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/*
* Abilis Systems Single DVB-T Receiver
* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
* Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.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_turn_on - send turn on command to AS10x
* @adap: pointer to AS10x bus adapter
*
* Return 0 when no error, < 0 in case of error.
*/
int as10x_cmd_turn_on(struct as10x_bus_adapter_t *adap)
{
int error = AS10X_CMD_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.turn_on.req));
/* fill command */
pcmd->body.turn_on.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNON);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
sizeof(pcmd->body.turn_on.req) +
HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.turn_on.rsp) +
HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNON_RSP);
out:
return error;
}
/**
* as10x_cmd_turn_off - send turn off command to AS10x
* @adap: pointer to AS10x bus adapter
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_turn_off(struct as10x_bus_adapter_t *adap)
{
int error = AS10X_CMD_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.turn_off.req));
/* fill command */
pcmd->body.turn_off.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNOFF);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(
adap, (uint8_t *) pcmd,
sizeof(pcmd->body.turn_off.req) + HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.turn_off.rsp) + HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNOFF_RSP);
out:
return error;
}
/**
* as10x_cmd_set_tune - send set tune command to AS10x
* @adap: pointer to AS10x bus adapter
* @ptune: tune parameters
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_set_tune(struct as10x_bus_adapter_t *adap,
struct as10x_tune_args *ptune)
{
int error = AS10X_CMD_ERROR;
struct as10x_cmd_t *preq, *prsp;
preq = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(preq, (++adap->cmd_xid),
sizeof(preq->body.set_tune.req));
/* fill command */
preq->body.set_tune.req.proc_id = cpu_to_le16(CONTROL_PROC_SETTUNE);
preq->body.set_tune.req.args.freq = (__force __u32)cpu_to_le32(ptune->freq);
preq->body.set_tune.req.args.bandwidth = ptune->bandwidth;
preq->body.set_tune.req.args.hier_select = ptune->hier_select;
preq->body.set_tune.req.args.modulation = ptune->modulation;
preq->body.set_tune.req.args.hierarchy = ptune->hierarchy;
preq->body.set_tune.req.args.interleaving_mode =
ptune->interleaving_mode;
preq->body.set_tune.req.args.code_rate = ptune->code_rate;
preq->body.set_tune.req.args.guard_interval = ptune->guard_interval;
preq->body.set_tune.req.args.transmission_mode =
ptune->transmission_mode;
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap,
(uint8_t *) preq,
sizeof(preq->body.set_tune.req)
+ HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.set_tune.rsp)
+ HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_SETTUNE_RSP);
out:
return error;
}
/**
* as10x_cmd_get_tune_status - send get tune status command to AS10x
* @adap: pointer to AS10x bus adapter
* @pstatus: pointer to updated status structure of the current tune
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_get_tune_status(struct as10x_bus_adapter_t *adap,
struct as10x_tune_status *pstatus)
{
int error = AS10X_CMD_ERROR;
struct as10x_cmd_t *preq, *prsp;
preq = adap->cmd;
prsp = adap->rsp;
/* prepare command */
as10x_cmd_build(preq, (++adap->cmd_xid),
sizeof(preq->body.get_tune_status.req));
/* fill command */
preq->body.get_tune_status.req.proc_id =
cpu_to_le16(CONTROL_PROC_GETTUNESTAT);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(
adap,
(uint8_t *) preq,
sizeof(preq->body.get_tune_status.req) + HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.get_tune_status.rsp) + HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTUNESTAT_RSP);
if (error < 0)
goto out;
/* Response OK -> get response data */
pstatus->tune_state = prsp->body.get_tune_status.rsp.sts.tune_state;
pstatus->signal_strength =
le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.signal_strength);
pstatus->PER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.PER);
pstatus->BER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.BER);
out:
return error;
}
/**
* as10x_cmd_get_tps - send get TPS command to AS10x
* @adap: pointer to AS10x handle
* @ptps: pointer to TPS parameters structure
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_get_tps(struct as10x_bus_adapter_t *adap, struct as10x_tps *ptps)
{
int error = AS10X_CMD_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.get_tps.req));
/* fill command */
pcmd->body.get_tune_status.req.proc_id =
cpu_to_le16(CONTROL_PROC_GETTPS);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap,
(uint8_t *) pcmd,
sizeof(pcmd->body.get_tps.req) +
HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.get_tps.rsp) +
HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTPS_RSP);
if (error < 0)
goto out;
/* Response OK -> get response data */
ptps->modulation = prsp->body.get_tps.rsp.tps.modulation;
ptps->hierarchy = prsp->body.get_tps.rsp.tps.hierarchy;
ptps->interleaving_mode = prsp->body.get_tps.rsp.tps.interleaving_mode;
ptps->code_rate_HP = prsp->body.get_tps.rsp.tps.code_rate_HP;
ptps->code_rate_LP = prsp->body.get_tps.rsp.tps.code_rate_LP;
ptps->guard_interval = prsp->body.get_tps.rsp.tps.guard_interval;
ptps->transmission_mode = prsp->body.get_tps.rsp.tps.transmission_mode;
ptps->DVBH_mask_HP = prsp->body.get_tps.rsp.tps.DVBH_mask_HP;
ptps->DVBH_mask_LP = prsp->body.get_tps.rsp.tps.DVBH_mask_LP;
ptps->cell_ID = le16_to_cpu((__force __le16)prsp->body.get_tps.rsp.tps.cell_ID);
out:
return error;
}
/**
* as10x_cmd_get_demod_stats - send get demod stats command to AS10x
* @adap: pointer to AS10x bus adapter
* @pdemod_stats: pointer to demod stats parameters structure
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_get_demod_stats(struct as10x_bus_adapter_t *adap,
struct as10x_demod_stats *pdemod_stats)
{
int error = AS10X_CMD_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.get_demod_stats.req));
/* fill command */
pcmd->body.get_demod_stats.req.proc_id =
cpu_to_le16(CONTROL_PROC_GET_DEMOD_STATS);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap,
(uint8_t *) pcmd,
sizeof(pcmd->body.get_demod_stats.req)
+ HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.get_demod_stats.rsp)
+ HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_GET_DEMOD_STATS_RSP);
if (error < 0)
goto out;
/* Response OK -> get response data */
pdemod_stats->frame_count =
le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.frame_count);
pdemod_stats->bad_frame_count =
le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bad_frame_count);
pdemod_stats->bytes_fixed_by_rs =
le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bytes_fixed_by_rs);
pdemod_stats->mer =
le16_to_cpu((__force __le16)prsp->body.get_demod_stats.rsp.stats.mer);
pdemod_stats->has_started =
prsp->body.get_demod_stats.rsp.stats.has_started;
out:
return error;
}
/**
* as10x_cmd_get_impulse_resp - send get impulse response command to AS10x
* @adap: pointer to AS10x bus adapter
* @is_ready: pointer to value indicating when impulse
* response data is ready
*
* Return 0 on success or negative value in case of error.
*/
int as10x_cmd_get_impulse_resp(struct as10x_bus_adapter_t *adap,
uint8_t *is_ready)
{
int error = AS10X_CMD_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.get_impulse_rsp.req));
/* fill command */
pcmd->body.get_impulse_rsp.req.proc_id =
cpu_to_le16(CONTROL_PROC_GET_IMPULSE_RESP);
/* send command */
if (adap->ops->xfer_cmd) {
error = adap->ops->xfer_cmd(adap,
(uint8_t *) pcmd,
sizeof(pcmd->body.get_impulse_rsp.req)
+ HEADER_SIZE,
(uint8_t *) prsp,
sizeof(prsp->body.get_impulse_rsp.rsp)
+ HEADER_SIZE);
}
if (error < 0)
goto out;
/* parse response */
error = as10x_rsp_parse(prsp, CONTROL_PROC_GET_IMPULSE_RESP_RSP);
if (error < 0)
goto out;
/* Response OK -> get response data */
*is_ready = prsp->body.get_impulse_rsp.rsp.is_ready;
out:
return error;
}
/**
* as10x_cmd_build - build AS10x command header
* @pcmd: pointer to AS10x command buffer
* @xid: sequence id of the command
* @cmd_len: length of the command
*/
void as10x_cmd_build(struct as10x_cmd_t *pcmd,
uint16_t xid, uint16_t cmd_len)
{
pcmd->header.req_id = cpu_to_le16(xid);
pcmd->header.prog = cpu_to_le16(SERVICE_PROG_ID);
pcmd->header.version = cpu_to_le16(SERVICE_PROG_VERSION);
pcmd->header.data_len = cpu_to_le16(cmd_len);
}
/**
* as10x_rsp_parse - Parse command response
* @prsp: pointer to AS10x command buffer
* @proc_id: id of the command
*
* Return 0 on success or negative value in case of error.
*/
int as10x_rsp_parse(struct as10x_cmd_t *prsp, uint16_t proc_id)
{
int error;
/* extract command error code */
error = prsp->body.common.rsp.error;
if ((error == 0) &&
(le16_to_cpu(prsp->body.common.rsp.proc_id) == proc_id)) {
return 0;
}
return AS10X_CMD_ERROR;
}
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