static int mpq_tspp_remove_accept_all_filter(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
int ret;
MPQ_DVB_DBG_PRINT("%s: executed, channel id = %d, source = %d\n",
__func__, channel_id, source);
if (mpq_dmx_tspp_info.tsif[tsif].accept_all_filter_exists_flag == 0) {
MPQ_DVB_DBG_PRINT("%s: accept all filter doesn't exist\n",
__func__);
return 0;
}
tspp_filter.priority = TSPP_LAST_HW_FILTER_INDEX;
ret = tspp_remove_filter(0, channel_id, &tspp_filter);
if (!ret) {
mpq_dmx_tspp_info.tsif[tsif].accept_all_filter_exists_flag = 0;
MPQ_DVB_DBG_PRINT(
"%s: accept all filter removed successfully\n",
__func__);
}
return ret;
}
static int mpq_tspp_add_accept_all_filter(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
int ret;
MPQ_DVB_DBG_PRINT("%s: executed, channel id = %d, source = %d\n",
__func__, channel_id, source);
if (mpq_dmx_tspp_info.tsif[tsif].accept_all_filter_exists_flag) {
MPQ_DVB_DBG_PRINT("%s: accept all filter already exists\n",
__func__);
return 0;
}
tspp_filter.priority = TSPP_LAST_HW_FILTER_INDEX;
tspp_filter.pid = 0;
tspp_filter.mask = 0;
tspp_filter.mode = TSPP_MODE_RAW;
tspp_filter.source = source;
tspp_filter.decrypt = 0;
ret = tspp_add_filter(0, channel_id, &tspp_filter);
if (!ret) {
mpq_dmx_tspp_info.tsif[tsif].accept_all_filter_exists_flag = 1;
MPQ_DVB_DBG_PRINT(
"%s: accept all filter added successfully\n",
__func__);
}
return ret;
}
static int mpq_tspp_add_all_user_filters(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
int slot;
u16 added_count = 0;
u16 total_filters_count = 0;
MPQ_DVB_DBG_PRINT("%s: executed\n", __func__);
tspp_filter.mode = TSPP_MODE_RAW;
tspp_filter.source = source;
tspp_filter.decrypt = 0;
for (slot = 0; slot < TSPP_MAX_PID_FILTER_NUM; slot++) {
if (mpq_dmx_tspp_info.tsif[tsif].filters[slot].pid == -1)
continue;
total_filters_count++;
if (added_count > TSPP_MAX_HW_PID_FILTER_NUM)
continue;
tspp_filter.priority = mpq_tspp_allocate_hw_filter_index(tsif);
if (mpq_dmx_tspp_info.tsif[tsif].filters[slot].pid ==
TSPP_PASS_THROUGH_PID) {
tspp_filter.pid = 0;
tspp_filter.mask = 0;
} else {
tspp_filter.pid =
mpq_dmx_tspp_info.tsif[tsif].filters[slot].pid;
tspp_filter.mask = TSPP_PID_MASK;
}
MPQ_DVB_DBG_PRINT(
"%s: adding HW filter, PID = %d, mask = 0x%X, index = %d\n",
__func__, tspp_filter.pid, tspp_filter.mask,
tspp_filter.priority);
if (!tspp_add_filter(0, channel_id, &tspp_filter)) {
mpq_dmx_tspp_info.tsif[tsif].filters[slot].hw_index =
tspp_filter.priority;
added_count++;
} else {
MPQ_DVB_ERR_PRINT("%s: tspp_add_filter failed\n",
__func__);
}
}
if ((added_count != TSPP_MAX_HW_PID_FILTER_NUM) ||
(added_count != total_filters_count))
return -EINVAL;
return 0;
}
static int mpq_tspp_add_null_blocking_filters(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int ret = 0;
int i, j;
u16 full_pid_mask = 0x1FFF;
u8 mask_shift;
u8 pid_shift;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
MPQ_DVB_DBG_PRINT("%s: executed, channel id = %d, source = %d\n",
__func__, channel_id, source);
tspp_filter.mode = TSPP_MODE_RAW;
tspp_filter.source = source;
tspp_filter.decrypt = 0;
for (i = 0; i < TSPP_BLOCK_NULLS_FILTERS_NUM; i++) {
tspp_filter.priority = mpq_tspp_allocate_hw_filter_index(tsif);
if (tspp_filter.priority != i) {
MPQ_DVB_ERR_PRINT(
"%s: got unexpected HW index %d, expected %d\n",
__func__, tspp_filter.priority, i);
ret = -1;
break;
}
mask_shift = (TSPP_BLOCK_NULLS_FILTERS_NUM - 1 - i);
pid_shift = (TSPP_BLOCK_NULLS_FILTERS_NUM - i);
tspp_filter.mask =
((full_pid_mask >> mask_shift) << mask_shift);
tspp_filter.pid = ((full_pid_mask >> pid_shift) << pid_shift);
if (tspp_add_filter(0, channel_id, &tspp_filter)) {
ret = -1;
break;
}
}
if (ret) {
for (j = 0; j < i; j++) {
tspp_filter.priority = j;
mpq_tspp_release_hw_filter_index(tsif, j);
tspp_remove_filter(0, channel_id, &tspp_filter);
}
} else {
MPQ_DVB_DBG_PRINT(
"%s: NULL blocking filters added successfully\n",
__func__);
}
return ret;
}
static int mpq_tspp_dmx_start_filtering(struct dvb_demux_feed *feed)
{
int ret;
struct mpq_demux *mpq_demux = feed->demux->priv;
MPQ_DVB_DBG_PRINT(
"%s(pid=%d) executed\n",
__func__,
feed->pid);
if (mpq_demux == NULL) {
MPQ_DVB_ERR_PRINT(
"%s: invalid mpq_demux handle\n",
__func__);
return -EINVAL;
}
if (mpq_demux->source < DMX_SOURCE_DVR0) {
/* source from TSPP, need to configure tspp pipe */
ret = mpq_tspp_dmx_add_channel(feed);
if (ret < 0) {
MPQ_DVB_DBG_PRINT(
"%s: mpq_tspp_dmx_add_channel failed(%d)\n",
__func__,
ret);
return ret;
}
}
/*
* Always feed sections/PES starting from a new one and
* do not partial transfer data from older one
*/
feed->pusi_seen = 0;
ret = mpq_dmx_init_mpq_feed(feed);
if (ret) {
MPQ_DVB_ERR_PRINT(
"%s: mpq_dmx_init_mpq_feed failed(%d)\n",
__func__,
ret);
if (mpq_demux->source < DMX_SOURCE_DVR0)
mpq_tspp_dmx_remove_channel(feed);
return ret;
}
return 0;
}
static int mpq_tsif_dmx_start_filtering(struct dvb_demux_feed *feed)
{
int ret = 0;
struct mpq_demux *mpq_demux = feed->demux->priv;
MPQ_DVB_DBG_PRINT(
"%s(%d) executed\n",
__func__,
feed->pid);
if (mpq_demux == NULL) {
MPQ_DVB_ERR_PRINT(
"%s: invalid mpq_demux handle\n",
__func__);
return -EINVAL;
}
if (mpq_demux->source < DMX_SOURCE_DVR0) {
ret = mpq_tsif_dmx_start(mpq_demux);
if (ret < 0) {
MPQ_DVB_DBG_PRINT(
"%s: mpq_tsif_dmx_start failed(%d)\n",
__func__,
ret);
return ret;
}
}
feed->pusi_seen = 0;
ret = mpq_dmx_init_mpq_feed(feed);
if (ret < 0) {
MPQ_DVB_DBG_PRINT(
"%s: mpq_dmx_init_mpq_feed failed(%d)\n",
__func__,
ret);
if (mpq_demux->source < DMX_SOURCE_DVR0)
mpq_tsif_dmx_stop(mpq_demux);
return ret;
}
return ret;
}
/**
* Module exit function.
*/
static void __exit mpq_dmx_tsif_plugin_exit(void)
{
int i;
struct tsif_driver_info *tsif_driver;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
for (i = 0; i < TSIF_COUNT; i++) {
mutex_lock(&mpq_dmx_tsif_info.tsif[i].mutex);
tsif_driver = &(mpq_dmx_tsif_info.tsif[i].tsif_driver);
if (mpq_dmx_tsif_info.tsif[i].ref_count > 0) {
mpq_dmx_tsif_info.tsif[i].ref_count = 0;
if (tsif_driver->tsif_handler)
tsif_stop(tsif_driver->tsif_handler);
}
/* Detach from TSIF driver to avoid further notifications. */
if (tsif_driver->tsif_handler)
tsif_detach(tsif_driver->tsif_handler);
mutex_unlock(&mpq_dmx_tsif_info.tsif[i].mutex);
kthread_stop(mpq_dmx_tsif_info.tsif[i].thread);
mutex_destroy(&mpq_dmx_tsif_info.tsif[i].mutex);
}
mpq_dmx_plugin_exit();
}
static void __exit mpq_dmx_tspp_plugin_exit(void)
{
int i;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
for (i = 0; i < TSIF_COUNT; i++) {
mutex_lock(&mpq_dmx_tspp_info.tsif[i].mutex);
/*
* Note: tspp_close_channel will also free the TSPP buffers
* even if we allocated them ourselves,
* using our free function.
*/
if (mpq_dmx_tspp_info.tsif[i].channel_ref) {
tspp_unregister_notification(0,
TSPP_CHANNEL_ID(i, TSPP_CHANNEL));
tspp_close_channel(0,
TSPP_CHANNEL_ID(i, TSPP_CHANNEL));
if (allocation_mode ==
MPQ_DMX_TSPP_CONTIGUOUS_PHYS_ALLOC)
mpq_dmx_channel_mem_free(i);
}
if (mpq_dmx_tspp_info.tsif[i].aggregate_ids)
vfree(mpq_dmx_tspp_info.tsif[i].aggregate_ids);
mutex_unlock(&mpq_dmx_tspp_info.tsif[i].mutex);
kthread_stop(mpq_dmx_tspp_info.tsif[i].thread);
mutex_destroy(&mpq_dmx_tspp_info.tsif[i].mutex);
}
mpq_dmx_plugin_exit();
}
static int mpq_sw_dmx_start_filtering(struct dvb_demux_feed *feed)
{
int ret = -EINVAL;
struct mpq_demux *mpq_demux = feed->demux->priv;
MPQ_DVB_DBG_PRINT("%s(pid=%d) executed\n", __func__, feed->pid);
if (mpq_demux == NULL) {
MPQ_DVB_ERR_PRINT("%s: invalid mpq_demux handle\n", __func__);
goto out;
}
if (mpq_demux->source < DMX_SOURCE_DVR0) {
MPQ_DVB_ERR_PRINT("%s: only DVR source is supported (%d)\n",
__func__, mpq_demux->source);
goto out;
}
/*
* Always feed sections/PES starting from a new one and
* do not partial transfer data from older one
*/
feed->pusi_seen = 0;
ret = mpq_dmx_init_mpq_feed(feed);
if (ret)
MPQ_DVB_ERR_PRINT("%s: mpq_dmx_init_mpq_feed failed(%d)\n",
__func__, ret);
out:
return ret;
}
/**
* Stop filtering according to feed parameter.
*
* @feed: the feed we are working on.
*
* Return error code.
*/
static int mpq_tsif_dmx_stop_filtering(struct dvb_demux_feed *feed)
{
int ret = 0;
struct mpq_demux *mpq_demux = feed->demux->priv;
MPQ_DVB_DBG_PRINT(
"%s(%d) executed\n",
__func__,
feed->pid);
if (mpq_demux == NULL) {
MPQ_DVB_ERR_PRINT(
"%s: invalid mpq_demux handle\n",
__func__);
return -EINVAL;
}
mpq_dmx_terminate_feed(feed);
if (mpq_demux->source < DMX_SOURCE_DVR0) {
/* Source from TSIF, need to configure TSIF hardware */
ret = mpq_tsif_dmx_stop(mpq_demux);
}
return ret;
}
static void mpq_dmx_tspp_aggregated_process(int tsif, int channel_id)
{
const struct tspp_data_descriptor *tspp_data_desc;
struct mpq_demux *mpq_demux = mpq_dmx_tspp_info.tsif[tsif].mpq_demux;
struct sdmx_buff_descr input;
size_t aggregate_len = 0;
size_t aggregate_count = 0;
phys_addr_t buff_start_addr_phys;
phys_addr_t buff_current_addr_phys = 0;
u32 notif_size;
int i;
while ((tspp_data_desc = tspp_get_buffer(0, channel_id)) != NULL) {
if (0 == aggregate_count)
buff_current_addr_phys = tspp_data_desc->phys_base;
notif_size = tspp_data_desc->size / TSPP_RAW_TTS_SIZE;
mpq_dmx_tspp_info.tsif[tsif].aggregate_ids[aggregate_count] =
tspp_data_desc->id;
aggregate_len += tspp_data_desc->size;
aggregate_count++;
mpq_demux->hw_notification_size += notif_size;
if (mpq_demux->num_active_feeds > mpq_demux->num_secure_feeds)
mpq_dmx_tspp_swfilter_desc(mpq_demux, tspp_data_desc);
}
if (!aggregate_count)
return;
buff_start_addr_phys =
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_phys_base;
if (buff_start_addr_phys > 0xFFFFFFFF)
MPQ_DVB_ERR_PRINT(
"%s: WARNNING - physical address %pa is larger than 32bits!\n",
__func__, &buff_start_addr_phys);
input.base_addr = (void *)(u32)buff_start_addr_phys;
input.size = mpq_dmx_tspp_info.tsif[tsif].buffer_count *
TSPP_DESCRIPTOR_SIZE;
if (mpq_sdmx_is_loaded() && mpq_demux->sdmx_filter_count) {
MPQ_DVB_DBG_PRINT(
"%s: SDMX Processing %d descriptors: %d bytes at start address 0x%x, read offset %d\n",
__func__, aggregate_count, aggregate_len,
(unsigned int)input.base_addr,
(int)(buff_current_addr_phys - buff_start_addr_phys));
mpq_sdmx_process(mpq_demux, &input, aggregate_len,
buff_current_addr_phys - buff_start_addr_phys,
TSPP_RAW_TTS_SIZE);
}
for (i = 0; i < aggregate_count; i++)
tspp_release_buffer(0, channel_id,
mpq_dmx_tspp_info.tsif[tsif].aggregate_ids[i]);
}
static int mpq_tspp_dmx_stop_filtering(struct dvb_demux_feed *feed)
{
MPQ_DVB_DBG_PRINT(
"%s(%d) executed\n",
__func__,
feed->pid);
return 0;
}
ssize_t mpq_streambuffer_data_write(
struct mpq_streambuffer *sbuff,
const u8 *buf, size_t len)
{
int res;
if ((NULL == sbuff) || (NULL == buf))
return -EINVAL;
if (MPQ_STREAMBUFFER_BUFFER_MODE_RING == sbuff->mode) {
if (unlikely(dvb_ringbuffer_free(&sbuff->raw_data) < len))
return -ENOSPC;
/*
* Secure buffers are not permitted to be mapped into kernel
* memory, and so buffer base address may be NULL
*/
if (NULL == sbuff->raw_data.data)
return -EPERM;
res = dvb_ringbuffer_write(&sbuff->raw_data, buf, len);
wake_up_all(&sbuff->raw_data.queue);
} else {
/* Linear buffer group */
struct mpq_streambuffer_buffer_desc *desc;
desc = (struct mpq_streambuffer_buffer_desc *)
&sbuff->raw_data.data[sbuff->raw_data.pwrite];
/*
* Secure buffers are not permitted to be mapped into kernel
* memory, and so buffer base address may be NULL
*/
if (NULL == desc->base)
return -EPERM;
if ((sbuff->pending_buffers_count == sbuff->buffers_num) ||
((desc->size - desc->write_ptr) < len)) {
MPQ_DVB_ERR_PRINT(
"%s: No space available! %d pending buffers out of %d total buffers. write_ptr=%d, size=%d\n",
__func__,
sbuff->pending_buffers_count,
sbuff->buffers_num,
desc->write_ptr,
desc->size);
return -ENOSPC;
}
memcpy(desc->base + desc->write_ptr, buf, len);
desc->write_ptr += len;
MPQ_DVB_DBG_PRINT(
"%s: copied %d data bytes. handle=%d, write_ptr=%d\n",
__func__, len, desc->handle, desc->write_ptr);
res = len;
}
return res;
}
static int mpq_tsif_dmx_write_to_decoder(
struct dvb_demux_feed *feed,
const u8 *buf,
size_t len)
{
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
if (len > TSIF_PKT_SIZE)
MPQ_DVB_DBG_PRINT(
"%s: warnning - len larger than one packet\n",
__func__);
if (dvb_dmx_is_video_feed(feed))
return mpq_dmx_process_video_packet(feed, buf);
if (dvb_dmx_is_pcr_feed(feed))
return mpq_dmx_process_pcr_packet(feed, buf);
return 0;
}
int mpq_streambuffer_pkt_write(
struct mpq_streambuffer *sbuff,
struct mpq_streambuffer_packet_header *packet,
u8 *user_data)
{
ssize_t idx;
size_t len;
if ((NULL == sbuff) || (NULL == packet))
return -EINVAL;
MPQ_DVB_DBG_PRINT(
"%s: handle=%d, offset=%d, len=%d\n",
__func__,
packet->raw_data_handle,
packet->raw_data_offset,
packet->raw_data_len);
len = sizeof(struct mpq_streambuffer_packet_header) +
packet->user_data_len;
/* Make sure enough space available for packet header */
if (dvb_ringbuffer_free(&sbuff->packet_data) < len)
return -ENOSPC;
/* Starting writing packet header */
idx = dvb_ringbuffer_pkt_start(&sbuff->packet_data, len);
/* Write non-user private data header */
dvb_ringbuffer_write(&sbuff->packet_data,
(u8 *)packet,
sizeof(struct mpq_streambuffer_packet_header));
/* Write user's own private data header */
dvb_ringbuffer_write(&sbuff->packet_data,
user_data,
packet->user_data_len);
dvb_ringbuffer_pkt_close(&sbuff->packet_data, idx);
/* Move write pointer to next linear buffer for subsequent writes */
if ((MPQ_STREAMBUFFER_BUFFER_MODE_LINEAR == sbuff->mode) &&
(packet->raw_data_len > 0)) {
if (sbuff->pending_buffers_count == sbuff->buffers_num)
return -ENOSPC;
DVB_RINGBUFFER_PUSH(&sbuff->raw_data,
sizeof(struct mpq_streambuffer_buffer_desc));
sbuff->pending_buffers_count++;
}
wake_up_all(&sbuff->packet_data.queue);
return 0;
}
static int mpq_tspp_dmx_start_filtering(struct dvb_demux_feed *feed)
{
MPQ_DVB_DBG_PRINT(
"%s(%d) executed\n",
__func__,
feed->pid);
/* Always feed sections/PES starting from a new one and
* do not partial transfer data from older one
*/
feed->pusi_seen = 0;
return 0;
}
static int mpq_sw_dmx_stop_filtering(struct dvb_demux_feed *feed)
{
int ret;
MPQ_DVB_DBG_PRINT("%s(%d) executed\n", __func__, feed->pid);
ret = mpq_dmx_terminate_feed(feed);
if (ret)
MPQ_DVB_ERR_PRINT("%s: mpq_dmx_terminate_feed failed(%d)\n",
__func__, ret);
return ret;
}
/**
* Callback function from TSIF driver when new data is ready.
*
* @user: user-data holding TSIF number
*/
static void mpq_tsif_callback(void *user)
{
int tsif = (int)user;
struct mpq_demux *mpq_demux;
MPQ_DVB_DBG_PRINT("%s executed, tsif = %d\n", __func__, tsif);
/* Save statistics on TSIF notifications */
mpq_demux = mpq_dmx_tsif_info.tsif[tsif].mpq_demux;
mpq_dmx_update_hw_statistics(mpq_demux);
atomic_inc(&mpq_dmx_tsif_info.tsif[tsif].data_cnt);
wake_up(&mpq_dmx_tsif_info.tsif[tsif].wait_queue);
}
static int mpq_tspp_remove_all_user_filters(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int ret = 0;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
int i;
MPQ_DVB_DBG_PRINT("%s: executed\n", __func__);
for (i = 0; i < TSPP_MAX_HW_PID_FILTER_NUM; i++) {
tspp_filter.priority = i;
MPQ_DVB_DBG_PRINT("%s: Removing HW filter %d\n",
__func__, tspp_filter.priority);
if (tspp_remove_filter(0, channel_id, &tspp_filter))
ret = -1;
mpq_tspp_release_hw_filter_index(tsif, i);
mpq_dmx_tspp_info.tsif[tsif].filters[i].hw_index = -1;
}
return ret;
}
/**
* TSIF demux plugin write-to-decoder function.
*
* @feed: The feed we are working on.
* @buf: The data buffer to process.
* @len: The data buffer length.
*
* Return error code
*/
static int mpq_tsif_dmx_write_to_decoder(
struct dvb_demux_feed *feed,
const u8 *buf,
size_t len)
{
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
/*
* It is assumed that this function is called once for each
* TS packet of the relevant feed.
*/
if (len > TSIF_PKT_SIZE)
MPQ_DVB_DBG_PRINT(
"%s: warnning - len larger than one packet\n",
__func__);
if (dvb_dmx_is_video_feed(feed))
return mpq_dmx_process_video_packet(feed, buf);
if (dvb_dmx_is_pcr_feed(feed))
return mpq_dmx_process_pcr_packet(feed, buf);
return 0;
}
static int mpq_tspp_dmx_stop_filtering(struct dvb_demux_feed *feed)
{
int ret = 0;
struct mpq_demux *mpq_demux = feed->demux->priv;
MPQ_DVB_DBG_PRINT(
"%s(%d) executed\n",
__func__,
feed->pid);
mpq_dmx_terminate_feed(feed);
if (mpq_demux->source < DMX_SOURCE_DVR0) {
/* source from TSPP, need to configure tspp pipe */
ret = mpq_tspp_dmx_remove_channel(feed);
}
return ret;
}
/**
* Allocate memory for channel output of specific TSIF.
*
* @tsif: The TSIF id to which memory should be allocated.
*
* Return error status
*/
static int mpq_dmx_channel_mem_alloc(int tsif)
{
int result;
size_t len;
MPQ_DVB_DBG_PRINT("%s(%d)\n", __func__, tsif);
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle =
ion_alloc(mpq_dmx_tspp_info.ion_client,
(mpq_dmx_tspp_info.tsif[tsif].buffer_count *
TSPP_DESCRIPTOR_SIZE),
SZ_4K,
ION_HEAP(tspp_out_ion_heap),
0); /* non-cached */
if (IS_ERR_OR_NULL(mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle)) {
MPQ_DVB_ERR_PRINT("%s: ion_alloc() failed\n", __func__);
mpq_dmx_channel_mem_free(tsif);
return -ENOMEM;
}
/* save virtual base address of heap */
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_virt_base =
ion_map_kernel(mpq_dmx_tspp_info.ion_client,
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle);
if (IS_ERR_OR_NULL(mpq_dmx_tspp_info.tsif[tsif].
ch_mem_heap_virt_base)) {
MPQ_DVB_ERR_PRINT("%s: ion_map_kernel() failed\n", __func__);
mpq_dmx_channel_mem_free(tsif);
return -ENOMEM;
}
/* save physical base address of heap */
result = ion_phys(mpq_dmx_tspp_info.ion_client,
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle,
&(mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_phys_base), &len);
if (result < 0) {
MPQ_DVB_ERR_PRINT("%s: ion_phys() failed\n", __func__);
mpq_dmx_channel_mem_free(tsif);
return -ENOMEM;
}
return 0;
}
/**
* Demux TS packets from TSPP by secure-demux.
* The fucntion assumes the buffer is physically contiguous
* and that TSPP descriptors are continuous in memory.
*
* @tsif: The TSIF interface to process its packets
* @channel_id: the TSPP output pipe with the TS packets
*/
static void mpq_dmx_tspp_aggregated_process(int tsif, int channel_id)
{
const struct tspp_data_descriptor *tspp_data_desc;
struct mpq_demux *mpq_demux = mpq_dmx_tspp_info.tsif[tsif].mpq_demux;
struct sdmx_buff_descr input;
size_t aggregate_len = 0;
size_t aggregate_count = 0;
phys_addr_t buff_start_addr;
phys_addr_t buff_current_addr;
int i;
while ((tspp_data_desc = tspp_get_buffer(0, channel_id)) != NULL) {
if (0 == aggregate_count)
buff_current_addr = tspp_data_desc->phys_base;
mpq_dmx_tspp_info.tsif[tsif].aggregate_ids[aggregate_count] =
tspp_data_desc->id;
aggregate_len += tspp_data_desc->size;
aggregate_count++;
mpq_demux->hw_notification_size +=
tspp_data_desc->size / TSPP_RAW_TTS_SIZE;
}
if (!aggregate_count)
return;
buff_start_addr = mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_phys_base;
input.base_addr = (void *)buff_start_addr;
input.size = mpq_dmx_tspp_info.tsif[tsif].buffer_count *
TSPP_DESCRIPTOR_SIZE;
MPQ_DVB_DBG_PRINT(
"%s: Processing %d descriptors: %d bytes at start address 0x%x, read offset %d\n",
__func__, aggregate_count, aggregate_len,
(unsigned int)input.base_addr,
buff_current_addr - buff_start_addr);
mpq_sdmx_process(mpq_demux, &input, aggregate_len,
buff_current_addr - buff_start_addr);
for (i = 0; i < aggregate_count; i++)
tspp_release_buffer(0, channel_id,
mpq_dmx_tspp_info.tsif[tsif].aggregate_ids[i]);
}
/**
* Stop TSIF operation and detach from TSIF driver.
*
* @mpq_demux: the mpq_demux we are working on.
*
* Return error code.
*/
static int mpq_tsif_dmx_stop(struct mpq_demux *mpq_demux)
{
int tsif;
struct tsif_driver_info *tsif_driver;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
/* determine the TSIF we are reading from */
if (mpq_demux->source == DMX_SOURCE_FRONT0) {
tsif = 0;
} else if (mpq_demux->source == DMX_SOURCE_FRONT1) {
tsif = 1;
} else {
/* invalid source */
MPQ_DVB_ERR_PRINT(
"%s: invalid input source (%d)\n",
__func__,
mpq_demux->source);
return -EINVAL;
}
if (mutex_lock_interruptible(&mpq_dmx_tsif_info.tsif[tsif].mutex))
return -ERESTARTSYS;
mpq_dmx_tsif_info.tsif[tsif].ref_count--;
if (mpq_dmx_tsif_info.tsif[tsif].ref_count == 0) {
tsif_driver = &(mpq_dmx_tsif_info.tsif[tsif].tsif_driver);
tsif_stop(tsif_driver->tsif_handler);
tsif_detach(tsif_driver->tsif_handler);
tsif_driver->tsif_handler = NULL;
tsif_driver->data_buffer = NULL;
tsif_driver->buffer_size = 0;
atomic_set(&mpq_dmx_tsif_info.tsif[tsif].data_cnt, 0);
mpq_dmx_tsif_info.tsif[tsif].mpq_demux = NULL;
}
mutex_unlock(&mpq_dmx_tsif_info.tsif[tsif].mutex);
return 0;
}
/**
* Free memory of channel output of specific TSIF.
*
* @tsif: The TSIF id to which memory should be freed.
*/
static void mpq_dmx_channel_mem_free(int tsif)
{
MPQ_DVB_DBG_PRINT("%s(%d)\n", __func__, tsif);
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_phys_base = 0;
if (!IS_ERR_OR_NULL(mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle)) {
if (!IS_ERR_OR_NULL(mpq_dmx_tspp_info.tsif[tsif].
ch_mem_heap_virt_base))
ion_unmap_kernel(mpq_dmx_tspp_info.ion_client,
mpq_dmx_tspp_info.tsif[tsif].
ch_mem_heap_handle);
ion_free(mpq_dmx_tspp_info.ion_client,
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle);
}
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_virt_base = NULL;
mpq_dmx_tspp_info.tsif[tsif].ch_mem_heap_handle = NULL;
}
static int mpq_tspp_remove_null_blocking_filters(int channel_id,
enum tspp_source source)
{
struct tspp_filter tspp_filter;
int tsif = TSPP_GET_TSIF_NUM(channel_id);
int ret = 0;
int i;
MPQ_DVB_DBG_PRINT("%s: executed, channel id = %d, source = %d\n",
__func__, channel_id, source);
for (i = 0; i < TSPP_BLOCK_NULLS_FILTERS_NUM; i++) {
tspp_filter.priority = i;
if (tspp_remove_filter(0, channel_id, &tspp_filter)) {
MPQ_DVB_ERR_PRINT("%s: failed to remove filter %d\n",
__func__, i);
ret = -1;
}
mpq_tspp_release_hw_filter_index(tsif, i);
}
return ret;
}
static int mpq_tspp_dmx_init(
struct dvb_adapter *mpq_adapter,
struct mpq_demux *mpq_demux)
{
int result;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
mpq_dmx_tspp_info.ion_client = mpq_demux->ion_client;
/* Set the kernel-demux object capabilities */
mpq_demux->demux.dmx.capabilities =
DMX_TS_FILTERING |
DMX_PES_FILTERING |
DMX_SECTION_FILTERING |
DMX_MEMORY_BASED_FILTERING |
DMX_CRC_CHECKING |
DMX_TS_DESCRAMBLING;
/* Set dvb-demux "virtual" function pointers */
mpq_demux->demux.priv = (void *)mpq_demux;
mpq_demux->demux.filternum = TSPP_MAX_SECTION_FILTER_NUM;
mpq_demux->demux.feednum = MPQ_MAX_DMX_FILES;
mpq_demux->demux.start_feed = mpq_tspp_dmx_start_filtering;
mpq_demux->demux.stop_feed = mpq_tspp_dmx_stop_filtering;
mpq_demux->demux.write_to_decoder = mpq_tspp_dmx_write_to_decoder;
mpq_demux->demux.decoder_fullness_init = mpq_dmx_decoder_fullness_init;
mpq_demux->demux.decoder_fullness_wait = mpq_dmx_decoder_fullness_wait;
mpq_demux->demux.decoder_fullness_abort =
mpq_dmx_decoder_fullness_abort;
mpq_demux->demux.decoder_buffer_status = mpq_dmx_decoder_buffer_status;
mpq_demux->demux.reuse_decoder_buffer = mpq_dmx_reuse_decoder_buffer;
mpq_demux->demux.set_secure_mode = mpq_dmx_set_secure_mode;
/* Initialize dvb_demux object */
result = dvb_dmx_init(&mpq_demux->demux);
if (result < 0) {
MPQ_DVB_ERR_PRINT("%s: dvb_dmx_init failed\n", __func__);
goto init_failed;
}
/* Now initailize the dmx-dev object */
mpq_demux->dmxdev.filternum = MPQ_MAX_DMX_FILES;
mpq_demux->dmxdev.demux = &mpq_demux->demux.dmx;
mpq_demux->dmxdev.capabilities =
DMXDEV_CAP_DUPLEX |
DMXDEV_CAP_PULL_MODE |
DMXDEV_CAP_INDEXING;
mpq_demux->dmxdev.demux->set_source = mpq_dmx_set_source;
mpq_demux->dmxdev.demux->get_caps = mpq_tspp_dmx_get_caps;
mpq_demux->dmxdev.demux->map_buffer = mpq_dmx_map_buffer;
mpq_demux->dmxdev.demux->unmap_buffer = mpq_dmx_unmap_buffer;
mpq_demux->dmxdev.demux->write = mpq_dmx_write;
result = dvb_dmxdev_init(&mpq_demux->dmxdev, mpq_adapter);
if (result < 0) {
MPQ_DVB_ERR_PRINT("%s: dvb_dmxdev_init failed (errno=%d)\n",
__func__,
result);
goto init_failed_dmx_release;
}
/* Extend dvb-demux debugfs with TSPP statistics. */
mpq_dmx_init_hw_statistics(mpq_demux);
return 0;
init_failed_dmx_release:
dvb_dmx_release(&mpq_demux->demux);
init_failed:
return result;
}
static int __init mpq_dmx_tspp_plugin_init(void)
{
int i;
int j;
int ret;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
for (i = 0; i < TSIF_COUNT; i++) {
mpq_dmx_tspp_info.tsif[i].buffer_count =
TSPP_BUFFER_COUNT(tspp_out_buffer_size);
mpq_dmx_tspp_info.tsif[i].aggregate_ids =
vzalloc(mpq_dmx_tspp_info.tsif[i].buffer_count *
sizeof(int));
if (NULL == mpq_dmx_tspp_info.tsif[i].aggregate_ids) {
MPQ_DVB_ERR_PRINT(
"%s: Failed to allocate memory for buffer descriptors aggregation\n",
__func__);
for (j = 0; j < i; j++) {
kthread_stop(mpq_dmx_tspp_info.tsif[j].thread);
vfree(mpq_dmx_tspp_info.tsif[j].aggregate_ids);
mutex_destroy(&mpq_dmx_tspp_info.tsif[j].mutex);
}
return -ENOMEM;
}
mpq_dmx_tspp_info.tsif[i].channel_ref = 0;
mpq_dmx_tspp_info.tsif[i].buff_index = 0;
mpq_dmx_tspp_info.tsif[i].ch_mem_heap_handle = NULL;
mpq_dmx_tspp_info.tsif[i].ch_mem_heap_virt_base = NULL;
mpq_dmx_tspp_info.tsif[i].ch_mem_heap_phys_base = 0;
atomic_set(&mpq_dmx_tspp_info.tsif[i].data_cnt, 0);
for (j = 0; j < TSPP_MAX_PID_FILTER_NUM; j++) {
mpq_dmx_tspp_info.tsif[i].filters[j].pid = -1;
mpq_dmx_tspp_info.tsif[i].filters[j].ref_count = 0;
}
snprintf(mpq_dmx_tspp_info.tsif[i].name,
TSIF_NAME_LENGTH,
"dmx_tsif%d",
i);
init_waitqueue_head(&mpq_dmx_tspp_info.tsif[i].wait_queue);
mpq_dmx_tspp_info.tsif[i].thread =
kthread_run(
mpq_dmx_tspp_thread, (void *)i,
mpq_dmx_tspp_info.tsif[i].name);
if (IS_ERR(mpq_dmx_tspp_info.tsif[i].thread)) {
vfree(mpq_dmx_tspp_info.tsif[i].aggregate_ids);
for (j = 0; j < i; j++) {
kthread_stop(mpq_dmx_tspp_info.tsif[j].thread);
vfree(mpq_dmx_tspp_info.tsif[j].aggregate_ids);
mutex_destroy(&mpq_dmx_tspp_info.tsif[j].mutex);
}
MPQ_DVB_ERR_PRINT(
"%s: kthread_run failed\n",
__func__);
return -ENOMEM;
}
mutex_init(&mpq_dmx_tspp_info.tsif[i].mutex);
}
ret = mpq_dmx_plugin_init(mpq_tspp_dmx_init);
if (ret < 0) {
MPQ_DVB_ERR_PRINT(
"%s: mpq_dmx_plugin_init failed (errno=%d)\n",
__func__,
ret);
for (i = 0; i < TSIF_COUNT; i++) {
kthread_stop(mpq_dmx_tspp_info.tsif[i].thread);
vfree(mpq_dmx_tspp_info.tsif[i].aggregate_ids);
mutex_destroy(&mpq_dmx_tspp_info.tsif[i].mutex);
}
}
return ret;
}
/**
* Attach to TSIF driver and start TSIF operation.
*
* @mpq_demux: the mpq_demux we are working on.
*
* Return error code.
*/
static int mpq_tsif_dmx_start(struct mpq_demux *mpq_demux)
{
int ret = 0;
int tsif;
struct tsif_driver_info *tsif_driver;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
/* determine the TSIF we are reading from */
if (mpq_demux->source == DMX_SOURCE_FRONT0) {
tsif = 0;
} else if (mpq_demux->source == DMX_SOURCE_FRONT1) {
tsif = 1;
} else {
/* invalid source */
MPQ_DVB_ERR_PRINT(
"%s: invalid input source (%d)\n",
__func__,
mpq_demux->source);
return -EINVAL;
}
if (mutex_lock_interruptible(&mpq_dmx_tsif_info.tsif[tsif].mutex))
return -ERESTARTSYS;
if (mpq_dmx_tsif_info.tsif[tsif].ref_count == 0) {
tsif_driver = &(mpq_dmx_tsif_info.tsif[tsif].tsif_driver);
/* Attach to TSIF driver */
tsif_driver->tsif_handler =
tsif_attach(tsif, mpq_tsif_callback, (void *)tsif);
if (IS_ERR_OR_NULL(tsif_driver->tsif_handler)) {
tsif_driver->tsif_handler = NULL;
mutex_unlock(&mpq_dmx_tsif_info.tsif[tsif].mutex);
MPQ_DVB_DBG_PRINT("%s: tsif_attach(%d) failed\n",
__func__, tsif);
return -ENODEV;
}
ret = tsif_set_clk_inverse(tsif_driver->tsif_handler,
clock_inv);
if (ret < 0) {
MPQ_DVB_ERR_PRINT(
"%s: tsif_set_clk_inverse (%d) failed\n",
__func__, clock_inv);
}
/* Set TSIF driver mode */
ret = tsif_set_mode(tsif_driver->tsif_handler, tsif_mode);
if (ret < 0) {
MPQ_DVB_ERR_PRINT("%s: tsif_set_mode (%d) failed\n",
__func__, tsif_mode);
}
/* Set TSIF buffer configuration */
ret = tsif_set_buf_config(tsif_driver->tsif_handler,
threshold,
DMX_TSIF_CHUNKS_IN_BUF);
if (ret < 0) {
MPQ_DVB_ERR_PRINT(
"%s: tsif_set_buf_config (%d, %d) failed\n",
__func__, threshold,
DMX_TSIF_CHUNKS_IN_BUF);
MPQ_DVB_ERR_PRINT("Using default TSIF driver values\n");
}
/* Start TSIF driver */
ret = tsif_start(tsif_driver->tsif_handler);
if (ret < 0) {
mutex_unlock(&mpq_dmx_tsif_info.tsif[tsif].mutex);
MPQ_DVB_ERR_PRINT("%s: tsif_start failed\n", __func__);
return ret;
}
/*
* Get data buffer information from TSIF driver
* (must be called after tsif_start)
*/
tsif_get_info(tsif_driver->tsif_handler,
&(tsif_driver->data_buffer),
&(tsif_driver->buffer_size));
/* save pointer to the mpq_demux we are working on */
mpq_dmx_tsif_info.tsif[tsif].mpq_demux = mpq_demux;
}
mpq_dmx_tsif_info.tsif[tsif].ref_count++;
mutex_unlock(&mpq_dmx_tsif_info.tsif[tsif].mutex);
return ret;
}
/**
* Module initialization function.
*
* Return error code
*/
static int __init mpq_dmx_tsif_plugin_init(void)
{
int i;
int ret;
MPQ_DVB_DBG_PRINT("%s executed\n", __func__);
/* check module parameters validity */
if (threshold < 1) {
MPQ_DVB_ERR_PRINT(
"%s: invalid threshold parameter, using %d instead\n",
__func__, DMX_TSIF_PACKETS_IN_CHUNK_DEF);
threshold = DMX_TSIF_PACKETS_IN_CHUNK_DEF;
}
if ((tsif_mode < 1) || (tsif_mode > 3)) {
MPQ_DVB_ERR_PRINT(
"%s: invalid mode parameter, using %d instead\n",
__func__, DMX_TSIF_DRIVER_MODE_DEF);
tsif_mode = DMX_TSIF_DRIVER_MODE_DEF;
}
for (i = 0; i < TSIF_COUNT; i++) {
snprintf(mpq_dmx_tsif_info.tsif[i].name,
TSIF_NAME_LENGTH,
"dmx_tsif%d",
i);
atomic_set(&mpq_dmx_tsif_info.tsif[i].data_cnt, 0);
init_waitqueue_head(&mpq_dmx_tsif_info.tsif[i].wait_queue);
mpq_dmx_tsif_info.tsif[i].thread =
kthread_run(
mpq_dmx_tsif_thread, (void *)i,
mpq_dmx_tsif_info.tsif[i].name);
if (IS_ERR(mpq_dmx_tsif_info.tsif[i].thread)) {
int j;
for (j = 0; j < i; j++) {
kthread_stop(mpq_dmx_tsif_info.tsif[j].thread);
mutex_destroy(&mpq_dmx_tsif_info.tsif[j].mutex);
}
MPQ_DVB_ERR_PRINT(
"%s: kthread_run failed\n",
__func__);
return -ENOMEM;
}
mutex_init(&mpq_dmx_tsif_info.tsif[i].mutex);
mpq_dmx_tsif_info.tsif[i].tsif_driver.tsif_handler = NULL;
mpq_dmx_tsif_info.tsif[i].ref_count = 0;
}
ret = mpq_dmx_plugin_init(mpq_tsif_dmx_init);
if (ret < 0) {
MPQ_DVB_ERR_PRINT(
"%s: mpq_dmx_plugin_init failed (errno=%d)\n",
__func__,
ret);
for (i = 0; i < TSIF_COUNT; i++) {
kthread_stop(mpq_dmx_tsif_info.tsif[i].thread);
mutex_destroy(&mpq_dmx_tsif_info.tsif[i].mutex);
}
}
return ret;
}