[media] vcodec: mediatek: Add Mediatek VP8 Video Encoder Driver

Add vp8 encoder driver for MT8173
Signed-off-by: PoChun Lin <pochun.lin@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/mtk-vcodec/Makefile

 
+
 obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o mtk-vcodec-common.o
 
 
 
-mtk-vcodec-enc-y := mtk_vcodec_enc.o \
+mtk-vcodec-enc-y := venc/venc_vp8_if.o \
+		venc/venc_h264_if.o \
+		mtk_vcodec_enc.o \
 		mtk_vcodec_enc_drv.o \
 		mtk_vcodec_enc_pm.o \
 		venc_drv_if.o \
+		venc_vpu_if.o \
 
 mtk-vcodec-common-y := mtk_vcodec_intr.o \
 		mtk_vcodec_util.o\

drivers/media/platform/mtk-vcodec/venc_drv_if.c

@@ -19,12 +19,15 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 
+#include "venc_drv_base.h"
 #include "venc_drv_if.h"
+
 #include "mtk_vcodec_enc.h"
 #include "mtk_vcodec_enc_pm.h"
 #include "mtk_vpu.h"
 
-#include "venc_drv_base.h"
+
+struct venc_common_if *get_vp8_enc_comm_if(void);
 
 int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
 {
@@ -32,6 +35,8 @@ int venc_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
 
 	switch (fourcc) {
 	case V4L2_PIX_FMT_VP8:
+		ctx->enc_if = get_vp8_enc_comm_if();
+		break;
 	case V4L2_PIX_FMT_H264:
 	default:
 		return -EINVAL;

drivers/media/platform/mtk-vcodec/venc_vpu_if.c

+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PoChun Lin <pochun.lin@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 "mtk_vpu.h"
+#include "venc_ipi_msg.h"
+#include "venc_vpu_if.h"
+
+static void handle_enc_init_msg(struct venc_vpu_inst *vpu, void *data)
+{
+	struct venc_vpu_ipi_msg_init *msg = data;
+
+	vpu->inst_addr = msg->vpu_inst_addr;
+	vpu->vsi = vpu_mapping_dm_addr(vpu->dev, msg->vpu_inst_addr);
+}
+
+static void handle_enc_encode_msg(struct venc_vpu_inst *vpu, void *data)
+{
+	struct venc_vpu_ipi_msg_enc *msg = data;
+
+	vpu->state = msg->state;
+	vpu->bs_size = msg->bs_size;
+	vpu->is_key_frm = msg->is_key_frm;
+}
+
+static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv)
+{
+	struct venc_vpu_ipi_msg_common *msg = data;
+	struct venc_vpu_inst *vpu = (struct venc_vpu_inst *)msg->venc_inst;
+
+	mtk_vcodec_debug(vpu, "msg_id %x inst %p status %d",
+			 msg->msg_id, vpu, msg->status);
+
+	switch (msg->msg_id) {
+	case VPU_IPIMSG_ENC_INIT_DONE:
+		handle_enc_init_msg(vpu, data);
+		break;
+	case VPU_IPIMSG_ENC_SET_PARAM_DONE:
+		break;
+	case VPU_IPIMSG_ENC_ENCODE_DONE:
+		handle_enc_encode_msg(vpu, data);
+		break;
+	case VPU_IPIMSG_ENC_DEINIT_DONE:
+		break;
+	default:
+		mtk_vcodec_err(vpu, "unknown msg id %x", msg->msg_id);
+		break;
+	}
+
+	vpu->signaled = 1;
+	vpu->failure = (msg->status != VENC_IPI_MSG_STATUS_OK);
+
+	mtk_vcodec_debug_leave(vpu);
+}
+
+static int vpu_enc_send_msg(struct venc_vpu_inst *vpu, void *msg,
+			    int len)
+{
+	int status;
+
+	mtk_vcodec_debug_enter(vpu);
+
+	if (!vpu->dev) {
+		mtk_vcodec_err(vpu, "inst dev is NULL");
+		return -EINVAL;
+	}
+
+	status = vpu_ipi_send(vpu->dev, vpu->id, msg, len);
+	if (status) {
+		uint32_t msg_id = *(uint32_t *)msg;
+
+		mtk_vcodec_err(vpu, "vpu_ipi_send msg_id %x len %d fail %d",
+			       msg_id, len, status);
+		return -EINVAL;
+	}
+	if (vpu->failure)
+		return -EINVAL;
+
+	mtk_vcodec_debug_leave(vpu);
+
+	return 0;
+}
+
+int vpu_enc_init(struct venc_vpu_inst *vpu)
+{
+	int status;
+	struct venc_ap_ipi_msg_init out;
+
+	mtk_vcodec_debug_enter(vpu);
+
+	init_waitqueue_head(&vpu->wq_hd);
+	vpu->signaled = 0;
+	vpu->failure = 0;
+
+	status = vpu_ipi_register(vpu->dev, vpu->id, vpu_enc_ipi_handler,
+				  NULL, NULL);
+	if (status) {
+		mtk_vcodec_err(vpu, "vpu_ipi_register fail %d", status);
+		return -EINVAL;
+	}
+
+	memset(&out, 0, sizeof(out));
+	out.msg_id = AP_IPIMSG_ENC_INIT;
+	out.venc_inst = (unsigned long)vpu;
+	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
+		mtk_vcodec_err(vpu, "AP_IPIMSG_ENC_INIT fail");
+		return -EINVAL;
+	}
+
+	mtk_vcodec_debug_leave(vpu);
+
+	return 0;
+}
+
+int vpu_enc_set_param(struct venc_vpu_inst *vpu,
+		      enum venc_set_param_type id,
+		      struct venc_enc_param *enc_param)
+{
+	struct venc_ap_ipi_msg_set_param out;
+
+	mtk_vcodec_debug(vpu, "id %d ->", id);
+
+	memset(&out, 0, sizeof(out));
+	out.msg_id = AP_IPIMSG_ENC_SET_PARAM;
+	out.vpu_inst_addr = vpu->inst_addr;
+	out.param_id = id;
+	switch (id) {
+	case VENC_SET_PARAM_ENC:
+		out.data_item = 0;
+		break;
+	case VENC_SET_PARAM_FORCE_INTRA:
+		out.data_item = 0;
+		break;
+	case VENC_SET_PARAM_ADJUST_BITRATE:
+		out.data_item = 1;
+		out.data[0] = enc_param->bitrate;
+		break;
+	case VENC_SET_PARAM_ADJUST_FRAMERATE:
+		out.data_item = 1;
+		out.data[0] = enc_param->frm_rate;
+		break;
+	case VENC_SET_PARAM_GOP_SIZE:
+		out.data_item = 1;
+		out.data[0] = enc_param->gop_size;
+		break;
+	case VENC_SET_PARAM_INTRA_PERIOD:
+		out.data_item = 1;
+		out.data[0] = enc_param->intra_period;
+		break;
+	case VENC_SET_PARAM_SKIP_FRAME:
+		out.data_item = 0;
+		break;
+	default:
+		mtk_vcodec_err(vpu, "id %d not supported", id);
+		return -EINVAL;
+	}
+	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
+		mtk_vcodec_err(vpu,
+			       "AP_IPIMSG_ENC_SET_PARAM %d fail", id);
+		return -EINVAL;
+	}
+
+	mtk_vcodec_debug(vpu, "id %d <-", id);
+
+	return 0;
+}
+
+int vpu_enc_encode(struct venc_vpu_inst *vpu, unsigned int bs_mode,
+		   struct venc_frm_buf *frm_buf,
+		   struct mtk_vcodec_mem *bs_buf,
+		   unsigned int *bs_size)
+{
+	struct venc_ap_ipi_msg_enc out;
+
+	mtk_vcodec_debug(vpu, "bs_mode %d ->", bs_mode);
+
+	memset(&out, 0, sizeof(out));
+	out.msg_id = AP_IPIMSG_ENC_ENCODE;
+	out.vpu_inst_addr = vpu->inst_addr;
+	out.bs_mode = bs_mode;
+	if (frm_buf) {
+		if ((frm_buf->fb_addr[0].dma_addr % 16 == 0) &&
+		    (frm_buf->fb_addr[1].dma_addr % 16 == 0) &&
+		    (frm_buf->fb_addr[2].dma_addr % 16 == 0)) {
+			out.input_addr[0] = frm_buf->fb_addr[0].dma_addr;
+			out.input_addr[1] = frm_buf->fb_addr[1].dma_addr;
+			out.input_addr[2] = frm_buf->fb_addr[2].dma_addr;
+		} else {
+			mtk_vcodec_err(vpu, "dma_addr not align to 16");
+			return -EINVAL;
+		}
+	}
+	if (bs_buf) {
+		out.bs_addr = bs_buf->dma_addr;
+		out.bs_size = bs_buf->size;
+	}
+	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
+		mtk_vcodec_err(vpu, "AP_IPIMSG_ENC_ENCODE %d fail",
+			       bs_mode);
+		return -EINVAL;
+	}
+
+	mtk_vcodec_debug(vpu, "bs_mode %d state %d size %d key_frm %d <-",
+			 bs_mode, vpu->state, vpu->bs_size, vpu->is_key_frm);
+
+	return 0;
+}
+
+int vpu_enc_deinit(struct venc_vpu_inst *vpu)
+{
+	struct venc_ap_ipi_msg_deinit out;
+
+	mtk_vcodec_debug_enter(vpu);
+
+	memset(&out, 0, sizeof(out));
+	out.msg_id = AP_IPIMSG_ENC_DEINIT;
+	out.vpu_inst_addr = vpu->inst_addr;
+	if (vpu_enc_send_msg(vpu, &out, sizeof(out))) {
+		mtk_vcodec_err(vpu, "AP_IPIMSG_ENC_DEINIT fail");
+		return -EINVAL;
+	}
+
+	mtk_vcodec_debug_leave(vpu);
+
+	return 0;
+}

drivers/media/platform/mtk-vcodec/venc_vpu_if.h

+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PoChun Lin <pochun.lin@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 _VENC_VPU_IF_H_
+#define _VENC_VPU_IF_H_
+
+#include "mtk_vpu.h"
+#include "venc_drv_if.h"
+
+/*
+ * struct venc_vpu_inst - encoder VPU driver instance
+ * @wq_hd: wait queue used for vpu cmd trigger then wait vpu interrupt done
+ * @signaled: flag used for checking vpu interrupt done
+ * @failure: flag to show vpu cmd succeeds or not
+ * @state: enum venc_ipi_msg_enc_state
+ * @bs_size: bitstream size for skip frame case usage
+ * @is_key_frm: key frame flag
+ * @inst_addr: VPU instance addr
+ * @vsi: driver structure allocated by VPU side and shared to AP side for
+ *	 control and info share
+ * @id: the id of inter-processor interrupt
+ * @ctx: context for v4l2 layer integration
+ * @dev: device for v4l2 layer integration
+ */
+struct venc_vpu_inst {
+	wait_queue_head_t wq_hd;
+	int signaled;
+	int failure;
+	int state;
+	int bs_size;
+	int is_key_frm;
+	unsigned int inst_addr;
+	void *vsi;
+	enum ipi_id id;
+	struct mtk_vcodec_ctx *ctx;
+	struct platform_device *dev;
+};
+
+int vpu_enc_init(struct venc_vpu_inst *vpu);
+int vpu_enc_set_param(struct venc_vpu_inst *vpu,
+		      enum venc_set_param_type id,
+		      struct venc_enc_param *param);
+int vpu_enc_encode(struct venc_vpu_inst *vpu, unsigned int bs_mode,
+		   struct venc_frm_buf *frm_buf,
+		   struct mtk_vcodec_mem *bs_buf,
+		   unsigned int *bs_size);
+int vpu_enc_deinit(struct venc_vpu_inst *vpu);
+
+#endif