From 92be17a559a8872b655512b1cf9d0bc407bace33 Mon Sep 17 00:00:00 2001 From: Karol Trzcinski Date: Wed, 15 Apr 2020 15:27:55 -0500 Subject: ASoC: SOF: Introduce offset in firmware data It makes possible to provide extra information to host before downloading firmware. Extra data should be put at the beginning of firmware binary. Exchange is done without any effort on DSP side. This mechanism will be used in extended manifest. Signed-off-by: Karol Trzcinski Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200415202816.934-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/sof/intel/hda-loader.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'sound/soc/sof/intel') diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index e1550ccd0a49..1beaaf5879e2 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -293,8 +293,13 @@ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev) chip_info = desc->chip_info; - stripped_firmware.data = plat_data->fw->data; - stripped_firmware.size = plat_data->fw->size; + if (plat_data->fw->size < plat_data->fw_offset) { + dev_err(sdev->dev, "error: firmware size must be greater than firmware offset\n"); + return -EINVAL; + } + + stripped_firmware.data = plat_data->fw->data + plat_data->fw_offset; + stripped_firmware.size = plat_data->fw->size - plat_data->fw_offset; /* init for booting wait */ init_waitqueue_head(&sdev->boot_wait); -- cgit v1.2.3