diff options
Diffstat (limited to 'drivers/media/platform/mediatek/mtk-vcodec/vdec_vpu_if.c')
| -rw-r--r-- | drivers/media/platform/mediatek/mtk-vcodec/vdec_vpu_if.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/mtk-vcodec/vdec_vpu_if.c b/drivers/media/platform/mediatek/mtk-vcodec/vdec_vpu_if.c new file mode 100644 index 000000000000..dd35d2c5f920 --- /dev/null +++ b/drivers/media/platform/mediatek/mtk-vcodec/vdec_vpu_if.c @@ -0,0 +1,243 @@ +// 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); +} |