[RFC, V2, 10/11] media: platform: Add Mediatek ISP P1 SCP communication

Jungo Lin
2019-05-10T01:58:06Z

This patch adds communication with the co-processor on the SoC
through the SCP driver. It supports bi-directional commands
to exchange data and perform command flow control function.

Signed-off-by: Jungo Lin <jungo.lin@mediatek.com>
---
This patch dependents on "Add support for mt8183 SCP"[1].

[1] https://patchwork.kernel.org/cover/10872547/
---
.../platform/mtk-isp/isp_50/cam/mtk_cam-scp.c | 481 ++++++++++++++++++
.../platform/mtk-isp/isp_50/cam/mtk_cam-scp.h | 207 ++++++++
2 files changed, 688 insertions(+)
create mode 100644 drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.c
create mode 100644 drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.h

diff --git a/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.c b/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.c
new file mode 100644
index 000000000000..cd10a1c43e0b
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.c
@@ -0,0 +1,481 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Seraph Huang <seraph.huang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/atomic.h>
+#include <linux/kthread.h>
+#include <linux/platform_data/mtk_scp.h>
+#include <linux/remoteproc.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+
+#include "mtk_cam.h"
+
+static int isp_composer_dma_sg_init(struct mtk_isp_p1_ctx *isp_ctx)
+{
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(isp_ctx);
+ struct device *dev = &p1_dev->pdev->dev;
+ u32 size, size_align;
+ struct sg_table *sgt;
+ struct page **pages;
+ unsigned int n_pages, i;
+ int ret;
+
+ isp_ctx->scp_mem_pa = scp_get_reserve_mem_phys(SCP_ISP_MEM_ID);
+ size = scp_get_reserve_mem_size(SCP_ISP_MEM_ID);
+
+ dev_dbg(dev, "scp mem addr:%pad size:%u MiB\n", &isp_ctx->scp_mem_pa,
+ (size / SZ_1M));
+
+ /* get iova address */
+ sgt = &isp_ctx->sgtable;
+ sg_alloc_table(sgt, 1, GFP_KERNEL);
+
+ size_align = PAGE_ALIGN(size);
+ n_pages = size_align >> PAGE_SHIFT;
+
+ pages = kmalloc_array(n_pages, sizeof(struct page *), GFP_KERNEL);
+ if (!pages)
+ goto fail_pages_alloc;
+
+ for (i = 0; i < n_pages; i++)
+ pages[i] = phys_to_page(isp_ctx->scp_mem_pa + i * PAGE_SIZE);
+
+ ret = sg_alloc_table_from_pages(sgt, pages, n_pages,
+ 0, size_align, GFP_KERNEL);
+ if (ret) {
+ dev_err(dev, "failed to allocate sg table:%d\n", ret);
+ goto fail_table_alloc;
+ }
+ sgt->nents = dma_map_sg_attrs(dev, sgt->sgl, sgt->orig_nents,
+ DMA_BIDIRECTIONAL,
+ DMA_ATTR_SKIP_CPU_SYNC);
+ if (!sgt->nents) {
+ dev_err(dev, "failed to dma sg map\n");
+ goto fail_map;
+ }
+
+ isp_ctx->scp_mem_iova = sg_dma_address(sgt->sgl);
+
+ return 0;
+
+fail_map:
+ sg_free_table(sgt);
+fail_table_alloc:
+ while (n_pages--)
+ __free_page(pages[n_pages]);
+ kfree(pages);
+fail_pages_alloc:
+ return -ENOMEM;
+}
+
+static void isp_composer_deinit(struct mtk_isp_p1_ctx *isp_ctx)
+{
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(isp_ctx);
+ struct mtk_isp_queue_work *ipi_job, *tmp_ipi_job;
+
+ list_for_each_entry_safe(ipi_job, tmp_ipi_job,
+ &isp_ctx->composer_txlist.queue,
+ list_entry) {
+ list_del(&ipi_job->list_entry);
+ kfree(ipi_job);
+ atomic_dec(&isp_ctx->composer_txlist.queue_cnt);
+ }
+
+ atomic_set(&isp_ctx->ipi_occupied, 0);
+ atomic_set(&isp_ctx->composing_frame, 0);
+ mutex_destroy(&isp_ctx->composer_tx_lock);
+
+ dma_unmap_sg_attrs(&p1_dev->pdev->dev, isp_ctx->sgtable.sgl,
+ isp_ctx->sgtable.orig_nents,
+ DMA_BIDIRECTIONAL, DMA_ATTR_SKIP_CPU_SYNC);
+ sg_free_table(&isp_ctx->sgtable);
+
+ if (!IS_ERR(isp_ctx->composer_tx_thread.thread)) {
+ kthread_stop(isp_ctx->composer_tx_thread.thread);
+ wake_up_interruptible(&isp_ctx->composer_tx_thread.wq);
+ isp_ctx->composer_tx_thread.thread = NULL;
+ }
+
+ isp_ctx->composer_deinit_donecb(isp_ctx);
+}
+
+/*
+ * Two kinds of flow control in isp_composer_tx_work.
+ *
+ * Case 1: IPI commands flow control. The maximum number of command queues is 3.
+ * There are two types of IPI commands (SCP_ISP_CMD/SCP_ISP_FRAME) in P1 driver.
+ * It is controlled by ipi_occupied.
+ * The priority of SCP_ISP_CMD is higher than SCP_ISP_FRAME.
+ *
+ * Case 2: Frame buffers flow control. The maximum number of frame buffers is 3.
+ * It is controlled by composing_frame.
+ * Frame buffer is sent by SCP_ISP_FRAME command.
+ */
+static int isp_composer_tx_work(void *data)
+{
+ struct mtk_isp_p1_ctx *isp_ctx = (struct mtk_isp_p1_ctx *)data;
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(isp_ctx);
+ struct device *dev = &p1_dev->pdev->dev;
+ struct mtk_isp_queue_work *isp_composer_work, *tmp_ipi_job;
+ struct isp_queue *composer_txlist = &isp_ctx->composer_txlist;
+ int ret;
+
+ while (1) {
+ ret = wait_event_interruptible
+ (isp_ctx->composer_tx_thread.wq,
+ (atomic_read(&composer_txlist->queue_cnt) > 0 &&
+ atomic_read(&isp_ctx->ipi_occupied)
+ < ISP_COMPOSING_MAX_NUM &&
+ atomic_read(&isp_ctx->composing_frame)
+ < ISP_FRAME_COMPOSING_MAX_NUM) ||
+ atomic_read(&isp_ctx->cmd_queued) > 0 &&
+ atomic_read(&isp_ctx->ipi_occupied)
+ < ISP_COMPOSING_MAX_NUM ||
+ kthread_should_stop());
+
+ if (kthread_should_stop())
+ break;
+
+ if (ret == ERESTARTSYS) {
+ dev_err(dev, "interrupted by a signal!\n");
+ continue;
+ }
+
+ spin_lock(&composer_txlist->lock);
+ if (atomic_read(&isp_ctx->cmd_queued) > 0) {
+ list_for_each_entry_safe(isp_composer_work, tmp_ipi_job,
+ &composer_txlist->queue,
+ list_entry) {
+ if (isp_composer_work->type == SCP_ISP_CMD) {
+ dev_dbg(dev, "Found a cmd\n");
+ break;
+ }
+ }
+ } else {
+ if (atomic_read(&isp_ctx->composing_frame) >=
+ ISP_FRAME_COMPOSING_MAX_NUM) {
+ spin_unlock(&composer_txlist->lock);
+ continue;
+ }
+ isp_composer_work =
+ list_first_entry_or_null
+ (&composer_txlist->queue,
+ struct mtk_isp_queue_work,
+ list_entry);
+ }
+
+ list_del(&isp_composer_work->list_entry);
+ atomic_dec(&composer_txlist->queue_cnt);
+ spin_unlock(&composer_txlist->lock);
+
+ if (isp_composer_work->type == SCP_ISP_CMD) {
+ mutex_lock(&isp_ctx->composer_tx_lock);
+ scp_ipi_send
+ (p1_dev->scp_pdev,
+ SCP_IPI_ISP_CMD,
+ &isp_composer_work->cmd,
+ sizeof(isp_composer_work->cmd),
+ 0);
+ mutex_unlock(&isp_ctx->composer_tx_lock);
+ atomic_dec(&isp_ctx->cmd_queued);
+ atomic_inc(&isp_ctx->ipi_occupied);
+ dev_dbg(dev,
+ "%s cmd id %d sent, %d ipi buf occupied",
+ __func__,
+ isp_composer_work->cmd.cmd_id,
+ atomic_read(&isp_ctx->ipi_occupied));
+ } else if (isp_composer_work->type == SCP_ISP_FRAME) {
+ mutex_lock(&isp_ctx->composer_tx_lock);
+ scp_ipi_send
+ (p1_dev->scp_pdev,
+ SCP_IPI_ISP_FRAME,
+ &isp_composer_work->frameparams,
+ sizeof(isp_composer_work->frameparams),
+ 0);
+ mutex_unlock(&isp_ctx->composer_tx_lock);
+ atomic_inc(&isp_ctx->ipi_occupied);
+ atomic_inc(&isp_ctx->composing_frame);
+ dev_dbg(dev,
+ "%s frame %d sent, %d ipi, %d CQ bufs occupied",
+ __func__,
+ isp_composer_work->frameparams.frame_seq_no,
+ atomic_read(&isp_ctx->ipi_occupied),
+ atomic_read(&isp_ctx->composing_frame));
+ } else {
+ dev_err(dev,
+ "ignore IPI type: %d!\n",
+ isp_composer_work->type);
+ kfree(isp_composer_work);
+ continue;
+ }
+ kfree(isp_composer_work);
+ }
+ return ret;
+}
+
+static int isp_composer_rx_work(void *data)
+{
+ struct mtk_isp_p1_ctx *isp_ctx = (struct mtk_isp_p1_ctx *)data;
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(data);
+ struct device *dev = &p1_dev->pdev->dev;
+ struct mtk_isp_scp_p1_cmd ipi_msg;
+ int ret;
+ unsigned int ipi_queue_occupied, i;
+ unsigned long flags;
+ atomic_t *evts_end = &isp_ctx->composer_evts_end;
+ atomic_t *evts_start = &isp_ctx->composer_evts_start;
+ u8 ack_cmd_id;
+
+ while (1) {
+ ret = wait_event_interruptible(isp_ctx->composer_rx_thread.wq,
+ (atomic_read(evts_end) !=
+ atomic_read(evts_start)) ||
+ kthread_should_stop());
+
+ if (kthread_should_stop())
+ break;
+
+ if (ret == ERESTARTSYS) {
+ dev_err(dev, "interrupted by a signal!\n");
+ continue;
+ }
+
+ spin_lock_irqsave(&isp_ctx->composer_evts_lock, flags);
+ i = atomic_read(evts_start);
+ memcpy(&ipi_msg, &isp_ctx->composer_evts[i],
+ sizeof(struct mtk_isp_scp_p1_cmd));
+ atomic_set(evts_start, ++i & 0x3);
+ spin_unlock_irqrestore(&isp_ctx->composer_evts_lock, flags);
+
+ switch (ipi_msg.cmd_id) {
+ case ISP_CMD_ACK:
+ ipi_queue_occupied =
+ atomic_dec_return(&isp_ctx->ipi_occupied);
+ if (ipi_queue_occupied < ISP_COMPOSING_MAX_NUM)
+ wake_up_interruptible
+ (&isp_ctx->composer_tx_thread.wq);
+
+ ack_cmd_id = ipi_msg.ack_info.cmd_id;
+ if (ack_cmd_id == ISP_CMD_FRAME_ACK) {
+ dev_dbg(dev,
+ "%s frame %d ack\n",
+ __func__,
+ ipi_msg.ack_info.frame_seq_no);
+ atomic_set(&isp_ctx->composed_frame_id,
+ ipi_msg.ack_info.frame_seq_no);
+ } else {
+ dev_dbg(dev, "%s cmd id: %d",
+ __func__,
+ ack_cmd_id);
+ if (ack_cmd_id == ISP_CMD_DEINIT) {
+ isp_composer_deinit(isp_ctx);
+ isp_ctx->composer_rx_thread.thread =
+ NULL;
+ return -1;
+ }
+ }
+ break;
+ default:
+ break;
+ };
+ }
+ return ret;
+}
+
+static void isp_composer_handler(void *data, unsigned int len, void *priv)
+{
+ struct mtk_isp_p1_ctx *isp_ctx;
+ struct mtk_isp_scp_p1_cmd *ipi_msg_ptr;
+ unsigned long flags;
+ unsigned int i;
+
+ ipi_msg_ptr = (struct mtk_isp_scp_p1_cmd *)data;
+ isp_ctx = (struct mtk_isp_p1_ctx *)priv;
+
+ spin_lock_irqsave(&isp_ctx->composer_evts_lock, flags);
+ i = atomic_read(&isp_ctx->composer_evts_end);
+ memcpy(&isp_ctx->composer_evts[i], data,
+ sizeof(struct mtk_isp_scp_p1_cmd));
+ atomic_set(&isp_ctx->composer_evts_end, ++i & 0x3);
+ spin_unlock_irqrestore(&isp_ctx->composer_evts_lock, flags);
+
+ wake_up_interruptible(&isp_ctx->composer_rx_thread.wq);
+}
+
+int isp_composer_init(struct mtk_isp_p1_ctx *isp_ctx)
+{
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(isp_ctx);
+ struct device *dev = &p1_dev->pdev->dev;
+ int ret;
+
+ ret = scp_ipi_register(p1_dev->scp_pdev,
+ SCP_IPI_ISP_CMD,
+ isp_composer_handler,
+ isp_ctx);
+ if (ret)
+ return ret;
+
+ if (!isp_ctx->composer_tx_thread.thread) {
+ mutex_init(&isp_ctx->composer_tx_lock);
+ init_waitqueue_head(&isp_ctx->composer_tx_thread.wq);
+ INIT_LIST_HEAD(&isp_ctx->composer_txlist.queue);
+ spin_lock_init(&isp_ctx->composer_txlist.lock);
+ isp_ctx->composer_tx_thread.thread =
+ kthread_run(isp_composer_tx_work, (void *)isp_ctx,
+ "isp_composer_tx");
+ if (IS_ERR(isp_ctx->composer_tx_thread.thread)) {
+ dev_err(dev, "unable to start kthread\n");
+ isp_ctx->composer_tx_thread.thread = NULL;
+ return -ENOMEM;
+ }
+ }
+ atomic_set(&isp_ctx->composer_txlist.queue_cnt, 0);
+
+ if (!isp_ctx->composer_rx_thread.thread) {
+ init_waitqueue_head(&isp_ctx->composer_rx_thread.wq);
+ isp_ctx->composer_rx_thread.thread =
+ kthread_run(isp_composer_rx_work, (void *)isp_ctx,
+ "isp_composer_rx");
+ if (IS_ERR(isp_ctx->composer_rx_thread.thread)) {
+ dev_err(dev, "unable to start kthread\n");
+ isp_ctx->composer_rx_thread.thread = NULL;
+ return -ENOMEM;
+ }
+ }
+
+ atomic_set(&isp_ctx->composer_evts_start, 0);
+ atomic_set(&isp_ctx->composer_evts_end, 0);
+ spin_lock_init(&isp_ctx->composer_evts_lock);
+
+ atomic_set(&isp_ctx->ipi_occupied, 0);
+ atomic_set(&isp_ctx->composing_frame, 0);
+ atomic_set(&isp_ctx->cmd_queued, 0);
+
+ return 0;
+}
+
+void isp_composer_enqueue(struct mtk_isp_p1_ctx *isp_ctx,
+ void *data,
+ enum mtk_isp_scp_ipi_type type)
+{
+ struct mtk_isp_queue_work *isp_composer_work;
+ struct isp_p1_device *p1_dev = p1_ctx_to_dev(isp_ctx);
+ struct device *dev = &p1_dev->pdev->dev;
+
+ isp_composer_work = kzalloc(sizeof(*isp_composer_work), GFP_KERNEL);
+ isp_composer_work->type = type;
+ switch (type) {
+ case SCP_ISP_CMD:
+ memcpy(&isp_composer_work->cmd, data,
+ sizeof(isp_composer_work->cmd));
+
+ spin_lock(&isp_ctx->composer_txlist.lock);
+ list_add_tail(&isp_composer_work->list_entry,
+ &isp_ctx->composer_txlist.queue);
+ atomic_inc(&isp_ctx->composer_txlist.queue_cnt);
+ spin_unlock(&isp_ctx->composer_txlist.lock);
+
+ dev_dbg(dev, "Enq ipi cmd id:%d\n",
+ isp_composer_work->cmd.cmd_id);
+ atomic_inc(&isp_ctx->cmd_queued);
+ wake_up_interruptible(&isp_ctx->composer_tx_thread.wq);
+ break;
+ case SCP_ISP_FRAME:
+ memcpy(&isp_composer_work->frameparams, data,
+ sizeof(isp_composer_work->frameparams));
+
+ spin_lock(&isp_ctx->composer_txlist.lock);
+ list_add_tail(&isp_composer_work->list_entry,
+ &isp_ctx->composer_txlist.queue);
+ atomic_inc(&isp_ctx->composer_txlist.queue_cnt);
+ spin_unlock(&isp_ctx->composer_txlist.lock);
+
+ dev_dbg(dev, "Enq ipi frame_num:%d\n",
+ isp_composer_work->frameparams.frame_seq_no);
+ wake_up_interruptible(&isp_ctx->composer_tx_thread.wq);
+ break;
+ default:
+ break;
+ }
+}
+
+int isp_composer_hw_init(struct mtk_isp_p1_ctx *isp_ctx)
+{
+ struct img_buffer frameparam;
+ struct mtk_isp_scp_p1_cmd composer_tx_cmd;
+ int ret;
+
+ ret = isp_composer_dma_sg_init(isp_ctx);
+ if (ret)
+ return ret;
+
+ frameparam.scp_addr = isp_ctx->scp_mem_pa;
+ frameparam.iova = isp_ctx->scp_mem_iova;
+
+ composer_tx_cmd.cmd_id = ISP_CMD_INIT;
+ composer_tx_cmd.frameparam.hw_module = isp_ctx->isp_hw_module;
+ memcpy(&composer_tx_cmd.frameparam.cq_addr, &frameparam,
+ sizeof(struct img_buffer));
+ isp_composer_enqueue(isp_ctx, &composer_tx_cmd, SCP_ISP_CMD);
+
+ return 0;
+}
+
+void isp_composer_meta_config(struct mtk_isp_p1_ctx *isp_ctx,
+ unsigned int dma)
+{
+ struct mtk_isp_scp_p1_cmd composer_tx_cmd;
+
+ memset(&composer_tx_cmd, 0, sizeof(composer_tx_cmd));
+ composer_tx_cmd.cmd_id = ISP_CMD_CONFIG_META;
+ memcpy(&composer_tx_cmd.cfg_meta_out_param, &dma, sizeof(dma));
+ isp_composer_enqueue(isp_ctx, &composer_tx_cmd, SCP_ISP_CMD);
+}
+
+void isp_composer_hw_config(struct mtk_isp_p1_ctx *isp_ctx,
+ struct p1_config_param *config_param)
+{
+ struct mtk_isp_scp_p1_cmd composer_tx_cmd;
+
+ memset(&composer_tx_cmd, 0, sizeof(composer_tx_cmd));
+ composer_tx_cmd.cmd_id = ISP_CMD_CONFIG;
+ memcpy(&composer_tx_cmd.frameparam,
+ config_param,
+ sizeof(*config_param));
+ isp_composer_enqueue(isp_ctx, &composer_tx_cmd, SCP_ISP_CMD);
+}
+
+void isp_composer_stream(struct mtk_isp_p1_ctx *isp_ctx, int on)
+{
+ struct mtk_isp_scp_p1_cmd composer_tx_cmd;
+
+ memset(&composer_tx_cmd, 0, sizeof(composer_tx_cmd));
+ composer_tx_cmd.cmd_id = ISP_CMD_STREAM;
+ memcpy(&composer_tx_cmd.is_stream_on, &on, sizeof(on));
+ isp_composer_enqueue(isp_ctx, &composer_tx_cmd, SCP_ISP_CMD);
+}
+
+void isp_composer_hw_deinit(struct mtk_isp_p1_ctx *isp_ctx,
+ void (*donecb)(void *data))
+{
+ struct mtk_isp_scp_p1_cmd composer_tx_cmd;
+
+ memset(&composer_tx_cmd, 0, sizeof(composer_tx_cmd));
+ composer_tx_cmd.cmd_id = ISP_CMD_DEINIT;
+ isp_ctx->composer_deinit_donecb = donecb;
+ isp_composer_enqueue(isp_ctx, &composer_tx_cmd, SCP_ISP_CMD);
+}
diff --git a/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.h b/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.h
new file mode 100644
index 000000000000..54025dfdb4e2
--- /dev/null
+++ b/drivers/media/platform/mtk-isp/isp_50/cam/mtk_cam-scp.h
@@ -0,0 +1,207 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Seraph Huang <seraph.huang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _MTK_ISP_SCP_H
+#define _MTK_ISP_SCP_H
+
+#include <linux/platform_data/mtk_scp.h>
+#include <linux/remoteproc.h>
+#include <linux/types.h>
+
+#define MAX_IMG_DMA_PORT 2
+#define MAX_META_DMA_NODES 4
+
+/*
+ * struct img_size - image size information.
+ *
+ * @w: image width, the unit is pixel
+ * @h: image height, the unit is pixel
+ * @xsize: bytes per line based on width.
+ * @stride: bytes per line when changing line.
+ * Normally, calculate new STRIDE based on
+ * xsize + HW constrain(page or align).
+ *
+ */
+struct img_size {
+ __u32 w;
+ __u32 h;
+ __u32 xsize;
+ __u32 stride;
+} __packed;
+
+/*
+ * struct img_buffer - buffer address information.
+ *
+ * @iova: DMA address for external devices.
+ * @scp_addr: SCP address for external co-process unit.
+ *
+ */
+struct img_buffer {
+ __u32 iova;
+ __u32 scp_addr;
+} __packed;
+
+struct p1_img_crop {
+ __u32 left;
+ __u32 top;
+ __u32 width;
+ __u32 height;
+} __packed;
+
+struct p1_img_output {
+ struct img_buffer buffer;
+ struct img_size size;
+ struct p1_img_crop crop;
+ __u8 pixel_byte;
+ __u32 img_fmt;
+} __packed;
+
+/*
+ * struct cfg_in_param - image input parameters structure.
+ * Normally, it comes from sensor information.
+ *
+ * @continuous: indicate the sensor mode.
+ * 1: continuous
+ * 0: single
+ * @subsample: indicate to enables SOF subsample or not.
+ * @pixel_mode: describe 1/2/4 pixels per clock cycle.
+ * @data_pattern: describe input data pattern.
+ * @raw_pixel_id: bayer sequence.
+ * @tg_fps: the fps rate of TG (time generator).
+ * @img_fmt: the image format of input source.
+ * @p1_img_crop: the crop configuration of input source.
+ *
+ */
+struct cfg_in_param {
+ __u8 continuous;
+ __u8 subsample;
+ __u8 pixel_mode;
+ __u8 data_pattern;
+ __u8 raw_pixel_id;
+ __u16 tg_fps;
+ __u32 img_fmt;
+ struct p1_img_crop crop;
+} __packed;
+
+/*
+ * struct cfg_main_out_param - the image output parameters of main stream.
+ *
+ * @bypass: indicate this device is enabled or disabled or not .
+ * @pure_raw: indicate the image path control.
+ * 1: pure raw
+ * 0: processing raw
+ * @pure_raw_pack: indicate the image is packed or not.
+ * 1: packed mode
+ * 0: unpacked mode
+ * @p1_img_output: the output image information.
+ *
+ */
+struct cfg_main_out_param {
+ /* Bypass main out parameters */
+ __u8 bypass;
+ /* Control HW image raw path */
+ __u8 pure_raw;
+ /* Control HW image pack function */
+ __u8 pure_raw_pack;
+ struct p1_img_output output;
+} __packed;
+
+/*
+ * struct cfg_resize_out_param - the image output parameters of
+ * packed out stream.
+ *
+ * @bypass: indicate this device is enabled or disabled or not .
+ * @p1_img_output: the output image information.
+ *
+ */
+struct cfg_resize_out_param {
+ /* Bypass resize parameters */
+ __u8 bypass;
+ struct p1_img_output output;
+} __packed;
+
+/*
+ * struct cfg_meta_out_param - output meta information.
+ *
+ * @enabled_meta_dmas: indicate which meta DMAs are enabled.
+ *
+ */
+struct cfg_meta_out_param {
+ __u32 enabled_meta_dmas;
+} __packed;
+
+struct p1_config_param {
+ /* Sensor/TG info */
+ struct cfg_in_param cfg_in_param;
+ /* IMGO DMA */
+ struct cfg_main_out_param cfg_main_param;
+ /* RRZO DMA */
+ struct cfg_resize_out_param cfg_resize_param;
+ /* 3A DMAs and other. */
+ struct cfg_meta_out_param cfg_meta_param;
+} __packed;
+
+struct p1_frame_param {
+ /* frame sequence number */
+ __u32 frame_seq_no;
+ /* SOF index */
+ __u32 sof_idx;
+ /* The memory address of tuning buffer from user space */
+ struct img_buffer tuning_addr;
+ struct p1_img_output img_dma_buffers[MAX_IMG_DMA_PORT];
+ struct img_buffer meta_addrs[MAX_META_DMA_NODES];
+} __packed;
+
+struct P1_meta_frame {
+ __u32 enabled_dma;
+ __u32 vb_index;
+ struct img_buffer meta_addr;
+} __packed;
+
+struct isp_init_info {
+ __u8 hw_module;
+ struct img_buffer cq_addr;
+} __packed;
+
+struct isp_ack_info {
+ __u8 cmd_id;
+ __u32 frame_seq_no;
+} __packed;
+
+enum mtk_isp_scp_CMD {
+ ISP_CMD_INIT,
+ ISP_CMD_CONFIG,
+ ISP_CMD_STREAM,
+ ISP_CMD_DEINIT,
+ ISP_CMD_ACK,
+ ISP_CMD_FRAME_ACK,
+ ISP_CMD_CONFIG_META,
+ ISP_CMD_ENQUEUE_META,
+ ISP_CMD_RESERVED,
+};
+
+struct mtk_isp_scp_p1_cmd {
+ __u8 cmd_id;
+ union {
+ struct isp_init_info frameparam;
+ struct p1_config_param config_param;
+ struct cfg_meta_out_param cfg_meta_out_param;
+ struct P1_meta_frame meta_frame;
+ __u8 is_stream_on;
+ struct isp_ack_info ack_info;
+ };
+} __packed;
+
+#endif /* _MTK_ISP_SCP_H */
--
2.18.0