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kernel-ark/drivers/media/usb/as102/as10x_cmd.c
Thomas Gleixner 3e0a4e8580 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 
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 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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 44 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091651.032047323@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:39:02 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Abilis Systems Single DVB-T Receiver
* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
* Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
*/
#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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