- 根目录:
- drivers
- media
- usb
- as102
- as10x_cmd_stream.c
/*
* Abilis Systems Single DVB-T Receiver
* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
*
* 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, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include "as102_drv.h"
#include "as10x_cmd.h"
/**
* as10x_cmd_add_PID_filter - send add filter command to AS10x
* @adap: pointer to AS10x bus adapter
* @filter: TSFilter filter for DVB-T
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_add_PID_filter(struct as10x_bus_adapter_t *adap,
struct as10x_ts_filter *filter)
{
int error;
struct as10x_cmd_t *pcmd, *prsp;
pcmd = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(pcmd, (++adap->cmd_xid),
sizeof(pcmd->body.add_pid_filter.req));
/* fill command */
pcmd->body.add_pid_filter.req.proc_id =
cpu_to_le16(CONTROL_PROC_SETFILTER);
pcmd->body.add_pid_filter.req.pid = cpu_to_le16(filter->pid);
pcmd->body.add_pid_filter.req.stream_type = filter->type;
if (filter->idx < 16)
pcmd->body.add_pid_filter.req.idx = filter->idx;
else
pcmd->body.add_pid_filter.req.idx = 0xFF;
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
sizeof(pcmd->body.add_pid_filter.req)
+ HEADER_SIZE, (uint8_t *) prsp,
sizeof(prsp->body.add_pid_filter.rsp)
+ HEADER_SIZE);
} else {
error = AS10X_CMD_ERROR;
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_SETFILTER_RSP);
if (error == 0) {
/* Response OK -> get response data */
filter->idx = prsp->body.add_pid_filter.rsp.filter_id;
}
out:
return error;
}
/**
* as10x_cmd_del_PID_filter - Send delete filter command to AS10x
* @adap: pointer to AS10x bus adapte
* @pid_value: PID to delete
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_del_PID_filter(struct as10x_bus_adapter_t *adap,
uint16_t pid_value)
{
int error;
struct as10x_cmd_t *pcmd, *prsp;
pcmd = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(pcmd, (++adap->cmd_xid),
sizeof(pcmd->body.del_pid_filter.req));
/* fill command */
pcmd->body.del_pid_filter.req.proc_id =
cpu_to_le16(CONTROL_PROC_REMOVEFILTER);
pcmd->body.del_pid_filter.req.pid = cpu_to_le16(pid_value);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
sizeof(pcmd->body.del_pid_filter.req)
+ HEADER_SIZE, (uint8_t *) prsp,
sizeof(prsp->body.del_pid_filter.rsp)
+ HEADER_SIZE);
} else {
error = AS10X_CMD_ERROR;
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_REMOVEFILTER_RSP);
out:
return error;
}
/**
* as10x_cmd_start_streaming - Send start streaming command to AS10x
* @adap: pointer to AS10x bus adapter
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_start_streaming(struct as10x_bus_adapter_t *adap)
{
int error;
struct as10x_cmd_t *pcmd, *prsp;
pcmd = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(pcmd, (++adap->cmd_xid),
sizeof(pcmd->body.start_streaming.req));
/* fill command */
pcmd->body.start_streaming.req.proc_id =
cpu_to_le16(CONTROL_PROC_START_STREAMING);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
sizeof(pcmd->body.start_streaming.req)
+ HEADER_SIZE, (uint8_t *) prsp,
sizeof(prsp->body.start_streaming.rsp)
+ HEADER_SIZE);
} else {
error = AS10X_CMD_ERROR;
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_START_STREAMING_RSP);
out:
return error;
}
/**
* as10x_cmd_stop_streaming - Send stop streaming command to AS10x
* @adap: pointer to AS10x bus adapter
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_stop_streaming(struct as10x_bus_adapter_t *adap)
{
int8_t error;
struct as10x_cmd_t *pcmd, *prsp;
pcmd = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(pcmd, (++adap->cmd_xid),
sizeof(pcmd->body.stop_streaming.req));
/* fill command */
pcmd->body.stop_streaming.req.proc_id =
cpu_to_le16(CONTROL_PROC_STOP_STREAMING);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
sizeof(pcmd->body.stop_streaming.req)
+ HEADER_SIZE, (uint8_t *) prsp,
sizeof(prsp->body.stop_streaming.rsp)
+ HEADER_SIZE);
} else {
error = AS10X_CMD_ERROR;
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_STOP_STREAMING_RSP);
out:
return error;
}