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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*/
#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_util.h"
#include "vdec_ipi_msg.h"
#include "vdec_vpu_if.h"
#include "mtk_vcodec_fw.h"
static void handle_init_ack_msg(const struct vdec_vpu_ipi_init_ack *msg)
{
struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
(unsigned long)msg->ap_inst_addr;
mtk_vcodec_debug(vpu, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr);
/* mapping VPU address to kernel virtual address */
/* the content in vsi is initialized to 0 in VPU */
vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler,
msg->vpu_inst_addr);
vpu->inst_addr = msg->vpu_inst_addr;
mtk_vcodec_debug(vpu, "- vpu_inst_addr = 0x%x", vpu->inst_addr);
/* Set default ABI version if dealing with unversioned firmware. */
vpu->fw_abi_version = 0;
/*
* Instance ID is only used if ABI version >= 2. Initialize it with
* garbage by default.
*/
vpu->inst_id = 0xdeadbeef;
/* Firmware version field does not exist on MT8173. */
if (vpu->ctx->dev->vdec_pdata->chip == MTK_MT8173)
return;
/* Check firmware version. */
vpu->fw_abi_version = msg->vdec_abi_version;
mtk_vcodec_debug(vpu, "firmware version 0x%x\n", vpu->fw_abi_version);
switch (vpu->fw_abi_version) {
case 1:
break;
case 2:
vpu->inst_id = msg->inst_id;
break;
default:
mtk_vcodec_err(vpu, "unhandled firmware version 0x%x\n",
vpu->fw_abi_version);
vpu->failure = 1;
break;
}
}
/*
* vpu_dec_ipi_handler - Handler for VPU ipi message.
*
* @data: ipi message
* @len : length of ipi message
* @priv: callback private data which is passed by decoder when register.
*
* This function runs in interrupt context and it means there's an IPI MSG
* from VPU.
*/
static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
{
const struct vdec_vpu_ipi_ack *msg = data;
struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)
(unsigned long)msg->ap_inst_addr;
mtk_vcodec_debug(vpu, "+ id=%X", msg->msg_id);
vpu->failure = msg->status;
vpu->signaled = 1;
if (msg->status == 0) {
switch (msg->msg_id) {
case VPU_IPIMSG_DEC_INIT_ACK:
handle_init_ack_msg(data);
break;
case VPU_IPIMSG_DEC_START_ACK:
case VPU_IPIMSG_DEC_END_ACK:
case VPU_IPIMSG_DEC_DEINIT_ACK:
case VPU_IPIMSG_DEC_RESET_ACK:
case VPU_IPIMSG_DEC_CORE_ACK:
case VPU_IPIMSG_DEC_CORE_END_ACK:
break;
default:
mtk_vcodec_err(vpu, "invalid msg=%X", msg->msg_id);
break;
}
}
mtk_vcodec_debug(vpu, "- id=%X", msg->msg_id);
}
static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len)
{
int err, id, msgid;
msgid = *(uint32_t *)msg;
mtk_vcodec_debug(vpu, "id=%X", msgid);
vpu->failure = 0;
vpu->signaled = 0;
if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) {
if (msgid == AP_IPIMSG_DEC_CORE ||
msgid == AP_IPIMSG_DEC_CORE_END)
id = vpu->core_id;
else
id = vpu->id;
} else {
id = vpu->id;
}
err = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, id, msg,
len, 2000);
if (err) {
mtk_vcodec_err(vpu, "send fail vpu_id=%d msg_id=%X status=%d",
id, msgid, err);
return err;
}
return vpu->failure;
}
static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id)
{
struct vdec_ap_ipi_cmd msg;
int err = 0;
mtk_vcodec_debug(vpu, "+ id=%X", msg_id);
memset(&msg, 0, sizeof(msg));
msg.msg_id = msg_id;
if (vpu->fw_abi_version < 2)
msg.vpu_inst_addr = vpu->inst_addr;
else
msg.inst_id = vpu->inst_id;
msg.codec_type = vpu->codec_type;
err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- id=%X ret=%d", msg_id, err);
return err;
}
int vpu_dec_init(struct vdec_vpu_inst *vpu)
{
struct vdec_ap_ipi_init msg;
int err;
mtk_vcodec_debug_enter(vpu);
init_waitqueue_head(&vpu->wq);
vpu->handler = vpu_dec_ipi_handler;
err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id,
vpu->handler, "vdec", NULL);
if (err) {
mtk_vcodec_err(vpu, "vpu_ipi_register fail status=%d", err);
return err;
}
if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) {
err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler,
vpu->core_id, vpu->handler,
"vdec", NULL);
if (err) {
mtk_vcodec_err(vpu, "vpu_ipi_register core fail status=%d", err);
return err;
}
}
memset(&msg, 0, sizeof(msg));
msg.msg_id = AP_IPIMSG_DEC_INIT;
msg.ap_inst_addr = (unsigned long)vpu;
msg.codec_type = vpu->codec_type;
mtk_vcodec_debug(vpu, "vdec_inst=%p", vpu);
err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- ret=%d", err);
return err;
}
int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
{
struct vdec_ap_ipi_dec_start msg;
int i;
int err = 0;
mtk_vcodec_debug_enter(vpu);
if (len > ARRAY_SIZE(msg.data)) {
mtk_vcodec_err(vpu, "invalid len = %d\n", len);
return -EINVAL;
}
memset(&msg, 0, sizeof(msg));
msg.msg_id = AP_IPIMSG_DEC_START;
if (vpu->fw_abi_version < 2)
msg.vpu_inst_addr = vpu->inst_addr;
else
msg.inst_id = vpu->inst_id;
for (i = 0; i < len; i++)
msg.data[i] = data[i];
msg.codec_type = vpu->codec_type;
err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
mtk_vcodec_debug(vpu, "- ret=%d", err);
return err;
}
int vpu_dec_core(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE);
}
int vpu_dec_end(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END);
}
int vpu_dec_core_end(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE_END);
}
int vpu_dec_deinit(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT);
}
int vpu_dec_reset(struct vdec_vpu_inst *vpu)
{
return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_RESET);
}
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