| /* |
| 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 |
| |
| 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, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #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[] = { |
| { |
| .name = "16bpp YUY2, 4:2:2, packed", |
| .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++; |
| v4l2_get_timestamp(&buf->vb.ts); |
| |
| 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; |
| |
| strcpy(i->name, iname[INPUT(n)->type]); |
| |
| 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; |
| |
| strcpy(t->name, "Tuner"); |
| |
| 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 */ |
| strlcpy(chip->name, "AFE (byte)", sizeof(chip->name)); |
| return 0; |
| case 2: /* Video Block - read byte */ |
| strlcpy(chip->name, "Video (byte)", sizeof(chip->name)); |
| return 0; |
| case 3: /* I2S block - read byte */ |
| strlcpy(chip->name, "I2S (byte)", sizeof(chip->name)); |
| return 0; |
| case 4: /* AFE - read dword */ |
| strlcpy(chip->name, "AFE (dword)", sizeof(chip->name)); |
| return 0; |
| case 5: /* Video Block - read dword */ |
| strlcpy(chip->name, "Video (dword)", sizeof(chip->name)); |
| return 0; |
| case 6: /* I2S Block - read dword */ |
| strlcpy(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 | 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_cropcap(struct file *file, void *priv, |
| struct v4l2_cropcap *cc) |
| { |
| struct cx231xx_fh *fh = priv; |
| struct cx231xx *dev = fh->dev; |
| bool is_50hz = dev->norm & V4L2_STD_625_50; |
| |
| if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| |
| cc->bounds.left = 0; |
| cc->bounds.top = 0; |
| cc->bounds.width = dev->width; |
| cc->bounds.height = dev->height; |
| cc->defrect = cc->bounds; |
| cc->pixelaspect.numerator = is_50hz ? 54 : 11; |
| cc->pixelaspect.denominator = is_50hz ? 59 : 10; |
| |
| 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 video_device *vdev = video_devdata(file); |
| struct cx231xx_fh *fh = priv; |
| struct cx231xx *dev = fh->dev; |
| |
| strlcpy(cap->driver, "cx231xx", sizeof(cap->driver)); |
| strlcpy(cap->card, cx231xx_boards[dev->model].name, sizeof(cap->card)); |
| usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
| |
| if (vdev->vfl_type == VFL_TYPE_RADIO) |
| cap->device_caps = V4L2_CAP_RADIO; |
| else { |
| cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; |
| if (vdev->vfl_type == VFL_TYPE_VBI) |
| cap->device_caps |= V4L2_CAP_VBI_CAPTURE; |
| else |
| cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; |
| } |
| if (dev->tuner_type != TUNER_ABSENT) |
| cap->device_caps |= V4L2_CAP_TUNER; |
| cap->capabilities = cap->device_caps | 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; |
| |
| 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; |
| |
| strlcpy(f->description, format[f->index].name, sizeof(f->description)); |
| 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; |
| |
| strcpy(t->name, "Radio"); |
| |
| 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 disconected 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, core, s_power, 0); |
| |
| /* 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 unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait) |
| { |
| unsigned long req_events = poll_requested_events(wait); |
| struct cx231xx_fh *fh = filp->private_data; |
| struct cx231xx *dev = fh->dev; |
| unsigned res = 0; |
| int rc; |
| |
| rc = check_dev(dev); |
| if (rc < 0) |
| return POLLERR; |
| |
| rc = res_get(fh); |
| |
| if (unlikely(rc < 0)) |
| return POLLERR; |
| |
| if (v4l2_event_pending(&fh->fh)) |
| res |= POLLPRI; |
| else |
| poll_wait(filp, &fh->fh.wait, wait); |
| |
| if (!(req_events & (POLLIN | POLLRDNORM))) |
| 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 | POLLERR; |
| } |
| |
| /* |
| * 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_cropcap = vidioc_cropcap, |
| .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); |
| v4l2_ctrl_add_handler(&dev->radio_ctrl_handler, |
| dev->sd_cx25840->ctrl_handler, |
| v4l2_ctrl_radio_filter); |
| } |
| |
| 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; |
| /* 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; |
| strcpy(cx231xx_vbi_template.name, "cx231xx-vbi"); |
| |
| /* 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; |
| /* 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; |
| 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; |
| } |