| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sri Deevi | 6045 | 55.21% | 4 | 4.30% |
| Hans Verkuil | 2275 | 20.78% | 32 | 34.41% |
| Palash Bandyopadhyay | 1430 | 13.06% | 1 | 1.08% |
| Mauro Carvalho Chehab | 1042 | 9.52% | 29 | 31.18% |
| Laurent Pinchart | 79 | 0.72% | 6 | 6.45% |
| Devin Heitmueller | 41 | 0.37% | 5 | 5.38% |
| Linus Torvalds | 6 | 0.05% | 1 | 1.08% |
| Colin Ian King | 5 | 0.05% | 2 | 2.15% |
| Jesper Juhl | 4 | 0.04% | 1 | 1.08% |
| Peter Senna Tschudin | 3 | 0.03% | 1 | 1.08% |
| Andrzej Hajda | 3 | 0.03% | 1 | 1.08% |
| Al Viro | 3 | 0.03% | 2 | 2.15% |
| Tejun Heo | 3 | 0.03% | 1 | 1.08% |
| Thomas Gleixner | 2 | 0.02% | 1 | 1.08% |
| Boris Brezillon | 2 | 0.02% | 1 | 1.08% |
| Steven Rostedt | 2 | 0.02% | 1 | 1.08% |
| Julia Lawall | 1 | 0.01% | 1 | 1.08% |
| Geert Uytterhoeven | 1 | 0.01% | 1 | 1.08% |
| Lucas De Marchi | 1 | 0.01% | 1 | 1.08% |
| Ezequiel García | 1 | 0.01% | 1 | 1.08% |
| Total | 10949 | 93 |
// SPDX-License-Identifier: GPL-2.0-or-later /* cx231xx-video.c - driver for Conexant Cx23100/101/102 USB video capture devices Copyright (C) 2008 <srinivasa.deevi at conexant dot com> Based on em28xx driver Based on cx23885 driver Based on cx88 driver */ #include "cx231xx.h" #include <linux/init.h> #include <linux/list.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/bitmap.h> #include <linux/i2c.h> #include <linux/mm.h> #include <linux/mutex.h> #include <linux/slab.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> #include <media/drv-intf/msp3400.h> #include <media/tuner.h> #include <media/dvb_frontend.h> #include "cx231xx-vbi.h" #define CX231XX_VERSION "0.0.3" #define DRIVER_AUTHOR "Srinivasa Deevi <srinivasa.deevi@conexant.com>" #define DRIVER_DESC "Conexant cx231xx based USB video device driver" #define cx231xx_videodbg(fmt, arg...) do {\ if (video_debug) \ printk(KERN_INFO "%s %s :"fmt, \ dev->name, __func__ , ##arg); } while (0) static unsigned int isoc_debug; module_param(isoc_debug, int, 0644); MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); #define cx231xx_isocdbg(fmt, arg...) \ do {\ if (isoc_debug) { \ printk(KERN_INFO "%s %s :"fmt, \ dev->name, __func__ , ##arg); \ } \ } while (0) MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_VERSION(CX231XX_VERSION); static unsigned int card[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; static unsigned int video_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; static unsigned int vbi_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; static unsigned int radio_nr[] = {[0 ... (CX231XX_MAXBOARDS - 1)] = UNSET }; module_param_array(card, int, NULL, 0444); module_param_array(video_nr, int, NULL, 0444); module_param_array(vbi_nr, int, NULL, 0444); module_param_array(radio_nr, int, NULL, 0444); MODULE_PARM_DESC(card, "card type"); MODULE_PARM_DESC(video_nr, "video device numbers"); MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); MODULE_PARM_DESC(radio_nr, "radio device numbers"); static unsigned int video_debug; module_param(video_debug, int, 0644); MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); /* supported video standards */ static struct cx231xx_fmt format[] = { { .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, .reg = 0, }, }; static int cx231xx_enable_analog_tuner(struct cx231xx *dev) { #ifdef CONFIG_MEDIA_CONTROLLER struct media_device *mdev = dev->media_dev; struct media_entity *entity, *decoder = NULL, *source; struct media_link *link, *found_link = NULL; int ret, active_links = 0; if (!mdev) return 0; /* * This will find the tuner that is connected into the decoder. * Technically, this is not 100% correct, as the device may be * using an analog input instead of the tuner. However, as we can't * do DVB streaming while the DMA engine is being used for V4L2, * this should be enough for the actual needs. */ media_device_for_each_entity(entity, mdev) { if (entity->function == MEDIA_ENT_F_ATV_DECODER) { decoder = entity; break; } } if (!decoder) return 0; list_for_each_entry(link, &decoder->links, list) { if (link->sink->entity == decoder) { found_link = link; if (link->flags & MEDIA_LNK_FL_ENABLED) active_links++; break; } } if (active_links == 1 || !found_link) return 0; source = found_link->source->entity; list_for_each_entry(link, &source->links, list) { struct media_entity *sink; int flags = 0; sink = link->sink->entity; if (sink == entity) flags = MEDIA_LNK_FL_ENABLED; ret = media_entity_setup_link(link, flags); if (ret) { dev_err(dev->dev, "Couldn't change link %s->%s to %s. Error %d\n", source->name, sink->name, flags ? "enabled" : "disabled", ret); return ret; } else dev_dbg(dev->dev, "link %s->%s was %s\n", source->name, sink->name, flags ? "ENABLED" : "disabled"); } #endif return 0; } /* ------------------------------------------------------------------ Video buffer and parser functions ------------------------------------------------------------------*/ /* * Announces that a buffer were filled and request the next */ static inline void buffer_filled(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, struct cx231xx_buffer *buf) { /* Advice that buffer was filled */ cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); buf->vb.state = VIDEOBUF_DONE; buf->vb.field_count++; buf->vb.ts = ktime_get_ns(); if (dev->USE_ISO) dev->video_mode.isoc_ctl.buf = NULL; else dev->video_mode.bulk_ctl.buf = NULL; list_del(&buf->vb.queue); wake_up(&buf->vb.done); } static inline void print_err_status(struct cx231xx *dev, int packet, int status) { char *errmsg = "Unknown"; switch (status) { case -ENOENT: errmsg = "unlinked synchronously"; break; case -ECONNRESET: errmsg = "unlinked asynchronously"; break; case -ENOSR: errmsg = "Buffer error (overrun)"; break; case -EPIPE: errmsg = "Stalled (device not responding)"; break; case -EOVERFLOW: errmsg = "Babble (bad cable?)"; break; case -EPROTO: errmsg = "Bit-stuff error (bad cable?)"; break; case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; case -ETIME: errmsg = "Device does not respond"; break; } if (packet < 0) { cx231xx_isocdbg("URB status %d [%s].\n", status, errmsg); } else { cx231xx_isocdbg("URB packet %d, status %d [%s].\n", packet, status, errmsg); } } /* * video-buf generic routine to get the next available buffer */ static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q, struct cx231xx_buffer **buf) { struct cx231xx_video_mode *vmode = container_of(dma_q, struct cx231xx_video_mode, vidq); struct cx231xx *dev = container_of(vmode, struct cx231xx, video_mode); char *outp; if (list_empty(&dma_q->active)) { cx231xx_isocdbg("No active queue to serve\n"); if (dev->USE_ISO) dev->video_mode.isoc_ctl.buf = NULL; else dev->video_mode.bulk_ctl.buf = NULL; *buf = NULL; return; } /* Get the next buffer */ *buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue); /* Cleans up buffer - Useful for testing for frame/URB loss */ outp = videobuf_to_vmalloc(&(*buf)->vb); memset(outp, 0, (*buf)->vb.size); if (dev->USE_ISO) dev->video_mode.isoc_ctl.buf = *buf; else dev->video_mode.bulk_ctl.buf = *buf; return; } /* * Controls the isoc copy of each urb packet */ static inline int cx231xx_isoc_copy(struct cx231xx *dev, struct urb *urb) { struct cx231xx_dmaqueue *dma_q = urb->context; int i; unsigned char *p_buffer; u32 bytes_parsed = 0, buffer_size = 0; u8 sav_eav = 0; if (!dev) return 0; if (dev->state & DEV_DISCONNECTED) return 0; if (urb->status < 0) { print_err_status(dev, -1, urb->status); if (urb->status == -ENOENT) return 0; } for (i = 0; i < urb->number_of_packets; i++) { int status = urb->iso_frame_desc[i].status; if (status < 0) { print_err_status(dev, i, status); if (urb->iso_frame_desc[i].status != -EPROTO) continue; } if (urb->iso_frame_desc[i].actual_length <= 0) { /* cx231xx_isocdbg("packet %d is empty",i); - spammy */ continue; } if (urb->iso_frame_desc[i].actual_length > dev->video_mode.max_pkt_size) { cx231xx_isocdbg("packet bigger than packet size"); continue; } /* get buffer pointer and length */ p_buffer = urb->transfer_buffer + urb->iso_frame_desc[i].offset; buffer_size = urb->iso_frame_desc[i].actual_length; bytes_parsed = 0; if (dma_q->is_partial_line) { /* Handle the case of a partial line */ sav_eav = dma_q->last_sav; } else { /* Check for a SAV/EAV overlapping the buffer boundary */ sav_eav = cx231xx_find_boundary_SAV_EAV(p_buffer, dma_q->partial_buf, &bytes_parsed); } sav_eav &= 0xF0; /* Get the first line if we have some portion of an SAV/EAV from the last buffer or a partial line */ if (sav_eav) { bytes_parsed += cx231xx_get_video_line(dev, dma_q, sav_eav, /* SAV/EAV */ p_buffer + bytes_parsed, /* p_buffer */ buffer_size - bytes_parsed);/* buf size */ } /* Now parse data that is completely in this buffer */ /* dma_q->is_partial_line = 0; */ while (bytes_parsed < buffer_size) { u32 bytes_used = 0; sav_eav = cx231xx_find_next_SAV_EAV( p_buffer + bytes_parsed, /* p_buffer */ buffer_size - bytes_parsed, /* buf size */ &bytes_used);/* bytes used to get SAV/EAV */ bytes_parsed += bytes_used; sav_eav &= 0xF0; if (sav_eav && (bytes_parsed < buffer_size)) { bytes_parsed += cx231xx_get_video_line(dev, dma_q, sav_eav, /* SAV/EAV */ p_buffer + bytes_parsed,/* p_buffer */ buffer_size - bytes_parsed);/*buf size*/ } } /* Save the last four bytes of the buffer so we can check the buffer boundary condition next time */ memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); bytes_parsed = 0; } return 1; } static inline int cx231xx_bulk_copy(struct cx231xx *dev, struct urb *urb) { struct cx231xx_dmaqueue *dma_q = urb->context; unsigned char *p_buffer; u32 bytes_parsed = 0, buffer_size = 0; u8 sav_eav = 0; if (!dev) return 0; if (dev->state & DEV_DISCONNECTED) return 0; if (urb->status < 0) { print_err_status(dev, -1, urb->status); if (urb->status == -ENOENT) return 0; } if (1) { /* get buffer pointer and length */ p_buffer = urb->transfer_buffer; buffer_size = urb->actual_length; bytes_parsed = 0; if (dma_q->is_partial_line) { /* Handle the case of a partial line */ sav_eav = dma_q->last_sav; } else { /* Check for a SAV/EAV overlapping the buffer boundary */ sav_eav = cx231xx_find_boundary_SAV_EAV(p_buffer, dma_q->partial_buf, &bytes_parsed); } sav_eav &= 0xF0; /* Get the first line if we have some portion of an SAV/EAV from the last buffer or a partial line */ if (sav_eav) { bytes_parsed += cx231xx_get_video_line(dev, dma_q, sav_eav, /* SAV/EAV */ p_buffer + bytes_parsed, /* p_buffer */ buffer_size - bytes_parsed);/* buf size */ } /* Now parse data that is completely in this buffer */ /* dma_q->is_partial_line = 0; */ while (bytes_parsed < buffer_size) { u32 bytes_used = 0; sav_eav = cx231xx_find_next_SAV_EAV( p_buffer + bytes_parsed, /* p_buffer */ buffer_size - bytes_parsed, /* buf size */ &bytes_used);/* bytes used to get SAV/EAV */ bytes_parsed += bytes_used; sav_eav &= 0xF0; if (sav_eav && (bytes_parsed < buffer_size)) { bytes_parsed += cx231xx_get_video_line(dev, dma_q, sav_eav, /* SAV/EAV */ p_buffer + bytes_parsed,/* p_buffer */ buffer_size - bytes_parsed);/*buf size*/ } } /* Save the last four bytes of the buffer so we can check the buffer boundary condition next time */ memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4); bytes_parsed = 0; } return 1; } u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf, u32 *p_bytes_used) { u32 bytes_used; u8 boundary_bytes[8]; u8 sav_eav = 0; *p_bytes_used = 0; /* Create an array of the last 4 bytes of the last buffer and the first 4 bytes of the current buffer. */ memcpy(boundary_bytes, partial_buf, 4); memcpy(boundary_bytes + 4, p_buffer, 4); /* Check for the SAV/EAV in the boundary buffer */ sav_eav = cx231xx_find_next_SAV_EAV((u8 *)&boundary_bytes, 8, &bytes_used); if (sav_eav) { /* found a boundary SAV/EAV. Updates the bytes used to reflect only those used in the new buffer */ *p_bytes_used = bytes_used - 4; } return sav_eav; } u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size, u32 *p_bytes_used) { u32 i; u8 sav_eav = 0; /* * Don't search if the buffer size is less than 4. It causes a page * fault since buffer_size - 4 evaluates to a large number in that * case. */ if (buffer_size < 4) { *p_bytes_used = buffer_size; return 0; } for (i = 0; i < (buffer_size - 3); i++) { if ((p_buffer[i] == 0xFF) && (p_buffer[i + 1] == 0x00) && (p_buffer[i + 2] == 0x00)) { *p_bytes_used = i + 4; sav_eav = p_buffer[i + 3]; return sav_eav; } } *p_bytes_used = buffer_size; return 0; } u32 cx231xx_get_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, u8 sav_eav, u8 *p_buffer, u32 buffer_size) { u32 bytes_copied = 0; int current_field = -1; switch (sav_eav) { case SAV_ACTIVE_VIDEO_FIELD1: /* looking for skipped line which occurred in PAL 720x480 mode. In this case, there will be no active data contained between the SAV and EAV */ if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || (p_buffer[3] == EAV_VBLANK_FIELD1) || (p_buffer[3] == EAV_VBLANK_FIELD2))) return bytes_copied; current_field = 1; break; case SAV_ACTIVE_VIDEO_FIELD2: /* looking for skipped line which occurred in PAL 720x480 mode. In this case, there will be no active data contained between the SAV and EAV */ if ((buffer_size > 3) && (p_buffer[0] == 0xFF) && (p_buffer[1] == 0x00) && (p_buffer[2] == 0x00) && ((p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD1) || (p_buffer[3] == EAV_ACTIVE_VIDEO_FIELD2) || (p_buffer[3] == EAV_VBLANK_FIELD1) || (p_buffer[3] == EAV_VBLANK_FIELD2))) return bytes_copied; current_field = 2; break; } dma_q->last_sav = sav_eav; bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer, buffer_size, current_field); return bytes_copied; } u32 cx231xx_copy_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, u8 *p_line, u32 length, int field_number) { u32 bytes_to_copy; struct cx231xx_buffer *buf; u32 _line_size = dev->width * 2; if (dma_q->current_field != field_number) cx231xx_reset_video_buffer(dev, dma_q); /* get the buffer pointer */ if (dev->USE_ISO) buf = dev->video_mode.isoc_ctl.buf; else buf = dev->video_mode.bulk_ctl.buf; /* Remember the field number for next time */ dma_q->current_field = field_number; bytes_to_copy = dma_q->bytes_left_in_line; if (bytes_to_copy > length) bytes_to_copy = length; if (dma_q->lines_completed >= dma_q->lines_per_field) { dma_q->bytes_left_in_line -= bytes_to_copy; dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1; return 0; } dma_q->is_partial_line = 1; /* If we don't have a buffer, just return the number of bytes we would have copied if we had a buffer. */ if (!buf) { dma_q->bytes_left_in_line -= bytes_to_copy; dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ? 0 : 1; return bytes_to_copy; } /* copy the data to video buffer */ cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy); dma_q->pos += bytes_to_copy; dma_q->bytes_left_in_line -= bytes_to_copy; if (dma_q->bytes_left_in_line == 0) { dma_q->bytes_left_in_line = _line_size; dma_q->lines_completed++; dma_q->is_partial_line = 0; if (cx231xx_is_buffer_done(dev, dma_q) && buf) { buffer_filled(dev, dma_q, buf); dma_q->pos = 0; buf = NULL; dma_q->lines_completed = 0; } } return bytes_to_copy; } void cx231xx_reset_video_buffer(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q) { struct cx231xx_buffer *buf; /* handle the switch from field 1 to field 2 */ if (dma_q->current_field == 1) { if (dma_q->lines_completed >= dma_q->lines_per_field) dma_q->field1_done = 1; else dma_q->field1_done = 0; } if (dev->USE_ISO) buf = dev->video_mode.isoc_ctl.buf; else buf = dev->video_mode.bulk_ctl.buf; if (buf == NULL) { /* first try to get the buffer */ get_next_buf(dma_q, &buf); dma_q->pos = 0; dma_q->field1_done = 0; dma_q->current_field = -1; } /* reset the counters */ dma_q->bytes_left_in_line = dev->width << 1; dma_q->lines_completed = 0; } int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, u8 *p_buffer, u32 bytes_to_copy) { u8 *p_out_buffer = NULL; u32 current_line_bytes_copied = 0; struct cx231xx_buffer *buf; u32 _line_size = dev->width << 1; void *startwrite; int offset, lencopy; if (dev->USE_ISO) buf = dev->video_mode.isoc_ctl.buf; else buf = dev->video_mode.bulk_ctl.buf; if (buf == NULL) return -1; p_out_buffer = videobuf_to_vmalloc(&buf->vb); current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line; /* Offset field 2 one line from the top of the buffer */ offset = (dma_q->current_field == 1) ? 0 : _line_size; /* Offset for field 2 */ startwrite = p_out_buffer + offset; /* lines already completed in the current field */ startwrite += (dma_q->lines_completed * _line_size * 2); /* bytes already completed in the current line */ startwrite += current_line_bytes_copied; lencopy = dma_q->bytes_left_in_line > bytes_to_copy ? bytes_to_copy : dma_q->bytes_left_in_line; if ((u8 *)(startwrite + lencopy) > (u8 *)(p_out_buffer + buf->vb.size)) return 0; /* The below copies the UYVY data straight into video buffer */ cx231xx_swab((u16 *) p_buffer, (u16 *) startwrite, (u16) lencopy); return 0; } void cx231xx_swab(u16 *from, u16 *to, u16 len) { u16 i; if (len <= 0) return; for (i = 0; i < len / 2; i++) to[i] = (from[i] << 8) | (from[i] >> 8); } u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q) { u8 buffer_complete = 0; /* Dual field stream */ buffer_complete = ((dma_q->current_field == 2) && (dma_q->lines_completed >= dma_q->lines_per_field) && dma_q->field1_done); return buffer_complete; } /* ------------------------------------------------------------------ Videobuf operations ------------------------------------------------------------------*/ static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) { struct cx231xx_fh *fh = vq->priv_data; struct cx231xx *dev = fh->dev; *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)>>3; if (0 == *count) *count = CX231XX_DEF_BUF; if (*count < CX231XX_MIN_BUF) *count = CX231XX_MIN_BUF; cx231xx_enable_analog_tuner(dev); return 0; } /* This is called *without* dev->slock held; please keep it that way */ static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf) { struct cx231xx_fh *fh = vq->priv_data; struct cx231xx *dev = fh->dev; unsigned long flags = 0; BUG_ON(in_interrupt()); /* We used to wait for the buffer to finish here, but this didn't work because, as we were keeping the state as VIDEOBUF_QUEUED, videobuf_queue_cancel marked it as finished for us. (Also, it could wedge forever if the hardware was misconfigured.) This should be safe; by the time we get here, the buffer isn't queued anymore. If we ever start marking the buffers as VIDEOBUF_ACTIVE, it won't be, though. */ spin_lock_irqsave(&dev->video_mode.slock, flags); if (dev->USE_ISO) { if (dev->video_mode.isoc_ctl.buf == buf) dev->video_mode.isoc_ctl.buf = NULL; } else { if (dev->video_mode.bulk_ctl.buf == buf) dev->video_mode.bulk_ctl.buf = NULL; } spin_unlock_irqrestore(&dev->video_mode.slock, flags); videobuf_vmalloc_free(&buf->vb); buf->vb.state = VIDEOBUF_NEEDS_INIT; } static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, enum v4l2_field field) { struct cx231xx_fh *fh = vq->priv_data; struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb); struct cx231xx *dev = fh->dev; int rc = 0, urb_init = 0; /* The only currently supported format is 16 bits/pixel */ buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) >> 3; if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) return -EINVAL; buf->vb.width = dev->width; buf->vb.height = dev->height; buf->vb.field = field; if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { rc = videobuf_iolock(vq, &buf->vb, NULL); if (rc < 0) goto fail; } if (dev->USE_ISO) { if (!dev->video_mode.isoc_ctl.num_bufs) urb_init = 1; } else { if (!dev->video_mode.bulk_ctl.num_bufs) urb_init = 1; } dev_dbg(dev->dev, "urb_init=%d dev->video_mode.max_pkt_size=%d\n", urb_init, dev->video_mode.max_pkt_size); if (urb_init) { dev->mode_tv = 0; if (dev->USE_ISO) rc = cx231xx_init_isoc(dev, CX231XX_NUM_PACKETS, CX231XX_NUM_BUFS, dev->video_mode.max_pkt_size, cx231xx_isoc_copy); else rc = cx231xx_init_bulk(dev, CX231XX_NUM_PACKETS, CX231XX_NUM_BUFS, dev->video_mode.max_pkt_size, cx231xx_bulk_copy); if (rc < 0) goto fail; } buf->vb.state = VIDEOBUF_PREPARED; return 0; fail: free_buffer(vq, buf); return rc; } static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb); struct cx231xx_fh *fh = vq->priv_data; struct cx231xx *dev = fh->dev; struct cx231xx_dmaqueue *vidq = &dev->video_mode.vidq; buf->vb.state = VIDEOBUF_QUEUED; list_add_tail(&buf->vb.queue, &vidq->active); } static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb) { struct cx231xx_buffer *buf = container_of(vb, struct cx231xx_buffer, vb); struct cx231xx_fh *fh = vq->priv_data; struct cx231xx *dev = (struct cx231xx *)fh->dev; cx231xx_isocdbg("cx231xx: called buffer_release\n"); free_buffer(vq, buf); } static const struct videobuf_queue_ops cx231xx_video_qops = { .buf_setup = buffer_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .buf_release = buffer_release, }; /********************* v4l2 interface **************************************/ void video_mux(struct cx231xx *dev, int index) { dev->video_input = index; dev->ctl_ainput = INPUT(index)->amux; cx231xx_set_video_input_mux(dev, index); cx25840_call(dev, video, s_routing, INPUT(index)->vmux, 0, 0); cx231xx_set_audio_input(dev, dev->ctl_ainput); dev_dbg(dev->dev, "video_mux : %d\n", index); /* do mode control overrides if required */ cx231xx_do_mode_ctrl_overrides(dev); } /* Usage lock check functions */ static int res_get(struct cx231xx_fh *fh) { struct cx231xx *dev = fh->dev; int rc = 0; /* This instance already has stream_on */ if (fh->stream_on) return rc; if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { if (dev->stream_on) return -EBUSY; dev->stream_on = 1; } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { if (dev->vbi_stream_on) return -EBUSY; dev->vbi_stream_on = 1; } else return -EINVAL; fh->stream_on = 1; return rc; } static int res_check(struct cx231xx_fh *fh) { return fh->stream_on; } static void res_free(struct cx231xx_fh *fh) { struct cx231xx *dev = fh->dev; fh->stream_on = 0; if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) dev->stream_on = 0; if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) dev->vbi_stream_on = 0; } static int check_dev(struct cx231xx *dev) { if (dev->state & DEV_DISCONNECTED) { dev_err(dev->dev, "v4l2 ioctl: device not present\n"); return -ENODEV; } return 0; } /* ------------------------------------------------------------------ IOCTL vidioc handling ------------------------------------------------------------------*/ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; f->fmt.pix.width = dev->width; f->fmt.pix.height = dev->height; f->fmt.pix.pixelformat = dev->format->fourcc; f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; f->fmt.pix.field = V4L2_FIELD_INTERLACED; return 0; } static struct cx231xx_fmt *format_by_fourcc(unsigned int fourcc) { unsigned int i; for (i = 0; i < ARRAY_SIZE(format); i++) if (format[i].fourcc == fourcc) return &format[i]; return NULL; } static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; unsigned int width = f->fmt.pix.width; unsigned int height = f->fmt.pix.height; unsigned int maxw = norm_maxw(dev); unsigned int maxh = norm_maxh(dev); struct cx231xx_fmt *fmt; fmt = format_by_fourcc(f->fmt.pix.pixelformat); if (!fmt) { cx231xx_videodbg("Fourcc format (%08x) invalid.\n", f->fmt.pix.pixelformat); return -EINVAL; } /* width must even because of the YUYV format height must be even because of interlacing */ v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 1, 0); f->fmt.pix.width = width; f->fmt.pix.height = height; f->fmt.pix.pixelformat = fmt->fourcc; f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; f->fmt.pix.field = V4L2_FIELD_INTERLACED; return 0; } static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; struct cx231xx_fmt *fmt; struct v4l2_subdev_format format = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, }; rc = check_dev(dev); if (rc < 0) return rc; vidioc_try_fmt_vid_cap(file, priv, f); fmt = format_by_fourcc(f->fmt.pix.pixelformat); if (!fmt) return -EINVAL; if (videobuf_queue_is_busy(&fh->vb_vidq)) { dev_err(dev->dev, "%s: queue busy\n", __func__); return -EBUSY; } if (dev->stream_on && !fh->stream_on) { dev_err(dev->dev, "%s: device in use by another fh\n", __func__); return -EBUSY; } /* set new image size */ dev->width = f->fmt.pix.width; dev->height = f->fmt.pix.height; dev->format = fmt; v4l2_fill_mbus_format(&format.format, &f->fmt.pix, MEDIA_BUS_FMT_FIXED); call_all(dev, pad, set_fmt, NULL, &format); v4l2_fill_pix_format(&f->fmt.pix, &format.format); return rc; } static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; *id = dev->norm; return 0; } static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; struct v4l2_subdev_format format = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, }; int rc; rc = check_dev(dev); if (rc < 0) return rc; if (dev->norm == norm) return 0; if (videobuf_queue_is_busy(&fh->vb_vidq)) return -EBUSY; dev->norm = norm; /* Adjusts width/height, if needed */ dev->width = 720; dev->height = (dev->norm & V4L2_STD_625_50) ? 576 : 480; call_all(dev, video, s_std, dev->norm); /* We need to reset basic properties in the decoder related to resolution (since a standard change effects things like the number of lines in VACT, etc) */ format.format.code = MEDIA_BUS_FMT_FIXED; format.format.width = dev->width; format.format.height = dev->height; call_all(dev, pad, set_fmt, NULL, &format); /* do mode control overrides */ cx231xx_do_mode_ctrl_overrides(dev); return 0; } static const char *iname[] = { [CX231XX_VMUX_COMPOSITE1] = "Composite1", [CX231XX_VMUX_SVIDEO] = "S-Video", [CX231XX_VMUX_TELEVISION] = "Television", [CX231XX_VMUX_CABLE] = "Cable TV", [CX231XX_VMUX_DVB] = "DVB", }; void cx231xx_v4l2_create_entities(struct cx231xx *dev) { #if defined(CONFIG_MEDIA_CONTROLLER) int ret, i; /* Create entities for each input connector */ for (i = 0; i < MAX_CX231XX_INPUT; i++) { struct media_entity *ent = &dev->input_ent[i]; if (!INPUT(i)->type) break; ent->name = iname[INPUT(i)->type]; ent->flags = MEDIA_ENT_FL_CONNECTOR; dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; switch (INPUT(i)->type) { case CX231XX_VMUX_COMPOSITE1: ent->function = MEDIA_ENT_F_CONN_COMPOSITE; break; case CX231XX_VMUX_SVIDEO: ent->function = MEDIA_ENT_F_CONN_SVIDEO; break; case CX231XX_VMUX_TELEVISION: case CX231XX_VMUX_CABLE: case CX231XX_VMUX_DVB: /* The DVB core will handle it */ if (dev->tuner_type == TUNER_ABSENT) continue; /* fall through */ default: /* just to shut up a gcc warning */ ent->function = MEDIA_ENT_F_CONN_RF; break; } ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); if (ret < 0) pr_err("failed to initialize input pad[%d]!\n", i); ret = media_device_register_entity(dev->media_dev, ent); if (ret < 0) pr_err("failed to register input entity %d!\n", i); } #endif } int cx231xx_enum_input(struct file *file, void *priv, struct v4l2_input *i) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; u32 gen_stat; unsigned int n; int ret; n = i->index; if (n >= MAX_CX231XX_INPUT) return -EINVAL; if (0 == INPUT(n)->type) return -EINVAL; i->index = n; i->type = V4L2_INPUT_TYPE_CAMERA; strscpy(i->name, iname[INPUT(n)->type], sizeof(i->name)); if ((CX231XX_VMUX_TELEVISION == INPUT(n)->type) || (CX231XX_VMUX_CABLE == INPUT(n)->type)) i->type = V4L2_INPUT_TYPE_TUNER; i->std = dev->vdev.tvnorms; /* If they are asking about the active input, read signal status */ if (n == dev->video_input) { ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, GEN_STAT, 2, &gen_stat, 4); if (ret > 0) { if ((gen_stat & FLD_VPRES) == 0x00) i->status |= V4L2_IN_ST_NO_SIGNAL; if ((gen_stat & FLD_HLOCK) == 0x00) i->status |= V4L2_IN_ST_NO_H_LOCK; } } return 0; } int cx231xx_g_input(struct file *file, void *priv, unsigned int *i) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; *i = dev->video_input; return 0; } int cx231xx_s_input(struct file *file, void *priv, unsigned int i) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; dev->mode_tv = 0; rc = check_dev(dev); if (rc < 0) return rc; if (i >= MAX_CX231XX_INPUT) return -EINVAL; if (0 == INPUT(i)->type) return -EINVAL; video_mux(dev, i); if (INPUT(i)->type == CX231XX_VMUX_TELEVISION || INPUT(i)->type == CX231XX_VMUX_CABLE) { /* There's a tuner, so reset the standard and put it on the last known frequency (since it was probably powered down until now */ call_all(dev, video, s_std, dev->norm); } return 0; } int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; if (0 != t->index) return -EINVAL; strscpy(t->name, "Tuner", sizeof(t->name)); t->type = V4L2_TUNER_ANALOG_TV; t->capability = V4L2_TUNER_CAP_NORM; t->rangehigh = 0xffffffffUL; t->signal = 0xffff; /* LOCKED */ call_all(dev, tuner, g_tuner, t); return 0; } int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; if (0 != t->index) return -EINVAL; #if 0 call_all(dev, tuner, s_tuner, t); #endif return 0; } int cx231xx_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; if (f->tuner) return -EINVAL; f->frequency = dev->ctl_freq; return 0; } int cx231xx_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; struct v4l2_frequency new_freq = *f; int rc; u32 if_frequency = 5400000; dev_dbg(dev->dev, "Enter vidioc_s_frequency()f->frequency=%d;f->type=%d\n", f->frequency, f->type); rc = check_dev(dev); if (rc < 0) return rc; if (0 != f->tuner) return -EINVAL; /* set pre channel change settings in DIF first */ rc = cx231xx_tuner_pre_channel_change(dev); call_all(dev, tuner, s_frequency, f); call_all(dev, tuner, g_frequency, &new_freq); dev->ctl_freq = new_freq.frequency; /* set post channel change settings in DIF first */ rc = cx231xx_tuner_post_channel_change(dev); if (dev->tuner_type == TUNER_NXP_TDA18271) { if (dev->norm & (V4L2_STD_MN | V4L2_STD_NTSC_443)) if_frequency = 5400000; /*5.4MHz */ else if (dev->norm & V4L2_STD_B) if_frequency = 6000000; /*6.0MHz */ else if (dev->norm & (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK)) if_frequency = 6900000; /*6.9MHz */ else if (dev->norm & V4L2_STD_GH) if_frequency = 7100000; /*7.1MHz */ else if (dev->norm & V4L2_STD_PAL_I) if_frequency = 7250000; /*7.25MHz */ else if (dev->norm & V4L2_STD_SECAM_L) if_frequency = 6900000; /*6.9MHz */ else if (dev->norm & V4L2_STD_SECAM_LC) if_frequency = 1250000; /*1.25MHz */ dev_dbg(dev->dev, "if_frequency is set to %d\n", if_frequency); cx231xx_set_Colibri_For_LowIF(dev, if_frequency, 1, 1); update_HH_register_after_set_DIF(dev); } dev_dbg(dev->dev, "Set New FREQUENCY to %d\n", f->frequency); return rc; } #ifdef CONFIG_VIDEO_ADV_DEBUG int cx231xx_g_chip_info(struct file *file, void *fh, struct v4l2_dbg_chip_info *chip) { switch (chip->match.addr) { case 0: /* Cx231xx - internal registers */ return 0; case 1: /* AFE - read byte */ strscpy(chip->name, "AFE (byte)", sizeof(chip->name)); return 0; case 2: /* Video Block - read byte */ strscpy(chip->name, "Video (byte)", sizeof(chip->name)); return 0; case 3: /* I2S block - read byte */ strscpy(chip->name, "I2S (byte)", sizeof(chip->name)); return 0; case 4: /* AFE - read dword */ strscpy(chip->name, "AFE (dword)", sizeof(chip->name)); return 0; case 5: /* Video Block - read dword */ strscpy(chip->name, "Video (dword)", sizeof(chip->name)); return 0; case 6: /* I2S Block - read dword */ strscpy(chip->name, "I2S (dword)", sizeof(chip->name)); return 0; } return -EINVAL; } int cx231xx_g_register(struct file *file, void *priv, struct v4l2_dbg_register *reg) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int ret; u8 value[4] = { 0, 0, 0, 0 }; u32 data = 0; switch (reg->match.addr) { case 0: /* Cx231xx - internal registers */ ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, (u16)reg->reg, value, 4); reg->val = value[0] | value[1] << 8 | value[2] << 16 | (u32)value[3] << 24; reg->size = 4; break; case 1: /* AFE - read byte */ ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, (u16)reg->reg, 2, &data, 1); reg->val = data; reg->size = 1; break; case 2: /* Video Block - read byte */ ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, (u16)reg->reg, 2, &data, 1); reg->val = data; reg->size = 1; break; case 3: /* I2S block - read byte */ ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, (u16)reg->reg, 1, &data, 1); reg->val = data; reg->size = 1; break; case 4: /* AFE - read dword */ ret = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS, (u16)reg->reg, 2, &data, 4); reg->val = data; reg->size = 4; break; case 5: /* Video Block - read dword */ ret = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS, (u16)reg->reg, 2, &data, 4); reg->val = data; reg->size = 4; break; case 6: /* I2S Block - read dword */ ret = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, (u16)reg->reg, 1, &data, 4); reg->val = data; reg->size = 4; break; default: return -EINVAL; } return ret < 0 ? ret : 0; } int cx231xx_s_register(struct file *file, void *priv, const struct v4l2_dbg_register *reg) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int ret; u8 data[4] = { 0, 0, 0, 0 }; switch (reg->match.addr) { case 0: /* cx231xx internal registers */ data[0] = (u8) reg->val; data[1] = (u8) (reg->val >> 8); data[2] = (u8) (reg->val >> 16); data[3] = (u8) (reg->val >> 24); ret = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, (u16)reg->reg, data, 4); break; case 1: /* AFE - write byte */ ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, (u16)reg->reg, 2, reg->val, 1); break; case 2: /* Video Block - write byte */ ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, (u16)reg->reg, 2, reg->val, 1); break; case 3: /* I2S block - write byte */ ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, (u16)reg->reg, 1, reg->val, 1); break; case 4: /* AFE - write dword */ ret = cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS, (u16)reg->reg, 2, reg->val, 4); break; case 5: /* Video Block - write dword */ ret = cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS, (u16)reg->reg, 2, reg->val, 4); break; case 6: /* I2S block - write dword */ ret = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS, (u16)reg->reg, 1, reg->val, 4); break; default: return -EINVAL; } return ret < 0 ? ret : 0; } #endif static int vidioc_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; bool is_50hz = dev->norm & V4L2_STD_625_50; if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; f->numerator = is_50hz ? 54 : 11; f->denominator = is_50hz ? 59 : 10; return 0; } static int vidioc_g_selection(struct file *file, void *priv, struct v4l2_selection *s) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; switch (s->target) { case V4L2_SEL_TGT_CROP_BOUNDS: case V4L2_SEL_TGT_CROP_DEFAULT: s->r.left = 0; s->r.top = 0; s->r.width = dev->width; s->r.height = dev->height; break; default: return -EINVAL; } return 0; } static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; rc = res_get(fh); if (likely(rc >= 0)) rc = videobuf_streamon(&fh->vb_vidq); call_all(dev, video, s_stream, 1); return rc; } static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; if (type != fh->type) return -EINVAL; cx25840_call(dev, video, s_stream, 0); videobuf_streamoff(&fh->vb_vidq); res_free(fh); return 0; } int cx231xx_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; strscpy(cap->driver, "cx231xx", sizeof(cap->driver)); strscpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; if (video_is_registered(&dev->radio_dev)) cap->capabilities |= V4L2_CAP_RADIO; if (dev->tuner_type != TUNER_ABSENT) cap->capabilities |= V4L2_CAP_TUNER; return 0; } static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { if (unlikely(f->index >= ARRAY_SIZE(format))) return -EINVAL; f->pixelformat = format[f->index].fourcc; return 0; } /* RAW VBI ioctls */ static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; f->fmt.vbi.sampling_rate = 6750000 * 4; f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; f->fmt.vbi.offset = 0; f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_START_LINE : NTSC_VBI_START_LINE; f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_LINES : NTSC_VBI_LINES; f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); return 0; } static int vidioc_try_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; f->fmt.vbi.sampling_rate = 6750000 * 4; f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; f->fmt.vbi.offset = 0; f->fmt.vbi.flags = 0; f->fmt.vbi.start[0] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_START_LINE : NTSC_VBI_START_LINE; f->fmt.vbi.count[0] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_LINES : NTSC_VBI_LINES; f->fmt.vbi.start[1] = (dev->norm & V4L2_STD_625_50) ? PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263; f->fmt.vbi.count[1] = f->fmt.vbi.count[0]; memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved)); return 0; } static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *f) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; if (dev->vbi_stream_on && !fh->stream_on) { dev_err(dev->dev, "%s device in use by another fh\n", __func__); return -EBUSY; } return vidioc_try_fmt_vbi_cap(file, priv, f); } static int vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *rb) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; return videobuf_reqbufs(&fh->vb_vidq, rb); } static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; return videobuf_querybuf(&fh->vb_vidq, b); } static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; return videobuf_qbuf(&fh->vb_vidq, b); } static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) { struct cx231xx_fh *fh = priv; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); } /* ----------------------------------------------------------- */ /* RADIO ESPECIFIC IOCTLS */ /* ----------------------------------------------------------- */ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; if (t->index) return -EINVAL; strscpy(t->name, "Radio", sizeof(t->name)); call_all(dev, tuner, g_tuner, t); return 0; } static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) { struct cx231xx *dev = ((struct cx231xx_fh *)priv)->dev; if (t->index) return -EINVAL; call_all(dev, tuner, s_tuner, t); return 0; } /* * cx231xx_v4l2_open() * inits the device and starts isoc transfer */ static int cx231xx_v4l2_open(struct file *filp) { int radio = 0; struct video_device *vdev = video_devdata(filp); struct cx231xx *dev = video_drvdata(filp); struct cx231xx_fh *fh; enum v4l2_buf_type fh_type = 0; switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; break; case VFL_TYPE_VBI: fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; break; case VFL_TYPE_RADIO: radio = 1; break; default: return -EINVAL; } cx231xx_videodbg("open dev=%s type=%s users=%d\n", video_device_node_name(vdev), v4l2_type_names[fh_type], dev->users); #if 0 errCode = cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); if (errCode < 0) { dev_err(dev->dev, "Device locked on digital mode. Can't open analog\n"); return -EBUSY; } #endif fh = kzalloc(sizeof(struct cx231xx_fh), GFP_KERNEL); if (!fh) return -ENOMEM; if (mutex_lock_interruptible(&dev->lock)) { kfree(fh); return -ERESTARTSYS; } fh->dev = dev; fh->type = fh_type; filp->private_data = fh; v4l2_fh_init(&fh->fh, vdev); if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { /* Power up in Analog TV mode */ if (dev->board.external_av) cx231xx_set_power_mode(dev, POLARIS_AVMODE_ENXTERNAL_AV); else cx231xx_set_power_mode(dev, POLARIS_AVMODE_ANALOGT_TV); #if 0 cx231xx_set_mode(dev, CX231XX_ANALOG_MODE); #endif /* set video alternate setting */ cx231xx_set_video_alternate(dev); /* Needed, since GPIO might have disabled power of some i2c device */ cx231xx_config_i2c(dev); /* device needs to be initialized before isoc transfer */ dev->video_input = dev->video_input > 2 ? 2 : dev->video_input; } if (radio) { cx231xx_videodbg("video_open: setting radio device\n"); /* cx231xx_start_radio(dev); */ call_all(dev, tuner, s_radio); } dev->users++; if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_video_qops, NULL, &dev->video_mode.slock, fh->type, V4L2_FIELD_INTERLACED, sizeof(struct cx231xx_buffer), fh, &dev->lock); if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { /* Set the required alternate setting VBI interface works in Bulk mode only */ cx231xx_set_alt_setting(dev, INDEX_VANC, 0); videobuf_queue_vmalloc_init(&fh->vb_vidq, &cx231xx_vbi_qops, NULL, &dev->vbi_mode.slock, fh->type, V4L2_FIELD_SEQ_TB, sizeof(struct cx231xx_buffer), fh, &dev->lock); } mutex_unlock(&dev->lock); v4l2_fh_add(&fh->fh); return 0; } /* * cx231xx_realease_resources() * unregisters the v4l2,i2c and usb devices * called when the device gets disconnected or at module unload */ void cx231xx_release_analog_resources(struct cx231xx *dev) { /*FIXME: I2C IR should be disconnected */ if (video_is_registered(&dev->radio_dev)) video_unregister_device(&dev->radio_dev); if (video_is_registered(&dev->vbi_dev)) { dev_info(dev->dev, "V4L2 device %s deregistered\n", video_device_node_name(&dev->vbi_dev)); video_unregister_device(&dev->vbi_dev); } if (video_is_registered(&dev->vdev)) { dev_info(dev->dev, "V4L2 device %s deregistered\n", video_device_node_name(&dev->vdev)); if (dev->board.has_417) cx231xx_417_unregister(dev); video_unregister_device(&dev->vdev); } v4l2_ctrl_handler_free(&dev->ctrl_handler); v4l2_ctrl_handler_free(&dev->radio_ctrl_handler); } /* * cx231xx_close() * stops streaming and deallocates all resources allocated by the v4l2 * calls and ioctls */ static int cx231xx_close(struct file *filp) { struct cx231xx_fh *fh = filp->private_data; struct cx231xx *dev = fh->dev; cx231xx_videodbg("users=%d\n", dev->users); cx231xx_videodbg("users=%d\n", dev->users); if (res_check(fh)) res_free(fh); /* * To workaround error number=-71 on EP0 for VideoGrabber, * need exclude following. * FIXME: It is probably safe to remove most of these, as we're * now avoiding the alternate setting for INDEX_VANC */ if (!dev->board.no_alt_vanc) if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { videobuf_stop(&fh->vb_vidq); videobuf_mmap_free(&fh->vb_vidq); /* the device is already disconnect, free the remaining resources */ if (dev->state & DEV_DISCONNECTED) { if (atomic_read(&dev->devlist_count) > 0) { cx231xx_release_resources(dev); fh->dev = NULL; return 0; } return 0; } /* do this before setting alternate! */ cx231xx_uninit_vbi_isoc(dev); /* set alternate 0 */ if (!dev->vbi_or_sliced_cc_mode) cx231xx_set_alt_setting(dev, INDEX_VANC, 0); else cx231xx_set_alt_setting(dev, INDEX_HANC, 0); v4l2_fh_del(&fh->fh); v4l2_fh_exit(&fh->fh); kfree(fh); dev->users--; wake_up_interruptible(&dev->open); return 0; } v4l2_fh_del(&fh->fh); dev->users--; if (!dev->users) { videobuf_stop(&fh->vb_vidq); videobuf_mmap_free(&fh->vb_vidq); /* the device is already disconnect, free the remaining resources */ if (dev->state & DEV_DISCONNECTED) { cx231xx_release_resources(dev); fh->dev = NULL; return 0; } /* Save some power by putting tuner to sleep */ call_all(dev, tuner, standby); /* do this before setting alternate! */ if (dev->USE_ISO) cx231xx_uninit_isoc(dev); else cx231xx_uninit_bulk(dev); cx231xx_set_mode(dev, CX231XX_SUSPEND); /* set alternate 0 */ cx231xx_set_alt_setting(dev, INDEX_VIDEO, 0); } v4l2_fh_exit(&fh->fh); kfree(fh); wake_up_interruptible(&dev->open); return 0; } static int cx231xx_v4l2_close(struct file *filp) { struct cx231xx_fh *fh = filp->private_data; struct cx231xx *dev = fh->dev; int rc; mutex_lock(&dev->lock); rc = cx231xx_close(filp); mutex_unlock(&dev->lock); return rc; } /* * cx231xx_v4l2_read() * will allocate buffers when called for the first time */ static ssize_t cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count, loff_t *pos) { struct cx231xx_fh *fh = filp->private_data; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; if ((fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) || (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)) { rc = res_get(fh); if (unlikely(rc < 0)) return rc; if (mutex_lock_interruptible(&dev->lock)) return -ERESTARTSYS; rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, filp->f_flags & O_NONBLOCK); mutex_unlock(&dev->lock); return rc; } return 0; } /* * cx231xx_v4l2_poll() * will allocate buffers when called for the first time */ static __poll_t cx231xx_v4l2_poll(struct file *filp, poll_table *wait) { __poll_t req_events = poll_requested_events(wait); struct cx231xx_fh *fh = filp->private_data; struct cx231xx *dev = fh->dev; __poll_t res = 0; int rc; rc = check_dev(dev); if (rc < 0) return EPOLLERR; rc = res_get(fh); if (unlikely(rc < 0)) return EPOLLERR; if (v4l2_event_pending(&fh->fh)) res |= EPOLLPRI; else poll_wait(filp, &fh->fh.wait, wait); if (!(req_events & (EPOLLIN | EPOLLRDNORM))) return res; if ((V4L2_BUF_TYPE_VIDEO_CAPTURE == fh->type) || (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)) { mutex_lock(&dev->lock); res |= videobuf_poll_stream(filp, &fh->vb_vidq, wait); mutex_unlock(&dev->lock); return res; } return res | EPOLLERR; } /* * cx231xx_v4l2_mmap() */ static int cx231xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) { struct cx231xx_fh *fh = filp->private_data; struct cx231xx *dev = fh->dev; int rc; rc = check_dev(dev); if (rc < 0) return rc; rc = res_get(fh); if (unlikely(rc < 0)) return rc; if (mutex_lock_interruptible(&dev->lock)) return -ERESTARTSYS; rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); mutex_unlock(&dev->lock); cx231xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", (unsigned long)vma->vm_start, (unsigned long)vma->vm_end - (unsigned long)vma->vm_start, rc); return rc; } static const struct v4l2_file_operations cx231xx_v4l_fops = { .owner = THIS_MODULE, .open = cx231xx_v4l2_open, .release = cx231xx_v4l2_close, .read = cx231xx_v4l2_read, .poll = cx231xx_v4l2_poll, .mmap = cx231xx_v4l2_mmap, .unlocked_ioctl = video_ioctl2, }; static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_querycap = cx231xx_querycap, .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, .vidioc_try_fmt_vbi_cap = vidioc_try_fmt_vbi_cap, .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, .vidioc_g_pixelaspect = vidioc_g_pixelaspect, .vidioc_g_selection = vidioc_g_selection, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, .vidioc_dqbuf = vidioc_dqbuf, .vidioc_s_std = vidioc_s_std, .vidioc_g_std = vidioc_g_std, .vidioc_enum_input = cx231xx_enum_input, .vidioc_g_input = cx231xx_g_input, .vidioc_s_input = cx231xx_s_input, .vidioc_streamon = vidioc_streamon, .vidioc_streamoff = vidioc_streamoff, .vidioc_g_tuner = cx231xx_g_tuner, .vidioc_s_tuner = cx231xx_s_tuner, .vidioc_g_frequency = cx231xx_g_frequency, .vidioc_s_frequency = cx231xx_s_frequency, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_chip_info = cx231xx_g_chip_info, .vidioc_g_register = cx231xx_g_register, .vidioc_s_register = cx231xx_s_register, #endif .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; static struct video_device cx231xx_vbi_template; static const struct video_device cx231xx_video_template = { .fops = &cx231xx_v4l_fops, .release = video_device_release_empty, .ioctl_ops = &video_ioctl_ops, .tvnorms = V4L2_STD_ALL, }; static const struct v4l2_file_operations radio_fops = { .owner = THIS_MODULE, .open = cx231xx_v4l2_open, .release = cx231xx_v4l2_close, .poll = v4l2_ctrl_poll, .unlocked_ioctl = video_ioctl2, }; static const struct v4l2_ioctl_ops radio_ioctl_ops = { .vidioc_querycap = cx231xx_querycap, .vidioc_g_tuner = radio_g_tuner, .vidioc_s_tuner = radio_s_tuner, .vidioc_g_frequency = cx231xx_g_frequency, .vidioc_s_frequency = cx231xx_s_frequency, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_chip_info = cx231xx_g_chip_info, .vidioc_g_register = cx231xx_g_register, .vidioc_s_register = cx231xx_s_register, #endif .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; static struct video_device cx231xx_radio_template = { .name = "cx231xx-radio", .fops = &radio_fops, .ioctl_ops = &radio_ioctl_ops, }; /******************************** usb interface ******************************/ static void cx231xx_vdev_init(struct cx231xx *dev, struct video_device *vfd, const struct video_device *template, const char *type_name) { *vfd = *template; vfd->v4l2_dev = &dev->v4l2_dev; vfd->release = video_device_release_empty; vfd->lock = &dev->lock; snprintf(vfd->name, sizeof(vfd->name), "%s %s", dev->name, type_name); video_set_drvdata(vfd, dev); if (dev->tuner_type == TUNER_ABSENT) { v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY); v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY); v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER); v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER); } } int cx231xx_register_analog_devices(struct cx231xx *dev) { int ret; dev_info(dev->dev, "v4l2 driver version %s\n", CX231XX_VERSION); /* set default norm */ dev->norm = V4L2_STD_PAL; dev->width = norm_maxw(dev); dev->height = norm_maxh(dev); dev->interlaced = 0; /* Analog specific initialization */ dev->format = &format[0]; /* Set the initial input */ video_mux(dev, dev->video_input); call_all(dev, video, s_std, dev->norm); v4l2_ctrl_handler_init(&dev->ctrl_handler, 10); v4l2_ctrl_handler_init(&dev->radio_ctrl_handler, 5); if (dev->sd_cx25840) { v4l2_ctrl_add_handler(&dev->ctrl_handler, dev->sd_cx25840->ctrl_handler, NULL, true); v4l2_ctrl_add_handler(&dev->radio_ctrl_handler, dev->sd_cx25840->ctrl_handler, v4l2_ctrl_radio_filter, true); } if (dev->ctrl_handler.error) return dev->ctrl_handler.error; if (dev->radio_ctrl_handler.error) return dev->radio_ctrl_handler.error; /* enable vbi capturing */ /* write code here... */ /* allocate and fill video video_device struct */ cx231xx_vdev_init(dev, &dev->vdev, &cx231xx_video_template, "video"); #if defined(CONFIG_MEDIA_CONTROLLER) dev->video_pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); if (ret < 0) dev_err(dev->dev, "failed to initialize video media entity!\n"); #endif dev->vdev.ctrl_handler = &dev->ctrl_handler; dev->vdev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE; if (dev->tuner_type != TUNER_ABSENT) dev->vdev.device_caps |= V4L2_CAP_TUNER; /* register v4l2 video video_device */ ret = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr[dev->devno]); if (ret) { dev_err(dev->dev, "unable to register video device (error=%i).\n", ret); return ret; } dev_info(dev->dev, "Registered video device %s [v4l2]\n", video_device_node_name(&dev->vdev)); /* Initialize VBI template */ cx231xx_vbi_template = cx231xx_video_template; strscpy(cx231xx_vbi_template.name, "cx231xx-vbi", sizeof(cx231xx_vbi_template.name)); /* Allocate and fill vbi video_device struct */ cx231xx_vdev_init(dev, &dev->vbi_dev, &cx231xx_vbi_template, "vbi"); #if defined(CONFIG_MEDIA_CONTROLLER) dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); if (ret < 0) dev_err(dev->dev, "failed to initialize vbi media entity!\n"); #endif dev->vbi_dev.ctrl_handler = &dev->ctrl_handler; dev->vbi_dev.device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_VBI_CAPTURE; if (dev->tuner_type != TUNER_ABSENT) dev->vbi_dev.device_caps |= V4L2_CAP_TUNER; /* register v4l2 vbi video_device */ ret = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, vbi_nr[dev->devno]); if (ret < 0) { dev_err(dev->dev, "unable to register vbi device\n"); return ret; } dev_info(dev->dev, "Registered VBI device %s\n", video_device_node_name(&dev->vbi_dev)); if (cx231xx_boards[dev->model].radio.type == CX231XX_RADIO) { cx231xx_vdev_init(dev, &dev->radio_dev, &cx231xx_radio_template, "radio"); dev->radio_dev.ctrl_handler = &dev->radio_ctrl_handler; dev->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER; ret = video_register_device(&dev->radio_dev, VFL_TYPE_RADIO, radio_nr[dev->devno]); if (ret < 0) { dev_err(dev->dev, "can't register radio device\n"); return ret; } dev_info(dev->dev, "Registered radio device as %s\n", video_device_node_name(&dev->radio_dev)); } return 0; }
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