[linux-2.6-block.git] / drivers / media / usb / as102 / as102_drv.c

/*
 * 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 <linux/errno.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/kref.h>
#include <linux/uaccess.h>
#include <linux/usb.h>

/* header file for usb device driver*/
#include "as102_drv.h"
#include "as10x_cmd.h"
#include "as102_fe.h"
#include "as102_fw.h"
#include <media/dvbdev.h>

int dual_tuner;
module_param_named(dual_tuner, dual_tuner, int, 0644);
MODULE_PARM_DESC(dual_tuner, "Activate Dual-Tuner config (default: off)");

static int fw_upload = 1;
module_param_named(fw_upload, fw_upload, int, 0644);
MODULE_PARM_DESC(fw_upload, "Turn on/off default FW upload (default: on)");

static int pid_filtering;
module_param_named(pid_filtering, pid_filtering, int, 0644);
MODULE_PARM_DESC(pid_filtering, "Activate HW PID filtering (default: off)");

static int ts_auto_disable;
module_param_named(ts_auto_disable, ts_auto_disable, int, 0644);
MODULE_PARM_DESC(ts_auto_disable, "Stream Auto Enable on FW (default: off)");

int elna_enable = 1;
module_param_named(elna_enable, elna_enable, int, 0644);
MODULE_PARM_DESC(elna_enable, "Activate eLNA (default: on)");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

static void as102_stop_stream(struct as102_dev_t *dev)
{
	struct as10x_bus_adapter_t *bus_adap;

	if (dev != NULL)
		bus_adap = &dev->bus_adap;
	else
		return;

	if (bus_adap->ops->stop_stream != NULL)
		bus_adap->ops->stop_stream(dev);

	if (ts_auto_disable) {
		if (mutex_lock_interruptible(&dev->bus_adap.lock))
			return;

		if (as10x_cmd_stop_streaming(bus_adap) < 0)
			dev_dbg(&dev->bus_adap.usb_dev->dev,
				"as10x_cmd_stop_streaming failed\n");

		mutex_unlock(&dev->bus_adap.lock);
	}
}

static int as102_start_stream(struct as102_dev_t *dev)
{
	struct as10x_bus_adapter_t *bus_adap;
	int ret = -EFAULT;

	if (dev != NULL)
		bus_adap = &dev->bus_adap;
	else
		return ret;

	if (bus_adap->ops->start_stream != NULL)
		ret = bus_adap->ops->start_stream(dev);

	if (ts_auto_disable) {
		if (mutex_lock_interruptible(&dev->bus_adap.lock))
			return -EFAULT;

		ret = as10x_cmd_start_streaming(bus_adap);

		mutex_unlock(&dev->bus_adap.lock);
	}

	return ret;
}

static int as10x_pid_filter(struct as102_dev_t *dev,
			    int index, u16 pid, int onoff) {

	struct as10x_bus_adapter_t *bus_adap = &dev->bus_adap;
	int ret = -EFAULT;

	if (mutex_lock_interruptible(&dev->bus_adap.lock)) {
		dev_dbg(&dev->bus_adap.usb_dev->dev,
			"amutex_lock_interruptible(lock) failed !\n");
		return -EBUSY;
	}

	switch (onoff) {
	case 0:
		ret = as10x_cmd_del_PID_filter(bus_adap, (uint16_t) pid);
		dev_dbg(&dev->bus_adap.usb_dev->dev,
			"DEL_PID_FILTER([%02d] 0x%04x) ret = %d\n",
			index, pid, ret);
		break;
	case 1:
	{
		struct as10x_ts_filter filter;

		filter.type = TS_PID_TYPE_TS;
		filter.idx = 0xFF;
		filter.pid = pid;

		ret = as10x_cmd_add_PID_filter(bus_adap, &filter);
		dev_dbg(&dev->bus_adap.usb_dev->dev,
			"ADD_PID_FILTER([%02d -> %02d], 0x%04x) ret = %d\n",
			index, filter.idx, filter.pid, ret);
		break;
	}
	}

	mutex_unlock(&dev->bus_adap.lock);
	return ret;
}

static int as102_dvb_dmx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
{
	int ret = 0;
	struct dvb_demux *demux = dvbdmxfeed->demux;
	struct as102_dev_t *as102_dev = demux->priv;

	if (mutex_lock_interruptible(&as102_dev->sem))
		return -ERESTARTSYS;

	if (pid_filtering)
		as10x_pid_filter(as102_dev, dvbdmxfeed->index,
				 dvbdmxfeed->pid, 1);

	if (as102_dev->streaming++ == 0)
		ret = as102_start_stream(as102_dev);

	mutex_unlock(&as102_dev->sem);
	return ret;
}

static int as102_dvb_dmx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
{
	struct dvb_demux *demux = dvbdmxfeed->demux;
	struct as102_dev_t *as102_dev = demux->priv;

	if (mutex_lock_interruptible(&as102_dev->sem))
		return -ERESTARTSYS;

	if (--as102_dev->streaming == 0)
		as102_stop_stream(as102_dev);

	if (pid_filtering)
		as10x_pid_filter(as102_dev, dvbdmxfeed->index,
				 dvbdmxfeed->pid, 0);

	mutex_unlock(&as102_dev->sem);
	return 0;
}

static int as102_set_tune(void *priv, struct as10x_tune_args *tune_args)
{
	struct as10x_bus_adapter_t *bus_adap = priv;
	int ret;

	/* Set frontend arguments */
	if (mutex_lock_interruptible(&bus_adap->lock))
		return -EBUSY;

	ret =  as10x_cmd_set_tune(bus_adap, tune_args);
	if (ret != 0)
		dev_dbg(&bus_adap->usb_dev->dev,
			"as10x_cmd_set_tune failed. (err = %d)\n", ret);

	mutex_unlock(&bus_adap->lock);

	return ret;
}

static int as102_get_tps(void *priv, struct as10x_tps *tps)
{
	struct as10x_bus_adapter_t *bus_adap = priv;
	int ret;

	if (mutex_lock_interruptible(&bus_adap->lock))
		return -EBUSY;

	/* send abilis command: GET_TPS */
	ret = as10x_cmd_get_tps(bus_adap, tps);

	mutex_unlock(&bus_adap->lock);

	return ret;
}

static int as102_get_status(void *priv, struct as10x_tune_status *tstate)
{
	struct as10x_bus_adapter_t *bus_adap = priv;
	int ret;

	if (mutex_lock_interruptible(&bus_adap->lock))
		return -EBUSY;

	/* send abilis command: GET_TUNE_STATUS */
	ret = as10x_cmd_get_tune_status(bus_adap, tstate);
	if (ret < 0) {
		dev_dbg(&bus_adap->usb_dev->dev,
			"as10x_cmd_get_tune_status failed (err = %d)\n",
			ret);
	}

	mutex_unlock(&bus_adap->lock);

	return ret;
}

static int as102_get_stats(void *priv, struct as10x_demod_stats *demod_stats)
{
	struct as10x_bus_adapter_t *bus_adap = priv;
	int ret;

	if (mutex_lock_interruptible(&bus_adap->lock))
		return -EBUSY;

	/* send abilis command: GET_TUNE_STATUS */
	ret = as10x_cmd_get_demod_stats(bus_adap, demod_stats);
	if (ret < 0) {
		dev_dbg(&bus_adap->usb_dev->dev,
			"as10x_cmd_get_demod_stats failed (probably not tuned)\n");
	} else {
		dev_dbg(&bus_adap->usb_dev->dev,
			"demod status: fc: 0x%08x, bad fc: 0x%08x, bytes corrected: 0x%08x , MER: 0x%04x\n",
			demod_stats->frame_count,
			demod_stats->bad_frame_count,
			demod_stats->bytes_fixed_by_rs,
			demod_stats->mer);
	}
	mutex_unlock(&bus_adap->lock);

	return ret;
}

static int as102_stream_ctrl(void *priv, int acquire, uint32_t elna_cfg)
{
	struct as10x_bus_adapter_t *bus_adap = priv;
	int ret;

	if (mutex_lock_interruptible(&bus_adap->lock))
		return -EBUSY;

	if (acquire) {
		if (elna_enable)
			as10x_cmd_set_context(bus_adap,
					      CONTEXT_LNA, elna_cfg);

		ret = as10x_cmd_turn_on(bus_adap);
	} else {
		ret = as10x_cmd_turn_off(bus_adap);
	}

	mutex_unlock(&bus_adap->lock);

	return ret;
}

static const struct as102_fe_ops as102_fe_ops = {
	.set_tune = as102_set_tune,
	.get_tps  = as102_get_tps,
	.get_status = as102_get_status,
	.get_stats = as102_get_stats,
	.stream_ctrl = as102_stream_ctrl,
};

int as102_dvb_register(struct as102_dev_t *as102_dev)
{
	struct device *dev = &as102_dev->bus_adap.usb_dev->dev;
	int ret;

	ret = dvb_register_adapter(&as102_dev->dvb_adap,
			   as102_dev->name, THIS_MODULE,
			   dev, adapter_nr);
	if (ret < 0) {
		dev_err(dev, "%s: dvb_register_adapter() failed: %d\n",
			__func__, ret);
		return ret;
	}

	as102_dev->dvb_dmx.priv = as102_dev;
	as102_dev->dvb_dmx.filternum = pid_filtering ? 16 : 256;
	as102_dev->dvb_dmx.feednum = 256;
	as102_dev->dvb_dmx.start_feed = as102_dvb_dmx_start_feed;
	as102_dev->dvb_dmx.stop_feed = as102_dvb_dmx_stop_feed;

	as102_dev->dvb_dmx.dmx.capabilities = DMX_TS_FILTERING |
					      DMX_SECTION_FILTERING;

	as102_dev->dvb_dmxdev.filternum = as102_dev->dvb_dmx.filternum;
	as102_dev->dvb_dmxdev.demux = &as102_dev->dvb_dmx.dmx;
	as102_dev->dvb_dmxdev.capabilities = 0;

	ret = dvb_dmx_init(&as102_dev->dvb_dmx);
	if (ret < 0) {
		dev_err(dev, "%s: dvb_dmx_init() failed: %d\n", __func__, ret);
		goto edmxinit;
	}

	ret = dvb_dmxdev_init(&as102_dev->dvb_dmxdev, &as102_dev->dvb_adap);
	if (ret < 0) {
		dev_err(dev, "%s: dvb_dmxdev_init() failed: %d\n",
			__func__, ret);
		goto edmxdinit;
	}

	/* Attach the frontend */
	as102_dev->dvb_fe = dvb_attach(as102_attach, as102_dev->name,
				       &as102_fe_ops,
				       &as102_dev->bus_adap,
				       as102_dev->elna_cfg);
	if (!as102_dev->dvb_fe) {
		ret = -ENODEV;
		dev_err(dev, "%s: as102_attach() failed: %d",
		    __func__, ret);
		goto efereg;
	}

	ret =  dvb_register_frontend(&as102_dev->dvb_adap, as102_dev->dvb_fe);
	if (ret < 0) {
		dev_err(dev, "%s: as102_dvb_register_frontend() failed: %d",
		    __func__, ret);
		goto efereg;
	}

	/* init bus mutex for token locking */
	mutex_init(&as102_dev->bus_adap.lock);

	/* init start / stop stream mutex */
	mutex_init(&as102_dev->sem);

	/*
	 * try to load as102 firmware. If firmware upload failed, we'll be
	 * able to upload it later.
	 */
	if (fw_upload)
		try_then_request_module(as102_fw_upload(&as102_dev->bus_adap),
				"firmware_class");

	pr_info("Registered device %s", as102_dev->name);
	return 0;

efereg:
	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
edmxdinit:
	dvb_dmx_release(&as102_dev->dvb_dmx);
edmxinit:
	dvb_unregister_adapter(&as102_dev->dvb_adap);
	return ret;
}

void as102_dvb_unregister(struct as102_dev_t *as102_dev)
{
	/* unregister as102 frontend */
	dvb_unregister_frontend(as102_dev->dvb_fe);

	/* detach frontend */
	dvb_frontend_detach(as102_dev->dvb_fe);

	/* unregister demux device */
	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
	dvb_dmx_release(&as102_dev->dvb_dmx);

	/* unregister dvb adapter */
	dvb_unregister_adapter(&as102_dev->dvb_adap);

	pr_info("Unregistered device %s", as102_dev->name);
}

module_usb_driver(as102_usb_driver);

/* modinfo details */
MODULE_DESCRIPTION(DRIVER_FULL_NAME);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");
Commit	Line	Data
41b44e04 PH	1	/*
	2	* Abilis Systems Single DVB-T Receiver
	3	* Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
c6ccdca9	4	* Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
41b44e04 PH	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2, or (at your option)
	9	* any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
41b44e04 PH	15	*/
	16	#include <linux/kernel.h>
	17	#include <linux/errno.h>
41b44e04 PH	18	#include <linux/slab.h>
	19	#include <linux/module.h>
	20	#include <linux/mm.h>
	21	#include <linux/kref.h>
3288e201	22	#include <linux/uaccess.h>
41b44e04 PH	23	#include <linux/usb.h>
41b44e04 PH	24
b47acf2a	25	/* header file for usb device driver*/
41b44e04	26	#include "as102_drv.h"
47f79129 MCC	27	#include "as10x_cmd.h"
47f79129 MCC	28	#include "as102_fe.h"
41b44e04	29	#include "as102_fw.h"
fada1935	30	#include <media/dvbdev.h>
41b44e04	31
c6ccdca9	32	int dual_tuner;
41b44e04	33	module_param_named(dual_tuner, dual_tuner, int, 0644);
c6ccdca9	34	MODULE_PARM_DESC(dual_tuner, "Activate Dual-Tuner config (default: off)");
41b44e04 PH	35
	36	static int fw_upload = 1;
	37	module_param_named(fw_upload, fw_upload, int, 0644);
	38	MODULE_PARM_DESC(fw_upload, "Turn on/off default FW upload (default: on)");
	39
c6ccdca9	40	static int pid_filtering;
41b44e04 PH	41	module_param_named(pid_filtering, pid_filtering, int, 0644);
	42	MODULE_PARM_DESC(pid_filtering, "Activate HW PID filtering (default: off)");
	43
c6ccdca9	44	static int ts_auto_disable;
41b44e04 PH	45	module_param_named(ts_auto_disable, ts_auto_disable, int, 0644);
	46	MODULE_PARM_DESC(ts_auto_disable, "Stream Auto Enable on FW (default: off)");
	47
	48	int elna_enable = 1;
	49	module_param_named(elna_enable, elna_enable, int, 0644);
	50	MODULE_PARM_DESC(elna_enable, "Activate eLNA (default: on)");
	51
41b44e04	52	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
41b44e04	53
c6ccdca9 DH	54	static void as102_stop_stream(struct as102_dev_t *dev)
c6ccdca9 DH	55	{
34490a0a	56	struct as10x_bus_adapter_t *bus_adap;
41b44e04 PH	57
	58	if (dev != NULL)
	59	bus_adap = &dev->bus_adap;
	60	else
	61	return;
	62
	63	if (bus_adap->ops->stop_stream != NULL)
	64	bus_adap->ops->stop_stream(dev);
	65
	66	if (ts_auto_disable) {
	67	if (mutex_lock_interruptible(&dev->bus_adap.lock))
	68	return;
	69
c6ccdca9	70	if (as10x_cmd_stop_streaming(bus_adap) < 0)
2179de60 MK	71	dev_dbg(&dev->bus_adap.usb_dev->dev,
2179de60 MK	72	"as10x_cmd_stop_streaming failed\n");
41b44e04 PH	73
	74	mutex_unlock(&dev->bus_adap.lock);
	75	}
	76	}
	77
c6ccdca9 DH	78	static int as102_start_stream(struct as102_dev_t *dev)
c6ccdca9 DH	79	{
34490a0a	80	struct as10x_bus_adapter_t *bus_adap;
41b44e04 PH	81	int ret = -EFAULT;
	82
	83	if (dev != NULL)
	84	bus_adap = &dev->bus_adap;
	85	else
	86	return ret;
	87
c6ccdca9	88	if (bus_adap->ops->start_stream != NULL)
41b44e04	89	ret = bus_adap->ops->start_stream(dev);
41b44e04 PH	90
	91	if (ts_auto_disable) {
	92	if (mutex_lock_interruptible(&dev->bus_adap.lock))
	93	return -EFAULT;
	94
	95	ret = as10x_cmd_start_streaming(bus_adap);
	96
	97	mutex_unlock(&dev->bus_adap.lock);
	98	}
	99
	100	return ret;
	101	}
	102
	103	static int as10x_pid_filter(struct as102_dev_t *dev,
	104	int index, u16 pid, int onoff) {
	105
34490a0a	106	struct as10x_bus_adapter_t *bus_adap = &dev->bus_adap;
41b44e04 PH	107	int ret = -EFAULT;
41b44e04 PH	108
41b44e04	109	if (mutex_lock_interruptible(&dev->bus_adap.lock)) {
2179de60 MK	110	dev_dbg(&dev->bus_adap.usb_dev->dev,
2179de60 MK	111	"amutex_lock_interruptible(lock) failed !\n");
41b44e04 PH	112	return -EBUSY;
	113	}
	114
c6ccdca9 DH	115	switch (onoff) {
c6ccdca9 DH	116	case 0:
14e0e4bf	117	ret = as10x_cmd_del_PID_filter(bus_adap, (uint16_t) pid);
2179de60 MK	118	dev_dbg(&dev->bus_adap.usb_dev->dev,
2179de60 MK	119	"DEL_PID_FILTER([%02d] 0x%04x) ret = %d\n",
14e0e4bf SN	120	index, pid, ret);
14e0e4bf SN	121	break;
c6ccdca9 DH	122	case 1:
c6ccdca9 DH	123	{
14e0e4bf	124	struct as10x_ts_filter filter;
c6ccdca9	125
14e0e4bf SN	126	filter.type = TS_PID_TYPE_TS;
	127	filter.idx = 0xFF;
	128	filter.pid = pid;
c6ccdca9	129
14e0e4bf	130	ret = as10x_cmd_add_PID_filter(bus_adap, &filter);
2179de60	131	dev_dbg(&dev->bus_adap.usb_dev->dev,
f52e9828	132	"ADD_PID_FILTER([%02d -> %02d], 0x%04x) ret = %d\n",
14e0e4bf SN	133	index, filter.idx, filter.pid, ret);
14e0e4bf SN	134	break;
c6ccdca9	135	}
41b44e04 PH	136	}
	137
	138	mutex_unlock(&dev->bus_adap.lock);
41b44e04 PH	139	return ret;
	140	}
	141
c6ccdca9 DH	142	static int as102_dvb_dmx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
c6ccdca9 DH	143	{
41b44e04 PH	144	int ret = 0;
	145	struct dvb_demux *demux = dvbdmxfeed->demux;
	146	struct as102_dev_t *as102_dev = demux->priv;
	147
41b44e04 PH	148	if (mutex_lock_interruptible(&as102_dev->sem))
	149	return -ERESTARTSYS;
	150
14e0e4bf SN	151	if (pid_filtering)
	152	as10x_pid_filter(as102_dev, dvbdmxfeed->index,
	153	dvbdmxfeed->pid, 1);
41b44e04	154
c6ccdca9	155	if (as102_dev->streaming++ == 0)
41b44e04	156	ret = as102_start_stream(as102_dev);
41b44e04 PH	157
41b44e04 PH	158	mutex_unlock(&as102_dev->sem);
41b44e04 PH	159	return ret;
	160	}
	161
c6ccdca9 DH	162	static int as102_dvb_dmx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
c6ccdca9 DH	163	{
41b44e04 PH	164	struct dvb_demux *demux = dvbdmxfeed->demux;
	165	struct as102_dev_t *as102_dev = demux->priv;
	166
41b44e04 PH	167	if (mutex_lock_interruptible(&as102_dev->sem))
	168	return -ERESTARTSYS;
	169
c6ccdca9	170	if (--as102_dev->streaming == 0)
41b44e04	171	as102_stop_stream(as102_dev);
41b44e04	172
14e0e4bf SN	173	if (pid_filtering)
	174	as10x_pid_filter(as102_dev, dvbdmxfeed->index,
	175	dvbdmxfeed->pid, 0);
41b44e04 PH	176
41b44e04 PH	177	mutex_unlock(&as102_dev->sem);
41b44e04 PH	178	return 0;
41b44e04 PH	179	}
41b44e04	180
47f79129 MCC	181	static int as102_set_tune(void priv, struct as10x_tune_args tune_args)
	182	{
	183	struct as10x_bus_adapter_t *bus_adap = priv;
	184	int ret;
	185
	186	/* Set frontend arguments */
	187	if (mutex_lock_interruptible(&bus_adap->lock))
	188	return -EBUSY;
	189
	190	ret = as10x_cmd_set_tune(bus_adap, tune_args);
	191	if (ret != 0)
	192	dev_dbg(&bus_adap->usb_dev->dev,
	193	"as10x_cmd_set_tune failed. (err = %d)\n", ret);
	194
	195	mutex_unlock(&bus_adap->lock);
	196
	197	return ret;
	198	}
	199
	200	static int as102_get_tps(void priv, struct as10x_tps tps)
	201	{
	202	struct as10x_bus_adapter_t *bus_adap = priv;
	203	int ret;
	204
	205	if (mutex_lock_interruptible(&bus_adap->lock))
	206	return -EBUSY;
	207
	208	/* send abilis command: GET_TPS */
	209	ret = as10x_cmd_get_tps(bus_adap, tps);
	210
	211	mutex_unlock(&bus_adap->lock);
	212
	213	return ret;
	214	}
	215
	216	static int as102_get_status(void priv, struct as10x_tune_status tstate)
	217	{
	218	struct as10x_bus_adapter_t *bus_adap = priv;
	219	int ret;
	220
	221	if (mutex_lock_interruptible(&bus_adap->lock))
	222	return -EBUSY;
	223
	224	/* send abilis command: GET_TUNE_STATUS */
	225	ret = as10x_cmd_get_tune_status(bus_adap, tstate);
	226	if (ret < 0) {
	227	dev_dbg(&bus_adap->usb_dev->dev,
	228	"as10x_cmd_get_tune_status failed (err = %d)\n",
	229	ret);
	230	}
	231
	232	mutex_unlock(&bus_adap->lock);
	233
	234	return ret;
	235	}
	236
	237	static int as102_get_stats(void priv, struct as10x_demod_stats demod_stats)
	238	{
	239	struct as10x_bus_adapter_t *bus_adap = priv;
	240	int ret;
	241
	242	if (mutex_lock_interruptible(&bus_adap->lock))
	243	return -EBUSY;
	244
245	/* send abilis command: GET_TUNE_STATUS */
246	ret = as10x_cmd_get_demod_stats(bus_adap, demod_stats);
247	if (ret < 0) {
248	dev_dbg(&bus_adap->usb_dev->dev,
249	"as10x_cmd_get_demod_stats failed (probably not tuned)\n");
250	} else {
251	dev_dbg(&bus_adap->usb_dev->dev,
252	"demod status: fc: 0x%08x, bad fc: 0x%08x, bytes corrected: 0x%08x , MER: 0x%04x\n",
253	demod_stats->frame_count,
254	demod_stats->bad_frame_count,
255	demod_stats->bytes_fixed_by_rs,
256	demod_stats->mer);
257	}
258	mutex_unlock(&bus_adap->lock);
259
260	return ret;
261	}
262
263	static int as102_stream_ctrl(void *priv, int acquire, uint32_t elna_cfg)
264	{
265	struct as10x_bus_adapter_t *bus_adap = priv;
266	int ret;
267
268	if (mutex_lock_interruptible(&bus_adap->lock))
269	return -EBUSY;
270
271	if (acquire) {
272	if (elna_enable)
273	as10x_cmd_set_context(bus_adap,
274	CONTEXT_LNA, elna_cfg);
275
276	ret = as10x_cmd_turn_on(bus_adap);
277	} else {
278	ret = as10x_cmd_turn_off(bus_adap);
279	}
280
281	mutex_unlock(&bus_adap->lock);
282
283	return ret;
284	}
285
286	static const struct as102_fe_ops as102_fe_ops = {
287	.set_tune = as102_set_tune,
288	.get_tps = as102_get_tps,
289	.get_status = as102_get_status,
290	.get_stats = as102_get_stats,
291	.stream_ctrl = as102_stream_ctrl,
292	};
293
c6ccdca9 DH	294	int as102_dvb_register(struct as102_dev_t *as102_dev)
c6ccdca9 DH	295	{
88010289 SN	296	struct device *dev = &as102_dev->bus_adap.usb_dev->dev;
88010289 SN	297	int ret;
41b44e04	298
41b44e04	299	ret = dvb_register_adapter(&as102_dev->dvb_adap,
88010289 SN	300	as102_dev->name, THIS_MODULE,
88010289 SN	301	dev, adapter_nr);
41b44e04	302	if (ret < 0) {
88010289 SN	303	dev_err(dev, "%s: dvb_register_adapter() failed: %d\n",
	304	__func__, ret);
	305	return ret;
41b44e04 PH	306	}
	307
	308	as102_dev->dvb_dmx.priv = as102_dev;
	309	as102_dev->dvb_dmx.filternum = pid_filtering ? 16 : 256;
	310	as102_dev->dvb_dmx.feednum = 256;
	311	as102_dev->dvb_dmx.start_feed = as102_dvb_dmx_start_feed;
	312	as102_dev->dvb_dmx.stop_feed = as102_dvb_dmx_stop_feed;
	313
	314	as102_dev->dvb_dmx.dmx.capabilities = DMX_TS_FILTERING \|
	315	DMX_SECTION_FILTERING;
	316
	317	as102_dev->dvb_dmxdev.filternum = as102_dev->dvb_dmx.filternum;
	318	as102_dev->dvb_dmxdev.demux = &as102_dev->dvb_dmx.dmx;
	319	as102_dev->dvb_dmxdev.capabilities = 0;
	320
c6ccdca9 DH	321	ret = dvb_dmx_init(&as102_dev->dvb_dmx);
c6ccdca9 DH	322	if (ret < 0) {
1ec9a35e	323	dev_err(dev, "%s: dvb_dmx_init() failed: %d\n", __func__, ret);
88010289	324	goto edmxinit;
41b44e04 PH	325	}
	326
	327	ret = dvb_dmxdev_init(&as102_dev->dvb_dmxdev, &as102_dev->dvb_adap);
	328	if (ret < 0) {
88010289 SN	329	dev_err(dev, "%s: dvb_dmxdev_init() failed: %d\n",
	330	__func__, ret);
	331	goto edmxdinit;
41b44e04 PH	332	}
41b44e04 PH	333
b601d9a5 MCC	334	/* Attach the frontend */
b601d9a5 MCC	335	as102_dev->dvb_fe = dvb_attach(as102_attach, as102_dev->name,
47f79129	336	&as102_fe_ops,
b601d9a5 MCC	337	&as102_dev->bus_adap,
	338	as102_dev->elna_cfg);
	339	if (!as102_dev->dvb_fe) {
bfe40b79	340	ret = -ENODEV;
b601d9a5 MCC	341	dev_err(dev, "%s: as102_attach() failed: %d",
	342	__func__, ret);
	343	goto efereg;
	344	}
	345
	346	ret = dvb_register_frontend(&as102_dev->dvb_adap, as102_dev->dvb_fe);
41b44e04	347	if (ret < 0) {
88010289	348	dev_err(dev, "%s: as102_dvb_register_frontend() failed: %d",
c6ccdca9	349	__func__, ret);
88010289	350	goto efereg;
41b44e04	351	}
41b44e04 PH	352
	353	/* init bus mutex for token locking */
	354	mutex_init(&as102_dev->bus_adap.lock);
	355
	356	/* init start / stop stream mutex */
	357	mutex_init(&as102_dev->sem);
	358
41b44e04 PH	359	/*
	360	* try to load as102 firmware. If firmware upload failed, we'll be
	361	* able to upload it later.
	362	*/
	363	if (fw_upload)
	364	try_then_request_module(as102_fw_upload(&as102_dev->bus_adap),
	365	"firmware_class");
88010289 SN	366
	367	pr_info("Registered device %s", as102_dev->name);
	368	return 0;
	369
	370	efereg:
	371	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
	372	edmxdinit:
	373	dvb_dmx_release(&as102_dev->dvb_dmx);
	374	edmxinit:
	375	dvb_unregister_adapter(&as102_dev->dvb_adap);
41b44e04 PH	376	return ret;
	377	}
	378
c6ccdca9 DH	379	void as102_dvb_unregister(struct as102_dev_t *as102_dev)
c6ccdca9 DH	380	{
41b44e04	381	/* unregister as102 frontend */
b601d9a5 MCC	382	dvb_unregister_frontend(as102_dev->dvb_fe);
	383
	384	/* detach frontend */
	385	dvb_frontend_detach(as102_dev->dvb_fe);
41b44e04 PH	386
	387	/* unregister demux device */
	388	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
	389	dvb_dmx_release(&as102_dev->dvb_dmx);
	390
	391	/* unregister dvb adapter */
	392	dvb_unregister_adapter(&as102_dev->dvb_adap);
ff7029f5	393
88010289	394	pr_info("Unregistered device %s", as102_dev->name);
41b44e04 PH	395	}
41b44e04 PH	396
9451df0e	397	module_usb_driver(as102_usb_driver);
41b44e04	398
41b44e04 PH	399	/* modinfo details */
	400	MODULE_DESCRIPTION(DRIVER_FULL_NAME);
	401	MODULE_LICENSE("GPL");
	402	MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");