redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/drivers/media/firewire/firedtv-avc.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

1466 lines
40 KiB
C
Raw Blame History

// 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;
}
}
View git blame Copy permalink