| /* |
| * Driver for the Conexant CX25821 PCIe bridge |
| * |
| * Copyright (C) 2009 Conexant Systems Inc. |
| * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> |
| * Based on Steven Toth <stoth@linuxtv.org> cx23885 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 "cx25821-video.h" |
| |
| MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards"); |
| MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>"); |
| MODULE_LICENSE("GPL"); |
| |
| static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET }; |
| static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET }; |
| |
| module_param_array(video_nr, int, NULL, 0444); |
| module_param_array(radio_nr, int, NULL, 0444); |
| |
| MODULE_PARM_DESC(video_nr, "video device numbers"); |
| MODULE_PARM_DESC(radio_nr, "radio device numbers"); |
| |
| static unsigned int video_debug = VIDEO_DEBUG; |
| module_param(video_debug, int, 0644); |
| MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); |
| |
| static unsigned int irq_debug; |
| module_param(irq_debug, int, 0644); |
| MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]"); |
| |
| unsigned int vid_limit = 16; |
| module_param(vid_limit, int, 0644); |
| MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); |
| |
| static void init_controls(struct cx25821_dev *dev, int chan_num); |
| |
| #define FORMAT_FLAGS_PACKED 0x01 |
| |
| struct cx25821_fmt formats[] = { |
| { |
| .name = "8 bpp, gray", |
| .fourcc = V4L2_PIX_FMT_GREY, |
| .depth = 8, |
| .flags = FORMAT_FLAGS_PACKED, |
| }, { |
| .name = "4:1:1, packed, Y41P", |
| .fourcc = V4L2_PIX_FMT_Y41P, |
| .depth = 12, |
| .flags = FORMAT_FLAGS_PACKED, |
| }, { |
| .name = "4:2:2, packed, YUYV", |
| .fourcc = V4L2_PIX_FMT_YUYV, |
| .depth = 16, |
| .flags = FORMAT_FLAGS_PACKED, |
| }, { |
| .name = "4:2:2, packed, UYVY", |
| .fourcc = V4L2_PIX_FMT_UYVY, |
| .depth = 16, |
| .flags = FORMAT_FLAGS_PACKED, |
| }, { |
| .name = "4:2:0, YUV", |
| .fourcc = V4L2_PIX_FMT_YUV420, |
| .depth = 12, |
| .flags = FORMAT_FLAGS_PACKED, |
| }, |
| }; |
| |
| int cx25821_get_format_size(void) |
| { |
| return ARRAY_SIZE(formats); |
| } |
| |
| struct cx25821_fmt *format_by_fourcc(unsigned int fourcc) |
| { |
| unsigned int i; |
| |
| if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) { |
| return formats + 1; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(formats); i++) |
| if (formats[i].fourcc == fourcc) |
| return formats + i; |
| |
| printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc); |
| return NULL; |
| } |
| |
| void cx25821_dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q) |
| { |
| struct cx25821_buffer *buf; |
| struct list_head *item; |
| dprintk(1, "%s()\n", __func__); |
| |
| if (!list_empty(&q->active)) { |
| list_for_each(item, &q->active) |
| buf = list_entry(item, struct cx25821_buffer, vb.queue); |
| } |
| |
| if (!list_empty(&q->queued)) { |
| list_for_each(item, &q->queued) |
| buf = list_entry(item, struct cx25821_buffer, vb.queue); |
| } |
| |
| } |
| |
| void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q, |
| u32 count) |
| { |
| struct cx25821_buffer *buf; |
| int bc; |
| |
| for (bc = 0;; bc++) { |
| if (list_empty(&q->active)) { |
| dprintk(1, "bc=%d (=0: active empty)\n", bc); |
| break; |
| } |
| |
| buf = |
| list_entry(q->active.next, struct cx25821_buffer, vb.queue); |
| |
| /* count comes from the hw and it is 16bit wide -- |
| * this trick handles wrap-arounds correctly for |
| * up to 32767 buffers in flight... */ |
| if ((s16) (count - buf->count) < 0) { |
| break; |
| } |
| |
| do_gettimeofday(&buf->vb.ts); |
| buf->vb.state = VIDEOBUF_DONE; |
| list_del(&buf->vb.queue); |
| wake_up(&buf->vb.done); |
| } |
| |
| if (list_empty(&q->active)) |
| del_timer(&q->timeout); |
| else |
| mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); |
| if (bc != 1) |
| printk(KERN_ERR "%s: %d buffers handled (should be 1)\n", |
| __func__, bc); |
| } |
| |
| #ifdef TUNER_FLAG |
| int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm) |
| { |
| dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", __func__, |
| (unsigned int)norm, v4l2_norm_to_name(norm)); |
| |
| dev->tvnorm = norm; |
| |
| /* Tell the internal A/V decoder */ |
| cx25821_call_all(dev, core, s_std, norm); |
| |
| return 0; |
| } |
| #endif |
| |
| struct video_device *cx25821_vdev_init(struct cx25821_dev *dev, |
| struct pci_dev *pci, |
| struct video_device *template, |
| char *type) |
| { |
| struct video_device *vfd; |
| dprintk(1, "%s()\n", __func__); |
| |
| vfd = video_device_alloc(); |
| if (NULL == vfd) |
| return NULL; |
| *vfd = *template; |
| vfd->v4l2_dev = &dev->v4l2_dev; |
| vfd->release = video_device_release; |
| snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type, |
| cx25821_boards[dev->board].name); |
| video_set_drvdata(vfd, dev); |
| return vfd; |
| } |
| |
| /* |
| static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl) |
| { |
| int i; |
| |
| if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1) |
| return -EINVAL; |
| for (i = 0; i < CX25821_CTLS; i++) |
| if (cx25821_ctls[i].v.id == qctrl->id) |
| break; |
| if (i == CX25821_CTLS) { |
| *qctrl = no_ctl; |
| return 0; |
| } |
| *qctrl = cx25821_ctls[i].v; |
| return 0; |
| } |
| */ |
| |
| // resource management |
| int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit) |
| { |
| dprintk(1, "%s()\n", __func__); |
| if (fh->resources & bit) |
| /* have it already allocated */ |
| return 1; |
| |
| /* is it free? */ |
| mutex_lock(&dev->lock); |
| if (dev->resources & bit) { |
| /* no, someone else uses it */ |
| mutex_unlock(&dev->lock); |
| return 0; |
| } |
| /* it's free, grab it */ |
| fh->resources |= bit; |
| dev->resources |= bit; |
| dprintk(1, "res: get %d\n", bit); |
| mutex_unlock(&dev->lock); |
| return 1; |
| } |
| |
| int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit) |
| { |
| return fh->resources & bit; |
| } |
| |
| int cx25821_res_locked(struct cx25821_dev *dev, unsigned int bit) |
| { |
| return dev->resources & bit; |
| } |
| |
| void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits) |
| { |
| BUG_ON((fh->resources & bits) != bits); |
| dprintk(1, "%s()\n", __func__); |
| |
| mutex_lock(&dev->lock); |
| fh->resources &= ~bits; |
| dev->resources &= ~bits; |
| dprintk(1, "res: put %d\n", bits); |
| mutex_unlock(&dev->lock); |
| } |
| |
| int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input) |
| { |
| struct v4l2_routing route; |
| memset(&route, 0, sizeof(route)); |
| |
| dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n", |
| __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0, |
| INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3); |
| dev->input = input; |
| |
| route.input = INPUT(input)->vmux; |
| |
| /* Tell the internal A/V decoder */ |
| cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0); |
| |
| return 0; |
| } |
| |
| int cx25821_start_video_dma(struct cx25821_dev *dev, |
| struct cx25821_dmaqueue *q, |
| struct cx25821_buffer *buf, |
| struct sram_channel *channel) |
| { |
| int tmp = 0; |
| |
| /* setup fifo + format */ |
| cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma); |
| |
| /* reset counter */ |
| cx_write(channel->gpcnt_ctl, 3); |
| q->count = 1; |
| |
| /* enable irq */ |
| cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i)); |
| cx_set(channel->int_msk, 0x11); |
| |
| /* start dma */ |
| cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */ |
| |
| /* make sure upstream setting if any is reversed */ |
| tmp = cx_read(VID_CH_MODE_SEL); |
| cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00); |
| |
| return 0; |
| } |
| |
| int cx25821_restart_video_queue(struct cx25821_dev *dev, |
| struct cx25821_dmaqueue *q, |
| struct sram_channel *channel) |
| { |
| struct cx25821_buffer *buf, *prev; |
| struct list_head *item; |
| |
| if (!list_empty(&q->active)) { |
| buf = |
| list_entry(q->active.next, struct cx25821_buffer, vb.queue); |
| |
| cx25821_start_video_dma(dev, q, buf, channel); |
| |
| list_for_each(item, &q->active) { |
| buf = list_entry(item, struct cx25821_buffer, vb.queue); |
| buf->count = q->count++; |
| } |
| |
| mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); |
| return 0; |
| } |
| |
| prev = NULL; |
| for (;;) { |
| if (list_empty(&q->queued)) |
| return 0; |
| |
| buf = |
| list_entry(q->queued.next, struct cx25821_buffer, vb.queue); |
| |
| if (NULL == prev) { |
| list_move_tail(&buf->vb.queue, &q->active); |
| cx25821_start_video_dma(dev, q, buf, channel); |
| buf->vb.state = VIDEOBUF_ACTIVE; |
| buf->count = q->count++; |
| mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); |
| } else if (prev->vb.width == buf->vb.width && |
| prev->vb.height == buf->vb.height && |
| prev->fmt == buf->fmt) { |
| list_move_tail(&buf->vb.queue, &q->active); |
| buf->vb.state = VIDEOBUF_ACTIVE; |
| buf->count = q->count++; |
| prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); |
| prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */ |
| } else { |
| return 0; |
| } |
| prev = buf; |
| } |
| } |
| |
| void cx25821_vid_timeout(unsigned long data) |
| { |
| struct cx25821_data *timeout_data = (struct cx25821_data *)data; |
| struct cx25821_dev *dev = timeout_data->dev; |
| struct sram_channel *channel = timeout_data->channel; |
| struct cx25821_dmaqueue *q = &dev->vidq[channel->i]; |
| struct cx25821_buffer *buf; |
| unsigned long flags; |
| |
| //cx25821_sram_channel_dump(dev, channel); |
| cx_clear(channel->dma_ctl, 0x11); |
| |
| spin_lock_irqsave(&dev->slock, flags); |
| while (!list_empty(&q->active)) { |
| buf = |
| list_entry(q->active.next, struct cx25821_buffer, vb.queue); |
| list_del(&buf->vb.queue); |
| |
| buf->vb.state = VIDEOBUF_ERROR; |
| wake_up(&buf->vb.done); |
| } |
| |
| cx25821_restart_video_queue(dev, q, channel); |
| spin_unlock_irqrestore(&dev->slock, flags); |
| } |
| |
| int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status) |
| { |
| u32 count = 0; |
| int handled = 0; |
| u32 mask; |
| struct sram_channel *channel = &dev->sram_channels[chan_num]; |
| |
| mask = cx_read(channel->int_msk); |
| if (0 == (status & mask)) |
| return handled; |
| |
| cx_write(channel->int_stat, status); |
| |
| /* risc op code error */ |
| if (status & (1 << 16)) { |
| printk(KERN_WARNING "%s, %s: video risc op code error\n", |
| dev->name, channel->name); |
| cx_clear(channel->dma_ctl, 0x11); |
| cx25821_sram_channel_dump(dev, channel); |
| } |
| |
| /* risc1 y */ |
| if (status & FLD_VID_DST_RISC1) { |
| spin_lock(&dev->slock); |
| count = cx_read(channel->gpcnt); |
| cx25821_video_wakeup(dev, &dev->vidq[channel->i], count); |
| spin_unlock(&dev->slock); |
| handled++; |
| } |
| |
| /* risc2 y */ |
| if (status & 0x10) { |
| dprintk(2, "stopper video\n"); |
| spin_lock(&dev->slock); |
| cx25821_restart_video_queue(dev, &dev->vidq[channel->i], |
| channel); |
| spin_unlock(&dev->slock); |
| handled++; |
| } |
| return handled; |
| } |
| |
| void cx25821_videoioctl_unregister(struct cx25821_dev *dev) |
| { |
| if (dev->ioctl_dev) { |
| if (video_is_registered(dev->ioctl_dev)) |
| video_unregister_device(dev->ioctl_dev); |
| else |
| video_device_release(dev->ioctl_dev); |
| |
| dev->ioctl_dev = NULL; |
| } |
| } |
| |
| void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num) |
| { |
| cx_clear(PCI_INT_MSK, 1); |
| |
| if (dev->video_dev[chan_num]) { |
| if (video_is_registered(dev->video_dev[chan_num])) |
| video_unregister_device(dev->video_dev[chan_num]); |
| else |
| video_device_release(dev->video_dev[chan_num]); |
| |
| dev->video_dev[chan_num] = NULL; |
| |
| btcx_riscmem_free(dev->pci, &dev->vidq[chan_num].stopper); |
| |
| printk(KERN_WARNING "device %d released!\n", chan_num); |
| } |
| |
| } |
| |
| int cx25821_video_register(struct cx25821_dev *dev, int chan_num, |
| struct video_device *video_template) |
| { |
| int err; |
| |
| spin_lock_init(&dev->slock); |
| |
| //printk(KERN_WARNING "Channel %d\n", chan_num); |
| |
| #ifdef TUNER_FLAG |
| dev->tvnorm = video_template->current_norm; |
| #endif |
| |
| /* init video dma queues */ |
| dev->timeout_data[chan_num].dev = dev; |
| dev->timeout_data[chan_num].channel = &dev->sram_channels[chan_num]; |
| INIT_LIST_HEAD(&dev->vidq[chan_num].active); |
| INIT_LIST_HEAD(&dev->vidq[chan_num].queued); |
| dev->vidq[chan_num].timeout.function = cx25821_vid_timeout; |
| dev->vidq[chan_num].timeout.data = |
| (unsigned long)&dev->timeout_data[chan_num]; |
| init_timer(&dev->vidq[chan_num].timeout); |
| cx25821_risc_stopper(dev->pci, &dev->vidq[chan_num].stopper, |
| dev->sram_channels[chan_num].dma_ctl, 0x11, 0); |
| |
| /* register v4l devices */ |
| dev->video_dev[chan_num] = |
| cx25821_vdev_init(dev, dev->pci, video_template, "video"); |
| err = |
| video_register_device(dev->video_dev[chan_num], VFL_TYPE_GRABBER, |
| video_nr[dev->nr]); |
| |
| if (err < 0) { |
| goto fail_unreg; |
| } |
| //set PCI interrupt |
| cx_set(PCI_INT_MSK, 0xff); |
| |
| /* initial device configuration */ |
| mutex_lock(&dev->lock); |
| #ifdef TUNER_FLAG |
| cx25821_set_tvnorm(dev, dev->tvnorm); |
| #endif |
| mutex_unlock(&dev->lock); |
| |
| init_controls(dev, chan_num); |
| |
| return 0; |
| |
| fail_unreg: |
| cx25821_video_unregister(dev, chan_num); |
| return err; |
| } |
| |
| int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count, |
| unsigned int *size) |
| { |
| struct cx25821_fh *fh = q->priv_data; |
| |
| *size = fh->fmt->depth * fh->width * fh->height >> 3; |
| |
| if (0 == *count) |
| *count = 32; |
| |
| if (*size * *count > vid_limit * 1024 * 1024) |
| *count = (vid_limit * 1024 * 1024) / *size; |
| |
| return 0; |
| } |
| |
| int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, |
| enum v4l2_field field) |
| { |
| struct cx25821_fh *fh = q->priv_data; |
| struct cx25821_dev *dev = fh->dev; |
| struct cx25821_buffer *buf = |
| container_of(vb, struct cx25821_buffer, vb); |
| int rc, init_buffer = 0; |
| u32 line0_offset, line1_offset; |
| struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); |
| int bpl_local = LINE_SIZE_D1; |
| int channel_opened = 0; |
| |
| BUG_ON(NULL == fh->fmt); |
| if (fh->width < 48 || fh->width > 720 || |
| fh->height < 32 || fh->height > 576) |
| return -EINVAL; |
| |
| buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3; |
| |
| if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) |
| return -EINVAL; |
| |
| if (buf->fmt != fh->fmt || |
| buf->vb.width != fh->width || |
| buf->vb.height != fh->height || buf->vb.field != field) { |
| buf->fmt = fh->fmt; |
| buf->vb.width = fh->width; |
| buf->vb.height = fh->height; |
| buf->vb.field = field; |
| init_buffer = 1; |
| } |
| |
| if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
| init_buffer = 1; |
| rc = videobuf_iolock(q, &buf->vb, NULL); |
| if (0 != rc) { |
| printk(KERN_DEBUG "videobuf_iolock failed!\n"); |
| goto fail; |
| } |
| } |
| |
| dprintk(1, "init_buffer=%d\n", init_buffer); |
| |
| if (init_buffer) { |
| |
| channel_opened = dev->channel_opened; |
| channel_opened = (channel_opened < 0 |
| || channel_opened > 7) ? 7 : channel_opened; |
| |
| if (dev->pixel_formats[channel_opened] == PIXEL_FRMT_411) |
| buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3; |
| else |
| buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width); |
| |
| if (dev->pixel_formats[channel_opened] == PIXEL_FRMT_411) { |
| bpl_local = buf->bpl; |
| } else { |
| bpl_local = buf->bpl; //Default |
| |
| if (channel_opened >= 0 && channel_opened <= 7) { |
| if (dev->use_cif_resolution[channel_opened]) { |
| if (dev->tvnorm & V4L2_STD_PAL_BG |
| || dev->tvnorm & V4L2_STD_PAL_DK) |
| bpl_local = 352 << 1; |
| else |
| bpl_local = |
| dev-> |
| cif_width[channel_opened] << |
| 1; |
| } |
| } |
| } |
| |
| switch (buf->vb.field) { |
| case V4L2_FIELD_TOP: |
| cx25821_risc_buffer(dev->pci, &buf->risc, |
| dma->sglist, 0, UNSET, |
| buf->bpl, 0, buf->vb.height); |
| break; |
| case V4L2_FIELD_BOTTOM: |
| cx25821_risc_buffer(dev->pci, &buf->risc, |
| dma->sglist, UNSET, 0, |
| buf->bpl, 0, buf->vb.height); |
| break; |
| case V4L2_FIELD_INTERLACED: |
| /* All other formats are top field first */ |
| line0_offset = 0; |
| line1_offset = buf->bpl; |
| dprintk(1, "top field first\n"); |
| |
| cx25821_risc_buffer(dev->pci, &buf->risc, |
| dma->sglist, line0_offset, |
| bpl_local, bpl_local, bpl_local, |
| buf->vb.height >> 1); |
| break; |
| case V4L2_FIELD_SEQ_TB: |
| cx25821_risc_buffer(dev->pci, &buf->risc, |
| dma->sglist, |
| 0, buf->bpl * (buf->vb.height >> 1), |
| buf->bpl, 0, buf->vb.height >> 1); |
| break; |
| case V4L2_FIELD_SEQ_BT: |
| cx25821_risc_buffer(dev->pci, &buf->risc, |
| dma->sglist, |
| buf->bpl * (buf->vb.height >> 1), 0, |
| buf->bpl, 0, buf->vb.height >> 1); |
| break; |
| default: |
| BUG(); |
| } |
| } |
| |
| dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n", |
| buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth, |
| fh->fmt->name, (unsigned long)buf->risc.dma); |
| |
| buf->vb.state = VIDEOBUF_PREPARED; |
| |
| return 0; |
| |
| fail: |
| cx25821_free_buffer(q, buf); |
| return rc; |
| } |
| |
| void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) |
| { |
| struct cx25821_buffer *buf = |
| container_of(vb, struct cx25821_buffer, vb); |
| |
| cx25821_free_buffer(q, buf); |
| } |
| |
| struct videobuf_queue *get_queue(struct cx25821_fh *fh) |
| { |
| switch (fh->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| return &fh->vidq; |
| default: |
| BUG(); |
| return NULL; |
| } |
| } |
| |
| int cx25821_get_resource(struct cx25821_fh *fh, int resource) |
| { |
| switch (fh->type) { |
| case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| return resource; |
| default: |
| BUG(); |
| return 0; |
| } |
| } |
| |
| int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| struct cx25821_fh *fh = file->private_data; |
| |
| return videobuf_mmap_mapper(get_queue(fh), vma); |
| } |
| |
| /* VIDEO IOCTLS */ |
| int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) |
| { |
| struct cx25821_fh *fh = priv; |
| |
| f->fmt.pix.width = fh->width; |
| f->fmt.pix.height = fh->height; |
| f->fmt.pix.field = fh->vidq.field; |
| f->fmt.pix.pixelformat = fh->fmt->fourcc; |
| f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3; |
| f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| |
| return 0; |
| } |
| |
| int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) |
| { |
| struct cx25821_fmt *fmt; |
| enum v4l2_field field; |
| unsigned int maxw, maxh; |
| |
| fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| if (NULL == fmt) |
| return -EINVAL; |
| |
| field = f->fmt.pix.field; |
| maxw = 720; |
| maxh = 576; |
| |
| if (V4L2_FIELD_ANY == field) { |
| field = (f->fmt.pix.height > maxh / 2) |
| ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; |
| } |
| |
| switch (field) { |
| case V4L2_FIELD_TOP: |
| case V4L2_FIELD_BOTTOM: |
| maxh = maxh / 2; |
| break; |
| case V4L2_FIELD_INTERLACED: |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| f->fmt.pix.field = field; |
| if (f->fmt.pix.height < 32) |
| f->fmt.pix.height = 32; |
| if (f->fmt.pix.height > maxh) |
| f->fmt.pix.height = maxh; |
| if (f->fmt.pix.width < 48) |
| f->fmt.pix.width = 48; |
| if (f->fmt.pix.width > maxw) |
| f->fmt.pix.width = maxw; |
| f->fmt.pix.width &= ~0x03; |
| f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; |
| f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| |
| return 0; |
| } |
| |
| int cx25821_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| |
| strcpy(cap->driver, "cx25821"); |
| strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card)); |
| sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci)); |
| cap->version = CX25821_VERSION_CODE; |
| cap->capabilities = |
| V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; |
| if (UNSET != dev->tuner_type) |
| cap->capabilities |= V4L2_CAP_TUNER; |
| return 0; |
| } |
| |
| int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| if (unlikely(f->index >= ARRAY_SIZE(formats))) |
| return -EINVAL; |
| |
| strlcpy(f->description, formats[f->index].name, sizeof(f->description)); |
| f->pixelformat = formats[f->index].fourcc; |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| int cx25821_vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf) |
| { |
| struct cx25821_fh *fh = priv; |
| struct videobuf_queue *q; |
| struct v4l2_requestbuffers req; |
| unsigned int i; |
| int err; |
| |
| q = get_queue(fh); |
| memset(&req, 0, sizeof(req)); |
| req.type = q->type; |
| req.count = 8; |
| req.memory = V4L2_MEMORY_MMAP; |
| err = videobuf_reqbufs(q, &req); |
| if (err < 0) |
| return err; |
| |
| mbuf->frames = req.count; |
| mbuf->size = 0; |
| for (i = 0; i < mbuf->frames; i++) { |
| mbuf->offsets[i] = q->bufs[i]->boff; |
| mbuf->size += q->bufs[i]->bsize; |
| } |
| return 0; |
| } |
| #endif |
| |
| int cx25821_vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p) |
| { |
| struct cx25821_fh *fh = priv; |
| return videobuf_reqbufs(get_queue(fh), p); |
| } |
| |
| int cx25821_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p) |
| { |
| struct cx25821_fh *fh = priv; |
| return videobuf_querybuf(get_queue(fh), p); |
| } |
| |
| int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p) |
| { |
| struct cx25821_fh *fh = priv; |
| return videobuf_qbuf(get_queue(fh), p); |
| } |
| |
| int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev; |
| |
| *p = v4l2_prio_max(&dev->prio); |
| |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio) |
| { |
| struct cx25821_fh *fh = f; |
| struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev; |
| |
| return v4l2_prio_change(&dev->prio, &fh->prio, prio); |
| } |
| |
| #ifdef TUNER_FLAG |
| int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms) |
| { |
| struct cx25821_fh *fh = priv; |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| int err; |
| |
| dprintk(1, "%s()\n", __func__); |
| |
| if (fh) { |
| err = v4l2_prio_check(&dev->prio, fh->prio); |
| if (0 != err) |
| return err; |
| } |
| |
| if (dev->tvnorm == *tvnorms) { |
| return 0; |
| } |
| |
| mutex_lock(&dev->lock); |
| cx25821_set_tvnorm(dev, *tvnorms); |
| mutex_unlock(&dev->lock); |
| |
| medusa_set_videostandard(dev); |
| |
| return 0; |
| } |
| #endif |
| |
| int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i) |
| { |
| static const char *iname[] = { |
| [CX25821_VMUX_COMPOSITE] = "Composite", |
| [CX25821_VMUX_SVIDEO] = "S-Video", |
| [CX25821_VMUX_DEBUG] = "for debug only", |
| }; |
| unsigned int n; |
| dprintk(1, "%s()\n", __func__); |
| |
| n = i->index; |
| if (n >= 2) |
| return -EINVAL; |
| |
| if (0 == INPUT(n)->type) |
| return -EINVAL; |
| |
| memset(i, 0, sizeof(*i)); |
| i->index = n; |
| i->type = V4L2_INPUT_TYPE_CAMERA; |
| strcpy(i->name, iname[INPUT(n)->type]); |
| |
| i->std = CX25821_NORMS; |
| return 0; |
| } |
| |
| int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| dprintk(1, "%s()\n", __func__); |
| return cx25821_enum_input(dev, i); |
| } |
| |
| int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| |
| *i = dev->input; |
| dprintk(1, "%s() returns %d\n", __func__, *i); |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i) |
| { |
| struct cx25821_fh *fh = priv; |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| int err; |
| |
| dprintk(1, "%s(%d)\n", __func__, i); |
| |
| if (fh) { |
| err = v4l2_prio_check(&dev->prio, fh->prio); |
| if (0 != err) |
| return err; |
| } |
| |
| if (i > 2) { |
| dprintk(1, "%s() -EINVAL\n", __func__); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&dev->lock); |
| cx25821_video_mux(dev, i); |
| mutex_unlock(&dev->lock); |
| return 0; |
| } |
| |
| #ifdef TUNER_FLAG |
| int cx25821_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) |
| { |
| struct cx25821_fh *fh = priv; |
| struct cx25821_dev *dev = fh->dev; |
| |
| f->frequency = dev->freq; |
| |
| cx25821_call_all(dev, tuner, g_frequency, f); |
| |
| return 0; |
| } |
| |
| int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f) |
| { |
| mutex_lock(&dev->lock); |
| dev->freq = f->frequency; |
| |
| cx25821_call_all(dev, tuner, s_frequency, f); |
| |
| /* When changing channels it is required to reset TVAUDIO */ |
| msleep(10); |
| |
| mutex_unlock(&dev->lock); |
| |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) |
| { |
| struct cx25821_fh *fh = priv; |
| struct cx25821_dev *dev; |
| int err; |
| |
| if (fh) { |
| err = v4l2_prio_check(&dev->prio, fh->prio); |
| if (0 != err) |
| return err; |
| } |
| |
| return cx25821_set_freq(dev, f); |
| } |
| #endif |
| |
| #ifdef CONFIG_VIDEO_ADV_DEBUG |
| int cx25821_vidioc_g_register(struct file *file, void *fh, |
| struct v4l2_dbg_register *reg) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev; |
| |
| if (!v4l2_chip_match_host(®->match)) |
| return -EINVAL; |
| |
| cx25821_call_all(dev, core, g_register, reg); |
| |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_register(struct file *file, void *fh, |
| struct v4l2_dbg_register *reg) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev; |
| |
| if (!v4l2_chip_match_host(®->match)) |
| return -EINVAL; |
| |
| cx25821_call_all(dev, core, s_register, reg); |
| |
| return 0; |
| } |
| |
| #endif |
| |
| #ifdef TUNER_FLAG |
| int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| |
| if (unlikely(UNSET == dev->tuner_type)) |
| return -EINVAL; |
| if (0 != t->index) |
| return -EINVAL; |
| |
| strcpy(t->name, "Television"); |
| t->type = V4L2_TUNER_ANALOG_TV; |
| t->capability = V4L2_TUNER_CAP_NORM; |
| t->rangehigh = 0xffffffffUL; |
| |
| t->signal = 0xffff; /* LOCKED */ |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| struct cx25821_fh *fh = priv; |
| int err; |
| |
| if (fh) { |
| err = v4l2_prio_check(&dev->prio, fh->prio); |
| if (0 != err) |
| return err; |
| } |
| |
| dprintk(1, "%s()\n", __func__); |
| if (UNSET == dev->tuner_type) |
| return -EINVAL; |
| if (0 != t->index) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| #endif |
| // ****************************************************************************************** |
| static const struct v4l2_queryctrl no_ctl = { |
| .name = "42", |
| .flags = V4L2_CTRL_FLAG_DISABLED, |
| }; |
| |
| static struct v4l2_queryctrl cx25821_ctls[] = { |
| /* --- video --- */ |
| { |
| .id = V4L2_CID_BRIGHTNESS, |
| .name = "Brightness", |
| .minimum = 0, |
| .maximum = 10000, |
| .step = 1, |
| .default_value = 6200, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| }, { |
| .id = V4L2_CID_CONTRAST, |
| .name = "Contrast", |
| .minimum = 0, |
| .maximum = 10000, |
| .step = 1, |
| .default_value = 5000, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| }, { |
| .id = V4L2_CID_SATURATION, |
| .name = "Saturation", |
| .minimum = 0, |
| .maximum = 10000, |
| .step = 1, |
| .default_value = 5000, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| }, { |
| .id = V4L2_CID_HUE, |
| .name = "Hue", |
| .minimum = 0, |
| .maximum = 10000, |
| .step = 1, |
| .default_value = 5000, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| } |
| }; |
| static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls); |
| |
| static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl) |
| { |
| int i; |
| |
| if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1) |
| return -EINVAL; |
| for (i = 0; i < CX25821_CTLS; i++) |
| if (cx25821_ctls[i].id == qctrl->id) |
| break; |
| if (i == CX25821_CTLS) { |
| *qctrl = no_ctl; |
| return 0; |
| } |
| *qctrl = cx25821_ctls[i]; |
| return 0; |
| } |
| |
| int cx25821_vidioc_queryctrl(struct file *file, void *priv, |
| struct v4l2_queryctrl *qctrl) |
| { |
| return cx25821_ctrl_query(qctrl); |
| } |
| |
| /* ------------------------------------------------------------------ */ |
| /* VIDEO CTRL IOCTLS */ |
| |
| static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id) |
| { |
| unsigned int i; |
| |
| for (i = 0; i < CX25821_CTLS; i++) |
| if (cx25821_ctls[i].id == id) |
| return cx25821_ctls + i; |
| return NULL; |
| } |
| |
| int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| |
| const struct v4l2_queryctrl *ctrl; |
| |
| ctrl = ctrl_by_id(ctl->id); |
| |
| if (NULL == ctrl) |
| return -EINVAL; |
| switch (ctl->id) { |
| case V4L2_CID_BRIGHTNESS: |
| ctl->value = dev->ctl_bright; |
| break; |
| case V4L2_CID_HUE: |
| ctl->value = dev->ctl_hue; |
| break; |
| case V4L2_CID_CONTRAST: |
| ctl->value = dev->ctl_contrast; |
| break; |
| case V4L2_CID_SATURATION: |
| ctl->value = dev->ctl_saturation; |
| break; |
| } |
| return 0; |
| } |
| |
| int cx25821_set_control(struct cx25821_dev *dev, |
| struct v4l2_control *ctl, int chan_num) |
| { |
| int err; |
| const struct v4l2_queryctrl *ctrl; |
| |
| err = -EINVAL; |
| |
| ctrl = ctrl_by_id(ctl->id); |
| |
| if (NULL == ctrl) |
| return err; |
| |
| switch (ctrl->type) { |
| case V4L2_CTRL_TYPE_BOOLEAN: |
| case V4L2_CTRL_TYPE_MENU: |
| case V4L2_CTRL_TYPE_INTEGER: |
| if (ctl->value < ctrl->minimum) |
| ctl->value = ctrl->minimum; |
| if (ctl->value > ctrl->maximum) |
| ctl->value = ctrl->maximum; |
| break; |
| default: |
| /* nothing */ ; |
| }; |
| |
| switch (ctl->id) { |
| case V4L2_CID_BRIGHTNESS: |
| dev->ctl_bright = ctl->value; |
| medusa_set_brightness(dev, ctl->value, chan_num); |
| break; |
| case V4L2_CID_HUE: |
| dev->ctl_hue = ctl->value; |
| medusa_set_hue(dev, ctl->value, chan_num); |
| break; |
| case V4L2_CID_CONTRAST: |
| dev->ctl_contrast = ctl->value; |
| medusa_set_contrast(dev, ctl->value, chan_num); |
| break; |
| case V4L2_CID_SATURATION: |
| dev->ctl_saturation = ctl->value; |
| medusa_set_saturation(dev, ctl->value, chan_num); |
| break; |
| } |
| |
| err = 0; |
| |
| return err; |
| } |
| |
| static void init_controls(struct cx25821_dev *dev, int chan_num) |
| { |
| struct v4l2_control ctrl; |
| int i; |
| for (i = 0; i < CX25821_CTLS; i++) { |
| ctrl.id = cx25821_ctls[i].id; |
| ctrl.value = cx25821_ctls[i].default_value; |
| |
| cx25821_set_control(dev, &ctrl, chan_num); |
| } |
| } |
| |
| int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| |
| if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| cropcap->bounds.top = cropcap->bounds.left = 0; |
| cropcap->bounds.width = 720; |
| cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480; |
| cropcap->pixelaspect.numerator = |
| dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10; |
| cropcap->pixelaspect.denominator = |
| dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11; |
| cropcap->defrect = cropcap->bounds; |
| return 0; |
| } |
| |
| int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop) |
| { |
| struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev; |
| struct cx25821_fh *fh = priv; |
| int err; |
| |
| if (fh) { |
| err = v4l2_prio_check(&dev->prio, fh->prio); |
| if (0 != err) |
| return err; |
| } |
| // cx25821_vidioc_s_crop not supported |
| return -EINVAL; |
| } |
| |
| int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop) |
| { |
| // cx25821_vidioc_g_crop not supported |
| return -EINVAL; |
| } |
| |
| int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm) |
| { |
| // medusa does not support video standard sensing of current input |
| *norm = CX25821_NORMS; |
| |
| return 0; |
| } |
| |
| int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm) |
| { |
| if (tvnorm == V4L2_STD_PAL_BG) { |
| if (width == 352 || width == 720) |
| return 1; |
| else |
| return 0; |
| } |
| |
| if (tvnorm == V4L2_STD_NTSC_M) { |
| if (width == 320 || width == 352 || width == 720) |
| return 1; |
| else |
| return 0; |
| } |
| return 0; |
| } |
| |
| int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm) |
| { |
| if (tvnorm == V4L2_STD_PAL_BG) { |
| if (height == 576 || height == 288) |
| return 1; |
| else |
| return 0; |
| } |
| |
| if (tvnorm == V4L2_STD_NTSC_M) { |
| if (height == 480 || height == 240) |
| return 1; |
| else |
| return 0; |
| } |
| |
| return 0; |
| } |