414 lines
11 KiB
C
414 lines
11 KiB
C
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/*
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* Abilis Systems Single DVB-T Receiver
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* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
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* Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include "as102_drv.h"
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#include "as10x_cmd.h"
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/**
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* as10x_cmd_turn_on - send turn on command to AS10x
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* @adap: pointer to AS10x bus adapter
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*
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* Return 0 when no error, < 0 in case of error.
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*/
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int as10x_cmd_turn_on(struct as10x_bus_adapter_t *adap)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *pcmd, *prsp;
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pcmd = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(pcmd, (++adap->cmd_xid),
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sizeof(pcmd->body.turn_on.req));
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/* fill command */
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pcmd->body.turn_on.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNON);
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
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sizeof(pcmd->body.turn_on.req) +
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HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.turn_on.rsp) +
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HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNON_RSP);
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out:
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return error;
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}
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/**
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* as10x_cmd_turn_off - send turn off command to AS10x
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* @adap: pointer to AS10x bus adapter
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_turn_off(struct as10x_bus_adapter_t *adap)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *pcmd, *prsp;
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pcmd = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(pcmd, (++adap->cmd_xid),
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sizeof(pcmd->body.turn_off.req));
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/* fill command */
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pcmd->body.turn_off.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNOFF);
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(
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adap, (uint8_t *) pcmd,
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sizeof(pcmd->body.turn_off.req) + HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.turn_off.rsp) + HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNOFF_RSP);
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out:
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return error;
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}
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/**
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* as10x_cmd_set_tune - send set tune command to AS10x
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* @adap: pointer to AS10x bus adapter
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* @ptune: tune parameters
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_set_tune(struct as10x_bus_adapter_t *adap,
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struct as10x_tune_args *ptune)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *preq, *prsp;
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preq = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(preq, (++adap->cmd_xid),
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sizeof(preq->body.set_tune.req));
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/* fill command */
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preq->body.set_tune.req.proc_id = cpu_to_le16(CONTROL_PROC_SETTUNE);
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preq->body.set_tune.req.args.freq = (__force __u32)cpu_to_le32(ptune->freq);
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preq->body.set_tune.req.args.bandwidth = ptune->bandwidth;
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preq->body.set_tune.req.args.hier_select = ptune->hier_select;
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preq->body.set_tune.req.args.modulation = ptune->modulation;
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preq->body.set_tune.req.args.hierarchy = ptune->hierarchy;
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preq->body.set_tune.req.args.interleaving_mode =
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ptune->interleaving_mode;
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preq->body.set_tune.req.args.code_rate = ptune->code_rate;
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preq->body.set_tune.req.args.guard_interval = ptune->guard_interval;
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preq->body.set_tune.req.args.transmission_mode =
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ptune->transmission_mode;
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(adap,
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(uint8_t *) preq,
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sizeof(preq->body.set_tune.req)
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+ HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.set_tune.rsp)
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+ HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_SETTUNE_RSP);
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out:
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return error;
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}
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/**
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* as10x_cmd_get_tune_status - send get tune status command to AS10x
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* @adap: pointer to AS10x bus adapter
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* @pstatus: pointer to updated status structure of the current tune
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_get_tune_status(struct as10x_bus_adapter_t *adap,
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struct as10x_tune_status *pstatus)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *preq, *prsp;
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preq = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(preq, (++adap->cmd_xid),
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sizeof(preq->body.get_tune_status.req));
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/* fill command */
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preq->body.get_tune_status.req.proc_id =
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cpu_to_le16(CONTROL_PROC_GETTUNESTAT);
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(
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adap,
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(uint8_t *) preq,
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sizeof(preq->body.get_tune_status.req) + HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.get_tune_status.rsp) + HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTUNESTAT_RSP);
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if (error < 0)
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goto out;
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/* Response OK -> get response data */
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pstatus->tune_state = prsp->body.get_tune_status.rsp.sts.tune_state;
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pstatus->signal_strength =
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le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.signal_strength);
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pstatus->PER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.PER);
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pstatus->BER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.BER);
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out:
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return error;
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}
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/**
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* as10x_cmd_get_tps - send get TPS command to AS10x
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* @adap: pointer to AS10x handle
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* @ptps: pointer to TPS parameters structure
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_get_tps(struct as10x_bus_adapter_t *adap, struct as10x_tps *ptps)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *pcmd, *prsp;
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pcmd = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(pcmd, (++adap->cmd_xid),
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sizeof(pcmd->body.get_tps.req));
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/* fill command */
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pcmd->body.get_tune_status.req.proc_id =
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cpu_to_le16(CONTROL_PROC_GETTPS);
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(adap,
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(uint8_t *) pcmd,
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sizeof(pcmd->body.get_tps.req) +
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HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.get_tps.rsp) +
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HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTPS_RSP);
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if (error < 0)
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goto out;
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/* Response OK -> get response data */
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ptps->modulation = prsp->body.get_tps.rsp.tps.modulation;
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ptps->hierarchy = prsp->body.get_tps.rsp.tps.hierarchy;
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ptps->interleaving_mode = prsp->body.get_tps.rsp.tps.interleaving_mode;
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ptps->code_rate_HP = prsp->body.get_tps.rsp.tps.code_rate_HP;
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ptps->code_rate_LP = prsp->body.get_tps.rsp.tps.code_rate_LP;
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ptps->guard_interval = prsp->body.get_tps.rsp.tps.guard_interval;
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ptps->transmission_mode = prsp->body.get_tps.rsp.tps.transmission_mode;
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ptps->DVBH_mask_HP = prsp->body.get_tps.rsp.tps.DVBH_mask_HP;
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ptps->DVBH_mask_LP = prsp->body.get_tps.rsp.tps.DVBH_mask_LP;
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ptps->cell_ID = le16_to_cpu((__force __le16)prsp->body.get_tps.rsp.tps.cell_ID);
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out:
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return error;
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}
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/**
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* as10x_cmd_get_demod_stats - send get demod stats command to AS10x
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* @adap: pointer to AS10x bus adapter
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* @pdemod_stats: pointer to demod stats parameters structure
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_get_demod_stats(struct as10x_bus_adapter_t *adap,
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struct as10x_demod_stats *pdemod_stats)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *pcmd, *prsp;
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pcmd = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(pcmd, (++adap->cmd_xid),
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sizeof(pcmd->body.get_demod_stats.req));
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/* fill command */
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pcmd->body.get_demod_stats.req.proc_id =
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cpu_to_le16(CONTROL_PROC_GET_DEMOD_STATS);
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/* send command */
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if (adap->ops->xfer_cmd) {
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error = adap->ops->xfer_cmd(adap,
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(uint8_t *) pcmd,
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sizeof(pcmd->body.get_demod_stats.req)
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+ HEADER_SIZE,
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(uint8_t *) prsp,
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sizeof(prsp->body.get_demod_stats.rsp)
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+ HEADER_SIZE);
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}
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if (error < 0)
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goto out;
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/* parse response */
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error = as10x_rsp_parse(prsp, CONTROL_PROC_GET_DEMOD_STATS_RSP);
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if (error < 0)
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goto out;
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/* Response OK -> get response data */
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pdemod_stats->frame_count =
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le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.frame_count);
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pdemod_stats->bad_frame_count =
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le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bad_frame_count);
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pdemod_stats->bytes_fixed_by_rs =
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le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bytes_fixed_by_rs);
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pdemod_stats->mer =
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le16_to_cpu((__force __le16)prsp->body.get_demod_stats.rsp.stats.mer);
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pdemod_stats->has_started =
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prsp->body.get_demod_stats.rsp.stats.has_started;
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out:
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return error;
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}
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/**
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* as10x_cmd_get_impulse_resp - send get impulse response command to AS10x
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* @adap: pointer to AS10x bus adapter
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* @is_ready: pointer to value indicating when impulse
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* response data is ready
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*
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* Return 0 on success or negative value in case of error.
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*/
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int as10x_cmd_get_impulse_resp(struct as10x_bus_adapter_t *adap,
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uint8_t *is_ready)
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{
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int error = AS10X_CMD_ERROR;
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struct as10x_cmd_t *pcmd, *prsp;
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pcmd = adap->cmd;
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prsp = adap->rsp;
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/* prepare command */
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as10x_cmd_build(pcmd, (++adap->cmd_xid),
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|
|
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;
|
||
|
|
}
|