diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c deleted file mode 100644 index 895859ec495..00000000000 --- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * - * - * Copyright (C) 2005 Mike Isely <isely@pobox.com> - * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> - * - * 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 - * - */ - -/* - - This source file is specifically designed to interface with the - cx2584x, in kernels 2.6.16 or newer. - -*/ - -#include "pvrusb2-cx2584x-v4l.h" -#include "pvrusb2-video-v4l.h" -#include "pvrusb2-i2c-cmd-v4l2.h" - - -#include "pvrusb2-hdw-internal.h" -#include "pvrusb2-debug.h" -#include <media/cx25840.h> -#include <linux/videodev2.h> -#include <media/v4l2-common.h> -#include <linux/errno.h> -#include <linux/slab.h> - -struct pvr2_v4l_cx2584x { - struct pvr2_i2c_handler handler; - struct pvr2_decoder_ctrl ctrl; - struct pvr2_i2c_client *client; - struct pvr2_hdw *hdw; - unsigned long stale_mask; -}; - - -struct routing_scheme_item { - int vid; - int aud; -}; - -struct routing_scheme { - const struct routing_scheme_item *def; - unsigned int cnt; -}; - -static const struct routing_scheme_item routing_scheme0[] = { - [PVR2_CVAL_INPUT_TV] = { - .vid = CX25840_COMPOSITE7, - .aud = CX25840_AUDIO8, - }, - [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */ - .vid = CX25840_COMPOSITE3, - .aud = CX25840_AUDIO_SERIAL, - }, - [PVR2_CVAL_INPUT_COMPOSITE] = { - .vid = CX25840_COMPOSITE3, - .aud = CX25840_AUDIO_SERIAL, - }, - [PVR2_CVAL_INPUT_SVIDEO] = { - .vid = CX25840_SVIDEO1, - .aud = CX25840_AUDIO_SERIAL, - }, -}; - -/* Specific to gotview device */ -static const struct routing_scheme_item routing_schemegv[] = { - [PVR2_CVAL_INPUT_TV] = { - .vid = CX25840_COMPOSITE2, - .aud = CX25840_AUDIO5, - }, - [PVR2_CVAL_INPUT_RADIO] = { - /* line-in is used for radio and composite. A GPIO is - used to switch between the two choices. */ - .vid = CX25840_COMPOSITE1, - .aud = CX25840_AUDIO_SERIAL, - }, - [PVR2_CVAL_INPUT_COMPOSITE] = { - .vid = CX25840_COMPOSITE1, - .aud = CX25840_AUDIO_SERIAL, - }, - [PVR2_CVAL_INPUT_SVIDEO] = { - .vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4), - .aud = CX25840_AUDIO_SERIAL, - }, -}; - -static const struct routing_scheme routing_schemes[] = { - [PVR2_ROUTING_SCHEME_HAUPPAUGE] = { - .def = routing_scheme0, - .cnt = ARRAY_SIZE(routing_scheme0), - }, - [PVR2_ROUTING_SCHEME_GOTVIEW] = { - .def = routing_schemegv, - .cnt = ARRAY_SIZE(routing_schemegv), - }, -}; - -static void set_input(struct pvr2_v4l_cx2584x *ctxt) -{ - struct pvr2_hdw *hdw = ctxt->hdw; - struct v4l2_routing route; - enum cx25840_video_input vid_input; - enum cx25840_audio_input aud_input; - const struct routing_scheme *sp; - unsigned int sid = hdw->hdw_desc->signal_routing_scheme; - - memset(&route,0,sizeof(route)); - - if ((sid < ARRAY_SIZE(routing_schemes)) && - ((sp = routing_schemes + sid) != NULL) && - (hdw->input_val >= 0) && - (hdw->input_val < sp->cnt)) { - vid_input = sp->def[hdw->input_val].vid; - aud_input = sp->def[hdw->input_val].aud; - } else { - pvr2_trace(PVR2_TRACE_ERROR_LEGS, - "*** WARNING *** i2c cx2584x set_input:" - " Invalid routing scheme (%u) and/or input (%d)", - sid,hdw->input_val); - return; - } - - pvr2_trace(PVR2_TRACE_CHIPS,"i2c cx2584x set_input vid=0x%x aud=0x%x", - vid_input,aud_input); - route.input = (u32)vid_input; - pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_VIDEO_ROUTING,&route); - route.input = (u32)aud_input; - pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_AUDIO_ROUTING,&route); -} - - -static int check_input(struct pvr2_v4l_cx2584x *ctxt) -{ - struct pvr2_hdw *hdw = ctxt->hdw; - return hdw->input_dirty != 0; -} - - -static void set_audio(struct pvr2_v4l_cx2584x *ctxt) -{ - u32 val; - struct pvr2_hdw *hdw = ctxt->hdw; - - pvr2_trace(PVR2_TRACE_CHIPS,"i2c cx2584x set_audio %d", - hdw->srate_val); - switch (hdw->srate_val) { - default: - case V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000: - val = 48000; - break; - case V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100: - val = 44100; - break; - case V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000: - val = 32000; - break; - } - pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_AUDIO_CLOCK_FREQ,&val); -} - - -static int check_audio(struct pvr2_v4l_cx2584x *ctxt) -{ - struct pvr2_hdw *hdw = ctxt->hdw; - return hdw->srate_dirty != 0; -} - - -struct pvr2_v4l_cx2584x_ops { - void (*update)(struct pvr2_v4l_cx2584x *); - int (*check)(struct pvr2_v4l_cx2584x *); -}; - - -static const struct pvr2_v4l_cx2584x_ops decoder_ops[] = { - { .update = set_input, .check = check_input}, - { .update = set_audio, .check = check_audio}, -}; - - -static void decoder_detach(struct pvr2_v4l_cx2584x *ctxt) -{ - ctxt->client->handler = NULL; - pvr2_hdw_set_decoder(ctxt->hdw,NULL); - kfree(ctxt); -} - - -static int decoder_check(struct pvr2_v4l_cx2584x *ctxt) -{ - unsigned long msk; - unsigned int idx; - - for (idx = 0; idx < ARRAY_SIZE(decoder_ops); idx++) { - msk = 1 << idx; - if (ctxt->stale_mask & msk) continue; - if (decoder_ops[idx].check(ctxt)) { - ctxt->stale_mask |= msk; - } - } - return ctxt->stale_mask != 0; -} - - -static void decoder_update(struct pvr2_v4l_cx2584x *ctxt) -{ - unsigned long msk; - unsigned int idx; - - for (idx = 0; idx < ARRAY_SIZE(decoder_ops); idx++) { - msk = 1 << idx; - if (!(ctxt->stale_mask & msk)) continue; - ctxt->stale_mask &= ~msk; - decoder_ops[idx].update(ctxt); - } -} - - -static void decoder_enable(struct pvr2_v4l_cx2584x *ctxt,int fl) -{ - pvr2_trace(PVR2_TRACE_CHIPS,"i2c cx25840 decoder_enable(%d)",fl); - pvr2_v4l2_cmd_stream(ctxt->client,fl); -} - - -static int decoder_detect(struct pvr2_i2c_client *cp) -{ - int ret; - /* Attempt to query the decoder - let's see if it will answer */ - struct v4l2_queryctrl qc; - - memset(&qc,0,sizeof(qc)); - - qc.id = V4L2_CID_BRIGHTNESS; - - ret = pvr2_i2c_client_cmd(cp,VIDIOC_QUERYCTRL,&qc); - return ret == 0; /* Return true if it answered */ -} - - -static unsigned int decoder_describe(struct pvr2_v4l_cx2584x *ctxt, - char *buf,unsigned int cnt) -{ - return scnprintf(buf,cnt,"handler: pvrusb2-cx2584x-v4l"); -} - - -static void decoder_reset(struct pvr2_v4l_cx2584x *ctxt) -{ - int ret; - ret = pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_RESET,NULL); - pvr2_trace(PVR2_TRACE_CHIPS,"i2c cx25840 decoder_reset (ret=%d)",ret); -} - - -static const struct pvr2_i2c_handler_functions hfuncs = { - .detach = (void (*)(void *))decoder_detach, - .check = (int (*)(void *))decoder_check, - .update = (void (*)(void *))decoder_update, - .describe = (unsigned int (*)(void *,char *,unsigned int))decoder_describe, -}; - - -int pvr2_i2c_cx2584x_v4l_setup(struct pvr2_hdw *hdw, - struct pvr2_i2c_client *cp) -{ - struct pvr2_v4l_cx2584x *ctxt; - - if (hdw->decoder_ctrl) return 0; - if (cp->handler) return 0; - if (!decoder_detect(cp)) return 0; - - ctxt = kzalloc(sizeof(*ctxt),GFP_KERNEL); - if (!ctxt) return 0; - - ctxt->handler.func_data = ctxt; - ctxt->handler.func_table = &hfuncs; - ctxt->ctrl.ctxt = ctxt; - ctxt->ctrl.detach = (void (*)(void *))decoder_detach; - ctxt->ctrl.enable = (void (*)(void *,int))decoder_enable; - ctxt->ctrl.force_reset = (void (*)(void*))decoder_reset; - ctxt->client = cp; - ctxt->hdw = hdw; - ctxt->stale_mask = (1 << ARRAY_SIZE(decoder_ops)) - 1; - pvr2_hdw_set_decoder(hdw,&ctxt->ctrl); - cp->handler = &ctxt->handler; - { - /* - Mike Isely <isely@pobox.com> 19-Nov-2006 - This bit - of nuttiness for cx25840 causes that module to - correctly set up its video scaling. This is really - a problem in the cx25840 module itself, but we work - around it here. The problem has not been seen in - ivtv because there VBI is supported and set up. We - don't do VBI here (at least not yet) and thus we - never attempted to even set it up. - */ - struct v4l2_format fmt; - memset(&fmt,0,sizeof(fmt)); - fmt.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE; - pvr2_i2c_client_cmd(ctxt->client,VIDIOC_S_FMT,&fmt); - } - pvr2_trace(PVR2_TRACE_CHIPS,"i2c 0x%x cx2584x V4L2 handler set up", - cp->client->addr); - return !0; -} - - - - -/* - Stuff for Emacs to see, in order to encourage consistent editing style: - *** Local Variables: *** - *** mode: c *** - *** fill-column: 70 *** - *** tab-width: 8 *** - *** c-basic-offset: 8 *** - *** End: *** - */ |