diff options
Diffstat (limited to 'kernel/drivers/media/firewire/firedtv-avc.c')
| -rw-r--r-- | kernel/drivers/media/firewire/firedtv-avc.c | 1467 |
1 files changed, 1467 insertions, 0 deletions
diff --git a/kernel/drivers/media/firewire/firedtv-avc.c b/kernel/drivers/media/firewire/firedtv-avc.c new file mode 100644 index 000000000..251a55611 --- /dev/null +++ b/kernel/drivers/media/firewire/firedtv-avc.c @@ -0,0 +1,1467 @@ +/* + * FireDTV driver (formerly known as FireSAT) + * + * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com> + * Copyright (C) 2008 Ben Backx <ben@bbackx.com> + * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <linux/bug.h> +#include <linux/crc32.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/moduleparam.h> +#include <linux/mutex.h> +#include <linux/string.h> +#include <linux/stringify.h> +#include <linux/wait.h> +#include <linux/workqueue.h> + +#include <dvb_frontend.h> + +#include "firedtv.h" + +#define FCP_COMMAND_REGISTER 0xfffff0000b00ULL + +#define AVC_CTYPE_CONTROL 0x0 +#define AVC_CTYPE_STATUS 0x1 +#define AVC_CTYPE_NOTIFY 0x3 + +#define AVC_RESPONSE_ACCEPTED 0x9 +#define AVC_RESPONSE_STABLE 0xc +#define AVC_RESPONSE_CHANGED 0xd +#define AVC_RESPONSE_INTERIM 0xf + +#define AVC_SUBUNIT_TYPE_TUNER (0x05 << 3) +#define AVC_SUBUNIT_TYPE_UNIT (0x1f << 3) + +#define AVC_OPCODE_VENDOR 0x00 +#define AVC_OPCODE_READ_DESCRIPTOR 0x09 +#define AVC_OPCODE_DSIT 0xc8 +#define AVC_OPCODE_DSD 0xcb + +#define DESCRIPTOR_TUNER_STATUS 0x80 +#define DESCRIPTOR_SUBUNIT_IDENTIFIER 0x00 + +#define SFE_VENDOR_DE_COMPANYID_0 0x00 /* OUI of Digital Everywhere */ +#define SFE_VENDOR_DE_COMPANYID_1 0x12 +#define SFE_VENDOR_DE_COMPANYID_2 0x87 + +#define SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL 0x0a +#define SFE_VENDOR_OPCODE_LNB_CONTROL 0x52 +#define SFE_VENDOR_OPCODE_TUNE_QPSK 0x58 /* for DVB-S */ + +#define SFE_VENDOR_OPCODE_GET_FIRMWARE_VERSION 0x00 +#define SFE_VENDOR_OPCODE_HOST2CA 0x56 +#define SFE_VENDOR_OPCODE_CA2HOST 0x57 +#define SFE_VENDOR_OPCODE_CISTATUS 0x59 +#define SFE_VENDOR_OPCODE_TUNE_QPSK2 0x60 /* for DVB-S2 */ + +#define SFE_VENDOR_TAG_CA_RESET 0x00 +#define SFE_VENDOR_TAG_CA_APPLICATION_INFO 0x01 +#define SFE_VENDOR_TAG_CA_PMT 0x02 +#define SFE_VENDOR_TAG_CA_DATE_TIME 0x04 +#define SFE_VENDOR_TAG_CA_MMI 0x05 +#define SFE_VENDOR_TAG_CA_ENTER_MENU 0x07 + +#define EN50221_LIST_MANAGEMENT_ONLY 0x03 +#define EN50221_TAG_APP_INFO 0x9f8021 +#define EN50221_TAG_CA_INFO 0x9f8031 + +struct avc_command_frame { + u8 ctype; + u8 subunit; + u8 opcode; + u8 operand[509]; +}; + +struct avc_response_frame { + 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 +#define AVC_DEBUG_REGISTER_REMOTE_CONTROL 0x0008 +#define AVC_DEBUG_LNB_CONTROL 0x0010 +#define AVC_DEBUG_TUNE_QPSK 0x0020 +#define AVC_DEBUG_TUNE_QPSK2 0x0040 +#define AVC_DEBUG_HOST2CA 0x0080 +#define AVC_DEBUG_CA2HOST 0x0100 +#define AVC_DEBUG_APPLICATION_PMT 0x4000 +#define AVC_DEBUG_FCP_PAYLOADS 0x8000 + +static int avc_debug; +module_param_named(debug, avc_debug, int, 0644); +MODULE_PARM_DESC(debug, "Verbose logging (none = 0" + ", FCP subactions" + ": READ DESCRIPTOR = " __stringify(AVC_DEBUG_READ_DESCRIPTOR) + ", DSIT = " __stringify(AVC_DEBUG_DSIT) + ", REGISTER_REMOTE_CONTROL = " __stringify(AVC_DEBUG_REGISTER_REMOTE_CONTROL) + ", LNB CONTROL = " __stringify(AVC_DEBUG_LNB_CONTROL) + ", TUNE QPSK = " __stringify(AVC_DEBUG_TUNE_QPSK) + ", TUNE QPSK2 = " __stringify(AVC_DEBUG_TUNE_QPSK2) + ", HOST2CA = " __stringify(AVC_DEBUG_HOST2CA) + ", CA2HOST = " __stringify(AVC_DEBUG_CA2HOST) + "; Application sent PMT = " __stringify(AVC_DEBUG_APPLICATION_PMT) + ", 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[] = { + [0x0] = "CONTROL", [0x1] = "STATUS", + [0x2] = "SPECIFIC INQUIRY", [0x3] = "NOTIFY", + [0x4] = "GENERAL INQUIRY", [0x8] = "NOT IMPLEMENTED", + [0x9] = "ACCEPTED", [0xa] = "REJECTED", + [0xb] = "IN TRANSITION", [0xc] = "IMPLEMENTED/STABLE", + [0xd] = "CHANGED", [0xf] = "INTERIM", + }; + const char *ret = ctype < ARRAY_SIZE(ctypes) ? ctypes[ctype] : NULL; + + return ret ? ret : "?"; +} + +static const char *debug_fcp_opcode(unsigned int opcode, + const u8 *data, int length) +{ + switch (opcode) { + case AVC_OPCODE_VENDOR: + break; + case AVC_OPCODE_READ_DESCRIPTOR: + return avc_debug & AVC_DEBUG_READ_DESCRIPTOR ? + "ReadDescriptor" : NULL; + case AVC_OPCODE_DSIT: + return avc_debug & AVC_DEBUG_DSIT ? + "DirectSelectInfo.Type" : NULL; + case AVC_OPCODE_DSD: + return avc_debug & AVC_DEBUG_DSD ? "DirectSelectData" : NULL; + default: + return "Unknown"; + } + + if (length < 7 || + data[3] != SFE_VENDOR_DE_COMPANYID_0 || + data[4] != SFE_VENDOR_DE_COMPANYID_1 || + data[5] != SFE_VENDOR_DE_COMPANYID_2) + return "Vendor/Unknown"; + + switch (data[6]) { + case SFE_VENDOR_OPCODE_REGISTER_REMOTE_CONTROL: + return avc_debug & AVC_DEBUG_REGISTER_REMOTE_CONTROL ? + "RegisterRC" : NULL; + case SFE_VENDOR_OPCODE_LNB_CONTROL: + return avc_debug & AVC_DEBUG_LNB_CONTROL ? "LNBControl" : NULL; + case SFE_VENDOR_OPCODE_TUNE_QPSK: + return avc_debug & AVC_DEBUG_TUNE_QPSK ? "TuneQPSK" : NULL; + case SFE_VENDOR_OPCODE_TUNE_QPSK2: + return avc_debug & AVC_DEBUG_TUNE_QPSK2 ? "TuneQPSK2" : NULL; + case SFE_VENDOR_OPCODE_HOST2CA: + return avc_debug & AVC_DEBUG_HOST2CA ? "Host2CA" : NULL; + case SFE_VENDOR_OPCODE_CA2HOST: + return avc_debug & AVC_DEBUG_CA2HOST ? "CA2Host" : NULL; + } + return "Vendor/Unknown"; +} + +static void debug_fcp(const u8 *data, int length) +{ + unsigned int subunit_type, subunit_id, opcode; + const char *op, *prefix; + + prefix = data[0] > 7 ? "FCP <- " : "FCP -> "; + subunit_type = data[1] >> 3; + subunit_id = data[1] & 7; + opcode = subunit_type == 0x1e || subunit_id == 5 ? ~0 : data[2]; + op = debug_fcp_opcode(opcode, data, length); + + if (op) { + printk(KERN_INFO "%ssu=%x.%x l=%d: %-8s - %s\n", + prefix, subunit_type, subunit_id, length, + debug_fcp_ctype(data[0]), op); + if (avc_debug & AVC_DEBUG_FCP_PAYLOADS) + print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_NONE, + 16, 1, data, length, false); + } +} + +static void debug_pmt(char *msg, int length) +{ + printk(KERN_INFO "APP PMT -> l=%d\n", length); + print_hex_dump(KERN_INFO, "APP PMT -> ", DUMP_PREFIX_NONE, + 16, 1, msg, length, false); +} + +static int avc_write(struct firedtv *fdtv) +{ + int err, retry; + + fdtv->avc_reply_received = false; + + for (retry = 0; retry < 6; retry++) { + if (unlikely(avc_debug)) + debug_fcp(fdtv->avc_data, fdtv->avc_data_length); + + err = fdtv_write(fdtv, FCP_COMMAND_REGISTER, + fdtv->avc_data, fdtv->avc_data_length); + if (err) { + dev_err(fdtv->device, "FCP command write failed\n"); + + return err; + } + + /* + * 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) + return 0; + } + dev_err(fdtv->device, "FCP response timed out\n"); + + return -ETIMEDOUT; +} + +static bool is_register_rc(struct avc_response_frame *r) +{ + 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; + + if (unlikely(avc_debug)) + debug_fcp(data, length); + + 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); + 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); + } + return 0; + } + + if (fdtv->avc_reply_received) { + dev_err(fdtv->device, "out-of-order AVC response, ignored\n"); + return -EIO; + } + + memcpy(fdtv->avc_data, data, length); + fdtv->avc_data_length = length; +wake: + fdtv->avc_reply_received = true; + wake_up(&fdtv->avc_wait); + + return 0; +} + +static int add_pid_filter(struct firedtv *fdtv, u8 *operand) +{ + int i, n, pos = 1; + + for (i = 0, n = 0; i < 16; i++) { + if (test_bit(i, &fdtv->channel_active)) { + operand[pos++] = 0x13; /* flowfunction relay */ + operand[pos++] = 0x80; /* dsd_sel_spec_valid_flags -> PID */ + operand[pos++] = (fdtv->channel_pid[i] >> 8) & 0x1f; + operand[pos++] = fdtv->channel_pid[i] & 0xff; + operand[pos++] = 0x00; /* tableID */ + operand[pos++] = 0x00; /* filter_length */ + n++; + } + } + operand[0] = n; + + return pos; +} + +/* + * tuning command for setting the relative LNB frequency + * (not supported by the AVC standard) + */ +static int avc_tuner_tuneqpsk(struct firedtv *fdtv, + struct dtv_frontend_properties *p) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + if (fdtv->type == FIREDTV_DVB_S2) + c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK2; + else + c->operand[3] = SFE_VENDOR_OPCODE_TUNE_QPSK; + + c->operand[4] = (p->frequency >> 24) & 0xff; + c->operand[5] = (p->frequency >> 16) & 0xff; + c->operand[6] = (p->frequency >> 8) & 0xff; + c->operand[7] = p->frequency & 0xff; + + c->operand[8] = ((p->symbol_rate / 1000) >> 8) & 0xff; + c->operand[9] = (p->symbol_rate / 1000) & 0xff; + + switch (p->fec_inner) { + case FEC_1_2: c->operand[10] = 0x1; break; + case FEC_2_3: c->operand[10] = 0x2; break; + case FEC_3_4: c->operand[10] = 0x3; break; + case FEC_5_6: c->operand[10] = 0x4; break; + case FEC_7_8: c->operand[10] = 0x5; break; + case FEC_4_5: + case FEC_8_9: + case FEC_AUTO: + default: c->operand[10] = 0x0; + } + + if (fdtv->voltage == 0xff) + c->operand[11] = 0xff; + else if (fdtv->voltage == SEC_VOLTAGE_18) /* polarisation */ + c->operand[11] = 0; + else + c->operand[11] = 1; + + if (fdtv->tone == 0xff) + c->operand[12] = 0xff; + else if (fdtv->tone == SEC_TONE_ON) /* band */ + c->operand[12] = 1; + else + c->operand[12] = 0; + + if (fdtv->type == FIREDTV_DVB_S2) { + if (fdtv->fe.dtv_property_cache.delivery_system == SYS_DVBS2) { + switch (fdtv->fe.dtv_property_cache.modulation) { + case QAM_16: c->operand[13] = 0x1; break; + case QPSK: c->operand[13] = 0x2; break; + case PSK_8: c->operand[13] = 0x3; break; + default: c->operand[13] = 0x2; break; + } + switch (fdtv->fe.dtv_property_cache.rolloff) { + case ROLLOFF_35: c->operand[14] = 0x2; break; + case ROLLOFF_20: c->operand[14] = 0x0; break; + case ROLLOFF_25: c->operand[14] = 0x1; break; + case ROLLOFF_AUTO: + default: c->operand[14] = 0x2; break; + /* case ROLLOFF_NONE: c->operand[14] = 0xff; break; */ + } + switch (fdtv->fe.dtv_property_cache.pilot) { + case PILOT_AUTO: c->operand[15] = 0x0; break; + case PILOT_OFF: c->operand[15] = 0x0; break; + case PILOT_ON: c->operand[15] = 0x1; break; + } + } else { + c->operand[13] = 0x1; /* auto modulation */ + c->operand[14] = 0xff; /* disable rolloff */ + c->operand[15] = 0xff; /* disable pilot */ + } + return 16; + } else { + return 13; + } +} + +static int avc_tuner_dsd_dvb_c(struct firedtv *fdtv, + struct dtv_frontend_properties *p) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + + c->opcode = AVC_OPCODE_DSD; + + c->operand[0] = 0; /* source plug */ + c->operand[1] = 0xd2; /* subfunction replace */ + c->operand[2] = 0x20; /* system id = DVB */ + c->operand[3] = 0x00; /* antenna number */ + c->operand[4] = 0x11; /* system_specific_multiplex selection_length */ + + /* multiplex_valid_flags, high byte */ + c->operand[5] = 0 << 7 /* reserved */ + | 0 << 6 /* Polarisation */ + | 0 << 5 /* Orbital_Pos */ + | 1 << 4 /* Frequency */ + | 1 << 3 /* Symbol_Rate */ + | 0 << 2 /* FEC_outer */ + | (p->fec_inner != FEC_AUTO ? 1 << 1 : 0) + | (p->modulation != QAM_AUTO ? 1 << 0 : 0); + + /* multiplex_valid_flags, low byte */ + c->operand[6] = 0 << 7 /* NetworkID */ + | 0 << 0 /* reserved */ ; + + c->operand[7] = 0x00; + c->operand[8] = 0x00; + c->operand[9] = 0x00; + c->operand[10] = 0x00; + + c->operand[11] = (((p->frequency / 4000) >> 16) & 0xff) | (2 << 6); + c->operand[12] = ((p->frequency / 4000) >> 8) & 0xff; + c->operand[13] = (p->frequency / 4000) & 0xff; + c->operand[14] = ((p->symbol_rate / 1000) >> 12) & 0xff; + c->operand[15] = ((p->symbol_rate / 1000) >> 4) & 0xff; + c->operand[16] = ((p->symbol_rate / 1000) << 4) & 0xf0; + c->operand[17] = 0x00; + + switch (p->fec_inner) { + case FEC_1_2: c->operand[18] = 0x1; break; + case FEC_2_3: c->operand[18] = 0x2; break; + case FEC_3_4: c->operand[18] = 0x3; break; + case FEC_5_6: c->operand[18] = 0x4; break; + case FEC_7_8: c->operand[18] = 0x5; break; + case FEC_8_9: c->operand[18] = 0x6; break; + case FEC_4_5: c->operand[18] = 0x8; break; + case FEC_AUTO: + default: c->operand[18] = 0x0; + } + + switch (p->modulation) { + case QAM_16: c->operand[19] = 0x08; break; + case QAM_32: c->operand[19] = 0x10; break; + case QAM_64: c->operand[19] = 0x18; break; + case QAM_128: c->operand[19] = 0x20; break; + case QAM_256: c->operand[19] = 0x28; break; + case QAM_AUTO: + default: c->operand[19] = 0x00; + } + + c->operand[20] = 0x00; + c->operand[21] = 0x00; + + return 22 + add_pid_filter(fdtv, &c->operand[22]); +} + +static int avc_tuner_dsd_dvb_t(struct firedtv *fdtv, + struct dtv_frontend_properties *p) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + + c->opcode = AVC_OPCODE_DSD; + + c->operand[0] = 0; /* source plug */ + c->operand[1] = 0xd2; /* subfunction replace */ + c->operand[2] = 0x20; /* system id = DVB */ + c->operand[3] = 0x00; /* antenna number */ + c->operand[4] = 0x0c; /* system_specific_multiplex selection_length */ + + /* multiplex_valid_flags, high byte */ + c->operand[5] = + 0 << 7 /* reserved */ + | 1 << 6 /* CenterFrequency */ + | (p->bandwidth_hz != 0 ? 1 << 5 : 0) + | (p->modulation != QAM_AUTO ? 1 << 4 : 0) + | (p->hierarchy != HIERARCHY_AUTO ? 1 << 3 : 0) + | (p->code_rate_HP != FEC_AUTO ? 1 << 2 : 0) + | (p->code_rate_LP != FEC_AUTO ? 1 << 1 : 0) + | (p->guard_interval != GUARD_INTERVAL_AUTO ? 1 << 0 : 0); + + /* multiplex_valid_flags, low byte */ + c->operand[6] = + 0 << 7 /* NetworkID */ + | (p->transmission_mode != TRANSMISSION_MODE_AUTO ? 1 << 6 : 0) + | 0 << 5 /* OtherFrequencyFlag */ + | 0 << 0 /* reserved */ ; + + c->operand[7] = 0x0; + c->operand[8] = (p->frequency / 10) >> 24; + c->operand[9] = ((p->frequency / 10) >> 16) & 0xff; + c->operand[10] = ((p->frequency / 10) >> 8) & 0xff; + c->operand[11] = (p->frequency / 10) & 0xff; + + switch (p->bandwidth_hz) { + case 7000000: c->operand[12] = 0x20; break; + case 8000000: + case 6000000: /* not defined by AVC spec */ + case 0: + default: c->operand[12] = 0x00; + } + + switch (p->modulation) { + case QAM_16: c->operand[13] = 1 << 6; break; + case QAM_64: c->operand[13] = 2 << 6; break; + case QPSK: + default: c->operand[13] = 0x00; + } + + switch (p->hierarchy) { + case HIERARCHY_1: c->operand[13] |= 1 << 3; break; + case HIERARCHY_2: c->operand[13] |= 2 << 3; break; + case HIERARCHY_4: c->operand[13] |= 3 << 3; break; + case HIERARCHY_AUTO: + case HIERARCHY_NONE: + default: break; + } + + switch (p->code_rate_HP) { + case FEC_2_3: c->operand[13] |= 1; break; + case FEC_3_4: c->operand[13] |= 2; break; + case FEC_5_6: c->operand[13] |= 3; break; + case FEC_7_8: c->operand[13] |= 4; break; + case FEC_1_2: + default: break; + } + + switch (p->code_rate_LP) { + case FEC_2_3: c->operand[14] = 1 << 5; break; + case FEC_3_4: c->operand[14] = 2 << 5; break; + case FEC_5_6: c->operand[14] = 3 << 5; break; + case FEC_7_8: c->operand[14] = 4 << 5; break; + case FEC_1_2: + default: c->operand[14] = 0x00; break; + } + + switch (p->guard_interval) { + case GUARD_INTERVAL_1_16: c->operand[14] |= 1 << 3; break; + case GUARD_INTERVAL_1_8: c->operand[14] |= 2 << 3; break; + case GUARD_INTERVAL_1_4: c->operand[14] |= 3 << 3; break; + case GUARD_INTERVAL_1_32: + case GUARD_INTERVAL_AUTO: + default: break; + } + + switch (p->transmission_mode) { + case TRANSMISSION_MODE_8K: c->operand[14] |= 1 << 1; break; + case TRANSMISSION_MODE_2K: + case TRANSMISSION_MODE_AUTO: + default: break; + } + + c->operand[15] = 0x00; /* network_ID[0] */ + c->operand[16] = 0x00; /* network_ID[1] */ + + return 17 + add_pid_filter(fdtv, &c->operand[17]); +} + +int avc_tuner_dsd(struct firedtv *fdtv, + struct dtv_frontend_properties *p) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int pos, ret; + + 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: pos = avc_tuner_tuneqpsk(fdtv, p); break; + case FIREDTV_DVB_C: pos = avc_tuner_dsd_dvb_c(fdtv, p); break; + case FIREDTV_DVB_T: pos = avc_tuner_dsd_dvb_t(fdtv, p); break; + default: + BUG(); + } + pad_operands(c, pos); + + 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. + * Check for AVC_RESPONSE_ACCEPTED here instead? + */ + if (status) + *status = r->operand[2]; +#endif + 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[]) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret, pos, k; + + if (pidc > 16 && pidc != 0xff) + return -EINVAL; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_DSD; + + c->operand[0] = 0; /* source plug */ + c->operand[1] = 0xd2; /* subfunction replace */ + c->operand[2] = 0x20; /* system id = DVB */ + c->operand[3] = 0x00; /* antenna number */ + c->operand[4] = 0x00; /* system_specific_multiplex selection_length */ + c->operand[5] = pidc; /* Nr_of_dsd_sel_specs */ + + pos = 6; + if (pidc != 0xff) + for (k = 0; k < pidc; k++) { + c->operand[pos++] = 0x13; /* flowfunction relay */ + c->operand[pos++] = 0x80; /* dsd_sel_spec_valid_flags -> PID */ + c->operand[pos++] = (pid[k] >> 8) & 0x1f; + c->operand[pos++] = pid[k] & 0xff; + c->operand[pos++] = 0x00; /* tableID */ + c->operand[pos++] = 0x00; /* filter_length */ + } + pad_operands(c, pos); + + fdtv->avc_data_length = ALIGN(3 + pos, 4); + ret = avc_write(fdtv); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + if (ret == 0) + msleep(50); + + return ret; +} + +int avc_tuner_get_ts(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret, sl; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_DSIT; + + sl = fdtv->type == FIREDTV_DVB_T ? 0x0c : 0x11; + + c->operand[0] = 0; /* source plug */ + c->operand[1] = 0xd2; /* subfunction replace */ + c->operand[2] = 0xff; /* status */ + c->operand[3] = 0x20; /* system id = DVB */ + c->operand[4] = 0x00; /* antenna number */ + c->operand[5] = 0x0; /* system_specific_search_flags */ + c->operand[6] = sl; /* system_specific_multiplex selection_length */ + /* + * 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); + + fdtv->avc_data_length = fdtv->type == FIREDTV_DVB_T ? 24 : 28; + ret = avc_write(fdtv); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + if (ret == 0) + msleep(250); + + return ret; +} + +int avc_identify_subunit(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_READ_DESCRIPTOR; + + c->operand[0] = DESCRIPTOR_SUBUNIT_IDENTIFIER; + c->operand[1] = 0xff; + c->operand[2] = 0x00; + c->operand[3] = 0x00; /* length highbyte */ + c->operand[4] = 0x08; /* length lowbyte */ + c->operand[5] = 0x00; /* offset highbyte */ + c->operand[6] = 0x0d; /* offset lowbyte */ + clear_operands(c, 7, 8); /* padding */ + + 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"); + ret = -EINVAL; + } +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) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int length, ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_READ_DESCRIPTOR; + + c->operand[0] = DESCRIPTOR_TUNER_STATUS; + c->operand[1] = 0xff; /* read_result_status */ + /* + * 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"); + 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"); + ret = -EINVAL; + goto out; + } + + stat->active_system = r->operand[10]; + stat->searching = r->operand[11] >> 7 & 1; + stat->moving = r->operand[11] >> 6 & 1; + stat->no_rf = r->operand[11] >> 5 & 1; + stat->input = r->operand[12] >> 7 & 1; + stat->selected_antenna = r->operand[12] & 0x7f; + stat->ber = r->operand[13] << 24 | + r->operand[14] << 16 | + r->operand[15] << 8 | + r->operand[16]; + stat->signal_strength = r->operand[17]; + stat->raster_frequency = r->operand[18] >> 6 & 2; + stat->rf_frequency = (r->operand[18] & 0x3f) << 16 | + r->operand[19] << 8 | + r->operand[20]; + stat->man_dep_info_length = r->operand[21]; + stat->front_end_error = r->operand[22] >> 4 & 1; + stat->antenna_error = r->operand[22] >> 3 & 1; + stat->front_end_power_status = r->operand[22] >> 1 & 1; + stat->power_supply = r->operand[22] & 1; + stat->carrier_noise_ratio = r->operand[23] << 8 | + r->operand[24]; + stat->power_supply_voltage = r->operand[27]; + stat->antenna_voltage = r->operand[28]; + stat->firewire_bus_voltage = r->operand[29]; + stat->ca_mmi = r->operand[30] & 1; + stat->ca_pmt_reply = r->operand[31] >> 7 & 1; + stat->ca_date_time_request = r->operand[31] >> 6 & 1; + stat->ca_application_info = r->operand[31] >> 5 & 1; + stat->ca_module_present_status = r->operand[31] >> 4 & 1; + 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 ret; +} + +int avc_lnb_control(struct firedtv *fdtv, char voltage, char burst, + char conttone, char nrdiseq, + struct dvb_diseqc_master_cmd *diseqcmd) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int pos, j, k, ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + 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; + + pos = 6; + for (j = 0; j < nrdiseq; j++) { + c->operand[pos++] = diseqcmd[j].msg_len; + + for (k = 0; k < diseqcmd[j].msg_len; k++) + c->operand[pos++] = diseqcmd[j].msg[k]; + } + c->operand[pos++] = burst; + c->operand[pos++] = conttone; + pad_operands(c, pos); + + 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"); + ret = -EINVAL; + } +out: + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} + +int avc_register_remote_control(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_NOTIFY; + c->subunit = AVC_SUBUNIT_TYPE_UNIT | 7; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + 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); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} + +void avc_remote_ctrl_work(struct work_struct *work) +{ + struct firedtv *fdtv = + container_of(work, struct firedtv, remote_ctrl_work); + + /* Should it be rescheduled in failure cases? */ + avc_register_remote_control(fdtv); +} + +#if 0 /* FIXME: unused */ +int avc_tuner_host2ca(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_APPLICATION_INFO; /* ca tag */ + clear_operands(c, 6, 8); + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} +#endif + +static int get_ca_object_pos(struct avc_response_frame *r) +{ + int length = 1; + + /* Check length of length field */ + if (r->operand[7] & 0x80) + length = (r->operand[7] & 0x7f) + 1; + return length + 7; +} + +static int get_ca_object_length(struct avc_response_frame *r) +{ +#if 0 /* FIXME: unused */ + int size = 0; + int i; + + if (r->operand[7] & 0x80) + for (i = 0; i < (r->operand[7] & 0x7f); i++) { + size <<= 8; + size += r->operand[8 + i]; + } +#endif + return r->operand[7]; +} + +int avc_ca_app_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; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_STATUS; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + 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); + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; + + /* FIXME: check response code and validate response data */ + + pos = get_ca_object_pos(r); + app_info[0] = (EN50221_TAG_APP_INFO >> 16) & 0xff; + app_info[1] = (EN50221_TAG_APP_INFO >> 8) & 0xff; + app_info[2] = (EN50221_TAG_APP_INFO >> 0) & 0xff; + app_info[3] = 6 + r->operand[pos + 4]; + 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 ret; +} + +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 i, pos, ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_STATUS; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + 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); + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + if (ret < 0) + goto out; + + /* FIXME: check response code and validate response data */ + + pos = get_ca_object_pos(r); + 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; + 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); + + return ret; +} + +int avc_ca_reset(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_RESET; /* ca tag */ + c->operand[6] = 0; /* more/last */ + c->operand[7] = 1; /* length */ + c->operand[8] = 0; /* force hardware reset */ + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} + +int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) +{ + 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; + int read_pos; + int write_pos; + int es_info_length; + int crc32_csum; + int ret; + + if (unlikely(avc_debug & AVC_DEBUG_APPLICATION_PMT)) + debug_pmt(msg, length); + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_CONTROL; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + if (msg[0] != EN50221_LIST_MANAGEMENT_ONLY) { + dev_info(fdtv->device, "forcing list_management to ONLY\n"); + msg[0] = EN50221_LIST_MANAGEMENT_ONLY; + } + /* We take the cmd_id from the programme level only! */ + list_management = msg[0]; + program_info_length = ((msg[4] & 0x0f) << 8) + msg[5]; + if (program_info_length > 0) + program_info_length--; /* Remove pmt_cmd_id */ + pmt_cmd_id = msg[6]; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_PMT; /* ca tag */ + c->operand[6] = 0; /* more/last */ + /* Use three bytes for length field in case length > 127 */ + c->operand[10] = list_management; + c->operand[11] = 0x01; /* pmt_cmd=OK_descramble */ + + /* TS program map table */ + + c->operand[12] = 0x02; /* Table id=2 */ + c->operand[13] = 0x80; /* Section syntax + length */ + + c->operand[15] = msg[1]; /* Program number */ + c->operand[16] = msg[2]; + c->operand[17] = msg[3]; /* Version number and current/next */ + c->operand[18] = 0x00; /* Section number=0 */ + c->operand[19] = 0x00; /* Last section number=0 */ + c->operand[20] = 0x1f; /* PCR_PID=1FFF */ + c->operand[21] = 0xff; + c->operand[22] = (program_info_length >> 8); /* Program info length */ + c->operand[23] = (program_info_length & 0xff); + + /* CA descriptors at programme level */ + read_pos = 6; + write_pos = 24; + if (program_info_length > 0) { + pmt_cmd_id = msg[read_pos++]; + if (pmt_cmd_id != 1 && pmt_cmd_id != 4) + dev_err(fdtv->device, + "invalid pmt_cmd_id %d\n", pmt_cmd_id); + if (program_info_length > sizeof(c->operand) - 4 - write_pos) { + ret = -EINVAL; + goto out; + } + + memcpy(&c->operand[write_pos], &msg[read_pos], + program_info_length); + read_pos += program_info_length; + write_pos += program_info_length; + } + while (read_pos < length) { + c->operand[write_pos++] = msg[read_pos++]; + c->operand[write_pos++] = msg[read_pos++]; + c->operand[write_pos++] = msg[read_pos++]; + es_info_length = + ((msg[read_pos] & 0x0f) << 8) + msg[read_pos + 1]; + read_pos += 2; + if (es_info_length > 0) + es_info_length--; /* Remove pmt_cmd_id */ + c->operand[write_pos++] = es_info_length >> 8; + c->operand[write_pos++] = es_info_length & 0xff; + if (es_info_length > 0) { + pmt_cmd_id = msg[read_pos++]; + if (pmt_cmd_id != 1 && pmt_cmd_id != 4) + dev_err(fdtv->device, "invalid pmt_cmd_id %d " + "at stream level\n", pmt_cmd_id); + + if (es_info_length > sizeof(c->operand) - 4 - + write_pos) { + ret = -EINVAL; + goto out; + } + + memcpy(&c->operand[write_pos], &msg[read_pos], + es_info_length); + read_pos += es_info_length; + write_pos += es_info_length; + } + } + write_pos += 4; /* CRC */ + + c->operand[7] = 0x82; + c->operand[8] = (write_pos - 10) >> 8; + c->operand[9] = (write_pos - 10) & 0xff; + c->operand[14] = write_pos - 15; + + crc32_csum = crc32_be(0, &c->operand[10], c->operand[12] - 1); + c->operand[write_pos - 4] = (crc32_csum >> 24) & 0xff; + 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); + + 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); + ret = -EACCES; + } +out: + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} + +int avc_ca_get_time_date(struct firedtv *fdtv, int *interval) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_STATUS; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_DATE_TIME; /* ca tag */ + clear_operands(c, 6, LAST_OPERAND); + + 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 ret; +} + +int avc_ca_enter_menu(struct firedtv *fdtv) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_STATUS; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_HOST2CA; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_ENTER_MENU; + clear_operands(c, 6, 8); + + fdtv->avc_data_length = 12; + ret = avc_write(fdtv); + + /* FIXME: check response code? */ + + mutex_unlock(&fdtv->avc_mutex); + + return ret; +} + +int avc_ca_get_mmi(struct firedtv *fdtv, char *mmi_object, unsigned int *len) +{ + struct avc_command_frame *c = (void *)fdtv->avc_data; + struct avc_response_frame *r = (void *)fdtv->avc_data; + int ret; + + mutex_lock(&fdtv->avc_mutex); + + c->ctype = AVC_CTYPE_STATUS; + c->subunit = AVC_SUBUNIT_TYPE_TUNER | fdtv->subunit; + c->opcode = AVC_OPCODE_VENDOR; + + c->operand[0] = SFE_VENDOR_DE_COMPANYID_0; + c->operand[1] = SFE_VENDOR_DE_COMPANYID_1; + c->operand[2] = SFE_VENDOR_DE_COMPANYID_2; + c->operand[3] = SFE_VENDOR_OPCODE_CA2HOST; + c->operand[4] = 0; /* slot */ + c->operand[5] = SFE_VENDOR_TAG_CA_MMI; + clear_operands(c, 6, LAST_OPERAND); + + 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 ret; +} + +#define CMP_OUTPUT_PLUG_CONTROL_REG_0 0xfffff0000904ULL + +static int cmp_read(struct firedtv *fdtv, u64 addr, __be32 *data) +{ + int ret; + + ret = fdtv_read(fdtv, addr, data); + if (ret < 0) + dev_err(fdtv->device, "CMP: read I/O error\n"); + + return ret; +} + +static int cmp_lock(struct firedtv *fdtv, u64 addr, __be32 data[]) +{ + int ret; + + ret = fdtv_lock(fdtv, addr, data); + if (ret < 0) + dev_err(fdtv->device, "CMP: lock I/O error\n"); + + return ret; +} + +static inline u32 get_opcr(__be32 opcr, u32 mask, u32 shift) +{ + return (be32_to_cpu(opcr) >> shift) & mask; +} + +static inline void set_opcr(__be32 *opcr, u32 value, u32 mask, u32 shift) +{ + *opcr &= ~cpu_to_be32(mask << shift); + *opcr |= cpu_to_be32((value & mask) << shift); +} + +#define get_opcr_online(v) get_opcr((v), 0x1, 31) +#define get_opcr_p2p_connections(v) get_opcr((v), 0x3f, 24) +#define get_opcr_channel(v) get_opcr((v), 0x3f, 16) + +#define set_opcr_p2p_connections(p, v) set_opcr((p), (v), 0x3f, 24) +#define set_opcr_channel(p, v) set_opcr((p), (v), 0x3f, 16) +#define set_opcr_data_rate(p, v) set_opcr((p), (v), 0x3, 14) +#define set_opcr_overhead_id(p, v) set_opcr((p), (v), 0xf, 10) + +int cmp_establish_pp_connection(struct firedtv *fdtv, int plug, int channel) +{ + __be32 old_opcr, opcr[2]; + u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2); + int attempts = 0; + int ret; + + ret = cmp_read(fdtv, opcr_address, opcr); + if (ret < 0) + return ret; + +repeat: + if (!get_opcr_online(*opcr)) { + dev_err(fdtv->device, "CMP: output offline\n"); + return -EBUSY; + } + + old_opcr = *opcr; + + if (get_opcr_p2p_connections(*opcr)) { + if (get_opcr_channel(*opcr) != channel) { + dev_err(fdtv->device, "CMP: cannot change channel\n"); + return -EBUSY; + } + dev_info(fdtv->device, "CMP: overlaying connection\n"); + + /* We don't allocate isochronous resources. */ + } else { + set_opcr_channel(opcr, channel); + set_opcr_data_rate(opcr, 2); /* S400 */ + + /* FIXME: this is for the worst case - optimize */ + set_opcr_overhead_id(opcr, 0); + + /* FIXME: allocate isochronous channel and bandwidth at IRM */ + } + + set_opcr_p2p_connections(opcr, get_opcr_p2p_connections(*opcr) + 1); + + opcr[1] = *opcr; + opcr[0] = old_opcr; + + ret = cmp_lock(fdtv, opcr_address, opcr); + if (ret < 0) + return ret; + + if (old_opcr != *opcr) { + /* + * FIXME: if old_opcr.P2P_Connections > 0, + * deallocate isochronous channel and bandwidth at IRM + */ + + if (++attempts < 6) /* arbitrary limit */ + goto repeat; + return -EBUSY; + } + + return 0; +} + +void cmp_break_pp_connection(struct firedtv *fdtv, int plug, int channel) +{ + __be32 old_opcr, opcr[2]; + u64 opcr_address = CMP_OUTPUT_PLUG_CONTROL_REG_0 + (plug << 2); + int attempts = 0; + + if (cmp_read(fdtv, opcr_address, opcr) < 0) + return; + +repeat: + if (!get_opcr_online(*opcr) || !get_opcr_p2p_connections(*opcr) || + get_opcr_channel(*opcr) != channel) { + dev_err(fdtv->device, "CMP: no connection to break\n"); + return; + } + + old_opcr = *opcr; + set_opcr_p2p_connections(opcr, get_opcr_p2p_connections(*opcr) - 1); + + opcr[1] = *opcr; + opcr[0] = old_opcr; + + if (cmp_lock(fdtv, opcr_address, opcr) < 0) + return; + + if (old_opcr != *opcr) { + /* + * FIXME: if old_opcr.P2P_Connections == 1, i.e. we were last + * owner, deallocate isochronous channel and bandwidth at IRM + * if (...) + * fdtv->backend->dealloc_resources(fdtv, channel, bw); + */ + + if (++attempts < 6) /* arbitrary limit */ + goto repeat; + } +} |