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ASoC: Intel: Skylake: Limit large_config_get to single frame 

Reply for the very first LARGE_CONFIG_GET request contains total size of
payload to be retrieved by host.
From then on, each subsequent reply carries buffer offset instead. As
looping is not covered by any real-life example, remove it and cleanup
the function for followup overhaul.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20190808181549.12521-2-cezary.rojewski@intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2019-08-08 20:15:48 +02:00 committed by Mark Brown
parent 0e4cc44f50
commit 63e45324c2
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 30 deletions
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37
sound/soc/intel/skylake/skl-sst-ipc.c
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@ -973,8 +973,7 @@ int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
{
struct skl_ipc_header header = {0};
struct sst_ipc_message request = {0}, reply = {0};
int ret = 0;
size_t sz_remaining, rx_size, data_offset;
int ret;
header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
@ -987,34 +986,12 @@ int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
header.extension |= IPC_FINAL_BLOCK(1);
header.extension |= IPC_INITIAL_BLOCK(1);
sz_remaining = msg->param_data_size;
data_offset = 0;
while (sz_remaining != 0) {
rx_size = sz_remaining > SKL_ADSP_W1_SZ
? SKL_ADSP_W1_SZ : sz_remaining;
if (rx_size == sz_remaining)
header.extension |= IPC_FINAL_BLOCK(1);
request.header = *(u64 *)(&header);
reply.data = ((char *)param) + data_offset;
reply.size = msg->param_data_size;
ret = sst_ipc_tx_message_wait(ipc, request, &reply);
if (ret < 0) {
dev_err(ipc->dev,
"ipc: get large config fail, err: %d\n", ret);
return ret;
}
sz_remaining -= rx_size;
data_offset = msg->param_data_size - sz_remaining;
/* clear the fields */
header.extension &= IPC_INITIAL_BLOCK_CLEAR;
header.extension &= IPC_DATA_OFFSET_SZ_CLEAR;
/* fill the fields */
header.extension |= IPC_INITIAL_BLOCK(1);
header.extension |= IPC_DATA_OFFSET_SZ(data_offset);
}
request.header = *(u64 *)(&header);
reply.data = param;
reply.size = msg->param_data_size;
ret = sst_ipc_tx_message_wait(ipc, request, &reply);
if (ret < 0)
dev_err(ipc->dev, "ipc: get large config fail, err: %d\n", ret);
return ret;
}