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Code Issues Releases Activity

fusee: undo a silly mistake in longer-than-8K operations

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This commit is contained in:
Kate J. Temkin 2018-05-11 21:36:21 -07:00
parent f6f8065417
commit 9f86c75ea4
1 changed files with 6 additions and 11 deletions
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17
fusee/fusee-primary/src/sdmmc.c
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@ -1094,7 +1094,7 @@ static int sdmmc_wait_until_no_longer_busy(struct mmc *mmc)
* *
* @param mmc The MMC controller that has suffered a full buffer. * @param mmc The MMC controller that has suffered a full buffer.
*/ */
static int sdmmc_handle_full_dma_buffers(struct mmc *mmc) static int sdmmc_flush_bounce_buffer(struct mmc *mmc)
{ {
// Determine the total amount copied by subtracting the current pointer from // Determine the total amount copied by subtracting the current pointer from
// its starting address-- effectively by figuring out how far we got in the bounce buffer. // its starting address-- effectively by figuring out how far we got in the bounce buffer.
@ -1188,7 +1188,7 @@ static int sdmmc_wait_for_command_completion(struct mmc *mmc)
static int sdmmc_wait_for_transfer_completion(struct mmc *mmc) static int sdmmc_wait_for_transfer_completion(struct mmc *mmc)
{ {
return sdmmc_wait_for_interrupt(mmc, MMC_STATUS_TRANSFER_COMPLETE, return sdmmc_wait_for_interrupt(mmc, MMC_STATUS_TRANSFER_COMPLETE,
MMC_STATUS_DMA_INTERRUPT, sdmmc_handle_full_dma_buffers); MMC_STATUS_DMA_INTERRUPT, sdmmc_flush_bounce_buffer);
} }
@ -1525,9 +1525,8 @@ static int sdmmc_send_command(struct mmc *mmc, enum sdmmc_command command,
// If this is a write and we have data, we'll need to populate the bounce buffer before // If this is a write and we have data, we'll need to populate the bounce buffer before
// issuing the command. // issuing the command.
if (blocks_to_transfer && is_write && mmc->use_dma && data_buffer) { if (blocks_to_transfer && is_write && mmc->use_dma && data_buffer)
memcpy(sdmmc_bounce_buffer, data_buffer, total_data_to_xfer); memcpy(sdmmc_bounce_buffer, (void *)mmc->active_data_buffer, total_data_to_xfer);
}
// Configure the controller to send the command. // Configure the controller to send the command.
sdmmc_prepare_command_registers(mmc, blocks_to_transfer, command, response_type, checks); sdmmc_prepare_command_registers(mmc, blocks_to_transfer, command, response_type, checks);
@ -1568,9 +1567,8 @@ static int sdmmc_send_command(struct mmc *mmc, enum sdmmc_command command,
// If this is a read, and we've just finished a transfer, copy the data from // If this is a read, and we've just finished a transfer, copy the data from
// our bounce buffer to the target data buffer. // our bounce buffer to the target data buffer.
if (!is_write && data_buffer) { if (!is_write && data_buffer)
memcpy(data_buffer, sdmmc_bounce_buffer, total_data_to_xfer); sdmmc_flush_bounce_buffer(mmc);
}
} }
// Otherwise, perform the transfer using the CPU. // Otherwise, perform the transfer using the CPU.
else { else {
@ -2001,9 +1999,6 @@ static int sdmmc_get_relative_address(struct mmc *mmc)
{ {
int rc; int rc;
uint32_t response; uint32_t response;
//uint32_t timebase = get_time();
// TODO: do we need to repeatedly retry this? other codebases do
// Set up the card's relative address. // Set up the card's relative address.
rc = sdmmc_send_simple_command(mmc, CMD_GET_RELATIVE_ADDR, MMC_RESPONSE_LEN48, 0, &response); rc = sdmmc_send_simple_command(mmc, CMD_GET_RELATIVE_ADDR, MMC_RESPONSE_LEN48, 0, &response);