pvrusb2-hdw.c

linux内核源码

/*
 *
 *  $Id$
 *
 *  Copyright (C) 2005 Mike Isely <[e-mail]>
 *
 *  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 of the License
 *
 *  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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/errno.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <asm/semaphore.h>
#include "pvrusb2.h"
#include "pvrusb2-std.h"
#include "pvrusb2-util.h"
#include "pvrusb2-hdw.h"
#include "pvrusb2-i2c-core.h"
#include "pvrusb2-tuner.h"
#include "pvrusb2-eeprom.h"
#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-encoder.h"
#include "pvrusb2-debug.h"
#include "pvrusb2-fx2-cmd.h"

#define TV_MIN_FREQ     55250000L
#define TV_MAX_FREQ    850000000L

struct usb_device_id pvr2_device_table[] = {
	[PVR2_HDW_TYPE_29XXX] = { USB_DEVICE(0x2040, 0x2900) },
	[PVR2_HDW_TYPE_24XXX] = { USB_DEVICE(0x2040, 0x2400) },
	{ }
};

MODULE_DEVICE_TABLE(usb, pvr2_device_table);

static const char *pvr2_device_names[] = {
	[PVR2_HDW_TYPE_29XXX] = "WinTV PVR USB2 Model Category 29xxxx",
	[PVR2_HDW_TYPE_24XXX] = "WinTV PVR USB2 Model Category 24xxxx",
};

struct pvr2_string_table {
	const char **lst;
	unsigned int cnt;
};

// Names of other client modules to request for 24xxx model hardware
static const char *pvr2_client_24xxx[] = {
	"cx25840",
	"tuner",
	"wm8775",
};

// Names of other client modules to request for 29xxx model hardware
static const char *pvr2_client_29xxx[] = {
	"msp3400",
	"saa7115",
	"tuner",
};

static struct pvr2_string_table pvr2_client_lists[] = {
	[PVR2_HDW_TYPE_29XXX] = {
		pvr2_client_29xxx, ARRAY_SIZE(pvr2_client_29xxx)
	},
	[PVR2_HDW_TYPE_24XXX] = {
		pvr2_client_24xxx, ARRAY_SIZE(pvr2_client_24xxx)
	},
};

static struct pvr2_hdw *unit_pointers[PVR_NUM] = {[ 0 ... PVR_NUM-1 ] = NULL};
static DEFINE_MUTEX(pvr2_unit_mtx);

static int ctlchg = 0;
static int initusbreset = 1;
static int procreload = 0;
static int tuner[PVR_NUM] = { [0 ... PVR_NUM-1] = -1 };
static int tolerance[PVR_NUM] = { [0 ... PVR_NUM-1] = 0 };
static int video_std[PVR_NUM] = { [0 ... PVR_NUM-1] = 0 };
static int init_pause_msec = 0;

module_param(ctlchg, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ctlchg, "0=optimize ctl change 1=always accept new ctl value");
module_param(init_pause_msec, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(init_pause_msec, "hardware initialization settling delay");
module_param(initusbreset, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(initusbreset, "Do USB reset device on probe");
module_param(procreload, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(procreload,
		 "Attempt init failure recovery with firmware reload");
module_param_array(tuner,    int, NULL, 0444);
MODULE_PARM_DESC(tuner,"specify installed tuner type");
module_param_array(video_std,    int, NULL, 0444);
MODULE_PARM_DESC(video_std,"specify initial video standard");
module_param_array(tolerance,    int, NULL, 0444);
MODULE_PARM_DESC(tolerance,"specify stream error tolerance");

#define PVR2_CTL_WRITE_ENDPOINT  0x01
#define PVR2_CTL_READ_ENDPOINT   0x81

#define PVR2_GPIO_IN 0x9008
#define PVR2_GPIO_OUT 0x900c
#define PVR2_GPIO_DIR 0x9020

#define trace_firmware(...) pvr2_trace(PVR2_TRACE_FIRMWARE,__VA_ARGS__)

#define PVR2_FIRMWARE_ENDPOINT   0x02

/* size of a firmware chunk */
#define FIRMWARE_CHUNK_SIZE 0x2000

/* Define the list of additional controls we'll dynamically construct based
   on query of the cx2341x module. */
struct pvr2_mpeg_ids {
	const char *strid;
	int id;
};
static const struct pvr2_mpeg_ids mpeg_ids[] = {
	{
		.strid = "audio_layer",
		.id = V4L2_CID_MPEG_AUDIO_ENCODING,
	},{
		.strid = "audio_bitrate",
		.id = V4L2_CID_MPEG_AUDIO_L2_BITRATE,
	},{
		/* Already using audio_mode elsewhere :-( */
		.strid = "mpeg_audio_mode",
		.id = V4L2_CID_MPEG_AUDIO_MODE,
	},{
		.strid = "mpeg_audio_mode_extension",
		.id = V4L2_CID_MPEG_AUDIO_MODE_EXTENSION,
	},{
		.strid = "audio_emphasis",
		.id = V4L2_CID_MPEG_AUDIO_EMPHASIS,
	},{
		.strid = "audio_crc",
		.id = V4L2_CID_MPEG_AUDIO_CRC,
	},{
		.strid = "video_aspect",
		.id = V4L2_CID_MPEG_VIDEO_ASPECT,
	},{
		.strid = "video_b_frames",
		.id = V4L2_CID_MPEG_VIDEO_B_FRAMES,
	},{
		.strid = "video_gop_size",
		.id = V4L2_CID_MPEG_VIDEO_GOP_SIZE,
	},{
		.strid = "video_gop_closure",
		.id = V4L2_CID_MPEG_VIDEO_GOP_CLOSURE,
	},{
		.strid = "video_bitrate_mode",
		.id = V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
	},{
		.strid = "video_bitrate",
		.id = V4L2_CID_MPEG_VIDEO_BITRATE,
	},{
		.strid = "video_bitrate_peak",
		.id = V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
	},{
		.strid = "video_temporal_decimation",
		.id = V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION,
	},{
		.strid = "stream_type",
		.id = V4L2_CID_MPEG_STREAM_TYPE,
	},{
		.strid = "video_spatial_filter_mode",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE,
	},{
		.strid = "video_spatial_filter",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER,
	},{
		.strid = "video_luma_spatial_filter_type",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE,
	},{
		.strid = "video_chroma_spatial_filter_type",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE,
	},{
		.strid = "video_temporal_filter_mode",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE,
	},{
		.strid = "video_temporal_filter",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER,
	},{
		.strid = "video_median_filter_type",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE,
	},{
		.strid = "video_luma_median_filter_top",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP,
	},{
		.strid = "video_luma_median_filter_bottom",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM,
	},{
		.strid = "video_chroma_median_filter_top",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP,
	},{
		.strid = "video_chroma_median_filter_bottom",
		.id = V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM,
	}
};
#define MPEGDEF_COUNT ARRAY_SIZE(mpeg_ids)


static const char *control_values_srate[] = {
	[V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100]   = "44.1 kHz",
	[V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000]   = "48 kHz",
	[V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000]   = "32 kHz",
};



static const char *control_values_input[] = {
	[PVR2_CVAL_INPUT_TV]        = "television",  /*xawtv needs this name*/
	[PVR2_CVAL_INPUT_RADIO]     = "radio",
	[PVR2_CVAL_INPUT_SVIDEO]    = "s-video",
	[PVR2_CVAL_INPUT_COMPOSITE] = "composite",
};


static const char *control_values_audiomode[] = {
	[V4L2_TUNER_MODE_MONO]   = "Mono",
	[V4L2_TUNER_MODE_STEREO] = "Stereo",
	[V4L2_TUNER_MODE_LANG1]  = "Lang1",
	[V4L2_TUNER_MODE_LANG2]  = "Lang2",
	[V4L2_TUNER_MODE_LANG1_LANG2] = "Lang1+Lang2",
};


static const char *control_values_hsm[] = {
	[PVR2_CVAL_HSM_FAIL] = "Fail",
	[PVR2_CVAL_HSM_HIGH] = "High",
	[PVR2_CVAL_HSM_FULL] = "Full",
};


static const char *control_values_subsystem[] = {
	[PVR2_SUBSYS_B_ENC_FIRMWARE]  = "enc_firmware",
	[PVR2_SUBSYS_B_ENC_CFG] = "enc_config",
	[PVR2_SUBSYS_B_DIGITIZER_RUN] = "digitizer_run",
	[PVR2_SUBSYS_B_USBSTREAM_RUN] = "usbstream_run",
	[PVR2_SUBSYS_B_ENC_RUN] = "enc_run",
};

static void pvr2_hdw_set_cur_freq(struct pvr2_hdw *,unsigned long);
static int pvr2_hdw_cmd_usbstream(struct pvr2_hdw *hdw,int runFl);
static int pvr2_hdw_commit_ctl_internal(struct pvr2_hdw *hdw);
static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw);
static void pvr2_hdw_internal_find_stdenum(struct pvr2_hdw *hdw);
static void pvr2_hdw_internal_set_std_avail(struct pvr2_hdw *hdw);
static void pvr2_hdw_render_useless_unlocked(struct pvr2_hdw *hdw);
static void pvr2_hdw_subsys_bit_chg_no_lock(struct pvr2_hdw *hdw,
					    unsigned long msk,
					    unsigned long val);
static void pvr2_hdw_subsys_stream_bit_chg_no_lock(struct pvr2_hdw *hdw,
						   unsigned long msk,
						   unsigned long val);
static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
				unsigned int timeout,int probe_fl,
				void *write_data,unsigned int write_len,
				void *read_data,unsigned int read_len);

static int ctrl_channelfreq_get(struct pvr2_ctrl *cptr,int *vp)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	if ((hdw->freqProgSlot > 0) && (hdw->freqProgSlot <= FREQTABLE_SIZE)) {
		*vp = hdw->freqTable[hdw->freqProgSlot-1];
	} else {
		*vp = 0;
	}
	return 0;
}

static int ctrl_channelfreq_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	unsigned int slotId = hdw->freqProgSlot;
	if ((slotId > 0) && (slotId <= FREQTABLE_SIZE)) {
		hdw->freqTable[slotId-1] = v;
		/* Handle side effects correctly - if we're tuned to this
		   slot, then forgot the slot id relation since the stored
		   frequency has been changed. */
		if (hdw->freqSelector) {
			if (hdw->freqSlotRadio == slotId) {
				hdw->freqSlotRadio = 0;
			}
		} else {
			if (hdw->freqSlotTelevision == slotId) {
				hdw->freqSlotTelevision = 0;
			}
		}
	}
	return 0;
}

static int ctrl_channelprog_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->freqProgSlot;
	return 0;
}

static int ctrl_channelprog_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	if ((v >= 0) && (v <= FREQTABLE_SIZE)) {
		hdw->freqProgSlot = v;
	}
	return 0;
}

static int ctrl_channel_get(struct pvr2_ctrl *cptr,int *vp)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	*vp = hdw->freqSelector ? hdw->freqSlotRadio : hdw->freqSlotTelevision;
	return 0;
}

static int ctrl_channel_set(struct pvr2_ctrl *cptr,int m,int slotId)
{
	unsigned freq = 0;
	struct pvr2_hdw *hdw = cptr->hdw;
	if ((slotId < 0) || (slotId > FREQTABLE_SIZE)) return 0;
	if (slotId > 0) {
		freq = hdw->freqTable[slotId-1];
		if (!freq) return 0;
		pvr2_hdw_set_cur_freq(hdw,freq);
	}
	if (hdw->freqSelector) {
		hdw->freqSlotRadio = slotId;
	} else {
		hdw->freqSlotTelevision = slotId;
	}
	return 0;
}

static int ctrl_freq_get(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = pvr2_hdw_get_cur_freq(cptr->hdw);
	return 0;
}

static int ctrl_freq_is_dirty(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->freqDirty != 0;
}

static void ctrl_freq_clear_dirty(struct pvr2_ctrl *cptr)
{
	cptr->hdw->freqDirty = 0;
}

static int ctrl_freq_set(struct pvr2_ctrl *cptr,int m,int v)
{
	pvr2_hdw_set_cur_freq(cptr->hdw,v);
	return 0;
}

static int ctrl_vres_max_get(struct pvr2_ctrl *cptr,int *vp)
{
	/* Actual maximum depends on the video standard in effect. */
	if (cptr->hdw->std_mask_cur & V4L2_STD_525_60) {
		*vp = 480;
	} else {
		*vp = 576;
	}
	return 0;
}

static int ctrl_vres_min_get(struct pvr2_ctrl *cptr,int *vp)
{
	/* Actual minimum depends on device type. */
	if (cptr->hdw->hdw_type == PVR2_HDW_TYPE_24XXX) {
		*vp = 75;
	} else {
		*vp = 17;
	}
	return 0;
}

static int ctrl_get_input(struct pvr2_ctrl *cptr,int *vp)
{
	*vp = cptr->hdw->input_val;
	return 0;
}

static int ctrl_set_input(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;

	if (hdw->input_val != v) {
		hdw->input_val = v;
		hdw->input_dirty = !0;
	}

	/* Handle side effects - if we switch to a mode that needs the RF
	   tuner, then select the right frequency choice as well and mark
	   it dirty. */
	if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
		hdw->freqSelector = 0;
		hdw->freqDirty = !0;
	} else if (hdw->input_val == PVR2_CVAL_INPUT_TV) {
		hdw->freqSelector = 1;
		hdw->freqDirty = !0;
	}
	return 0;
}

static int ctrl_isdirty_input(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->input_dirty != 0;
}

static void ctrl_cleardirty_input(struct pvr2_ctrl *cptr)
{
	cptr->hdw->input_dirty = 0;
}


static int ctrl_freq_max_get(struct pvr2_ctrl *cptr, int *vp)
{
	unsigned long fv;
	struct pvr2_hdw *hdw = cptr->hdw;
	if (hdw->tuner_signal_stale) {
		pvr2_i2c_core_status_poll(hdw);
	}
	fv = hdw->tuner_signal_info.rangehigh;
	if (!fv) {
		/* Safety fallback */
		*vp = TV_MAX_FREQ;
		return 0;
	}
	if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) {
		fv = (fv * 125) / 2;
	} else {
		fv = fv * 62500;
	}
	*vp = fv;
	return 0;
}

static int ctrl_freq_min_get(struct pvr2_ctrl *cptr, int *vp)
{
	unsigned long fv;
	struct pvr2_hdw *hdw = cptr->hdw;
	if (hdw->tuner_signal_stale) {
		pvr2_i2c_core_status_poll(hdw);
	}
	fv = hdw->tuner_signal_info.rangelow;
	if (!fv) {
		/* Safety fallback */
		*vp = TV_MIN_FREQ;
		return 0;
	}
	if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) {
		fv = (fv * 125) / 2;
	} else {
		fv = fv * 62500;
	}
	*vp = fv;
	return 0;
}

static int ctrl_cx2341x_is_dirty(struct pvr2_ctrl *cptr)
{
	return cptr->hdw->enc_stale != 0;
}

static void ctrl_cx2341x_clear_dirty(struct pvr2_ctrl *cptr)
{
	cptr->hdw->enc_stale = 0;
}

static int ctrl_cx2341x_get(struct pvr2_ctrl *cptr,int *vp)