net/ipx

/*
 *
 *  $Id$
 *
 *  Copyright (C) 2005 Mike Isely <isely@pobox.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 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 "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

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 *pvr2_state_names[] = {
	[PVR2_STATE_NONE] =    "none",
	[PVR2_STATE_DEAD] =    "dead",
	[PVR2_STATE_COLD] =    "cold",
	[PVR2_STATE_WARM] =    "warm",
	[PVR2_STATE_ERROR] =   "error",
	[PVR2_STATE_READY] =   "ready",
	[PVR2_STATE_RUN] =     "run",
};


static void pvr2_hdw_state_sched(struct pvr2_hdw *);
static int pvr2_hdw_state_eval(struct pvr2_hdw *);
static void pvr2_hdw_set_cur_freq(struct pvr2_hdw *,unsigned long);
static void pvr2_hdw_worker_i2c(struct work_struct *work);
static void pvr2_hdw_worker_poll(struct work_struct *work);
static void pvr2_hdw_worker_init(struct work_struct *work);
static int pvr2_hdw_wait(struct pvr2_hdw *,int state);
static int pvr2_hdw_untrip_unlocked(struct pvr2_hdw *);
static void pvr2_hdw_state_log_state(struct pvr2_hdw *);
static int pvr2_hdw_cmd_usbstream(struct pvr2_hdw *hdw,int runFl);
static int pvr2_hdw_commit_setup(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_quiescent_timeout(unsigned long);
static void pvr2_hdw_encoder_wait_timeout(unsigned long);
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 void trace_stbit(const char *name,int val)
{
	pvr2_trace(PVR2_TRACE_STBITS,
		   "State bit %s <-- %s",
		   name,(val ? "true" : "false"));
}

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 digitizer type. */
	if (cptr->hdw->hdw_desc->flag_has_cx25840) {
		*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;
	cptr->hdw->enc_unsafe_stale = 0;
}

static int ctrl_cx2341x_get(struct pvr2_ctrl *cptr,int *vp)
{
	int ret;
	struct v4l2_ext_controls cs;
	struct v4l2_ext_control c1;
	memset(&cs,0,sizeof(cs));
	memset(&c1,0,sizeof(c1));
	cs.controls = &c1;
	cs.count = 1;
	c1.id = cptr->info->v4l_id;
	ret = cx2341x_ext_ctrls(&cptr->hdw->enc_ctl_state, 0, &cs,
				VIDIOC_G_EXT_CTRLS);
	if (ret) return ret;
	*vp = c1.value;
	return 0;
}

static int ctrl_cx2341x_set(struct pvr2_ctrl *cptr,int m,int v)
{
	int ret;
	struct pvr2_hdw *hdw = cptr->hdw;
	struct v4l2_ext_controls cs;
	struct v4l2_ext_control c1;
	memset(&cs,0,sizeof(cs));
	memset(&c1,0,sizeof(c1));
	cs.controls = &c1;
	cs.count = 1;
	c1.id = cptr->info->v4l_id;
	c1.value = v;
	ret = cx2341x_ext_ctrls(&hdw->enc_ctl_state,
				hdw->state_encoder_run, &cs,
				VIDIOC_S_EXT_CTRLS);
	if (ret == -EBUSY) {
		/* Oops.  cx2341x is telling us it's not safe to change
		   this control while we're capturing.  Make a note of this
		   fact so that the pipeline will be stopped the next time
		   controls are committed.  Then go on ahead and store this
		   change anyway. */
		ret = cx2341x_ext_ctrls(&hdw->enc_ctl_state,
					0, &cs,
					VIDIOC_S_EXT_CTRLS);
		if (!ret) hdw->enc_unsafe_stale = !0;
	}
	if (ret) return ret;
	hdw->enc_stale = !0;
	return 0;
}

static unsigned int ctrl_cx2341x_getv4lflags(struct pvr2_ctrl *cptr)
{
	struct v4l2_queryctrl qctrl;
	struct pvr2_ctl_info *info;
	qctrl.id = cptr->info->v4l_id;
	cx2341x_ctrl_query(&cptr->hdw->enc_ctl_state,&qctrl);
	/* Strip out the const so we can adjust a function pointer.  It's
	   OK to do this here because we know this is a dynamically created
	   control, so the underlying storage for the info pointer is (a)
	   private to us, and (b) not in read-only storage.  Either we do
	   this or we significantly complicate the underlying control
	   implementation. */
	info = (struct pvr2_ctl_info *)(cptr->info);
	if (qctrl.flags & V4L2_CTRL_FLAG_READ_ONLY) {
		if (info->set_value) {
			info->set_value = NULL;
		}
	} else {
		if (!(info->set_value)) {
			info->set_value = ctrl_cx2341x_set;
		}
	}
	return qctrl.flags;
}

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

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

static int ctrl_hsm_get(struct pvr2_ctrl *cptr,int *vp)
{
	int result = pvr2_hdw_is_hsm(cptr->hdw);
	*vp = PVR2_CVAL_HSM_FULL;
	if (result < 0) *vp = PVR2_CVAL_HSM_FAIL;
	if (result) *vp = PVR2_CVAL_HSM_HIGH;
	return 0;
}

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

static int ctrl_stdavail_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	v4l2_std_id ns;
	ns = hdw->std_mask_avail;
	ns = (ns & ~m) | (v & m);
	if (ns == hdw->std_mask_avail) return 0;
	hdw->std_mask_avail = ns;
	pvr2_hdw_internal_set_std_avail(hdw);
	pvr2_hdw_internal_find_stdenum(hdw);
	return 0;
}

static int ctrl_std_val_to_sym(struct pvr2_ctrl *cptr,int msk,int val,
			       char *bufPtr,unsigned int bufSize,
			       unsigned int *len)
{
	*len = pvr2_std_id_to_str(bufPtr,bufSize,msk & val);
	return 0;
}

static int ctrl_std_sym_to_val(struct pvr2_ctrl *cptr,
			       const char *bufPtr,unsigned int bufSize,
			       int *mskp,int *valp)
{
	int ret;
	v4l2_std_id id;
	ret = pvr2_std_str_to_id(&id,bufPtr,bufSize);
	if (ret < 0) return ret;
	if (mskp) *mskp = id;
	if (valp) *valp = id;
	return 0;
}

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

static int ctrl_stdcur_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	v4l2_std_id ns;
	ns = hdw->std_mask_cur;
	ns = (ns & ~m) | (v & m);
	if (ns == hdw->std_mask_cur) return 0;
	hdw->std_mask_cur = ns;
	hdw->std_dirty = !0;
	pvr2_hdw_internal_find_stdenum(hdw);
	return 0;
}

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

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

static int ctrl_signal_get(struct pvr2_ctrl *cptr,int *vp)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	pvr2_i2c_core_status_poll(hdw);
	*vp = hdw->tuner_signal_info.signal;
	return 0;
}

static int ctrl_audio_modes_present_get(struct pvr2_ctrl *cptr,int *vp)
{
	int val = 0;
	unsigned int subchan;
	struct pvr2_hdw *hdw = cptr->hdw;
	pvr2_i2c_core_status_poll(hdw);
	subchan = hdw->tuner_signal_info.rxsubchans;
	if (subchan & V4L2_TUNER_SUB_MONO) {
		val |= (1 << V4L2_TUNER_MODE_MONO);
	}
	if (subchan & V4L2_TUNER_SUB_STEREO) {
		val |= (1 << V4L2_TUNER_MODE_STEREO);
	}
	if (subchan & V4L2_TUNER_SUB_LANG1) {
		val |= (1 << V4L2_TUNER_MODE_LANG1);
	}
	if (subchan & V4L2_TUNER_SUB_LANG2) {
		val |= (1 << V4L2_TUNER_MODE_LANG2);
	}
	*vp = val;
	return 0;
}


static int ctrl_stdenumcur_set(struct pvr2_ctrl *cptr,int m,int v)
{
	struct pvr2_hdw *hdw = cptr->hdw;
	if (v < 0) return -EINVAL;
	if (v > hdw->std_enum_cnt) return -EINVAL;
	hdw->std_enum_cur = v;
	if (!v) return 0;
	v--;
	if (hdw->std_mask_cur == hdw->std_defs[v].id) return 0;
	hdw->std_mask_cur = hdw->std_defs[v].id;
	hdw->std_dirty = !0;
	return 0;
}


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


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


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


#define DEFINT(vmin,vmax) \
	.type = pvr2_ctl_int, \
	.def.type_int.min_value = vmin, \
	.def.type_int.max_value = vmax

#define DEFENUM(tab) \
	.type = pvr2_ctl_enum, \
	.def.type_enum.count = ARRAY_SIZE(tab), \
	.def.type_enum.value_names = tab

#define DEFBOOL \
	.type = pvr2_ctl_bool

#define DEFMASK(msk,tab) \
	.type = pvr2_ctl_bitmask, \
	.def.type_bitmask.valid_bits = msk, \
	.def.type_bitmask.bit_names = tab

#define DEFREF(vname) \
	.set_value = ctrl_set_##vname, \
	.get_value = ctrl_get_##vname, \
	.is_dirty = ctrl_isdirty_##vname, \
	.clear_dirty = ctrl_cleardirty_##vname


#define VCREATE_FUNCS(vname) \
static int ctrl_get_##vname(struct pvr2_ctrl *cptr,int *vp) \
{*vp = cptr->hdw->vname##_val; return 0;} \
static int ctrl_set_##vname(struct pvr2_ctrl *cptr,int m,int v) \
{cptr->hdw->vname##_val = v; cptr->hdw->vname##_dirty = !0; return 0;} \
static int ctrl_isdirty_##vname(struct pvr2_ctrl *cptr) \
{return cptr->hdw->vname##_dirty != 0;} \
static void ctrl_cleardirty_##vname(struct pvr2_ctrl *cptr) \
{cptr->hdw->vname##_dirty = 0;}

VCREATE_FUNCS(brightness)
VCREATE_FUNCS(contrast)
VCREATE_FUNCS(saturation)
VCREATE_FUNCS(hue)
VCREATE_FUNCS(volume)
VCREATE_FUNCS(balance)
VCREATE_FUNCS(bass)
VCREATE_FUNCS(treble)
VCREATE_FUNCS(mute)
VCREATE_FUNCS(audiomode)
VCREATE_FUNCS(res_hor)
VCREATE_FUNCS(res_ver)
VCREATE_FUNCS(srate)

/* Table definition of all controls which can be manipulated */
static const struct pvr2_ctl_info control_defs[] = {
	{
		.v4l_id = V4L2_CID_BRIGHTNESS,
		.desc = "Brightness",
		.name = "brightness",
		.default_value = 128,
		DEFREF(brightness),
		DEFINT(0,255),
	},{
		.v4l_id = V4L2_CID_CONTRAST,
		.desc = "Contrast",
		.name = "contrast",
		.default_value = 68,
		DEFREF(contrast),
		DEFINT(0,127),
	},{
		.v4l_id = V4L2_CID_SATURATION,
		.desc = "Saturation",
		.name = "saturation",
		.default_value = 64,
		DEFREF(saturation),
		DEFINT(0,127),
	},{
		.v4l_id = V4L2_CID_HUE,
		.desc = "Hue",
		.name = "hue",
		.default_value = 0,
		DEFREF(hue),
		DEFINT(-128,127),
	},{
		.v4l_id = V4L2_CID_AUDIO_VOLUME,
		.desc = "Volume",
		.name = "volume",
		.default_value = 62000,
		DEFREF(volume),
		DEFINT(0,65535),
	},{
		.v4l_id = V4L2_CID_AUDIO_BALANCE,
		.desc = "Balance",
		.name = "balance",
		.default_value = 0,
		DEFREF(balance),
		DEFINT(-32768,32767),
	},{
		.v4l_id = V4L2_CID_AUDIO_BASS,
		.desc = "Bass",
		.name = "bass",
		.default_value = 0,
		DEFREF(bass),
		DEFINT(-32768,32767),
	},{
		.v4l_id = V4L2_CID_AUDIO_TREBLE,
		.desc = "Treble",
		.name = "treble",
		.default_value = 0,
		DEFREF(treble),
		DEFINT(-32768,32767),
	},{
		.v4l_id = V4L2_CID_AUDIO_MUTE,
		.desc = "Mute",
		.name = "mute",
		.default_value = 0,
		DEFREF(mute),
		DEFBOOL,
	},{
		.desc = "Video Source",
		.name = "input",
		.internal_id = PVR2_CID_INPUT,
		.default_value = PVR2_CVAL_INPUT_TV,
		DEFREF(input),
		DEFENUM(control_values_input),
	},{
		.desc = "Audio Mode",
		.name = "audio_mode",
		.internal_id = PVR2_CID_AUDIOMODE,
		.default_value = V4L2_TUNER_MODE_STEREO,
		DEFREF(audiomode),
		DEFENUM(control_values_audiomode),
	},{
		.desc = "Horizontal capture resolution",
		.name = "resolution_hor",
		.internal_id = PVR2_CID_HRES,
		.default_value = 720,
		DEFREF(res_hor),
		DEFINT(19,720),
	},{
		.desc = "Vertical capture resolution",
		.name = "resolution_ver",
		.internal_id = PVR2_CID_VRES,
		.default_value = 480,
		DEFREF(res_ver),
		DEFINT(17,576),
		/* Hook in check for video standard and adjust maximum
		   depending on the standard. */
		.get_max_value = ctrl_vres_max_get,
		.get_min_value = ctrl_vres_min_get,
	},{
		.v4l_id = V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
		.default_value = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
		.desc = "Audio Sampling Frequency",
		.name = "srate",
		DEFREF(srate),
		DEFENUM(control_values_srate),
	},{
		.desc = "Tuner Frequency (Hz)",
		.name = "frequency",
		.internal_id = PVR2_CID_FREQUENCY,
		.default_value = 0,
		.set_value = ctrl_freq_set,
		.get_value = ctrl_freq_get,
		.is_dirty = ctrl_freq_is_dirty,
		.clear_dirty = ctrl_freq_clear_dirty,
		DEFINT(0,0),
		/* Hook in check for input value (tv/radio) and adjust
		   max/min values accordingly */
		.get_max_value = ctrl_freq_max_get,
		.get_min_value = ctrl_freq_min_get,
	},{
		.desc = "Channel",
		.name = "channel",
		.set_value = ctrl_channel_set,
		.get_value = ctrl_channel_get,
		DEFINT(0,FREQTABLE_SIZE),
	},{
		.desc = "Channel Program Frequency",
		.name = "freq_table_value",
		.set_value = ctrl_channelfreq_set,
		.get_value = ctrl_channelfreq_get,
		DEFINT(0,0),
		/* Hook in check for input value (tv/radio) and adjust
		   max/min values accordingly */
		.get_max_value = ctrl_freq_max_get,
		.get_min_value = ctrl_freq_min_get,
	},{
		.desc = "Channel Program ID",
		.name = "freq_table_channel",
		.set_value = ctrl_channelprog_set,
		.get_value = ctrl_channelprog_get,
		DEFINT(0,FREQTABLE_SIZE),
	},{
		.desc = "Streaming Enabled",
		.name = "streaming_enabled",
		.get_value = ctrl_streamingenabled_get,
		DEFBOOL,
	},{
		.desc = "USB Speed",
		.name = "usb_speed",
		.get_value = ctrl_hsm_get,
		DEFENUM(control_values_hsm),
	},{
		.desc = "Master State",
		.name = "master_state",
		.get_value = ctrl_masterstate_get,
		DEFENUM(pvr2_state_names),
	},{
		.desc = "Signal Present",
		.name = "signal_present",
		.get_value = ctrl_signal_get,
		DEFINT(0,65535),
	},{
		.desc = "Audio Modes Present",
		.name = "audio_modes_present",
		.get_value = ctrl_audio_modes_present_get,
		/* For this type we "borrow" the V4L2_TUNER_MODE enum from
		   v4l.  Nothing outside of this module cares about this,
		   but I reuse it in order to also reuse the
		   control_values_audiomode string table. */
		DEFMASK(((1 << V4L2_TUNER_MODE_MONO)|
			 (1 << V4L2_TUNER_MODE_STEREO)|
			 (1 << V4L2_TUNER_MODE_LANG1)|
			 (1 << V4L2_TUNER_MODE_LANG2)),
			control_values_audiomode),
	},{
		.desc = "Video Standards Available Mask",
		.name = "video_standard_mask_available",
		.internal_id = PVR2_CID_STDAVAIL,
		.skip_init = !0,
		.get_value = ctrl_stdavail_get,
		.set_value = ctrl_stdavail_set,
		.val_to_sym = ctrl_std_val_to_sym,
		.sym_to_val = ctrl_std_sym_to_val,
		.type = pvr2_ctl_bitmask,
	},{
		.desc = "Video Standards In Use Mask",
		.name = "video_standard_mask_active",
		.internal_id = PVR2_CID_STDCUR,
		.skip_init = !0,
		.get_value = ctrl_stdcur_get,
		.set_value = ctrl_stdcur_set,
		.is_dirty = ctrl_stdcur_is_dirty,
		.clear_dirty = ctrl_stdcur_clear_dirty,
		.val_to_sym = ctrl_std_val_to_sym,
		.sym_to_val = ctrl_std_sym_to_val,
		.type = pvr2_ctl_bitmask,
	},{
		.desc = "Video Standard Name",
		.name = "video_standard",
		.internal_id = PVR2_CID_STDENUM,
		.skip_init = !0,
		.get_value = ctrl_stdenumcur_get,
		.set_value = ctrl_stdenumcur_set,
		.is_dirty = ctrl_stdenumcur_is_dirty,
		.clear_dirty = ctrl_stdenumcur_clear_dirty,
		.type = pvr2_ctl_enum,
	}
};

#define CTRLDEF_COUNT ARRAY_SIZE(control_defs)


const char *pvr2_config_get_name(enum pvr2_config cfg)
{
	switch (cfg) {
	case pvr2_config_empty: return "empty";
	case pvr2_config_mpeg: return "mpeg";
	case pvr2_config_vbi: return "vbi";
	case pvr2_config_pcm: return "pcm";
	case pvr2_config_rawvideo: return "raw video";
	}
	return "<unknown>";
}


struct usb_device *pvr2_hdw_get_dev(struct pvr2_hdw *hdw)
{
	return hdw->usb_dev;
}


unsigned long pvr2_hdw_get_sn(struct pvr2_hdw *hdw)
{
	return hdw->serial_number;
}


const char *pvr2_hdw_get_bus_info(struct pvr2_hdw *hdw)
{
	return hdw->bus_info;
}


unsigned long pvr2_hdw_get_cur_freq(struct pvr2_hdw *hdw)
{
	return hdw->freqSelector ? hdw->freqValTelevision : hdw->freqValRadio;
}

/* Set the currently tuned frequency and account for all possible
   driver-core side effects of this action. */
void pvr2_hdw_set_cur_freq(struct pvr2_hdw *hdw,unsigned long val)
{
	if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) {
		if (hdw->freqSelector) {
			/* Swing over to radio frequency selection */
			hdw->freqSelector = 0;
			hdw->freqDirty = !0;
		}
		if (hdw->freqValRadio != val) {
			hdw->freqValRadio = val;
			hdw->freqSlotRadio = 0;
			hdw->freqDirty = !0;
		}
	} else {
		if (!(hdw->freqSelector)) {
			/* Swing over to television frequency selection */
			hdw->freqSelector = 1;
			hdw->freqDirty = !0;
		}
		if (hdw->freqValTelevision != val) {
			hdw->freqValTelevision = val;
			hdw->freqSlotTelevision = 0;
			hdw->freqDirty = !0;
		}
	}
}

int pvr2_hdw_get_unit_number(struct pvr2_hdw *hdw)
{
	return hdw->unit_number;
}


/* Attempt to locate one of the given set of files.  Messages are logged
   appropriate to what has been found.  The return value will be 0 or
   greater on success (it will be the index of the file name found) and
   fw_entry will be filled in.  Otherwise a negative error is returned on
   failure.  If the return value is -ENOENT then no viable firmware file
   could be located. */
static int pvr2_locate_firmware(struct pvr2_hdw *hdw,
				const struct firmware **fw_entry,
				const char *fwtypename,
				unsigned int fwcount,
				const char *fwnames[])
{
	unsigned int idx;
	int ret = -EINVAL;
	for (idx = 0; idx < fwcount; idx++) {
		ret = request_firmware(fw_entry,
				       fwnames[idx],
				       &hdw->usb_dev->dev);
		if (!ret) {
			trace_firmware("Located %s firmware: %s;"
				       " uploading...",
				       fwtypename,
				       fwnames[idx]);
			return idx;
		}
		if (ret == -ENOENT) continue;
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "request_firmware fatal error with code=%d",ret);
		return ret;
	}
	pvr2_trace(PVR2_TRACE_ERROR_LEGS,
		   "***WARNING***"
		   " Device %s firmware"
		   " seems to be missing.",
		   fwtypename);
	pvr2_trace(PVR2_TRACE_ERROR_LEGS,
		   "Did you install the pvrusb2 firmware files"
		   " in their proper location?");
	if (fwcount == 1) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "request_firmware unable to locate %s file %s",
			   fwtypename,fwnames[0]);
	} else {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "request_firmware unable to locate"
			   " one of the following %s files:",
			   fwtypename);
		for (idx = 0; idx < fwcount; idx++) {
			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
				   "request_firmware: Failed to find %s",
				   fwnames[idx]);
		}
	}
	return ret;
}


/*
 * pvr2_upload_firmware1().
 *
 * Send the 8051 firmware to the device.  After the upload, arrange for
 * device to re-enumerate.
 *
 * NOTE : the pointer to the firmware data given by request_firmware()
 * is not suitable for an usb transaction.
 *
 */
static int pvr2_upload_firmware1(struct pvr2_hdw *hdw)
{
	const struct firmware *fw_entry = NULL;
	void  *fw_ptr;
	unsigned int pipe;
	int ret;
	u16 address;

	if (!hdw->hdw_desc->fx2_firmware.cnt) {
		hdw->fw1_state = FW1_STATE_OK;
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "Connected device type defines"
			   " no firmware to upload; ignoring firmware");
		return -ENOTTY;
	}

	hdw->fw1_state = FW1_STATE_FAILED; // default result

	trace_firmware("pvr2_upload_firmware1");

	ret = pvr2_locate_firmware(hdw,&fw_entry,"fx2 controller",
				   hdw->hdw_desc->fx2_firmware.cnt,
				   hdw->hdw_desc->fx2_firmware.lst);
	if (ret < 0) {
		if (ret == -ENOENT) hdw->fw1_state = FW1_STATE_MISSING;
		return ret;
	}

	usb_settoggle(hdw->usb_dev, 0 & 0xf, !(0 & USB_DIR_IN), 0);
	usb_clear_halt(hdw->usb_dev, usb_sndbulkpipe(hdw->usb_dev, 0 & 0x7f));

	pipe = usb_sndctrlpipe(hdw->usb_dev, 0);

	if (fw_entry->size != 0x2000){
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,"wrong fx2 firmware size");
		release_firmware(fw_entry);
		return -ENOMEM;
	}

	fw_ptr = kmalloc(0x800, GFP_KERNEL);
	if (fw_ptr == NULL){
		release_firmware(fw_entry);
		return -ENOMEM;
	}

	/* We have to hold the CPU during firmware upload. */
	pvr2_hdw_cpureset_assert(hdw,1);

	/* upload the firmware to address 0000-1fff in 2048 (=0x800) bytes
	   chunk. */

	ret = 0;
	for(address = 0; address < fw_entry->size; address += 0x800) {
		memcpy(fw_ptr, fw_entry->data + address, 0x800);
		ret += usb_control_msg(hdw->usb_dev, pipe, 0xa0, 0x40, address,
				       0, fw_ptr, 0x800, HZ);
	}

	trace_firmware("Upload done, releasing device's CPU");

	/* Now release the CPU.  It will disconnect and reconnect later. */
	pvr2_hdw_cpureset_assert(hdw,0);

	kfree(fw_ptr);
	release_firmware(fw_entry);

	trace_firmware("Upload done (%d bytes sent)",ret);

	/* We should have written 8192 bytes */
	if (ret == 8192) {
		hdw->fw1_state = FW1_STATE_RELOAD;
		return 0;
	}

	return -EIO;
}


/*
 * pvr2_upload_firmware2()
 *
 * This uploads encoder firmware on endpoint 2.
 *
 */

int pvr2_upload_firmware2(struct pvr2_hdw *hdw)
{
	const struct firmware *fw_entry = NULL;
	void  *fw_ptr;
	unsigned int pipe, fw_len, fw_done, bcnt, icnt;
	int actual_length;
	int ret = 0;
	int fwidx;
	static const char *fw_files[] = {
		CX2341X_FIRM_ENC_FILENAME,
	};

	if (hdw->hdw_desc->flag_skip_cx23416_firmware) {
		return 0;
	}

	trace_firmware("pvr2_upload_firmware2");

	ret = pvr2_locate_firmware(hdw,&fw_entry,"encoder",
				   ARRAY_SIZE(fw_files), fw_files);
	if (ret < 0) return ret;
	fwidx = ret;
	ret = 0;
	/* Since we're about to completely reinitialize the encoder,
	   invalidate our cached copy of its configuration state.  Next
	   time we configure the encoder, then we'll fully configure it. */
	hdw->enc_cur_valid = 0;

	/* First prepare firmware loading */
	ret |= pvr2_write_register(hdw, 0x0048, 0xffffffff); /*interrupt mask*/
	ret |= pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000088); /*gpio dir*/
	ret |= pvr2_hdw_gpio_chg_out(hdw,0xffffffff,0x00000008); /*gpio output state*/
	ret |= pvr2_hdw_cmd_deep_reset(hdw);
	ret |= pvr2_write_register(hdw, 0xa064, 0x00000000); /*APU command*/
	ret |= pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000408); /*gpio dir*/
	ret |= pvr2_hdw_gpio_chg_out(hdw,0xffffffff,0x00000008); /*gpio output state*/
	ret |= pvr2_write_register(hdw, 0x9058, 0xffffffed); /*VPU ctrl*/
	ret |= pvr2_write_register(hdw, 0x9054, 0xfffffffd); /*reset hw blocks*/
	ret |= pvr2_write_register(hdw, 0x07f8, 0x80000800); /*encoder SDRAM refresh*/
	ret |= pvr2_write_register(hdw, 0x07fc, 0x0000001a); /*encoder SDRAM pre-charge*/
	ret |= pvr2_write_register(hdw, 0x0700, 0x00000000); /*I2C clock*/
	ret |= pvr2_write_register(hdw, 0xaa00, 0x00000000); /*unknown*/
	ret |= pvr2_write_register(hdw, 0xaa04, 0x00057810); /*unknown*/
	ret |= pvr2_write_register(hdw, 0xaa10, 0x00148500); /*unknown*/
	ret |= pvr2_write_register(hdw, 0xaa18, 0x00840000); /*unknown*/
	LOCK_TAKE(hdw->ctl_lock); do {
		hdw->cmd_buffer[0] = FX2CMD_FWPOST1;
		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,1,NULL,0);
		hdw->cmd_buffer[0] = FX2CMD_MEMSEL;
		hdw->cmd_buffer[1] = 0;
		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,NULL,0);
	} while (0); LOCK_GIVE(hdw->ctl_lock);

	if (ret) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "firmware2 upload prep failed, ret=%d",ret);
		release_firmware(fw_entry);
		return ret;
	}

	/* Now send firmware */

	fw_len = fw_entry->size;

	if (fw_len % sizeof(u32)) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "size of %s firmware"
			   " must be a multiple of %zu bytes",
			   fw_files[fwidx],sizeof(u32));
		release_firmware(fw_entry);
		return -1;
	}

	fw_ptr = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
	if (fw_ptr == NULL){
		release_firmware(fw_entry);
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "failed to allocate memory for firmware2 upload");
		return -ENOMEM;
	}

	pipe = usb_sndbulkpipe(hdw->usb_dev, PVR2_FIRMWARE_ENDPOINT);

	fw_done = 0;
	for (fw_done = 0; fw_done < fw_len;) {
		bcnt = fw_len - fw_done;
		if (bcnt > FIRMWARE_CHUNK_SIZE) bcnt = FIRMWARE_CHUNK_SIZE;
		memcpy(fw_ptr, fw_entry->data + fw_done, bcnt);
		/* Usbsnoop log shows that we must swap bytes... */
		for (icnt = 0; icnt < bcnt/4 ; icnt++)
			((u32 *)fw_ptr)[icnt] =
				___swab32(((u32 *)fw_ptr)[icnt]);

		ret |= usb_bulk_msg(hdw->usb_dev, pipe, fw_ptr,bcnt,
				    &actual_length, HZ);
		ret |= (actual_length != bcnt);
		if (ret) break;
		fw_done += bcnt;
	}

	trace_firmware("upload of %s : %i / %i ",
		       fw_files[fwidx],fw_done,fw_len);

	kfree(fw_ptr);
	release_firmware(fw_entry);

	if (ret) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "firmware2 upload transfer failure");
		return ret;
	}

	/* Finish upload */

	ret |= pvr2_write_register(hdw, 0x9054, 0xffffffff); /*reset hw blocks*/
	ret |= pvr2_write_register(hdw, 0x9058, 0xffffffe8); /*VPU ctrl*/
	LOCK_TAKE(hdw->ctl_lock); do {
		hdw->cmd_buffer[0] = FX2CMD_MEMSEL;
		hdw->cmd_buffer[1] = 0;
		ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,NULL,0);
	} while (0); LOCK_GIVE(hdw->ctl_lock);

	if (ret) {
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "firmware2 upload post-proc failure");
	}
	return ret;
}


static const char *pvr2_get_state_name(unsigned int st)
{
	if (st < ARRAY_SIZE(pvr2_state_names)) {
		return pvr2_state_names[st];
	}
	return "???";
}

static int pvr2_decoder_enable(struct pvr2_hdw *hdw,int enablefl)
{
	if (!hdw->decoder_ctrl) {
		if (!hdw->flag_decoder_missed) {
			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
				   "WARNING: No decoder present");
			hdw->flag_decoder_missed = !0;
			trace_stbit("flag_decoder_missed",
				    hdw->flag_decoder_missed);
		}
		return -EIO;
	}
	hdw->decoder_ctrl->enable(hdw->decoder_ctrl->ctxt,enablefl);
	return 0;
}


void pvr2_hdw_set_decoder(struct pvr2_hdw *hdw,struct pvr2_decoder_ctrl *ptr)
{
	if (hdw->decoder_ctrl == ptr) return;
	hdw->decoder_ctrl = ptr;
	if (hdw->decoder_ctrl && hdw->flag_decoder_missed) {
		hdw->flag_decoder_missed = 0;
		trace_stbit("flag_decoder_missed",
			    hdw->flag_decoder_missed);
		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
			   "Decoder has appeared");
		pvr2_hdw_state_sched(hdw);
	}
}


int pvr2_hdw_get_state(struct pvr2_hdw *hdw)
{
	return hdw->master_state;
}


static int pvr2_hdw_untrip_unlocked(struct pvr2_hdw *hdw)
{
	if (!hdw->flag_tripped) return 0;
	hdw->flag_tripped = 0;
	pvr2_trace(PVR2_TRACE_ERROR_LEGS,
		   "Clearing driver error statuss");
	return !0;
}


int pvr2_hdw_untrip(struct pvr2_hdw *hdw)
{
	int fl;
	LOCK_TAKE(hdw->big_lock); do {
		fl = pvr2_hdw_untrip_unlocked(hdw);
	} while (0); LOCK_GIVE(hdw->big_lock);
	if (fl) pvr2_hdw_state_sched(hdw);
	return 0;
}


const char *pvr2_hdw_get_state_name(unsigned int id)
{
	if (id >= ARRAY_SIZE(pvr2_state_names)) return NULL;
	return pvr2_state_names[id];
}


int pvr2_hdw_get_streaming(struct pvr2_hdw *hdw)
{
	return hdw->state_pipeline_req != 0;
}


int pvr2_hdw_set_streaming(struct pvr2_hdw *hdw,int enable_flag)
{
	int ret,st;
	LOCK_TAKE(hdw->big_lock); do {
		pvr2_hdw_untrip_unlocked(hdw);
		if ((!enable_flag) != !(hdw->state_pipeline_req)) {
			hdw->state_pipeline_req = enable_flag != 0;
			pvr2_trace(PVR2_TRACE_START_STOP,
				   "/*--TRACE_STREAM--*/ %s",
				   enable_flag ? "enable" : "disable");
		}
		pvr2_hdw_state_sched(hdw);
	} while (0); LOCK_GIVE(hdw->big_lock);
	if ((ret = pvr2_hdw_wait(hdw,0)) < 0) return ret;
	if (enable_flag) {
		while ((st = hdw->master_state) != PVR2_STATE_RUN) {
			if (st != PVR2_STATE_READY) return -EIO;
			if ((ret = pvr2_hdw_wait(hdw,st)) < 0) return ret;
		}
	}
	return 0;
}


int pvr2_hdw_set_stream_type(struct pvr2_hdw *hdw,enum pvr2_config config)
{
	int fl;
	LOCK_TAKE(hdw->big_lock);
	if ((fl = (hdw->desired_stream_type != config)) != 0) {
		hdw->desired_stream_type = config;
		hdw->state_pipeline_config = 0;
		trace_stbit("state_pipeline_config",
			    hdw->state_pipeline_config);
		pvr2_hdw_state_sched(hdw);
	}
	LOCK_GIVE(hdw->big_lock);
	if (fl) return 0;
	return pvr2_hdw_wait(hdw,0);
}


static int get_default_tuner_type(struct pvr2_hdw *hdw)
{
	int unit_number = hdw->unit_number;
	int tp = -1;
	if ((unit_number >= 0) && (unit_number < PVR_NUM)) {
		tp = tuner[unit_number];
	}
	if (tp < 0) return -EINVAL;
	hdw->tuner_type = tp;
	hdw->tuner_updated = !0;
	return 0;
}


static v4l2_std_id get_default_standard(struct pvr2_hdw *hdw)
{
	int unit_number = hdw->unit_number;
	int tp = 0;
	if ((unit_number >= 0) && (unit_number < PVR_NUM)) {
		tp = video_std[unit_number];
		if (tp) return tp;
	}
	return 0;
}


static unsigned int get_default_error_tolerance(struct pvr2_hdw *hdw)
{
	int unit_number = hdw->unit_number;
	int tp = 0;
	if ((unit_number >= 0) && (unit_number < PVR_NUM)) {
		tp = tolerance[unit_number];
	}
	return tp;
}


static int pvr2_hdw_check_firmware(struct pvr2_hdw *hdw)
{
	/* Try a harmless request to fetch the eeprom's address over
	   endpoint 1.  See what happens.  Only the full FX2 image can
	   respond to this.  If this probe fails then likely the FX2
	   firmware needs be loaded. */
	int result;
	LOCK_TAKE(hdw->ctl_lock); do {
		hdw->cmd_buffer[0] = FX2CMD_GET_EEPROM_ADDR;
		result = pvr2_send_request_ex(hdw,HZ*1,!0,
					   hdw->cmd_buffer,1,
					   hdw->cmd_buffer,1);
		if (result < 0) break;
	} while(0); LOCK_GIVE(hdw->ctl_lock);
	if (result) {
		pvr2_trace(PVR2_TRACE_INIT,
			   "Probe of device endpoint 1 result status %d",
			   result);
	} else {
		pvr2_trace(PVR2_TRACE_INIT,
			   "Probe of device endpoint 1 succeeded");
	}
	return result == 0;
}

struct pvr2_std_hack {
	v4l2_std_id pat;  /* Pattern to match */
	v4l2_std_id msk;  /* Which bits we care about */
	v4l2_std_id std;  /* What additional standards or default to set */
};

/* This data structure labels specific combinations of standards from
   tveeprom that we'll try to recognize.  If we recognize one, then assume
   a specified default standard to use.  This is here because tveeprom only
   tells us about available standards not the intended default standard (if
   any) for the device in question.  We guess the default based on what has
   been reported as available.  Note that this is only for guessing a
   default - which can always be overridden explicitly - and if the user
   has otherwise named a default then that default will always be used in
   place of this table. */
const static struct pvr2_std_hack std_eeprom_maps[] = {
	{	/* PAL(B/G) */
		.pat = V4L2_STD_B|V4L2_STD_GH,
		.std = V4L2_STD_PAL_B|V4L2_STD_PAL_B1|V4L2_STD_PAL_G,
	},
	{	/* NTSC(M) */
		.pat = V4L2_STD_MN,
		.std = V4L2_STD_NTSC_M,
	},
	{	/* PAL(I) */
		.pat = V4L2_STD_PAL_I,
		.std = V4L2_STD_PAL_I,
	},
	{	/* SECAM(L/L') */
		.pat = V4L2_STD_SECAM_L|V4L2_STD_SECAM_LC,
		.std = V4L2_STD_SECAM_L|V4L2_STD_SECAM_LC,
	},
	{	/* PAL(D/D1/K) */
		.pat = V4L2_STD_DK,
Mode	Name	Size
-rw-r--r--	Kconfig	2778	log stats plain blame
-rw-r--r--	Makefile	153	log stats plain blame
-rw-r--r--	af_ipx.c	51483	log stats plain blame
-rw-r--r--	ipx_proc.c	8235	log stats plain blame
-rw-r--r--	ipx_route.c	6962	log stats plain blame
-rw-r--r--	sysctl_net_ipx.c	1013	log stats plain blame