From patchwork Sun Oct 8 08:51:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jack Zhu X-Patchwork-Id: 731655 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B533848A for ; Sun, 8 Oct 2023 08:52:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15A59CA; Sun, 8 Oct 2023 01:52:04 -0700 (PDT) Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 9A4AB24E296; Sun, 8 Oct 2023 16:52:02 +0800 (CST) Received: from EXMBX073.cuchost.com (172.16.6.83) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Sun, 8 Oct 2023 16:52:00 +0800 Received: from xiaofei.localdomain (180.164.60.184) by EXMBX073.cuchost.com (172.16.6.83) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Sun, 8 Oct 2023 16:52:00 +0800 From: Jack Zhu To: Mauro Carvalho Chehab , Robert Foss , Todor Tomov , , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , Greg Kroah-Hartman , Philipp Zabel , Laurent Pinchart , Hans Verkuil CC: , , , , , Subject: [PATCH v10 6/8] media: staging: media: starfive: camss: Add capture driver Date: Sun, 8 Oct 2023 16:51:52 +0800 Message-ID: <20231008085154.6757-7-jack.zhu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231008085154.6757-1-jack.zhu@starfivetech.com> References: <20231008085154.6757-1-jack.zhu@starfivetech.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [180.164.60.184] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX073.cuchost.com (172.16.6.83) X-YovoleRuleAgent: yovoleflag X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Add capture driver for StarFive Camera Subsystem. It contains two video devices: capture_yuv and capture_raw. Signed-off-by: Jack Zhu --- drivers/staging/media/starfive/camss/Makefile | 1 + .../staging/media/starfive/camss/stf-camss.h | 2 + .../media/starfive/camss/stf-capture.c | 603 ++++++++++++++++++ .../media/starfive/camss/stf-capture.h | 87 +++ 4 files changed, 693 insertions(+) create mode 100644 drivers/staging/media/starfive/camss/stf-capture.c create mode 100644 drivers/staging/media/starfive/camss/stf-capture.h diff --git a/drivers/staging/media/starfive/camss/Makefile b/drivers/staging/media/starfive/camss/Makefile index 97e1522b21ae..005790202e7b 100644 --- a/drivers/staging/media/starfive/camss/Makefile +++ b/drivers/staging/media/starfive/camss/Makefile @@ -5,6 +5,7 @@ starfive-camss-objs += \ stf-camss.o \ + stf-capture.o \ stf-isp.o \ stf-isp-hw-ops.o \ stf-video.o diff --git a/drivers/staging/media/starfive/camss/stf-camss.h b/drivers/staging/media/starfive/camss/stf-camss.h index c7b0a34cd29b..e2b0cfb437bd 100644 --- a/drivers/staging/media/starfive/camss/stf-camss.h +++ b/drivers/staging/media/starfive/camss/stf-camss.h @@ -19,6 +19,7 @@ #include #include "stf-isp.h" +#include "stf-capture.h" enum stf_port_num { STF_PORT_DVP = 0, @@ -52,6 +53,7 @@ struct stfcamss { struct media_pipeline pipe; struct device *dev; struct stf_isp_dev isp_dev; + struct stf_capture captures[STF_CAPTURE_NUM]; struct v4l2_async_notifier notifier; void __iomem *syscon_base; void __iomem *isp_base; diff --git a/drivers/staging/media/starfive/camss/stf-capture.c b/drivers/staging/media/starfive/camss/stf-capture.c new file mode 100644 index 000000000000..70c24b050a1b --- /dev/null +++ b/drivers/staging/media/starfive/camss/stf-capture.c @@ -0,0 +1,603 @@ +// 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 = 10, + }, + { + .code = MEDIA_BUS_FMT_SGRBG10_1X10, + .pixelformat = V4L2_PIX_FMT_SGRBG10, + .planes = 1, + .vsub = { 1 }, + .bpp = 10, + }, + { + .code = MEDIA_BUS_FMT_SGBRG10_1X10, + .pixelformat = V4L2_PIX_FMT_SGBRG10, + .planes = 1, + .vsub = { 1 }, + .bpp = 10, + }, + { + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .pixelformat = V4L2_PIX_FMT_SBGGR10, + .planes = 1, + .vsub = { 1 }, + .bpp = 10, + }, +}; + +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; +} diff --git a/drivers/staging/media/starfive/camss/stf-capture.h b/drivers/staging/media/starfive/camss/stf-capture.h new file mode 100644 index 000000000000..4a6c8f9b779b --- /dev/null +++ b/drivers/staging/media/starfive/camss/stf-capture.h @@ -0,0 +1,87 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * stf_capture.h + * + * Starfive Camera Subsystem driver + * + * Copyright (C) 2021-2023 StarFive Technology Co., Ltd. + */ + +#ifndef STF_CAPTURE_H +#define STF_CAPTURE_H + +#include "stf-video.h" + +#define VIN_CHANNEL_SEL_EN 0x14 +#define VIN_START_ADDR_N 0x18 +#define VIN_INRT_PIX_CFG 0x1c +#define VIN_START_ADDR_O 0x20 +#define VIN_CFG_REG 0x24 + +#define U0_VIN_CNFG_AXI_DVP_EN BIT(2) + +#define U0_VIN_CHANNEL_SEL_MASK GENMASK(3, 0) +#define U0_VIN_AXIWR0_EN BIT(4) +#define CHANNEL(x) ((x) << 0) + +#define U0_VIN_INTR_CLEAN BIT(0) +#define U0_VIN_INTR_M BIT(1) +#define U0_VIN_PIX_CNT_END_MASK GENMASK(12, 2) +#define U0_VIN_PIX_CT_MASK GENMASK(14, 13) +#define U0_VIN_PIXEL_HEIGH_BIT_SEL_MAKS GENMASK(16, 15) + +#define PIX_CNT_END(x) ((x) << 2) +#define PIX_CT(x) ((x) << 13) +#define PIXEL_HEIGH_BIT_SEL(x) ((x) << 15) + +#define U0_VIN_CNFG_DVP_HS_POS BIT(1) +#define U0_VIN_CNFG_DVP_SWAP_EN BIT(2) +#define U0_VIN_CNFG_DVP_VS_POS BIT(3) +#define U0_VIN_CNFG_GEN_EN_AXIRD BIT(4) +#define U0_VIN_CNFG_ISP_DVP_EN0 BIT(5) +#define U0_VIN_MIPI_BYTE_EN_ISP0(n) ((n) << 6) +#define U0_VIN_MIPI_CHANNEL_SEL0(n) ((n) << 8) +#define U0_VIN_P_I_MIPI_HAEDER_EN0(n) ((n) << 12) +#define U0_VIN_PIX_NUM(n) ((n) << 13) +#define U0_VIN_MIPI_BYTE_EN_ISP0_MASK GENMASK(7, 6) +#define U0_VIN_MIPI_CHANNEL_SEL0_MASK GENMASK(11, 8) +#define U0_VIN_P_I_MIPI_HAEDER_EN0_MASK BIT(12) +#define U0_VIN_PIX_NUM_MASK GENMASK(16, 13) + +enum stf_v_state { + STF_OUTPUT_OFF, + STF_OUTPUT_RESERVED, + STF_OUTPUT_SINGLE, + STF_OUTPUT_CONTINUOUS, + STF_OUTPUT_IDLE, + STF_OUTPUT_STOPPING +}; + +struct stf_v_buf { + int active_buf; + struct stfcamss_buffer *buf[2]; + struct stfcamss_buffer *last_buffer; + struct list_head pending_bufs; + struct list_head ready_bufs; + enum stf_v_state state; + unsigned int sequence; + /* protects the above member variables */ + spinlock_t lock; + atomic_t frame_skip; +}; + +struct stf_capture { + struct stfcamss_video video; + struct stf_v_buf buffers; + enum stf_capture_type type; +}; + +irqreturn_t stf_wr_irq_handler(int irq, void *priv); +irqreturn_t stf_isp_irq_handler(int irq, void *priv); +irqreturn_t stf_line_irq_handler(int irq, void *priv); +int stf_capture_register(struct stfcamss *stfcamss, + struct v4l2_device *v4l2_dev); +void stf_capture_unregister(struct stfcamss *stfcamss); + +#endif +