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dma/cavs_hda: Support source/dest width setting

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Support adjusting the sample size to 16bits if the source
or destination width is set 3 or less.

Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
This commit is contained in:
Tom Burdick 2022-03-30 13:23:56 -05:00 committed by Anas Nashif
parent 602ef3fb0e
commit c0b63d6afb
1 changed files with 19 additions and 3 deletions
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22
drivers/dma/dma_cavs_hda.c
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@ -43,6 +43,7 @@ int cavs_hda_dma_host_in_config(const struct device *dev,
const struct cavs_hda_dma_cfg *const cfg = dev->config;
struct dma_block_config *blk_cfg;
uint8_t *buf;
int res;
__ASSERT(channel < cfg->dma_channels, "Channel does not exist");
__ASSERT(dma_cfg->block_count == 1,
@ -54,8 +55,15 @@ int cavs_hda_dma_host_in_config(const struct device *dev,
blk_cfg = dma_cfg->head_block;
buf = (uint8_t *)(uintptr_t)(blk_cfg->source_address);
return cavs_hda_set_buffer(cfg->base, channel, buf,
res = cavs_hda_set_buffer(cfg->base, channel, buf,
blk_cfg->block_size);
if (res == 0 && dma_cfg->source_data_size <= 3) {
/* set the sample container set bit to 16bits */
*DGCS(cfg->base, channel) |= DGCS_SCS;
}
return res;
}
@ -64,8 +72,9 @@ int cavs_hda_dma_host_out_config(const struct device *dev,
struct dma_config *dma_cfg)
{
const struct cavs_hda_dma_cfg *const cfg = dev->config;
uint8_t *buf;
struct dma_block_config *blk_cfg;
uint8_t *buf;
int res;
__ASSERT(channel < cfg->dma_channels, "Channel does not exist");
__ASSERT(dma_cfg->block_count == 1,
@ -78,8 +87,15 @@ int cavs_hda_dma_host_out_config(const struct device *dev,
blk_cfg = dma_cfg->head_block;
buf = (uint8_t *)(uintptr_t)(blk_cfg->dest_address);
return cavs_hda_set_buffer(cfg->base, channel, buf,
res = cavs_hda_set_buffer(cfg->base, channel, buf,
blk_cfg->block_size);
if (res == 0 && dma_cfg->dest_data_size <= 3) {
/* set the sample container set bit to 16bits */
*DGCS(cfg->base, channel) |= DGCS_SCS;
}
return res;
}
int cavs_hda_dma_host_reload(const struct device *dev, uint32_t channel,