diff options
Diffstat (limited to 'drivers/media/usb/as102/as10x_cmd.c')
| -rw-r--r-- | drivers/media/usb/as102/as10x_cmd.c | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/drivers/media/usb/as102/as10x_cmd.c b/drivers/media/usb/as102/as10x_cmd.c new file mode 100644 index 000000000000..870617994410 --- /dev/null +++ b/drivers/media/usb/as102/as10x_cmd.c @@ -0,0 +1,413 @@ +/* + * 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; +} |