93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// mtk-scp-vow-common.c --
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//
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// Copyright (c) 2019 MediaTek Inc.
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// Author: Poyen <Poyen.wu@mediatek.com>
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#include <linux/io.h>
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#include "mtk-sram-manager.h"
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#include "mtk-base-afe.h"
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#include "mtk-afe-fe-dai.h"
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#if IS_ENABLED(CONFIG_MTK_TINYSYS_SCP_SUPPORT)
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#include "scp.h"
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#endif
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#include "mtk-scp-vow-common.h"
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#include "mtk-scp-vow-platform.h"
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int allocate_vow_bargein_mem(struct snd_pcm_substream *substream,
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dma_addr_t *phys_addr,
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unsigned char **virt_addr,
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unsigned int size,
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snd_pcm_format_t format,
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struct mtk_base_afe *afe)
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{
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struct snd_dma_buffer *dma_buf = &substream->dma_buffer;
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struct mtk_base_afe_memif *memif;
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int id;
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int ret = 0;
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id = get_scp_vow_memif_id();
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memif = &afe->memif[id];
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dma_buf->dev.type = SNDRV_DMA_TYPE_DEV;
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dma_buf->dev.dev = substream->pcm->card->dev;
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dma_buf->private_data = NULL;
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dma_buf->bytes = size;
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if (mtk_audio_sram_allocate(afe->sram,
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&dma_buf->addr,
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&dma_buf->area,
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dma_buf->bytes,
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substream,
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format, false) == 0) {
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/* Using SRAM */
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dev_info(afe->dev, "%s(), use SRAM\n", __func__);
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memif->using_sram = 1;
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} else {
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/* Using DRAM */
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dev_info(afe->dev, "%s(), use DRAM\n", __func__);
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#if IS_ENABLED(CONFIG_MTK_TINYSYS_SCP_SUPPORT)
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dma_buf->addr = scp_get_reserve_mem_phys(VOW_BARGEIN_MEM_ID);
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dma_buf->area =
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(uint8_t *)scp_get_reserve_mem_virt(VOW_BARGEIN_MEM_ID);
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memif->using_sram = 0;
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#else
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dev_info(afe->dev, "%s(), scp not supported, scp_get_reserve_mem failed.\n",
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__func__);
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return -EINVAL;
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#endif
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}
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memset_io(dma_buf->area, 0, dma_buf->bytes);
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ret = mtk_memif_set_addr(afe, id,
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dma_buf->area,
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dma_buf->addr,
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dma_buf->bytes);
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if (ret) {
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dev_info(afe->dev, "%s(), error, set addr, ret %d\n",
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__func__, ret);
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return ret;
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}
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dev_info(afe->dev, "%s(), addr = %pad, area = %p, bytes = %zu\n",
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__func__, &dma_buf->addr, dma_buf->area,
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dma_buf->bytes);
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if ((memif->using_sram == 0) && (afe->request_dram_resource))
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afe->request_dram_resource(afe->dev);
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*phys_addr = dma_buf->addr;
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*virt_addr = dma_buf->area;
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return ret;
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}
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int get_scp_vow_memif_id(void)
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{
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return get_scp_vow_memif_platform_id();
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}
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