firedtv-dvb.c b/drivers/media/dvb/firewire/firedtv-dvb.c index fc9996c..079e8c5 100644 --- a/drivers/media/dvb/firewire/firedtv-dvb.c +++ b/drivers/media/dvb/firewire/firedtv-dvb.c @@ -277,7 +277,6 @@ struct firedtv *fdtv_alloc(struct device *dev, mutex_init(&fdtv->avc_mutex); init_waitqueue_head(&fdtv->avc_wait); - fdtv->avc_reply_received = true; mutex_init(&fdtv->demux_mutex); INIT_WORK(&fdtv->remote_ctrl_work, avc_remote_ctrl_work); diff --git a/drivers/media/dvb/firewire/firedtv-fw.c b/drivers/media/dvb/firewire/firedtv-fw.c index 6223bf0..7a3de16 100644 --- a/drivers/media/dvb/firewire/firedtv-fw.c +++ b/drivers/media/dvb/firewire/firedtv-fw.c @@ -41,7 +41,7 @@ static int node_req(struct firedtv *fdtv, u64 addr, void *data, size_t len, return rcode != RCODE_COMPLETE ? -EIO : 0; } -static int node_lock(struct firedtv *fdtv, u64 addr, __be32 data[]) +static int node_lock(struct firedtv *fdtv, u64 addr, void *data) { return node_req(fdtv, addr, data, 8, TCODE_LOCK_COMPARE_SWAP); } diff --git a/drivers/media/dvb/firewire/firedtv.h b/drivers/media/dvb/firewire/firedtv.h index 35080db..78cc28f 100644 --- a/drivers/media/dvb/firewire/firedtv.h +++ b/drivers/media/dvb/firewire/firedtv.h @@ -73,7 +73,7 @@ struct input_dev; struct firedtv; struct firedtv_backend { - int (*lock)(struct firedtv *fdtv, u64 addr, __be32 data[]); + int (*lock)(struct firedtv *fdtv, u64 addr, void *data); int (*read)(struct firedtv *fdtv, u64 addr, void *data); int (*write)(struct firedtv *fdtv, u64 addr, void *data, size_t len); int (*start_iso)(struct firedtv *fdtv); @@ -114,8 +114,8 @@ struct firedtv { unsigned long channel_active; u16 channel_pid[16]; - size_t response_length; - u8 response[512]; + int avc_data_length; + u8 avc_data[512]; }; /* firedtv-1394.c */ |