// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: PC Chen <pc.chen@mediatek.com>
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*/
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#include "mtk_vcodec_drv.h"
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#include "mtk_vcodec_util.h"
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#include "vdec_ipi_msg.h"
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#include "vdec_vpu_if.h"
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#include "mtk_vcodec_fw.h"
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static void handle_init_ack_msg(const struct vdec_vpu_ipi_init_ack *msg)
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{
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struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
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(unsigned long)msg->ap_inst_addr;
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mtk_vcodec_debug(vpu, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr);
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/* mapping VPU address to kernel virtual address */
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/* the content in vsi is initialized to 0 in VPU */
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vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler,
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msg->vpu_inst_addr);
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vpu->inst_addr = msg->vpu_inst_addr;
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mtk_vcodec_debug(vpu, "- vpu_inst_addr = 0x%x", vpu->inst_addr);
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}
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/*
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* vpu_dec_ipi_handler - Handler for VPU ipi message.
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*
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* @data: ipi message
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* @len : length of ipi message
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* @priv: callback private data which is passed by decoder when register.
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*
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* This function runs in interrupt context and it means there's an IPI MSG
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* from VPU.
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*/
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static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
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{
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const struct vdec_vpu_ipi_ack *msg = data;
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struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
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(unsigned long)msg->ap_inst_addr;
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mtk_vcodec_debug(vpu, "+ id=%X", msg->msg_id);
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if (msg->status == 0) {
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switch (msg->msg_id) {
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case VPU_IPIMSG_DEC_INIT_ACK:
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handle_init_ack_msg(data);
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break;
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case VPU_IPIMSG_DEC_START_ACK:
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case VPU_IPIMSG_DEC_END_ACK:
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case VPU_IPIMSG_DEC_DEINIT_ACK:
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case VPU_IPIMSG_DEC_RESET_ACK:
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break;
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default:
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mtk_vcodec_err(vpu, "invalid msg=%X", msg->msg_id);
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break;
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}
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}
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mtk_vcodec_debug(vpu, "- id=%X", msg->msg_id);
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vpu->failure = msg->status;
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vpu->signaled = 1;
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}
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static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len)
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{
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int err;
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mtk_vcodec_debug(vpu, "id=%X", *(uint32_t *)msg);
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vpu->failure = 0;
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vpu->signaled = 0;
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err = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, vpu->id, msg,
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len, 2000);
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if (err) {
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mtk_vcodec_err(vpu, "send fail vpu_id=%d msg_id=%X status=%d",
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vpu->id, *(uint32_t *)msg, err);
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return err;
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}
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return vpu->failure;
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}
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static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id)
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{
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struct vdec_ap_ipi_cmd msg;
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int err = 0;
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mtk_vcodec_debug(vpu, "+ id=%X", msg_id);
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memset(&msg, 0, sizeof(msg));
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msg.msg_id = msg_id;
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msg.vpu_inst_addr = vpu->inst_addr;
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err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg));
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mtk_vcodec_debug(vpu, "- id=%X ret=%d", msg_id, err);
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return err;
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}
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int vpu_dec_init(struct vdec_vpu_inst *vpu)
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{
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struct vdec_ap_ipi_init msg;
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int err;
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mtk_vcodec_debug_enter(vpu);
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init_waitqueue_head(&vpu->wq);
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vpu->handler = vpu_dec_ipi_handler;
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err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id,
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vpu->handler, "vdec", NULL);
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if (err != 0) {
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mtk_vcodec_err(vpu, "vpu_ipi_register fail status=%d", err);
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return err;
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}
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memset(&msg, 0, sizeof(msg));
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msg.msg_id = AP_IPIMSG_DEC_INIT;
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msg.ap_inst_addr = (unsigned long)vpu;
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mtk_vcodec_debug(vpu, "vdec_inst=%p", vpu);
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err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
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mtk_vcodec_debug(vpu, "- ret=%d", err);
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return err;
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}
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int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
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{
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struct vdec_ap_ipi_dec_start msg;
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int i;
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int err = 0;
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mtk_vcodec_debug_enter(vpu);
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if (len > ARRAY_SIZE(msg.data)) {
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mtk_vcodec_err(vpu, "invalid len = %d\n", len);
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return -EINVAL;
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}
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memset(&msg, 0, sizeof(msg));
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msg.msg_id = AP_IPIMSG_DEC_START;
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msg.vpu_inst_addr = vpu->inst_addr;
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for (i = 0; i < len; i++)
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msg.data[i] = data[i];
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err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
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mtk_vcodec_debug(vpu, "- ret=%d", err);
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return err;
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}
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int vpu_dec_end(struct vdec_vpu_inst *vpu)
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{
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return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END);
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}
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int vpu_dec_deinit(struct vdec_vpu_inst *vpu)
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{
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return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT);
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}
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int vpu_dec_reset(struct vdec_vpu_inst *vpu)
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{
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return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_RESET);
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}
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