diff options
Diffstat (limited to 'drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c')
| -rw-r--r-- | drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c | 1394 |
1 files changed, 1394 insertions, 0 deletions
diff --git a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c new file mode 100644 index 000000000..0adf3d80f --- /dev/null +++ b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c @@ -0,0 +1,1394 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com> + * + * Original author: + * Ben Collins <bcollins@ubuntu.com> + * + * Additional work by: + * John Brooks <john.brooks@bluecherry.net> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/kthread.h> +#include <linux/freezer.h> + +#include <media/v4l2-ioctl.h> +#include <media/v4l2-common.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-dma-sg.h> + +#include "solo6x10.h" +#include "solo6x10-tw28.h" +#include "solo6x10-jpeg.h" + +#define MIN_VID_BUFFERS 2 +#define FRAME_BUF_SIZE (400 * 1024) +#define MP4_QS 16 +#define DMA_ALIGN 4096 + +/* 6010 M4V */ +static u8 vop_6010_ntsc_d1[] = { + 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20, + 0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40, + 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04, + 0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f, +}; + +static u8 vop_6010_ntsc_cif[] = { + 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20, + 0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40, + 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04, + 0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f, +}; + +static u8 vop_6010_pal_d1[] = { + 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20, + 0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40, + 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04, + 0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f, +}; + +static u8 vop_6010_pal_cif[] = { + 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20, + 0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40, + 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04, + 0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f, +}; + +/* 6110 h.264 */ +static u8 vop_6110_ntsc_d1[] = { + 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, + 0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00, + 0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, +}; + +static u8 vop_6110_ntsc_cif[] = { + 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, + 0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00, + 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00, +}; + +static u8 vop_6110_pal_d1[] = { + 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, + 0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00, + 0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, +}; + +static u8 vop_6110_pal_cif[] = { + 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e, + 0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00, + 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00, +}; + +typedef __le32 vop_header[16]; + +struct solo_enc_buf { + enum solo_enc_types type; + const vop_header *vh; + int motion; +}; + +static int solo_is_motion_on(struct solo_enc_dev *solo_enc) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + + return (solo_dev->motion_mask >> solo_enc->ch) & 1; +} + +static int solo_motion_detected(struct solo_enc_dev *solo_enc) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + unsigned long flags; + u32 ch_mask = 1 << solo_enc->ch; + int ret = 0; + + spin_lock_irqsave(&solo_enc->motion_lock, flags); + if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) { + solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask); + ret = 1; + } + spin_unlock_irqrestore(&solo_enc->motion_lock, flags); + + return ret; +} + +static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + u32 mask = 1 << solo_enc->ch; + unsigned long flags; + + spin_lock_irqsave(&solo_enc->motion_lock, flags); + + if (on) + solo_dev->motion_mask |= mask; + else + solo_dev->motion_mask &= ~mask; + + solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask); + + solo_reg_write(solo_dev, SOLO_VI_MOT_ADR, + SOLO_VI_MOTION_EN(solo_dev->motion_mask) | + (SOLO_MOTION_EXT_ADDR(solo_dev) >> 16)); + + spin_unlock_irqrestore(&solo_enc->motion_lock, flags); +} + +void solo_update_mode(struct solo_enc_dev *solo_enc) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + int vop_len; + u8 *vop; + + solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0; + solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1); + + if (solo_enc->mode == SOLO_ENC_MODE_CIF) { + solo_enc->width = solo_dev->video_hsize >> 1; + solo_enc->height = solo_dev->video_vsize; + if (solo_dev->type == SOLO_DEV_6110) { + if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) { + vop = vop_6110_ntsc_cif; + vop_len = sizeof(vop_6110_ntsc_cif); + } else { + vop = vop_6110_pal_cif; + vop_len = sizeof(vop_6110_pal_cif); + } + } else { + if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) { + vop = vop_6010_ntsc_cif; + vop_len = sizeof(vop_6010_ntsc_cif); + } else { + vop = vop_6010_pal_cif; + vop_len = sizeof(vop_6010_pal_cif); + } + } + } else { + solo_enc->width = solo_dev->video_hsize; + solo_enc->height = solo_dev->video_vsize << 1; + solo_enc->bw_weight <<= 2; + if (solo_dev->type == SOLO_DEV_6110) { + if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) { + vop = vop_6110_ntsc_d1; + vop_len = sizeof(vop_6110_ntsc_d1); + } else { + vop = vop_6110_pal_d1; + vop_len = sizeof(vop_6110_pal_d1); + } + } else { + if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) { + vop = vop_6010_ntsc_d1; + vop_len = sizeof(vop_6010_ntsc_d1); + } else { + vop = vop_6010_pal_d1; + vop_len = sizeof(vop_6010_pal_d1); + } + } + } + + memcpy(solo_enc->vop, vop, vop_len); + + /* Some fixups for 6010/M4V */ + if (solo_dev->type == SOLO_DEV_6010) { + u16 fps = solo_dev->fps * 1000; + u16 interval = solo_enc->interval * 1000; + + vop = solo_enc->vop; + + /* Frame rate and interval */ + vop[22] = fps >> 4; + vop[23] = ((fps << 4) & 0xf0) | 0x0c + | ((interval >> 13) & 0x3); + vop[24] = (interval >> 5) & 0xff; + vop[25] = ((interval << 3) & 0xf8) | 0x04; + } + + solo_enc->vop_len = vop_len; + + /* Now handle the jpeg header */ + vop = solo_enc->jpeg_header; + vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8); + vop[SOF0_START + 6] = 0xff & solo_enc->height; + vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8); + vop[SOF0_START + 8] = 0xff & solo_enc->width; + + memcpy(vop + DQT_START, + jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN); +} + +static int solo_enc_on(struct solo_enc_dev *solo_enc) +{ + u8 ch = solo_enc->ch; + struct solo_dev *solo_dev = solo_enc->solo_dev; + u8 interval; + + solo_update_mode(solo_enc); + + /* Make sure to do a bandwidth check */ + if (solo_enc->bw_weight > solo_dev->enc_bw_remain) + return -EBUSY; + solo_enc->sequence = 0; + solo_dev->enc_bw_remain -= solo_enc->bw_weight; + + if (solo_enc->type == SOLO_ENC_TYPE_EXT) + solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1); + + /* Disable all encoding for this channel */ + solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0); + + /* Common for both std and ext encoding */ + solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch), + solo_enc->interlaced ? 1 : 0); + + if (solo_enc->interlaced) + interval = solo_enc->interval - 1; + else + interval = solo_enc->interval; + + /* Standard encoding only */ + solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop); + solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp); + solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval); + + /* Extended encoding only */ + solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop); + solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp); + solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval); + + /* Enables the standard encoder */ + solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode); + + return 0; +} + +static void solo_enc_off(struct solo_enc_dev *solo_enc) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + + solo_dev->enc_bw_remain += solo_enc->bw_weight; + + solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0); + solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0); +} + +static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma, + unsigned int off, unsigned int size) +{ + int ret; + + if (off > SOLO_MP4E_EXT_SIZE(solo_dev)) + return -EINVAL; + + /* Single shot */ + if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) { + return solo_p2m_dma_t(solo_dev, 0, dma, + SOLO_MP4E_EXT_ADDR(solo_dev) + off, size, + 0, 0); + } + + /* Buffer wrap */ + ret = solo_p2m_dma_t(solo_dev, 0, dma, + SOLO_MP4E_EXT_ADDR(solo_dev) + off, + SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0); + + if (!ret) { + ret = solo_p2m_dma_t(solo_dev, 0, + dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off, + SOLO_MP4E_EXT_ADDR(solo_dev), + size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0); + } + + return ret; +} + +/* Build a descriptor queue out of an SG list and send it to the P2M for + * processing. */ +static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip, + struct sg_table *vbuf, int off, int size, + unsigned int base, unsigned int base_size) +{ + struct solo_dev *solo_dev = solo_enc->solo_dev; + struct scatterlist *sg; + int i; + int ret; + + if (WARN_ON_ONCE(size > FRAME_BUF_SIZE)) + return -EINVAL; + + solo_enc->desc_count = 1; + + for_each_sg(vbuf->sgl, sg, vbuf->nents, i) { + struct solo_p2m_desc *desc; + dma_addr_t dma; + int len; + int left = base_size - off; + + desc = &solo_enc->desc_items[solo_enc->desc_count++]; + dma = sg_dma_address(sg); + len = sg_dma_len(sg); + + /* We assume this is smaller than the scatter size */ + BUG_ON(skip >= len); + if (skip) { + len -= skip; + dma += skip; + size -= skip; + skip = 0; + } + + len = min(len, size); + + if (len <= left) { + /* Single descriptor */ + solo_p2m_fill_desc(desc, 0, dma, base + off, + len, 0, 0); + } else { + /* Buffer wrap */ + /* XXX: Do these as separate DMA requests, to avoid + timeout errors triggered by awkwardly sized + descriptors. See + <https://github.com/bluecherrydvr/solo6x10/issues/8> + */ + ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off, + left, 0, 0); + if (ret) + return ret; + + ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base, + len - left, 0, 0); + if (ret) + return ret; + + solo_enc->desc_count--; + } + + size -= len; + if (size <= 0) + break; + + off += len; + if (off >= base_size) + off -= base_size; + + /* Because we may use two descriptors per loop */ + if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) { + ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items, + solo_enc->desc_dma, + solo_enc->desc_count - 1); + if (ret) + return ret; + solo_enc->desc_count = 1; + } + } + + if (solo_enc->desc_count <= 1) + return 0; + + return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items, + solo_enc->desc_dma, solo_enc->desc_count - 1); +} + +/* Extract values from VOP header - VE_STATUSxx */ +static inline __always_unused int vop_interlaced(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 30) & 1; +} + +static inline __always_unused u8 vop_channel(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F; +} + +static inline u8 vop_type(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 22) & 3; +} + +static inline u32 vop_mpeg_size(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[0]) & 0xFFFFF; +} + +static inline u8 __always_unused vop_hsize(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF; +} + +static inline u8 __always_unused vop_vsize(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[1]) & 0xFF; +} + +static inline u32 vop_mpeg_offset(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[2]); +} + +static inline u32 vop_jpeg_offset(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[3]); +} + +static inline u32 vop_jpeg_size(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[4]) & 0xFFFFF; +} + +static inline u32 __always_unused vop_sec(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[5]); +} + +static inline __always_unused u32 vop_usec(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[6]); +} + +static int solo_fill_jpeg(struct solo_enc_dev *solo_enc, + struct vb2_buffer *vb, const vop_header *vh) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct solo_dev *solo_dev = solo_enc->solo_dev; + struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0); + int frame_size; + + vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME; + + if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len) + return -EIO; + + frame_size = ALIGN(vop_jpeg_size(vh) + solo_enc->jpeg_len, DMA_ALIGN); + vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len); + + return solo_send_desc(solo_enc, solo_enc->jpeg_len, sgt, + vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev), + frame_size, SOLO_JPEG_EXT_ADDR(solo_dev), + SOLO_JPEG_EXT_SIZE(solo_dev)); +} + +static int solo_fill_mpeg(struct solo_enc_dev *solo_enc, + struct vb2_buffer *vb, const vop_header *vh) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct solo_dev *solo_dev = solo_enc->solo_dev; + struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0); + int frame_off, frame_size; + int skip = 0; + + if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh)) + return -EIO; + + /* If this is a key frame, add extra header */ + vbuf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME | + V4L2_BUF_FLAG_BFRAME); + if (!vop_type(vh)) { + skip = solo_enc->vop_len; + vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME; + vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) + + solo_enc->vop_len); + } else { + vbuf->flags |= V4L2_BUF_FLAG_PFRAME; + vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh)); + } + + /* Now get the actual mpeg payload */ + frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) + + sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev); + frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN); + + return solo_send_desc(solo_enc, skip, sgt, frame_off, frame_size, + SOLO_MP4E_EXT_ADDR(solo_dev), + SOLO_MP4E_EXT_SIZE(solo_dev)); +} + +static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc, + struct vb2_buffer *vb, struct solo_enc_buf *enc_buf) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + const vop_header *vh = enc_buf->vh; + int ret; + + switch (solo_enc->fmt) { + case V4L2_PIX_FMT_MPEG4: + case V4L2_PIX_FMT_H264: + ret = solo_fill_mpeg(solo_enc, vb, vh); + break; + default: /* V4L2_PIX_FMT_MJPEG */ + ret = solo_fill_jpeg(solo_enc, vb, vh); + break; + } + + if (!ret) { + vbuf->sequence = solo_enc->sequence++; + vb->timestamp = ktime_get_ns(); + + /* Check for motion flags */ + if (solo_is_motion_on(solo_enc) && enc_buf->motion) { + struct v4l2_event ev = { + .type = V4L2_EVENT_MOTION_DET, + .u.motion_det = { + .flags + = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ, + .frame_sequence = vbuf->sequence, + .region_mask = enc_buf->motion ? 1 : 0, + }, + }; + + v4l2_event_queue(solo_enc->vfd, &ev); + } + } + + vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); + + return ret; +} + +static void solo_enc_handle_one(struct solo_enc_dev *solo_enc, + struct solo_enc_buf *enc_buf) +{ + struct solo_vb2_buf *vb; + unsigned long flags; + + mutex_lock(&solo_enc->lock); + if (solo_enc->type != enc_buf->type) + goto unlock; + + spin_lock_irqsave(&solo_enc->av_lock, flags); + if (list_empty(&solo_enc->vidq_active)) { + spin_unlock_irqrestore(&solo_enc->av_lock, flags); + goto unlock; + } + vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf, + list); + list_del(&vb->list); + spin_unlock_irqrestore(&solo_enc->av_lock, flags); + + solo_enc_fillbuf(solo_enc, &vb->vb.vb2_buf, enc_buf); +unlock: + mutex_unlock(&solo_enc->lock); +} + +void solo_enc_v4l2_isr(struct solo_dev *solo_dev) +{ + wake_up_interruptible_all(&solo_dev->ring_thread_wait); +} + +static void solo_handle_ring(struct solo_dev *solo_dev) +{ + for (;;) { + struct solo_enc_dev *solo_enc; + struct solo_enc_buf enc_buf; + u32 mpeg_current, off; + u8 ch; + u8 cur_q; + + /* Check if the hardware has any new ones in the queue */ + cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff; + if (cur_q == solo_dev->enc_idx) + break; + + mpeg_current = solo_reg_read(solo_dev, + SOLO_VE_MPEG4_QUE(solo_dev->enc_idx)); + solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS; + + ch = (mpeg_current >> 24) & 0x1f; + off = mpeg_current & 0x00ffffff; + + if (ch >= SOLO_MAX_CHANNELS) { + ch -= SOLO_MAX_CHANNELS; + enc_buf.type = SOLO_ENC_TYPE_EXT; + } else + enc_buf.type = SOLO_ENC_TYPE_STD; + + solo_enc = solo_dev->v4l2_enc[ch]; + if (solo_enc == NULL) { + dev_err(&solo_dev->pdev->dev, + "Got spurious packet for channel %d\n", ch); + continue; + } + + /* FAIL... */ + if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off, + sizeof(vop_header))) + continue; + + enc_buf.vh = solo_dev->vh_buf; + + /* Sanity check */ + if (vop_mpeg_offset(enc_buf.vh) != + SOLO_MP4E_EXT_ADDR(solo_dev) + off) + continue; + + if (solo_motion_detected(solo_enc)) + enc_buf.motion = 1; + else + enc_buf.motion = 0; + + solo_enc_handle_one(solo_enc, &enc_buf); + } +} + +static int solo_ring_thread(void *data) +{ + struct solo_dev *solo_dev = data; + DECLARE_WAITQUEUE(wait, current); + + set_freezable(); + add_wait_queue(&solo_dev->ring_thread_wait, &wait); + + for (;;) { + long timeout = schedule_timeout_interruptible(HZ); + + if (timeout == -ERESTARTSYS || kthread_should_stop()) + break; + solo_handle_ring(solo_dev); + try_to_freeze(); + } + + remove_wait_queue(&solo_dev->ring_thread_wait, &wait); + + return 0; +} + +static int solo_enc_queue_setup(struct vb2_queue *q, + unsigned int *num_buffers, + unsigned int *num_planes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + sizes[0] = FRAME_BUF_SIZE; + *num_planes = 1; + + if (*num_buffers < MIN_VID_BUFFERS) + *num_buffers = MIN_VID_BUFFERS; + + return 0; +} + +static void solo_enc_buf_queue(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct vb2_queue *vq = vb->vb2_queue; + struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq); + struct solo_vb2_buf *solo_vb = + container_of(vbuf, struct solo_vb2_buf, vb); + + spin_lock(&solo_enc->av_lock); + list_add_tail(&solo_vb->list, &solo_enc->vidq_active); + spin_unlock(&solo_enc->av_lock); +} + +static int solo_ring_start(struct solo_dev *solo_dev) +{ + solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev, + SOLO6X10_NAME "_ring"); + if (IS_ERR(solo_dev->ring_thread)) { + int err = PTR_ERR(solo_dev->ring_thread); + + solo_dev->ring_thread = NULL; + return err; + } + + solo_irq_on(solo_dev, SOLO_IRQ_ENCODER); + + return 0; +} + +static void solo_ring_stop(struct solo_dev *solo_dev) +{ + if (solo_dev->ring_thread) { + kthread_stop(solo_dev->ring_thread); + solo_dev->ring_thread = NULL; + } + + solo_irq_off(solo_dev, SOLO_IRQ_ENCODER); +} + +static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q); + + return solo_enc_on(solo_enc); +} + +static void solo_enc_stop_streaming(struct vb2_queue *q) +{ + struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q); + unsigned long flags; + + spin_lock_irqsave(&solo_enc->av_lock, flags); + solo_enc_off(solo_enc); + while (!list_empty(&solo_enc->vidq_active)) { + struct solo_vb2_buf *buf = list_entry( + solo_enc->vidq_active.next, + struct solo_vb2_buf, list); + + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } + spin_unlock_irqrestore(&solo_enc->av_lock, flags); +} + +static void solo_enc_buf_finish(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); + struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vb->vb2_queue); + struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0); + + switch (solo_enc->fmt) { + case V4L2_PIX_FMT_MPEG4: + case V4L2_PIX_FMT_H264: + if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME) + sg_copy_from_buffer(sgt->sgl, sgt->nents, + solo_enc->vop, solo_enc->vop_len); + break; + default: /* V4L2_PIX_FMT_MJPEG */ + sg_copy_from_buffer(sgt->sgl, sgt->nents, + solo_enc->jpeg_header, solo_enc->jpeg_len); + break; + } +} + +static const struct vb2_ops solo_enc_video_qops = { + .queue_setup = solo_enc_queue_setup, + .buf_queue = solo_enc_buf_queue, + .buf_finish = solo_enc_buf_finish, + .start_streaming = solo_enc_start_streaming, + .stop_streaming = solo_enc_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static int solo_enc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + + strscpy(cap->driver, SOLO6X10_NAME, sizeof(cap->driver)); + snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d", + solo_enc->ch); + return 0; +} + +static int solo_enc_enum_input(struct file *file, void *priv, + struct v4l2_input *input) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + + if (input->index) + return -EINVAL; + + snprintf(input->name, sizeof(input->name), "Encoder %d", + solo_enc->ch + 1); + input->type = V4L2_INPUT_TYPE_CAMERA; + input->std = solo_enc->vfd->tvnorms; + + if (!tw28_get_video_status(solo_dev, solo_enc->ch)) + input->status = V4L2_IN_ST_NO_SIGNAL; + + return 0; +} + +static int solo_enc_set_input(struct file *file, void *priv, + unsigned int index) +{ + if (index) + return -EINVAL; + + return 0; +} + +static int solo_enc_get_input(struct file *file, void *priv, + unsigned int *index) +{ + *index = 0; + + return 0; +} + +static int solo_enc_enum_fmt_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + int dev_type = solo_enc->solo_dev->type; + + switch (f->index) { + case 0: + switch (dev_type) { + case SOLO_DEV_6010: + f->pixelformat = V4L2_PIX_FMT_MPEG4; + break; + case SOLO_DEV_6110: + f->pixelformat = V4L2_PIX_FMT_H264; + break; + } + break; + case 1: + f->pixelformat = V4L2_PIX_FMT_MJPEG; + break; + default: + return -EINVAL; + } + return 0; +} + +static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type) +{ + return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110) + || (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010) + || pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL; +} + +static int solo_enc_try_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + struct v4l2_pix_format *pix = &f->fmt.pix; + + if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type)) + return -EINVAL; + + if (pix->width < solo_dev->video_hsize || + pix->height < solo_dev->video_vsize << 1) { + /* Default to CIF 1/2 size */ + pix->width = solo_dev->video_hsize >> 1; + pix->height = solo_dev->video_vsize; + } else { + /* Full frame */ + pix->width = solo_dev->video_hsize; + pix->height = solo_dev->video_vsize << 1; + } + + switch (pix->field) { + case V4L2_FIELD_NONE: + case V4L2_FIELD_INTERLACED: + break; + case V4L2_FIELD_ANY: + default: + pix->field = V4L2_FIELD_INTERLACED; + break; + } + + /* Just set these */ + pix->colorspace = V4L2_COLORSPACE_SMPTE170M; + pix->sizeimage = FRAME_BUF_SIZE; + pix->bytesperline = 0; + + return 0; +} + +static int solo_enc_set_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + struct v4l2_pix_format *pix = &f->fmt.pix; + int ret; + + if (vb2_is_busy(&solo_enc->vidq)) + return -EBUSY; + + ret = solo_enc_try_fmt_cap(file, priv, f); + if (ret) + return ret; + + if (pix->width == solo_dev->video_hsize) + solo_enc->mode = SOLO_ENC_MODE_D1; + else + solo_enc->mode = SOLO_ENC_MODE_CIF; + + /* This does not change the encoder at all */ + solo_enc->fmt = pix->pixelformat; + + /* + * More information is needed about these 'extended' types. As far + * as I can tell these are basically additional video streams with + * different MPEG encoding attributes that can run in parallel with + * the main stream. If so, then this should be implemented as a + * second video node. Abusing priv like this is certainly not the + * right approach. + if (pix->priv) + solo_enc->type = SOLO_ENC_TYPE_EXT; + */ + solo_update_mode(solo_enc); + return 0; +} + +static int solo_enc_get_fmt_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct v4l2_pix_format *pix = &f->fmt.pix; + + pix->width = solo_enc->width; + pix->height = solo_enc->height; + pix->pixelformat = solo_enc->fmt; + pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED : + V4L2_FIELD_NONE; + pix->sizeimage = FRAME_BUF_SIZE; + pix->colorspace = V4L2_COLORSPACE_SMPTE170M; + + return 0; +} + +static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + + if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) + *i = V4L2_STD_NTSC_M; + else + *i = V4L2_STD_PAL; + return 0; +} + +static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + + return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_625_50); +} + +static int solo_enum_framesizes(struct file *file, void *priv, + struct v4l2_frmsizeenum *fsize) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + + if (solo_valid_pixfmt(fsize->pixel_format, solo_dev->type)) + return -EINVAL; + + switch (fsize->index) { + case 0: + fsize->discrete.width = solo_dev->video_hsize >> 1; + fsize->discrete.height = solo_dev->video_vsize; + break; + case 1: + fsize->discrete.width = solo_dev->video_hsize; + fsize->discrete.height = solo_dev->video_vsize << 1; + break; + default: + return -EINVAL; + } + + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + + return 0; +} + +static int solo_enum_frameintervals(struct file *file, void *priv, + struct v4l2_frmivalenum *fintv) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct solo_dev *solo_dev = solo_enc->solo_dev; + + if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type)) + return -EINVAL; + if (fintv->index) + return -EINVAL; + if ((fintv->width != solo_dev->video_hsize >> 1 || + fintv->height != solo_dev->video_vsize) && + (fintv->width != solo_dev->video_hsize || + fintv->height != solo_dev->video_vsize << 1)) + return -EINVAL; + + fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE; + + fintv->stepwise.min.numerator = 1; + fintv->stepwise.min.denominator = solo_dev->fps; + + fintv->stepwise.max.numerator = 15; + fintv->stepwise.max.denominator = solo_dev->fps; + + fintv->stepwise.step.numerator = 1; + fintv->stepwise.step.denominator = solo_dev->fps; + + return 0; +} + +static int solo_g_parm(struct file *file, void *priv, + struct v4l2_streamparm *sp) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct v4l2_captureparm *cp = &sp->parm.capture; + + cp->capability = V4L2_CAP_TIMEPERFRAME; + cp->timeperframe.numerator = solo_enc->interval; + cp->timeperframe.denominator = solo_enc->solo_dev->fps; + cp->capturemode = 0; + /* XXX: Shouldn't we be able to get/set this from vb2? */ + cp->readbuffers = 2; + + return 0; +} + +static inline int calc_interval(u8 fps, u32 n, u32 d) +{ + if (!n || !d) + return 1; + if (d == fps) + return n; + n *= fps; + return min(15U, n / d + (n % d >= (fps >> 1))); +} + +static int solo_s_parm(struct file *file, void *priv, + struct v4l2_streamparm *sp) +{ + struct solo_enc_dev *solo_enc = video_drvdata(file); + struct v4l2_fract *t = &sp->parm.capture.timeperframe; + u8 fps = solo_enc->solo_dev->fps; + + if (vb2_is_streaming(&solo_enc->vidq)) + return -EBUSY; + + solo_enc->interval = calc_interval(fps, t->numerator, t->denominator); + solo_update_mode(solo_enc); + return solo_g_parm(file, priv, sp); +} + +static int solo_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct solo_enc_dev *solo_enc = + container_of(ctrl->handler, struct solo_enc_dev, hdl); + struct solo_dev *solo_dev = solo_enc->solo_dev; + int err; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + case V4L2_CID_CONTRAST: + case V4L2_CID_SATURATION: + case V4L2_CID_HUE: + case V4L2_CID_SHARPNESS: + return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch, + ctrl->val); + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: + solo_enc->gop = ctrl->val; + solo_reg_write(solo_dev, SOLO_VE_CH_GOP(solo_enc->ch), solo_enc->gop); + solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(solo_enc->ch), solo_enc->gop); + return 0; + case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: + solo_enc->qp = ctrl->val; + solo_reg_write(solo_dev, SOLO_VE_CH_QP(solo_enc->ch), solo_enc->qp); + solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(solo_enc->ch), solo_enc->qp); + return 0; + case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD: + solo_enc->motion_thresh = ctrl->val << 8; + if (!solo_enc->motion_global || !solo_enc->motion_enabled) + return 0; + return solo_set_motion_threshold(solo_dev, solo_enc->ch, + solo_enc->motion_thresh); + case V4L2_CID_DETECT_MD_MODE: + solo_enc->motion_global = ctrl->val == V4L2_DETECT_MD_MODE_GLOBAL; + solo_enc->motion_enabled = ctrl->val > V4L2_DETECT_MD_MODE_DISABLED; + if (ctrl->val) { + if (solo_enc->motion_global) + err = solo_set_motion_threshold(solo_dev, solo_enc->ch, + solo_enc->motion_thresh); + else + err = solo_set_motion_block(solo_dev, solo_enc->ch, + solo_enc->md_thresholds->p_cur.p_u16); + if (err) + return err; + } + solo_motion_toggle(solo_enc, ctrl->val); + return 0; + case V4L2_CID_DETECT_MD_THRESHOLD_GRID: + if (solo_enc->motion_enabled && !solo_enc->motion_global) + return solo_set_motion_block(solo_dev, solo_enc->ch, + solo_enc->md_thresholds->p_new.p_u16); + break; + case V4L2_CID_OSD_TEXT: + strscpy(solo_enc->osd_text, ctrl->p_new.p_char, + sizeof(solo_enc->osd_text)); + return solo_osd_print(solo_enc); + default: + return -EINVAL; + } + + return 0; +} + +static int solo_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + + switch (sub->type) { + case V4L2_EVENT_MOTION_DET: + /* Allow for up to 30 events (1 second for NTSC) to be + * stored. */ + return v4l2_event_subscribe(fh, sub, 30, NULL); + default: + return v4l2_ctrl_subscribe_event(fh, sub); + } +} + +static const struct v4l2_file_operations solo_enc_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .mmap = vb2_fop_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = { + .vidioc_querycap = solo_enc_querycap, + .vidioc_s_std = solo_enc_s_std, + .vidioc_g_std = solo_enc_g_std, + /* Input callbacks */ + .vidioc_enum_input = solo_enc_enum_input, + .vidioc_s_input = solo_enc_set_input, + .vidioc_g_input = solo_enc_get_input, + /* Video capture format callbacks */ + .vidioc_enum_fmt_vid_cap = solo_enc_enum_fmt_cap, + .vidioc_try_fmt_vid_cap = solo_enc_try_fmt_cap, + .vidioc_s_fmt_vid_cap = solo_enc_set_fmt_cap, + .vidioc_g_fmt_vid_cap = solo_enc_get_fmt_cap, + /* Streaming I/O */ + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + /* Frame size and interval */ + .vidioc_enum_framesizes = solo_enum_framesizes, + .vidioc_enum_frameintervals = solo_enum_frameintervals, + /* Video capture parameters */ + .vidioc_s_parm = solo_s_parm, + .vidioc_g_parm = solo_g_parm, + /* Logging and events */ + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = solo_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct video_device solo_enc_template = { + .name = SOLO6X10_NAME, + .fops = &solo_enc_fops, + .ioctl_ops = &solo_enc_ioctl_ops, + .minor = -1, + .release = video_device_release, + .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL, + .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING, +}; + +static const struct v4l2_ctrl_ops solo_ctrl_ops = { + .s_ctrl = solo_s_ctrl, +}; + +static const struct v4l2_ctrl_config solo_osd_text_ctrl = { + .ops = &solo_ctrl_ops, + .id = V4L2_CID_OSD_TEXT, + .name = "OSD Text", + .type = V4L2_CTRL_TYPE_STRING, + .max = OSD_TEXT_MAX, + .step = 1, +}; + +/* Motion Detection Threshold matrix */ +static const struct v4l2_ctrl_config solo_md_thresholds = { + .ops = &solo_ctrl_ops, + .id = V4L2_CID_DETECT_MD_THRESHOLD_GRID, + .dims = { SOLO_MOTION_SZ, SOLO_MOTION_SZ }, + .def = SOLO_DEF_MOT_THRESH, + .max = 65535, + .step = 1, +}; + +static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev, + u8 ch, unsigned nr) +{ + struct solo_enc_dev *solo_enc; + struct v4l2_ctrl_handler *hdl; + int ret; + + solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL); + if (!solo_enc) + return ERR_PTR(-ENOMEM); + + hdl = &solo_enc->hdl; + v4l2_ctrl_handler_init(hdl, 10); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 128); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 128); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_HUE, 0, 255, 1, 128); + if (tw28_has_sharpness(solo_dev, ch)) + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_SHARPNESS, 0, 15, 1, 0); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP); + v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops, + V4L2_CID_DETECT_MD_MODE, + V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0, + V4L2_DETECT_MD_MODE_DISABLED); + v4l2_ctrl_new_std(hdl, &solo_ctrl_ops, + V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD, 0, 0xff, 1, + SOLO_DEF_MOT_THRESH >> 8); + v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL); + solo_enc->md_thresholds = + v4l2_ctrl_new_custom(hdl, &solo_md_thresholds, NULL); + if (hdl->error) { + ret = hdl->error; + goto hdl_free; + } + + solo_enc->solo_dev = solo_dev; + solo_enc->ch = ch; + mutex_init(&solo_enc->lock); + spin_lock_init(&solo_enc->av_lock); + INIT_LIST_HEAD(&solo_enc->vidq_active); + solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ? + V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264; + solo_enc->type = SOLO_ENC_TYPE_STD; + + solo_enc->qp = SOLO_DEFAULT_QP; + solo_enc->gop = solo_dev->fps; + solo_enc->interval = 1; + solo_enc->mode = SOLO_ENC_MODE_CIF; + solo_enc->motion_global = true; + solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH; + solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + solo_enc->vidq.ops = &solo_enc_video_qops; + solo_enc->vidq.mem_ops = &vb2_dma_sg_memops; + solo_enc->vidq.drv_priv = solo_enc; + solo_enc->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM; + solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf); + solo_enc->vidq.lock = &solo_enc->lock; + solo_enc->vidq.dev = &solo_dev->pdev->dev; + ret = vb2_queue_init(&solo_enc->vidq); + if (ret) + goto hdl_free; + solo_update_mode(solo_enc); + + spin_lock_init(&solo_enc->motion_lock); + + /* Initialize this per encoder */ + solo_enc->jpeg_len = sizeof(jpeg_header); + memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len); + + solo_enc->desc_nelts = 32; + solo_enc->desc_items = dma_alloc_coherent(&solo_dev->pdev->dev, + sizeof(struct solo_p2m_desc) * + solo_enc->desc_nelts, + &solo_enc->desc_dma, + GFP_KERNEL); + ret = -ENOMEM; + if (solo_enc->desc_items == NULL) + goto hdl_free; + + solo_enc->vfd = video_device_alloc(); + if (!solo_enc->vfd) + goto pci_free; + + *solo_enc->vfd = solo_enc_template; + solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev; + solo_enc->vfd->ctrl_handler = hdl; + solo_enc->vfd->queue = &solo_enc->vidq; + solo_enc->vfd->lock = &solo_enc->lock; + video_set_drvdata(solo_enc->vfd, solo_enc); + ret = video_register_device(solo_enc->vfd, VFL_TYPE_VIDEO, nr); + if (ret < 0) + goto vdev_release; + + snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name), + "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num, + solo_enc->vfd->num); + + return solo_enc; + +vdev_release: + video_device_release(solo_enc->vfd); +pci_free: + dma_free_coherent(&solo_enc->solo_dev->pdev->dev, + sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts, + solo_enc->desc_items, solo_enc->desc_dma); +hdl_free: + v4l2_ctrl_handler_free(hdl); + kfree(solo_enc); + return ERR_PTR(ret); +} + +static void solo_enc_free(struct solo_enc_dev *solo_enc) +{ + if (solo_enc == NULL) + return; + + dma_free_coherent(&solo_enc->solo_dev->pdev->dev, + sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts, + solo_enc->desc_items, solo_enc->desc_dma); + video_unregister_device(solo_enc->vfd); + v4l2_ctrl_handler_free(&solo_enc->hdl); + kfree(solo_enc); +} + +int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr) +{ + int i; + + init_waitqueue_head(&solo_dev->ring_thread_wait); + + solo_dev->vh_size = sizeof(vop_header); + solo_dev->vh_buf = dma_alloc_coherent(&solo_dev->pdev->dev, + solo_dev->vh_size, + &solo_dev->vh_dma, GFP_KERNEL); + if (solo_dev->vh_buf == NULL) + return -ENOMEM; + + for (i = 0; i < solo_dev->nr_chans; i++) { + solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr); + if (IS_ERR(solo_dev->v4l2_enc[i])) + break; + } + + if (i != solo_dev->nr_chans) { + int ret = PTR_ERR(solo_dev->v4l2_enc[i]); + + while (i--) + solo_enc_free(solo_dev->v4l2_enc[i]); + dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size, + solo_dev->vh_buf, solo_dev->vh_dma); + solo_dev->vh_buf = NULL; + return ret; + } + + if (solo_dev->type == SOLO_DEV_6010) + solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4; + else + solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5; + + dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n", + solo_dev->v4l2_enc[0]->vfd->num, + solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num); + + return solo_ring_start(solo_dev); +} + +void solo_enc_v4l2_exit(struct solo_dev *solo_dev) +{ + int i; + + solo_ring_stop(solo_dev); + + for (i = 0; i < solo_dev->nr_chans; i++) + solo_enc_free(solo_dev->v4l2_enc[i]); + + if (solo_dev->vh_buf) + dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size, + solo_dev->vh_buf, solo_dev->vh_dma); +} |