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WSL2-Linux-Kernel/drivers/media/firewire/firedtv-avc.c

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C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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>
*/
#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 <media/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, unsigned 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, unsigned 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;
}
}
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