| /* |
| * Copyright 2017 NXP |
| */ |
| /* |
| * The code contained herein is licensed under the GNU General Public |
| * License. You may obtain a copy of the GNU General Public License |
| * Version 2 or later at the following locations: |
| * |
| * http://www.opensource.org/licenses/gpl-license.html |
| * http://www.gnu.org/copyleft/gpl.html |
| */ |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/io.h> |
| #include <linux/clk.h> |
| #include <linux/of_platform.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <linux/irqreturn.h> |
| #include <linux/interrupt.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/string.h> |
| |
| #include <media/v4l2-mem2mem.h> |
| #include <media/v4l2-ioctl.h> |
| #include <media/v4l2-common.h> |
| #include <media/v4l2-event.h> |
| #include <media/videobuf2-dma-contig.h> |
| |
| #include "mxc-jpeg-hw.h" |
| #include "mxc-jpeg.h" |
| |
| static struct mxc_jpeg_fmt mxc_formats[] = { |
| { |
| .name = "JPEG", |
| .fourcc = V4L2_PIX_FMT_JPEG, |
| .colplanes = 1, |
| .flags = MXC_JPEG_FMT_TYPE_ENC, |
| }, |
| { |
| .name = "RGB32", |
| .fourcc = V4L2_PIX_FMT_RGB32, |
| .depth = 32, |
| .colplanes = 1, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = MXC_JPEG_FMT_TYPE_RAW, |
| }, |
| { |
| .name = "YUV422", |
| .fourcc = V4L2_PIX_FMT_YUYV, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = MXC_JPEG_FMT_TYPE_RAW, |
| }, |
| { |
| .name = "YUV444", |
| .fourcc = V4L2_PIX_FMT_YUV32, |
| .depth = 32, |
| .colplanes = 1, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = MXC_JPEG_FMT_TYPE_RAW, |
| }, |
| }; |
| |
| static const struct of_device_id mxc_jpeg_match[] = { |
| { |
| .compatible = "fsl,imx8-jpgdec", |
| .data = (void *)MXC_JPEG_DECODE, |
| }, |
| { |
| .compatible = "fsl,imx8-jpgenc", |
| .data = (void *)MXC_JPEG_ENCODE, |
| }, |
| { }, |
| }; |
| |
| static const unsigned char hactbl[615] = { |
| 0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, |
| 0x46, 0x49, 0x46, 0x00, 0x01, 0x01, 0x00, |
| 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0xFF, |
| 0xDB, 0x00, 0x84, 0x00, 0x10, 0x0B, 0x0C, |
| 0x0E, 0x0C, 0x0A, 0x10, 0x0E, 0x0D, 0x0E, |
| 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, 0x1A, |
| 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, |
| 0x1D, 0x28, 0x3A, 0x33, 0x3D, 0x3C, 0x39, |
| 0x33, 0x38, 0x37, 0x40, 0x48, 0x5C, 0x4E, |
| 0x40, 0x44, 0x57, 0x45, 0x37, 0x38, 0x50, |
| 0x6D, 0x51, 0x57, 0x5F, 0x62, 0x67, 0x68, |
| 0x67, 0x3E, 0x4D, 0x71, 0x79, 0x70, 0x64, |
| 0x78, 0x5C, 0x65, 0x67, 0x63, 0x01, 0x11, |
| 0x12, 0x12, 0x18, 0x15, 0x18, 0x2F, 0x1A, |
| 0x1A, 0x2F, 0x63, 0x42, 0x38, 0x42, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x01, 0x00, |
| 0x01, 0x00, 0x03, 0x01, 0x11, 0x00, 0x02, |
| 0x11, 0x01, 0x03, 0x11, 0x01, 0xFF, 0xC4, |
| 0x01, 0xA2, 0x00, 0x00, 0x01, 0x05, 0x01, |
| 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, |
| 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, |
| 0x09, 0x0A, 0x0B, 0x10, 0x00, 0x02, 0x01, |
| 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, |
| 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, |
| 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, |
| 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, |
| 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, |
| 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, |
| 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, |
| 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, |
| 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, |
| 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, |
| 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, |
| 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, |
| 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, |
| 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, |
| 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, |
| 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, |
| 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, |
| 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, |
| 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, |
| 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, |
| 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, |
| 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, |
| 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, |
| 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, |
| 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, |
| 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, |
| 0x0B, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, |
| 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, |
| 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, |
| 0x03, 0x11, 0x04, 0x05, 0x21, 0x31, 0x06, |
| 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 0x13, |
| 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, |
| 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, |
| 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, |
| 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, |
| 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, |
| 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, |
| 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, |
| 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
| 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, |
| 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, |
| 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, |
| 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, |
| 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, |
| 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, |
| 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, |
| 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, |
| 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, |
| 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, |
| 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, |
| 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, |
| 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xDD, |
| 0x00, 0x04, 0x00, 0x20, 0xFF, 0xDA, 0x00, |
| 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, |
| 0x11, 0x00, 0x3F, 0x00, 0xFF, 0xD9 |
| }; |
| |
| struct mxc_jpeg_src_buf { |
| struct vb2_v4l2_buffer b; |
| struct list_head list; |
| struct mxc_jpeg_desc *desc; |
| void *tbl; |
| int flags; |
| dma_addr_t handle; |
| dma_addr_t cfg_handle; |
| dma_addr_t tbl_handle; |
| }; |
| |
| #define MXC_NUM_FORMATS ARRAY_SIZE(mxc_formats) |
| static inline u32 mxc_jpeg_align(u32 val, u32 align) |
| { |
| return (val + align - 1) & ~(align - 1); |
| } |
| |
| |
| static inline struct mxc_jpeg_ctx *mxc_jpeg_fh_to_ctx(struct v4l2_fh *fh) |
| { |
| return container_of(fh, struct mxc_jpeg_ctx, fh); |
| } |
| |
| static inline struct mxc_jpeg_src_buf *mxc_jpeg_vb2_to_srcbuf( |
| struct vb2_buffer *vb) |
| { |
| return container_of(to_vb2_v4l2_buffer(vb), struct mxc_jpeg_src_buf, b); |
| } |
| |
| static int enum_fmt(struct mxc_jpeg_fmt *mxc_formats, int n, |
| struct v4l2_fmtdesc *f, u32 type) |
| { |
| int i, num = 0; |
| |
| for (i = 0; i < n; ++i) { |
| if (mxc_formats[i].flags & type) { |
| /* index-th format of type type found ? */ |
| if (num == f->index) |
| break; |
| /* Correct type but haven't reached our index yet, |
| * just increment per-type index |
| */ |
| ++num; |
| } |
| } |
| |
| /* Format not found */ |
| if (i >= n) |
| return -EINVAL; |
| |
| strlcpy(f->description, mxc_formats[i].name, sizeof(f->description)); |
| f->pixelformat = mxc_formats[i].fourcc; |
| |
| return 0; |
| } |
| |
| void mxc_jpeg_addrs(struct mxc_jpeg_desc *desc, struct vb2_buffer *b_base0_buf, |
| struct vb2_buffer *bufbase_buf, int offset) |
| { |
| u32 buf_base0, bufbase; |
| |
| buf_base0 = vb2_dma_contig_plane_dma_addr(b_base0_buf, 0); |
| bufbase = vb2_dma_contig_plane_dma_addr(bufbase_buf, 0); |
| mxc_jpeg_set_addrs(desc, buf_base0, bufbase + offset); |
| } |
| |
| static irqreturn_t mxc_jpeg_dec_irq(int irq, void *priv) |
| { |
| struct mxc_jpeg_dev *jpeg = priv; |
| struct mxc_jpeg_ctx *ctx; |
| void __iomem *reg = jpeg->base_reg; |
| struct vb2_buffer *src_buf, *dst_buf; |
| struct mxc_jpeg_src_buf *jpeg_src_buf; |
| enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR; |
| struct mxc_jpeg_desc *desc; |
| dma_addr_t dma_handle; |
| u32 dec_ret, offset, slot; |
| struct mxc_jpeg_q_data *q_data; |
| void *testaddri; |
| void *testaddro; |
| |
| dec_ret = readl(reg + 0x10000); |
| writel(dec_ret, reg + 0x10000); |
| if (!(dec_ret & 0x8)) |
| return IRQ_HANDLED; |
| ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| jpeg_src_buf = mxc_jpeg_vb2_to_srcbuf(src_buf); |
| |
| if (ctx->mode == MXC_JPEG_ENCODE && |
| ctx->enc_state == MXC_JPEG_ENC_CONF) { |
| q_data = &ctx->out_q; |
| desc = jpeg_src_buf->desc; |
| dma_handle = jpeg_src_buf->handle; |
| |
| testaddri = vb2_plane_vaddr(src_buf, 0); |
| testaddro = vb2_plane_vaddr(dst_buf, 0); |
| |
| offset = mxc_jpeg_get_offset(jpeg->base_reg, 0); |
| mxc_jpeg_addrs(desc, src_buf, dst_buf, offset); |
| slot = mxc_jpeg_get_slot(jpeg->base_reg); |
| mxc_jpeg_set_params(desc, mxc_jpeg_align( |
| vb2_plane_size(src_buf, 0), 1024), |
| q_data->bytesperline[0], |
| q_data->fmt->fourcc); |
| mxc_jpeg_set_res(desc, q_data->w, q_data->h); |
| ctx->enc_state = MXC_JPEG_ENC_DONE; |
| mxc_jpeg_set_desc(dma_handle, jpeg->base_reg, slot); |
| return IRQ_HANDLED; |
| } |
| buf_state = VB2_BUF_STATE_DONE; |
| v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
| v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
| v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), buf_state); |
| v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf), buf_state); |
| v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); |
| return IRQ_HANDLED; |
| } |
| void mxc_jpeg_config_enc(struct vb2_buffer *out_buf, |
| struct mxc_jpeg_src_buf *jpeg_src_buf, |
| struct mxc_jpeg_dev *jpeg) |
| { |
| dma_addr_t jpg_handle; |
| |
| jpg_handle = vb2_dma_contig_plane_dma_addr(out_buf, 0); |
| jpeg_src_buf->tbl = dma_zalloc_coherent(jpeg->dev, |
| sizeof(unsigned char) * 615, |
| &jpeg_src_buf->tbl_handle, 0); |
| memcpy(jpeg_src_buf->tbl, &hactbl, sizeof(unsigned char) * 615); |
| |
| mxc_jpeg_enc_config(jpeg->base_reg, jpeg_src_buf->desc, jpeg_src_buf->handle, |
| jpeg_src_buf->tbl_handle, jpg_handle); |
| |
| } |
| static void mxc_jpeg_device_run(void *priv) |
| { |
| struct mxc_jpeg_ctx *ctx = priv; |
| struct mxc_jpeg_dev *jpeg = ctx->mxc_jpeg; |
| struct vb2_buffer *src_buf, *dst_buf; |
| unsigned long flags; |
| struct mxc_jpeg_q_data *cap_q_data = &ctx->cap_q; |
| struct mxc_jpeg_src_buf *jpeg_src_buf; |
| int slot; |
| void *testaddri; |
| void *testaddro; |
| dma_addr_t dma_handle; |
| struct mxc_jpeg_desc *desc; |
| |
| |
| src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| jpeg_src_buf = mxc_jpeg_vb2_to_srcbuf(src_buf); |
| desc = jpeg_src_buf->desc; |
| dma_handle = jpeg_src_buf->handle; |
| |
| |
| testaddri = vb2_plane_vaddr(src_buf, 0); |
| testaddro = vb2_plane_vaddr(dst_buf, 0); |
| spin_lock_irqsave(&ctx->mxc_jpeg->hw_lock, flags); |
| mxc_jpeg_enable(jpeg->base_reg); |
| |
| if (ctx->mode == MXC_JPEG_ENCODE) { |
| ctx->enc_state = MXC_JPEG_ENC_CONF; |
| mxc_jpeg_config_enc(dst_buf, jpeg_src_buf, jpeg); |
| } else { |
| mxc_jpeg_addrs(desc, dst_buf, src_buf, 0); |
| slot = mxc_jpeg_get_slot(jpeg->base_reg); |
| mxc_jpeg_enable_slot(jpeg->base_reg, slot); |
| mxc_jpeg_set_params(desc, |
| mxc_jpeg_align(vb2_plane_size(src_buf, 0), |
| 1024), |
| cap_q_data->bytesperline[0], |
| cap_q_data->fmt->fourcc); |
| mxc_jpeg_enable_irq(jpeg->base_reg, slot); |
| mxc_jpeg_set_desc(dma_handle, jpeg->base_reg, slot); |
| mxc_jpeg_go(jpeg->base_reg); |
| } |
| spin_unlock_irqrestore(&ctx->mxc_jpeg->hw_lock, flags); |
| } |
| static int mxc_jpeg_job_ready(void *priv) |
| { |
| return 1; |
| } |
| static void mxc_jpeg_job_abort(void *priv) |
| { |
| } |
| |
| static struct mxc_jpeg_q_data *mxc_jpeg_get_q_data(struct mxc_jpeg_ctx *ctx, |
| enum v4l2_buf_type type) |
| { |
| if (V4L2_TYPE_IS_OUTPUT(type)) |
| return &ctx->out_q; |
| return &ctx->cap_q; |
| } |
| |
| static int mxc_jpeg_queue_setup(struct vb2_queue *q, |
| unsigned int *num_buffers, |
| unsigned int *num_planes, |
| unsigned int sizes[], |
| struct device *alloc_ctxs[]) |
| { |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| struct mxc_jpeg_q_data *q_data = NULL; |
| |
| q_data = mxc_jpeg_get_q_data(ctx, q->type); |
| if (!q_data) |
| return -EINVAL; |
| *num_planes = 1; |
| sizes[0] = 10; |
| |
| if (q_data->sizeimage[0] > 0) |
| sizes[0] = q_data->sizeimage[0]; |
| |
| return 0; |
| } |
| static int mxc_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) |
| { |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| int ret; |
| |
| ret = pm_runtime_get_sync(ctx->mxc_jpeg->dev); |
| return ret > 0 ? 0 : ret; |
| } |
| |
| static void mxc_jpeg_stop_streaming(struct vb2_queue *q) |
| { |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| |
| pm_runtime_put(&ctx->mxc_jpeg->pdev->dev); |
| } |
| struct mxc_jpeg_stream { |
| u8 *addr; |
| u32 loc; |
| u32 end; |
| }; |
| static u8 get_byte(struct mxc_jpeg_stream *stream) |
| { |
| u8 ret; |
| |
| if (stream->loc >= stream->end) |
| return -1; |
| ret = stream->addr[stream->loc]; |
| stream->loc++; |
| return ret; |
| } |
| static u16 get_word_be(struct mxc_jpeg_stream *stream, u32 *word) |
| { |
| u16 ret1; |
| u16 ret2; |
| |
| ret1 = get_byte(stream); |
| ret2 = get_byte(stream); |
| if (ret1 != -1 && ret2 != -1) { |
| *word = ((ret1 << 8) | ret2); |
| return 0; |
| } |
| return -1; |
| } |
| static int mxc_jpeg_parse(struct mxc_jpeg_desc *desc, u8 *src_addr, u32 size) |
| { |
| struct mxc_jpeg_stream stream; |
| bool notfound = true; |
| int height, width, byte, length, word; |
| |
| stream.addr = src_addr; |
| stream.end = size; |
| stream.loc = 0; |
| while (notfound) { |
| byte = get_byte(&stream); |
| if (byte == -1) |
| return -EINVAL; |
| if (byte != 0xff) |
| continue; |
| do { |
| byte = get_byte(&stream); |
| } while (byte == 0xff); |
| if (byte == -1) |
| return false; |
| if (byte == 0) |
| continue; |
| length = 0; |
| switch (byte) { |
| case SOF2: |
| case SOF0: |
| if (get_word_be(&stream, &word)) |
| break; |
| length = (long)word - 2; |
| if (!length) |
| return false; |
| if (get_byte(&stream) == -1) |
| break; |
| if (get_word_be(&stream, &height)) |
| break; |
| if (get_word_be(&stream, &width)) |
| break; |
| notfound = false; |
| break; |
| default: |
| notfound = true; |
| } |
| } |
| if (width % 8 != 0 || height % 8 != 0) |
| return -EINVAL; |
| desc->w = width; |
| desc->h = height; |
| return 0; |
| } |
| static void mxc_jpeg_buf_queue(struct vb2_buffer *vb) |
| { |
| int ret; |
| struct mxc_jpeg_src_buf *jpeg_src_buf; |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| |
| if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
| goto end; |
| jpeg_src_buf = container_of(vbuf, struct mxc_jpeg_src_buf, b); |
| jpeg_src_buf->desc = dma_zalloc_coherent(ctx->mxc_jpeg->dev, |
| sizeof(struct mxc_jpeg_desc), |
| &jpeg_src_buf->handle, 0); |
| if (ctx->mode != MXC_JPEG_DECODE) |
| goto end; |
| ret = mxc_jpeg_parse(jpeg_src_buf->desc, (u8 *)vb2_plane_vaddr(vb, 0), |
| vb2_get_plane_payload(vb, 0)); |
| if (ret) { |
| v4l2_err(&ctx->mxc_jpeg->v4l2_dev, |
| "driver does not support this resolution\n"); |
| vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
| return; |
| } |
| |
| if (ctx->state == MXC_JPEG_INIT) { |
| struct vb2_queue *dst_vq = v4l2_m2m_get_vq( |
| ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); |
| static const struct v4l2_event ev_src_ch = { |
| .type = V4L2_EVENT_SOURCE_CHANGE, |
| .u.src_change.changes = |
| V4L2_EVENT_SRC_CH_RESOLUTION, |
| }; |
| |
| v4l2_event_queue_fh(&ctx->fh, &ev_src_ch); |
| if (vb2_is_streaming(dst_vq)) |
| ctx->state = MXC_JPEG_RUNNING; |
| } |
| |
| end: |
| v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
| } |
| static int mxc_jpeg_buf_prepare(struct vb2_buffer *vb) |
| { |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| struct mxc_jpeg_q_data *q_data = NULL; |
| |
| q_data = mxc_jpeg_get_q_data(ctx, vb->vb2_queue->type); |
| if (!q_data) |
| return -EINVAL; |
| |
| vb2_set_plane_payload(vb, 0, q_data->sizeimage[0]); |
| return 0; |
| } |
| |
| static void mxc_jpeg_buf_clean(struct vb2_buffer *vb) |
| { |
| struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct mxc_jpeg_src_buf *jpeg_src_buf; |
| |
| jpeg_src_buf = container_of(vbuf, struct mxc_jpeg_src_buf, b); |
| |
| if (ctx->mode == MXC_JPEG_ENCODE && |
| ctx->enc_state == MXC_JPEG_ENC_CONF) |
| dma_free_coherent(ctx->mxc_jpeg->dev, sizeof(hactbl), |
| jpeg_src_buf->tbl, jpeg_src_buf->tbl_handle); |
| |
| dma_free_coherent(ctx->mxc_jpeg->dev, sizeof(struct mxc_jpeg_desc), |
| jpeg_src_buf->desc, jpeg_src_buf->handle); |
| } |
| |
| static const struct vb2_ops mxc_jpeg_qops = { |
| .queue_setup = mxc_jpeg_queue_setup, |
| |
| .buf_prepare = mxc_jpeg_buf_prepare, |
| .buf_queue = mxc_jpeg_buf_queue, |
| .wait_prepare = vb2_ops_wait_prepare, |
| .wait_finish = vb2_ops_wait_finish, |
| .start_streaming = mxc_jpeg_start_streaming, |
| .stop_streaming = mxc_jpeg_stop_streaming, |
| .buf_cleanup = mxc_jpeg_buf_clean, |
| }; |
| static int mxc_jpeg_queue_init(void *priv, struct vb2_queue *src_vq, |
| struct vb2_queue *dst_vq) |
| { |
| struct mxc_jpeg_ctx *ctx = priv; |
| int ret; |
| |
| src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| src_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| src_vq->drv_priv = ctx; |
| src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| src_vq->ops = &mxc_jpeg_qops; |
| src_vq->mem_ops = &vb2_dma_contig_memops; |
| src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
| src_vq->lock = &ctx->mxc_jpeg->lock; |
| src_vq->dev = ctx->mxc_jpeg->dev; |
| |
| ret = vb2_queue_init(src_vq); |
| if (ret) |
| return ret; |
| |
| dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| dst_vq->drv_priv = ctx; |
| dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| dst_vq->ops = &mxc_jpeg_qops; |
| dst_vq->mem_ops = &vb2_dma_contig_memops; |
| dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
| dst_vq->lock = &ctx->mxc_jpeg->lock; |
| dst_vq->dev = ctx->mxc_jpeg->dev; |
| |
| ret = vb2_queue_init(dst_vq); |
| return ret; |
| } |
| |
| static struct mxc_jpeg_fmt *mxc_jpeg_find_format(struct mxc_jpeg_ctx *ctx, |
| u32 pixelformat, |
| unsigned int fmt_type) |
| { |
| unsigned int k, fmt_flag; |
| |
| fmt_flag = fmt_type; |
| |
| if (ctx->mode == MXC_JPEG_ENCODE) |
| fmt_flag = (fmt_type == MXC_JPEG_FMT_TYPE_RAW) ? |
| MXC_JPEG_FMT_TYPE_ENC : |
| MXC_JPEG_FMT_TYPE_RAW; |
| |
| for (k = 0; k < MXC_JPEG_NUM_FORMATS; k++) { |
| struct mxc_jpeg_fmt *fmt = &mxc_formats[k]; |
| |
| if (fmt->fourcc == pixelformat && fmt->flags == fmt_flag) |
| return fmt; |
| } |
| return NULL; |
| } |
| |
| |
| static int mxc_jpeg_open(struct file *file) |
| { |
| struct mxc_jpeg_dev *mxc_jpeg = video_drvdata(file); |
| struct video_device *mxc_vfd = video_devdata(file); |
| struct mxc_jpeg_ctx *ctx; |
| struct mxc_jpeg_fmt *out_fmt, *cap_fmt; |
| int ret = 0; |
| |
| ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| if (mutex_lock_interruptible(&mxc_jpeg->lock)) { |
| ret = -ERESTARTSYS; |
| goto free; |
| } |
| |
| pm_runtime_get_sync(mxc_jpeg->dev); |
| |
| v4l2_fh_init(&ctx->fh, mxc_vfd); |
| file->private_data = &ctx->fh; |
| v4l2_fh_add(&ctx->fh); |
| |
| ctx->mxc_jpeg = mxc_jpeg; |
| if (mxc_jpeg->mode == MXC_JPEG_ENCODE) { |
| ctx->mode = MXC_JPEG_ENCODE; |
| cap_fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_RGB24, |
| MXC_JPEG_FMT_TYPE_ENC); |
| out_fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG, |
| MXC_JPEG_FMT_TYPE_RAW); |
| } else { |
| ctx->mode = MXC_JPEG_DECODE; |
| out_fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_RGB24, |
| MXC_JPEG_FMT_TYPE_RAW); |
| cap_fmt = mxc_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG, |
| MXC_JPEG_FMT_TYPE_ENC); |
| } |
| ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(mxc_jpeg->m2m_dev, ctx, |
| mxc_jpeg_queue_init); |
| ctx->out_q.fmt = out_fmt; |
| ctx->cap_q.fmt = cap_fmt; |
| if (IS_ERR(ctx->fh.m2m_ctx)) { |
| ret = PTR_ERR(ctx->fh.m2m_ctx); |
| goto error; |
| } |
| |
| |
| |
| mutex_unlock(&mxc_jpeg->lock); |
| return 0; |
| |
| error: |
| v4l2_fh_del(&ctx->fh); |
| v4l2_fh_exit(&ctx->fh); |
| mutex_unlock(&mxc_jpeg->lock); |
| free: |
| kfree(ctx); |
| return ret; |
| } |
| |
| static int mxc_jpeg_querycap(struct file *file, void *priv, |
| struct v4l2_capability *cap) |
| { |
| struct mxc_jpeg_dev *mxc_jpeg = video_drvdata(file); |
| |
| strlcpy(cap->driver, MXC_JPEG_NAME " decoder", sizeof(cap->driver)); |
| strlcpy(cap->card, MXC_JPEG_NAME " decoder", sizeof(cap->card)); |
| snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", |
| dev_name(mxc_jpeg->dev)); |
| cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M; |
| cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
| |
| return 0; |
| } |
| static int mxc_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| return enum_fmt(mxc_formats, MXC_NUM_FORMATS, f, |
| MXC_IN_FORMAT); |
| } |
| |
| static int mxc_jpeg_enum_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| return enum_fmt(mxc_formats, MXC_NUM_FORMATS, f, |
| MXC_OUT_FORMAT); |
| } |
| static void mxc_jpeg_bound_align_image(u32 *w, unsigned int wmin, |
| unsigned int wmax, unsigned int walign, |
| u32 *h, unsigned int hmin, |
| unsigned int hmax, unsigned int halign) |
| { |
| int width, height, w_step, h_step; |
| |
| width = *w; |
| height = *h; |
| w_step = 1 << walign; |
| h_step = 1 << halign; |
| |
| v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); |
| if (*w < width && (*w + w_step) <= wmax) |
| *w += w_step; |
| if (*h < height && (*h + h_step) <= hmax) |
| *h += h_step; |
| } |
| static int mxc_jpeg_try_fmt(struct v4l2_format *f, struct mxc_jpeg_fmt *fmt, |
| struct mxc_jpeg_ctx *ctx, int q_type) |
| { |
| struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; |
| struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0]; |
| u32 stride, h; |
| |
| memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); |
| pix_mp->field = V4L2_FIELD_NONE; |
| pix_mp->num_planes = fmt->colplanes; |
| pix_mp->pixelformat = fmt->fourcc; |
| |
| if (q_type == MXC_JPEG_FMT_TYPE_ENC && ctx->mode == MXC_JPEG_DECODE) { |
| struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0]; |
| |
| mxc_jpeg_bound_align_image(&pix_mp->width, |
| MXC_JPEG_MIN_WIDTH, |
| MXC_JPEG_MAX_WIDTH, |
| MXC_JPEG_MIN_WIDTH, |
| &pix_mp->height, |
| MXC_JPEG_MIN_HEIGHT, |
| MXC_JPEG_MAX_HEIGHT, |
| MXC_JPEG_MIN_WIDTH); |
| |
| memset(pfmt->reserved, 0, sizeof(pfmt->reserved)); |
| pfmt->bytesperline = 0; |
| /* Source size must be aligned to 128 */ |
| pfmt->sizeimage = mxc_jpeg_align(pfmt->sizeimage, 128); |
| if (pfmt->sizeimage == 0) |
| pfmt->sizeimage = MXC_JPEG_DEFAULT_SIZEIMAGE; |
| return 0; |
| } |
| |
| /* type is MXC_JPEG_FMT_TYPE_RAW */ |
| mxc_jpeg_bound_align_image(&pix_mp->width, MXC_JPEG_MIN_WIDTH, |
| MXC_JPEG_MAX_WIDTH, MXC_JPEG_MIN_WIDTH, |
| &pix_mp->height, MXC_JPEG_MIN_HEIGHT, |
| MXC_JPEG_MAX_HEIGHT, MXC_JPEG_MIN_WIDTH); |
| |
| pfmt = &pix_mp->plane_fmt[0]; |
| stride = pix_mp->width * 3; |
| h = pix_mp->height; |
| memset(pfmt->reserved, 0, sizeof(pfmt->reserved)); |
| pfmt->bytesperline = stride; |
| pfmt->sizeimage = stride * h; |
| |
| return 0; |
| } |
| static int mxc_jpeg_try_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(priv); |
| struct mxc_jpeg_fmt *fmt; |
| |
| fmt = mxc_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat, |
| MXC_JPEG_FMT_TYPE_RAW); |
| return mxc_jpeg_try_fmt(f, fmt, ctx, MXC_JPEG_FMT_TYPE_RAW); |
| } |
| static int mxc_jpeg_try_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(priv); |
| struct mxc_jpeg_fmt *fmt; |
| |
| fmt = mxc_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat, |
| MXC_JPEG_FMT_TYPE_ENC); |
| return mxc_jpeg_try_fmt(f, fmt, ctx, MXC_JPEG_FMT_TYPE_ENC); |
| } |
| static int mxc_jpeg_s_fmt(struct mxc_jpeg_ctx *ctx, |
| struct v4l2_format *f) |
| { |
| struct vb2_queue *vq; |
| struct mxc_jpeg_q_data *q_data = NULL; |
| struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; |
| struct mxc_jpeg_dev *jpeg = ctx->mxc_jpeg; |
| unsigned int f_type; |
| |
| vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
| if (!vq) |
| return -EINVAL; |
| |
| q_data = mxc_jpeg_get_q_data(ctx, f->type); |
| |
| if (vb2_is_busy(vq)) { |
| v4l2_err(&jpeg->v4l2_dev, "queue busy\n"); |
| return -EBUSY; |
| } |
| |
| f_type = f->type; |
| |
| q_data->fmt = mxc_jpeg_find_format(ctx, pix_mp->pixelformat, f_type); |
| q_data->w = pix_mp->width; |
| q_data->h = pix_mp->height; |
| q_data->bytesperline[0] = pix_mp->plane_fmt[0].bytesperline; |
| q_data->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage; |
| |
| return 0; |
| } |
| static int mxc_jpeg_s_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| int ret; |
| |
| ret = mxc_jpeg_try_fmt_vid_cap(file, priv, f); |
| if (ret) |
| return ret; |
| |
| return mxc_jpeg_s_fmt(mxc_jpeg_fh_to_ctx(priv), f); |
| } |
| static int mxc_jpeg_s_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| int ret; |
| |
| ret = mxc_jpeg_try_fmt_vid_out(file, priv, f); |
| if (ret) |
| return ret; |
| |
| return mxc_jpeg_s_fmt(mxc_jpeg_fh_to_ctx(priv), f); |
| } |
| static int mxc_jpeg_g_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| return 0; |
| } |
| static int mxc_jpeg_g_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| return 0; |
| } |
| |
| static int mxc_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) |
| { |
| struct v4l2_fh *fh = file->private_data; |
| struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(priv); |
| struct vb2_queue *vq; |
| struct vb2_buffer *vb; |
| struct mxc_jpeg_src_buf *jpeg_src_buf; |
| |
| if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) |
| goto end; |
| |
| vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type); |
| if (buf->index >= vq->num_buffers) { |
| dev_err(ctx->mxc_jpeg->dev, "buffer index out of range\n"); |
| return -EINVAL; |
| } |
| |
| vb = vq->bufs[buf->index]; |
| jpeg_src_buf = mxc_jpeg_vb2_to_srcbuf(vb); |
| end: |
| return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf); |
| } |
| |
| static const struct v4l2_ioctl_ops mxc_jpeg_ioctl_ops = { |
| .vidioc_querycap = mxc_jpeg_querycap, |
| .vidioc_enum_fmt_vid_cap = mxc_jpeg_enum_fmt_vid_cap, |
| .vidioc_enum_fmt_vid_out = mxc_jpeg_enum_fmt_vid_out, |
| |
| .vidioc_try_fmt_vid_cap = mxc_jpeg_try_fmt_vid_cap, |
| .vidioc_try_fmt_vid_out = mxc_jpeg_try_fmt_vid_out, |
| |
| .vidioc_s_fmt_vid_cap = mxc_jpeg_s_fmt_vid_cap, |
| .vidioc_s_fmt_vid_out = mxc_jpeg_s_fmt_vid_out, |
| |
| .vidioc_g_fmt_vid_cap = mxc_jpeg_g_fmt_vid_cap, |
| .vidioc_g_fmt_vid_out = mxc_jpeg_g_fmt_vid_out, |
| |
| .vidioc_qbuf = mxc_jpeg_qbuf, |
| |
| .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, |
| .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, |
| .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
| .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
| .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
| .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, |
| .vidioc_streamon = v4l2_m2m_ioctl_streamon, |
| .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
| }; |
| |
| static int mxc_jpeg_release(struct file *file) |
| { |
| struct mxc_jpeg_dev *mxc_jpeg = video_drvdata(file); |
| struct mxc_jpeg_ctx *ctx = mxc_jpeg_fh_to_ctx(file->private_data); |
| |
| mutex_lock(&mxc_jpeg->lock); |
| v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
| v4l2_fh_del(&ctx->fh); |
| v4l2_fh_exit(&ctx->fh); |
| kfree(ctx); |
| mutex_unlock(&mxc_jpeg->lock); |
| |
| pm_runtime_put_sync(mxc_jpeg->dev); |
| return 0; |
| } |
| |
| static const struct v4l2_file_operations mxc_jpeg_fops = { |
| .owner = THIS_MODULE, |
| .open = mxc_jpeg_open, |
| .release = mxc_jpeg_release, |
| .poll = v4l2_m2m_fop_poll, |
| .unlocked_ioctl = video_ioctl2, |
| .mmap = v4l2_m2m_fop_mmap, |
| }; |
| static struct v4l2_m2m_ops mxc_jpeg_m2m_ops = { |
| .device_run = mxc_jpeg_device_run, |
| .job_ready = mxc_jpeg_job_ready, |
| .job_abort = mxc_jpeg_job_abort, |
| }; |
| |
| static int mxc_jpeg_probe(struct platform_device *pdev) |
| { |
| struct mxc_jpeg_dev *jpeg; |
| struct device *dev = &pdev->dev; |
| struct resource *res; |
| int dec_irq; |
| int ret; |
| int mode; |
| const struct of_device_id *of_id; |
| |
| of_id = of_match_node(mxc_jpeg_match, dev->of_node); |
| mode = (int)(u64) of_id->data; |
| |
| jpeg = devm_kzalloc(dev, sizeof(struct mxc_jpeg_dev), GFP_KERNEL); |
| if (!jpeg) |
| return -ENOMEM; |
| |
| mutex_init(&jpeg->lock); |
| spin_lock_init(&jpeg->hw_lock); |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| dec_irq = platform_get_irq(pdev, 0); |
| if (!res || dec_irq < 0) { |
| dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq); |
| ret = -EINVAL; |
| goto err_irq; |
| } |
| ret = devm_request_irq(&pdev->dev, dec_irq, mxc_jpeg_dec_irq, 0, |
| pdev->name, jpeg); |
| if (ret) { |
| dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n", |
| dec_irq, ret); |
| ret = -EINVAL; |
| goto err_irq; |
| } |
| jpeg->base_reg = devm_ioremap_resource(&pdev->dev, res); |
| if (IS_ERR(jpeg->base_reg)) |
| return PTR_ERR(jpeg->base_reg); |
| |
| jpeg->pdev = pdev; |
| jpeg->dev = dev; |
| jpeg->mode = mode; |
| |
| /* Start clock */ |
| jpeg->clk_ipg = devm_clk_get(dev, "ipg"); |
| if (IS_ERR(jpeg->clk_ipg)) { |
| dev_err(dev, "failed to get clock: ipg\n"); |
| goto err_clk; |
| } |
| |
| jpeg->clk_per = devm_clk_get(dev, "per"); |
| if (IS_ERR(jpeg->clk_per)) { |
| dev_err(dev, "failed to get clock: per\n"); |
| goto err_clk; |
| } |
| |
| /* v4l2 */ |
| ret = v4l2_device_register(dev, &jpeg->v4l2_dev); |
| if (ret) { |
| dev_err(dev, "failed to register v4l2 device\n"); |
| goto err_register; |
| } |
| jpeg->m2m_dev = v4l2_m2m_init(&mxc_jpeg_m2m_ops); |
| if (IS_ERR(jpeg->m2m_dev)) { |
| dev_err(dev, "failed to register v4l2 device\n"); |
| goto err_m2m; |
| } |
| |
| jpeg->dec_vdev = video_device_alloc(); |
| if (!jpeg->dec_vdev) { |
| dev_err(dev, "failed to register v4l2 device\n"); |
| goto err_vdev_alloc; |
| } |
| if (mode == MXC_JPEG_ENCODE) |
| snprintf(jpeg->dec_vdev->name, |
| sizeof(jpeg->dec_vdev->name), |
| "%s-enc", MXC_JPEG_M2M_NAME); |
| else |
| snprintf(jpeg->dec_vdev->name, |
| sizeof(jpeg->dec_vdev->name), |
| "%s-dec", MXC_JPEG_M2M_NAME); |
| |
| jpeg->dec_vdev->fops = &mxc_jpeg_fops; |
| jpeg->dec_vdev->ioctl_ops = &mxc_jpeg_ioctl_ops; |
| jpeg->dec_vdev->minor = -1; |
| jpeg->dec_vdev->release = video_device_release; |
| jpeg->dec_vdev->lock = &jpeg->lock; |
| jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev; |
| jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M; |
| jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING | |
| V4L2_CAP_VIDEO_M2M; |
| |
| ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, -1); |
| if (ret) { |
| dev_err(dev, "failed to register video device\n"); |
| goto err_vdev_register; |
| } |
| video_set_drvdata(jpeg->dec_vdev, jpeg); |
| if (mode == MXC_JPEG_ENCODE) |
| v4l2_info(&jpeg->v4l2_dev, |
| "encoder device registered as /dev/video%d (%d,%d)\n", |
| jpeg->dec_vdev->num, VIDEO_MAJOR, |
| jpeg->dec_vdev->minor); |
| else |
| v4l2_info(&jpeg->v4l2_dev, |
| "decoder device registered as /dev/video%d (%d,%d)\n", |
| jpeg->dec_vdev->num, VIDEO_MAJOR, |
| jpeg->dec_vdev->minor); |
| |
| platform_set_drvdata(pdev, jpeg); |
| pm_runtime_enable(dev); |
| return 0; |
| |
| err_vdev_register: |
| video_device_release(jpeg->dec_vdev); |
| |
| err_vdev_alloc: |
| v4l2_m2m_release(jpeg->m2m_dev); |
| |
| err_m2m: |
| v4l2_device_unregister(&jpeg->v4l2_dev); |
| |
| err_register: |
| err_irq: |
| err_clk: |
| return ret; |
| } |
| |
| #ifdef CONFIG_PM |
| static int mxc_jpeg_runtime_resume(struct device *dev) |
| { |
| struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev); |
| int ret; |
| |
| ret = clk_prepare_enable(jpeg->clk_ipg); |
| if (ret < 0) { |
| dev_err(dev, "failed to enable clock: ipg\n"); |
| goto err_clk; |
| } |
| |
| ret = clk_prepare_enable(jpeg->clk_per); |
| if (ret < 0) { |
| dev_err(dev, "failed to enable clock: per\n"); |
| goto err_clk; |
| } |
| |
| return 0; |
| |
| err_clk: |
| return ret; |
| } |
| |
| static int mxc_jpeg_runtime_suspend(struct device *dev) |
| { |
| struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev); |
| |
| clk_disable_unprepare(jpeg->clk_ipg); |
| clk_disable_unprepare(jpeg->clk_per); |
| |
| return 0; |
| } |
| #endif |
| |
| static const struct dev_pm_ops mxc_jpeg_pm_ops = { |
| SET_RUNTIME_PM_OPS(mxc_jpeg_runtime_suspend, |
| mxc_jpeg_runtime_resume, NULL) |
| }; |
| |
| static int mxc_jpeg_remove(struct platform_device *pdev) |
| { |
| struct mxc_jpeg_dev *jpeg = platform_get_drvdata(pdev); |
| |
| pm_runtime_disable(&pdev->dev); |
| video_unregister_device(jpeg->dec_vdev); |
| video_device_release(jpeg->dec_vdev); |
| v4l2_m2m_release(jpeg->m2m_dev); |
| v4l2_device_unregister(&jpeg->v4l2_dev); |
| return 0; |
| } |
| |
| MODULE_DEVICE_TABLE(of, mxc_jpeg_match); |
| |
| static struct platform_driver mxc_jpeg_driver = { |
| .probe = mxc_jpeg_probe, |
| .remove = mxc_jpeg_remove, |
| .driver = { |
| .name = "mxc-jpeg", |
| .of_match_table = mxc_jpeg_match, |
| .pm = &mxc_jpeg_pm_ops, |
| }, |
| }; |
| module_platform_driver(mxc_jpeg_driver); |
| MODULE_LICENSE("GPL v2"); |
| |