On 3/11/22 09:46, Cezary Rojewski wrote:
On 2022-03-09 11:36 PM, Pierre-Louis Bossart wrote:
/*
* struct avs_dev - Intel HD-Audio driver data
*
* @dev: PCI device
* @dsp_ba: DSP bar address
* @spec: platform-specific descriptor
+ * @fw_cfg: Firmware configuration, obtained through FW_CONFIG message
+ * @hw_cfg: Hardware configuration, obtained through HW_CONFIG message
+ * @mods_info: Available module-types, obtained through MODULES_INFO
message
is this just for the base firmware? If this includes the extensions,
how are the module types defined?
Only base firmware is able to process MODULE_INFO getter. So, every time
driver loads a library, this info gets updated internally on the
firmware side. We make use of said getter to retrieve up-to-date
information and cache in ->mods_info for later use. ->mods_info is a
member of type struct avs_mods_info with each enter represented by
struct avs_module_info. These are introduced with all the basefw runtime
parameters.
you clarified the mechanism but not the definition of 'module-type'?
the definition doesn't really help.
struct avs_module_type {
u32 load_type:4;
u32 auto_start:1;
u32 domain_ll:1;
u32 domain_dp:1;
u32 lib_code:1;
u32 rsvd:24;
} __packed;
I see nothing that would e.g. identify a mixer from a gain. The
definition of 'type' seems to refer to low-level properties, not what
the module actually does?
