Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Jack Zhu | 2943 | 99.86% | 2 | 66.67% |
Changhuang Liang | 4 | 0.14% | 1 | 33.33% |
Total | 2947 | 3 |
// SPDX-License-Identifier: GPL-2.0 /* * stf_capture.c * * StarFive Camera Subsystem - capture device * * Copyright (C) 2021-2023 StarFive Technology Co., Ltd. */ #include "stf-camss.h" static const char * const stf_cap_names[] = { "capture_raw", "capture_yuv", }; static const struct stfcamss_format_info stf_wr_fmts[] = { { .code = MEDIA_BUS_FMT_SRGGB10_1X10, .pixelformat = V4L2_PIX_FMT_SRGGB10, .planes = 1, .vsub = { 1 }, .bpp = 16, }, { .code = MEDIA_BUS_FMT_SGRBG10_1X10, .pixelformat = V4L2_PIX_FMT_SGRBG10, .planes = 1, .vsub = { 1 }, .bpp = 16, }, { .code = MEDIA_BUS_FMT_SGBRG10_1X10, .pixelformat = V4L2_PIX_FMT_SGBRG10, .planes = 1, .vsub = { 1 }, .bpp = 16, }, { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .pixelformat = V4L2_PIX_FMT_SBGGR10, .planes = 1, .vsub = { 1 }, .bpp = 16, }, }; static const struct stfcamss_format_info stf_isp_fmts[] = { { .code = MEDIA_BUS_FMT_YUYV8_1_5X8, .pixelformat = V4L2_PIX_FMT_NV12, .planes = 2, .vsub = { 1, 2 }, .bpp = 8, }, }; static inline struct stf_capture *to_stf_capture(struct stfcamss_video *video) { return container_of(video, struct stf_capture, video); } static void stf_set_raw_addr(struct stfcamss *stfcamss, dma_addr_t addr) { stf_syscon_reg_write(stfcamss, VIN_START_ADDR_O, (long)addr); stf_syscon_reg_write(stfcamss, VIN_START_ADDR_N, (long)addr); } static void stf_set_yuv_addr(struct stfcamss *stfcamss, dma_addr_t y_addr, dma_addr_t uv_addr) { stf_isp_reg_write(stfcamss, ISP_REG_Y_PLANE_START_ADDR, y_addr); stf_isp_reg_write(stfcamss, ISP_REG_UV_PLANE_START_ADDR, uv_addr); } static void stf_init_addrs(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *output = &cap->buffers; dma_addr_t addr0, addr1; output->active_buf = 0; if (!output->buf[0]) return; addr0 = output->buf[0]->addr[0]; addr1 = output->buf[0]->addr[1]; if (cap->type == STF_CAPTURE_RAW) stf_set_raw_addr(video->stfcamss, addr0); else if (cap->type == STF_CAPTURE_YUV) stf_set_yuv_addr(video->stfcamss, addr0, addr1); } static struct stfcamss_buffer *stf_buf_get_pending(struct stf_v_buf *output) { struct stfcamss_buffer *buffer = NULL; if (!list_empty(&output->pending_bufs)) { buffer = list_first_entry(&output->pending_bufs, struct stfcamss_buffer, queue); list_del(&buffer->queue); } return buffer; } static void stf_cap_s_cfg(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *output = &cap->buffers; unsigned long flags; spin_lock_irqsave(&output->lock, flags); output->state = STF_OUTPUT_IDLE; output->buf[0] = stf_buf_get_pending(output); if (!output->buf[0] && output->buf[1]) { output->buf[0] = output->buf[1]; output->buf[1] = NULL; } if (output->buf[0]) output->state = STF_OUTPUT_SINGLE; output->sequence = 0; stf_init_addrs(video); spin_unlock_irqrestore(&output->lock, flags); } static int stf_cap_s_cleanup(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *output = &cap->buffers; unsigned long flags; spin_lock_irqsave(&output->lock, flags); output->state = STF_OUTPUT_OFF; spin_unlock_irqrestore(&output->lock, flags); return 0; } static void stf_wr_data_en(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stfcamss *stfcamss = cap->video.stfcamss; stf_syscon_reg_set_bit(stfcamss, VIN_CHANNEL_SEL_EN, U0_VIN_AXIWR0_EN); } static void stf_wr_irq_enable(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stfcamss *stfcamss = cap->video.stfcamss; stf_syscon_reg_clear_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_M); } static void stf_wr_irq_disable(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stfcamss *stfcamss = cap->video.stfcamss; stf_syscon_reg_set_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_CLEAN); stf_syscon_reg_clear_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_CLEAN); stf_syscon_reg_set_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_M); } static void stf_channel_set(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); struct stfcamss *stfcamss = cap->video.stfcamss; u32 val; if (cap->type == STF_CAPTURE_RAW) { val = stf_syscon_reg_read(stfcamss, VIN_CHANNEL_SEL_EN); val &= ~U0_VIN_CHANNEL_SEL_MASK; val |= CHANNEL(0); stf_syscon_reg_write(stfcamss, VIN_CHANNEL_SEL_EN, val); val = stf_syscon_reg_read(stfcamss, VIN_INRT_PIX_CFG); val &= ~U0_VIN_PIX_CT_MASK; val |= PIX_CT(1); val &= ~U0_VIN_PIXEL_HEIGH_BIT_SEL_MAKS; val |= PIXEL_HEIGH_BIT_SEL(0); val &= ~U0_VIN_PIX_CNT_END_MASK; val |= PIX_CNT_END(IMAGE_MAX_WIDTH / 4 - 1); stf_syscon_reg_write(stfcamss, VIN_INRT_PIX_CFG, val); } else if (cap->type == STF_CAPTURE_YUV) { val = stf_syscon_reg_read(stfcamss, VIN_CFG_REG); val &= ~U0_VIN_MIPI_BYTE_EN_ISP0_MASK; val |= U0_VIN_MIPI_BYTE_EN_ISP0(0); val &= ~U0_VIN_MIPI_CHANNEL_SEL0_MASK; val |= U0_VIN_MIPI_CHANNEL_SEL0(0); val &= ~U0_VIN_PIX_NUM_MASK; val |= U0_VIN_PIX_NUM(0); val &= ~U0_VIN_P_I_MIPI_HAEDER_EN0_MASK; val |= U0_VIN_P_I_MIPI_HAEDER_EN0(1); stf_syscon_reg_write(stfcamss, VIN_CFG_REG, val); } } static void stf_capture_start(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); stf_channel_set(video); if (cap->type == STF_CAPTURE_RAW) { stf_wr_irq_enable(video); stf_wr_data_en(video); } stf_cap_s_cfg(video); } static void stf_capture_stop(struct stfcamss_video *video) { struct stf_capture *cap = to_stf_capture(video); if (cap->type == STF_CAPTURE_RAW) stf_wr_irq_disable(video); stf_cap_s_cleanup(video); } static void stf_capture_init(struct stfcamss *stfcamss, struct stf_capture *cap) { cap->buffers.state = STF_OUTPUT_OFF; cap->buffers.buf[0] = NULL; cap->buffers.buf[1] = NULL; cap->buffers.active_buf = 0; atomic_set(&cap->buffers.frame_skip, 4); INIT_LIST_HEAD(&cap->buffers.pending_bufs); INIT_LIST_HEAD(&cap->buffers.ready_bufs); spin_lock_init(&cap->buffers.lock); cap->video.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; cap->video.stfcamss = stfcamss; cap->video.bpl_alignment = 16 * 8; if (cap->type == STF_CAPTURE_RAW) { cap->video.formats = stf_wr_fmts; cap->video.nformats = ARRAY_SIZE(stf_wr_fmts); cap->video.bpl_alignment = 8; } else if (cap->type == STF_CAPTURE_YUV) { cap->video.formats = stf_isp_fmts; cap->video.nformats = ARRAY_SIZE(stf_isp_fmts); cap->video.bpl_alignment = 1; } } static void stf_buf_add_ready(struct stf_v_buf *output, struct stfcamss_buffer *buffer) { INIT_LIST_HEAD(&buffer->queue); list_add_tail(&buffer->queue, &output->ready_bufs); } static struct stfcamss_buffer *stf_buf_get_ready(struct stf_v_buf *output) { struct stfcamss_buffer *buffer = NULL; if (!list_empty(&output->ready_bufs)) { buffer = list_first_entry(&output->ready_bufs, struct stfcamss_buffer, queue); list_del(&buffer->queue); } return buffer; } static void stf_buf_add_pending(struct stf_v_buf *output, struct stfcamss_buffer *buffer) { INIT_LIST_HEAD(&buffer->queue); list_add_tail(&buffer->queue, &output->pending_bufs); } static void stf_buf_update_on_last(struct stf_v_buf *output) { switch (output->state) { case STF_OUTPUT_CONTINUOUS: output->state = STF_OUTPUT_SINGLE; output->active_buf = !output->active_buf; break; case STF_OUTPUT_SINGLE: output->state = STF_OUTPUT_STOPPING; break; default: break; } } static void stf_buf_update_on_next(struct stf_v_buf *output) { switch (output->state) { case STF_OUTPUT_CONTINUOUS: output->active_buf = !output->active_buf; break; case STF_OUTPUT_SINGLE: default: break; } } static void stf_buf_update_on_new(struct stfcamss_video *video, struct stfcamss_buffer *new_buf) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *output = &cap->buffers; switch (output->state) { case STF_OUTPUT_SINGLE: stf_buf_add_pending(output, new_buf); break; case STF_OUTPUT_IDLE: if (!output->buf[0]) { output->buf[0] = new_buf; stf_init_addrs(video); output->state = STF_OUTPUT_SINGLE; } else { stf_buf_add_pending(output, new_buf); } break; case STF_OUTPUT_STOPPING: if (output->last_buffer) { output->buf[output->active_buf] = output->last_buffer; output->last_buffer = NULL; } output->state = STF_OUTPUT_SINGLE; stf_buf_add_pending(output, new_buf); break; case STF_OUTPUT_CONTINUOUS: default: stf_buf_add_pending(output, new_buf); break; } } static void stf_buf_flush(struct stf_v_buf *output, enum vb2_buffer_state state) { struct stfcamss_buffer *buf; struct stfcamss_buffer *t; list_for_each_entry_safe(buf, t, &output->pending_bufs, queue) { vb2_buffer_done(&buf->vb.vb2_buf, state); list_del(&buf->queue); } list_for_each_entry_safe(buf, t, &output->ready_bufs, queue) { vb2_buffer_done(&buf->vb.vb2_buf, state); list_del(&buf->queue); } } static void stf_buf_done(struct stf_v_buf *output) { struct stfcamss_buffer *ready_buf; u64 ts = ktime_get_ns(); unsigned long flags; if (output->state == STF_OUTPUT_OFF || output->state == STF_OUTPUT_RESERVED) return; spin_lock_irqsave(&output->lock, flags); while ((ready_buf = stf_buf_get_ready(output))) { ready_buf->vb.vb2_buf.timestamp = ts; ready_buf->vb.sequence = output->sequence++; vb2_buffer_done(&ready_buf->vb.vb2_buf, VB2_BUF_STATE_DONE); } spin_unlock_irqrestore(&output->lock, flags); } static void stf_change_buffer(struct stf_v_buf *output) { struct stf_capture *cap = container_of(output, struct stf_capture, buffers); struct stfcamss *stfcamss = cap->video.stfcamss; struct stfcamss_buffer *ready_buf; dma_addr_t *new_addr; unsigned long flags; u32 active_index; if (output->state == STF_OUTPUT_OFF || output->state == STF_OUTPUT_STOPPING || output->state == STF_OUTPUT_RESERVED || output->state == STF_OUTPUT_IDLE) return; spin_lock_irqsave(&output->lock, flags); active_index = output->active_buf; ready_buf = output->buf[active_index]; if (!ready_buf) { dev_dbg(stfcamss->dev, "missing ready buf %d %d.\n", active_index, output->state); active_index = !active_index; ready_buf = output->buf[active_index]; if (!ready_buf) { dev_dbg(stfcamss->dev, "missing ready buf2 %d %d.\n", active_index, output->state); goto out_unlock; } } /* Get next buffer */ output->buf[active_index] = stf_buf_get_pending(output); if (!output->buf[active_index]) { new_addr = ready_buf->addr; stf_buf_update_on_last(output); } else { new_addr = output->buf[active_index]->addr; stf_buf_update_on_next(output); } if (output->state == STF_OUTPUT_STOPPING) { output->last_buffer = ready_buf; } else { if (cap->type == STF_CAPTURE_RAW) stf_set_raw_addr(stfcamss, new_addr[0]); else if (cap->type == STF_CAPTURE_YUV) stf_set_yuv_addr(stfcamss, new_addr[0], new_addr[1]); stf_buf_add_ready(output, ready_buf); } out_unlock: spin_unlock_irqrestore(&output->lock, flags); } irqreturn_t stf_wr_irq_handler(int irq, void *priv) { struct stfcamss *stfcamss = priv; struct stf_capture *cap = &stfcamss->captures[STF_CAPTURE_RAW]; if (atomic_dec_if_positive(&cap->buffers.frame_skip) < 0) { stf_change_buffer(&cap->buffers); stf_buf_done(&cap->buffers); } stf_syscon_reg_set_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_CLEAN); stf_syscon_reg_clear_bit(stfcamss, VIN_INRT_PIX_CFG, U0_VIN_INTR_CLEAN); return IRQ_HANDLED; } irqreturn_t stf_isp_irq_handler(int irq, void *priv) { struct stfcamss *stfcamss = priv; struct stf_capture *cap = &stfcamss->captures[STF_CAPTURE_YUV]; u32 status; status = stf_isp_reg_read(stfcamss, ISP_REG_ISP_CTRL_0); if (status & ISPC_ISP) { if (status & ISPC_ENUO) stf_buf_done(&cap->buffers); stf_isp_reg_write(stfcamss, ISP_REG_ISP_CTRL_0, (status & ~ISPC_INT_ALL_MASK) | ISPC_ISP | ISPC_CSI | ISPC_SC); } return IRQ_HANDLED; } irqreturn_t stf_line_irq_handler(int irq, void *priv) { struct stfcamss *stfcamss = priv; struct stf_capture *cap = &stfcamss->captures[STF_CAPTURE_YUV]; u32 status; status = stf_isp_reg_read(stfcamss, ISP_REG_ISP_CTRL_0); if (status & ISPC_LINE) { if (atomic_dec_if_positive(&cap->buffers.frame_skip) < 0) { if ((status & ISPC_ENUO)) stf_change_buffer(&cap->buffers); } stf_isp_reg_set_bit(stfcamss, ISP_REG_CSIINTS, CSI_INTS_MASK, CSI_INTS(0x3)); stf_isp_reg_set_bit(stfcamss, ISP_REG_IESHD, SHAD_UP_M | SHAD_UP_EN, 0x3); stf_isp_reg_write(stfcamss, ISP_REG_ISP_CTRL_0, (status & ~ISPC_INT_ALL_MASK) | ISPC_LINE); } return IRQ_HANDLED; } static int stf_queue_buffer(struct stfcamss_video *video, struct stfcamss_buffer *buf) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *v_bufs = &cap->buffers; unsigned long flags; spin_lock_irqsave(&v_bufs->lock, flags); stf_buf_update_on_new(video, buf); spin_unlock_irqrestore(&v_bufs->lock, flags); return 0; } static int stf_flush_buffers(struct stfcamss_video *video, enum vb2_buffer_state state) { struct stf_capture *cap = to_stf_capture(video); struct stf_v_buf *v_bufs = &cap->buffers; unsigned long flags; unsigned int i; spin_lock_irqsave(&v_bufs->lock, flags); stf_buf_flush(v_bufs, state); for (i = 0; i < ARRAY_SIZE(v_bufs->buf); i++) { if (v_bufs->buf[i]) vb2_buffer_done(&v_bufs->buf[i]->vb.vb2_buf, state); v_bufs->buf[i] = NULL; } if (v_bufs->last_buffer) { vb2_buffer_done(&v_bufs->last_buffer->vb.vb2_buf, state); v_bufs->last_buffer = NULL; } spin_unlock_irqrestore(&v_bufs->lock, flags); return 0; } static const struct stfcamss_video_ops stf_capture_ops = { .queue_buffer = stf_queue_buffer, .flush_buffers = stf_flush_buffers, .start_streaming = stf_capture_start, .stop_streaming = stf_capture_stop, }; static void stf_capture_unregister_one(struct stf_capture *cap) { if (!video_is_registered(&cap->video.vdev)) return; media_entity_cleanup(&cap->video.vdev.entity); vb2_video_unregister_device(&cap->video.vdev); } void stf_capture_unregister(struct stfcamss *stfcamss) { struct stf_capture *cap_raw = &stfcamss->captures[STF_CAPTURE_RAW]; struct stf_capture *cap_yuv = &stfcamss->captures[STF_CAPTURE_YUV]; stf_capture_unregister_one(cap_raw); stf_capture_unregister_one(cap_yuv); } int stf_capture_register(struct stfcamss *stfcamss, struct v4l2_device *v4l2_dev) { unsigned int i; int ret; for (i = 0; i < ARRAY_SIZE(stfcamss->captures); i++) { struct stf_capture *capture = &stfcamss->captures[i]; capture->type = i; capture->video.ops = &stf_capture_ops; stf_capture_init(stfcamss, capture); ret = stf_video_register(&capture->video, v4l2_dev, stf_cap_names[i]); if (ret < 0) { dev_err(stfcamss->dev, "Failed to register video node: %d\n", ret); stf_capture_unregister(stfcamss); return ret; } } return 0; }
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