ASoC: SOF: Intel: byt: Refactor fw ready / mem windows creation

There is a lot of duplicate code when processing IPC firmware ready
notification and creating memory windows.

First step in reducing the code duplication is to introduce generic
functions:
	* sof_get_windows
	* sof_fw_ready
that will replace, in the first step, the specific implementation related
to baytrail related platforms:
	* byt_get_windows
	* byt_fw_ready

So we are basically moving code from intel/byt.c to loader.c keeping
in mind that mbox_offset is a per platform constant so we need to
use newly introduced snd_sof_dsp_get_mailbox_offset /
snd_sof_dsp_get_window_offset in order to get the correct
mbox offset / window offset value.

Also, bar is a per platform constant so we use snd_sof_dsp_get_bar_index
instead of the hardcoded BYT_DSP_BAR.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190807150203.26359-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index de11f28bae3a..730f3259dd02 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -642,6 +642,8 @@ void sof_block_write(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *src,
 void sof_block_read(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *dest,
 		    size_t size);
 
+int sof_fw_ready(struct snd_sof_dev *sdev, u32 msg_id);
+
 void intel_ipc_msg_data(struct snd_sof_dev *sdev,
 			struct snd_pcm_substream *substream,
 			void *p, size_t sz);