534 lines
15 KiB
C
534 lines
15 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* sst.h - Intel SST Driver for audio engine
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*
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* Copyright (C) 2008-14 Intel Corporation
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* Authors: Vinod Koul <vinod.koul@intel.com>
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* Harsha Priya <priya.harsha@intel.com>
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* Dharageswari R <dharageswari.r@intel.com>
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* KP Jeeja <jeeja.kp@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* Common private declarations for SST
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*/
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#ifndef __SST_H__
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#define __SST_H__
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#include <linux/firmware.h>
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/* driver names */
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#define SST_DRV_NAME "intel_sst_driver"
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#define SST_MRFLD_PCI_ID 0x119A
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#define SST_BYT_ACPI_ID 0x80860F28
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#define SST_CHV_ACPI_ID 0x808622A8
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#define SST_SUSPEND_DELAY 2000
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#define FW_CONTEXT_MEM (64*1024)
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#define SST_ICCM_BOUNDARY 4
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#define SST_CONFIG_SSP_SIGN 0x7ffe8001
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#define MRFLD_FW_VIRTUAL_BASE 0xC0000000
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#define MRFLD_FW_DDR_BASE_OFFSET 0x0
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#define MRFLD_FW_FEATURE_BASE_OFFSET 0x4
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#define MRFLD_FW_BSS_RESET_BIT 0
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/* SST Shim register map */
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#define SST_CSR 0x00
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#define SST_ISRX 0x18
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#define SST_IMRX 0x28
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#define SST_IPCX 0x38 /* IPC IA -> SST */
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#define SST_IPCD 0x40 /* IPC SST -> IA */
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extern const struct dev_pm_ops intel_sst_pm;
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enum sst_states {
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SST_FW_LOADING = 1,
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SST_FW_RUNNING,
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SST_RESET,
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SST_SHUTDOWN,
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};
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enum sst_algo_ops {
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SST_SET_ALGO = 0,
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SST_GET_ALGO = 1,
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};
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#define SST_BLOCK_TIMEOUT 1000
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#define FW_SIGNATURE_SIZE 4
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#define FW_NAME_SIZE 32
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/* stream states */
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enum sst_stream_states {
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STREAM_UN_INIT = 0, /* Freed/Not used stream */
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STREAM_RUNNING = 1, /* Running */
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STREAM_PAUSED = 2, /* Paused stream */
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STREAM_INIT = 3, /* stream init, waiting for data */
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};
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enum sst_ram_type {
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SST_IRAM = 1,
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SST_DRAM = 2,
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SST_DDR = 5,
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SST_CUSTOM_INFO = 7, /* consists of FW binary information */
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};
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/* SST shim registers to structure mapping */
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union interrupt_reg {
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struct {
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u64 done_interrupt:1;
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u64 busy_interrupt:1;
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u64 rsvd:62;
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} part;
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u64 full;
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};
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union sst_pisr_reg {
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struct {
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u32 pssp0:1;
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u32 pssp1:1;
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u32 rsvd0:3;
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u32 dmac:1;
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u32 rsvd1:26;
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} part;
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u32 full;
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};
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union sst_pimr_reg {
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struct {
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u32 ssp0:1;
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u32 ssp1:1;
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u32 rsvd0:3;
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u32 dmac:1;
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u32 rsvd1:10;
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u32 ssp0_sc:1;
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u32 ssp1_sc:1;
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u32 rsvd2:3;
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u32 dmac_sc:1;
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u32 rsvd3:10;
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} part;
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u32 full;
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};
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union config_status_reg_mrfld {
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struct {
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u64 lpe_reset:1;
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u64 lpe_reset_vector:1;
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u64 runstall:1;
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u64 pwaitmode:1;
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u64 clk_sel:3;
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u64 rsvd2:1;
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u64 sst_clk:3;
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u64 xt_snoop:1;
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u64 rsvd3:4;
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u64 clk_sel1:6;
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u64 clk_enable:3;
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u64 rsvd4:6;
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u64 slim0baseclk:1;
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u64 rsvd:32;
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} part;
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u64 full;
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};
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union interrupt_reg_mrfld {
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struct {
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u64 done_interrupt:1;
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u64 busy_interrupt:1;
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u64 rsvd:62;
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} part;
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u64 full;
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};
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union sst_imr_reg_mrfld {
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struct {
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u64 done_interrupt:1;
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u64 busy_interrupt:1;
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u64 rsvd:62;
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} part;
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u64 full;
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};
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/**
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* struct sst_block - This structure is used to block a user/fw data call to another
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* fw/user call
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*
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* @condition: condition for blocking check
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* @ret_code: ret code when block is released
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* @data: data ptr
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* @size: size of data
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* @on: block condition
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* @msg_id: msg_id = msgid in mfld/ctp, mrfld = NULL
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* @drv_id: str_id in mfld/ctp, = drv_id in mrfld
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* @node: list head node
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*/
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struct sst_block {
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bool condition;
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int ret_code;
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void *data;
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u32 size;
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bool on;
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u32 msg_id;
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u32 drv_id;
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struct list_head node;
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};
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/**
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* struct stream_info - structure that holds the stream information
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*
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* @status : stream current state
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* @prev : stream prev state
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* @resume_status : stream current state to restore on resume
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* @resume_prev : stream prev state to restore on resume
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* @lock : stream mutex for protecting state
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* @alloc_param : parameters used for stream (re-)allocation
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* @pcm_substream : PCM substream
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* @period_elapsed : PCM period elapsed callback
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* @sfreq : stream sampling freq
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* @cumm_bytes : cummulative bytes decoded
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*/
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struct stream_info {
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unsigned int status;
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unsigned int prev;
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unsigned int resume_status;
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unsigned int resume_prev;
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struct mutex lock;
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struct snd_sst_alloc_mrfld alloc_param;
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void *pcm_substream;
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void (*period_elapsed)(void *pcm_substream);
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unsigned int sfreq;
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u32 cumm_bytes;
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void *compr_cb_param;
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void (*compr_cb)(void *compr_cb_param);
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void *drain_cb_param;
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void (*drain_notify)(void *drain_cb_param);
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unsigned int num_ch;
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unsigned int pipe_id;
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unsigned int task_id;
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};
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#define SST_FW_SIGN "$SST"
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#define SST_FW_LIB_SIGN "$LIB"
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/**
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* struct sst_fw_header - FW file headers
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*
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* @signature : FW signature
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* @file_size: size of fw image
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* @modules : # of modules
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* @file_format : version of header format
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* @reserved : reserved fields
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*/
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struct sst_fw_header {
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unsigned char signature[FW_SIGNATURE_SIZE];
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u32 file_size;
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u32 modules;
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u32 file_format;
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u32 reserved[4];
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};
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/**
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* struct fw_module_header - module header in FW
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*
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* @signature: module signature
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* @mod_size: size of module
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* @blocks: block count
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* @type: block type
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* @entry_point: module netry point
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*/
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struct fw_module_header {
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unsigned char signature[FW_SIGNATURE_SIZE];
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u32 mod_size;
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u32 blocks;
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u32 type;
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u32 entry_point;
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};
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/**
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* struct fw_block_info - block header for FW
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*
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* @type: block ram type I/D
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* @size: size of block
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* @ram_offset: offset in ram
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*/
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struct fw_block_info {
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enum sst_ram_type type;
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u32 size;
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u32 ram_offset;
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u32 rsvd;
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};
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struct sst_runtime_param {
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struct snd_sst_runtime_params param;
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};
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struct sst_sg_list {
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struct scatterlist *src;
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struct scatterlist *dst;
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int list_len;
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unsigned int sg_idx;
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};
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struct sst_memcpy_list {
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struct list_head memcpylist;
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void *dstn;
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const void *src;
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u32 size;
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bool is_io;
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};
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/*Firmware Module Information*/
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enum sst_lib_dwnld_status {
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SST_LIB_NOT_FOUND = 0,
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SST_LIB_FOUND,
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SST_LIB_DOWNLOADED,
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};
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struct sst_module_info {
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const char *name; /*Library name*/
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u32 id; /*Module ID*/
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u32 entry_pt; /*Module entry point*/
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u8 status; /*module status*/
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u8 rsvd1;
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u16 rsvd2;
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};
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/*
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* Structure for managing the Library Region(1.5MB)
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* in DDR in Merrifield
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*/
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struct sst_mem_mgr {
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phys_addr_t current_base;
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int avail;
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unsigned int count;
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};
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struct sst_ipc_reg {
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int ipcx;
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int ipcd;
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};
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struct sst_fw_save {
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void *iram; /* allocated via kvmalloc() */
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void *dram; /* allocated via kvmalloc() */
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void *sram; /* allocated via kvmalloc() */
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void *ddr; /* allocated via kvmalloc() */
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};
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/**
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* struct intel_sst_drv - driver ops
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*
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* @sst_state : current sst device state
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* @dev_id : device identifier, pci_id for pci devices and acpi_id for acpi
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* devices
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* @shim : SST shim pointer
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* @mailbox : SST mailbox pointer
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* @iram : SST IRAM pointer
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* @dram : SST DRAM pointer
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* @pdata : SST info passed as a part of pci platform data
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* @shim_phy_add : SST shim phy addr
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* @ipc_dispatch_list : ipc messages dispatched
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* @rx_list : to copy the process_reply/process_msg from DSP
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* @ipc_post_msg_wq : wq to post IPC messages context
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* @mad_ops : MAD driver operations registered
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* @mad_wq : MAD driver wq
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* @post_msg_wq : wq to post IPC messages
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* @streams : sst stream contexts
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* @list_lock : sst driver list lock (deprecated)
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* @ipc_spin_lock : spin lock to handle audio shim access and ipc queue
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* @block_lock : spin lock to add block to block_list and assign pvt_id
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* @rx_msg_lock : spin lock to handle the rx messages from the DSP
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* @scard_ops : sst card ops
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* @pci : sst pci device struture
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* @dev : pointer to current device struct
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* @sst_lock : sst device lock
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* @pvt_id : sst private id
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* @stream_cnt : total sst active stream count
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* @pb_streams : total active pb streams
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* @cp_streams : total active cp streams
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* @audio_start : audio status
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* @qos : PM Qos struct
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* firmware_name : Firmware / Library name
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*/
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struct intel_sst_drv {
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int sst_state;
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int irq_num;
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unsigned int dev_id;
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void __iomem *ddr;
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void __iomem *shim;
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void __iomem *mailbox;
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void __iomem *iram;
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void __iomem *dram;
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unsigned int mailbox_add;
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unsigned int iram_base;
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unsigned int dram_base;
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unsigned int shim_phy_add;
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unsigned int iram_end;
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unsigned int dram_end;
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unsigned int ddr_end;
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unsigned int ddr_base;
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unsigned int mailbox_recv_offset;
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struct list_head block_list;
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struct list_head ipc_dispatch_list;
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struct sst_platform_info *pdata;
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struct list_head rx_list;
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struct work_struct ipc_post_msg_wq;
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wait_queue_head_t wait_queue;
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struct workqueue_struct *post_msg_wq;
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unsigned int tstamp;
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/* str_id 0 is not used */
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struct stream_info streams[MAX_NUM_STREAMS+1];
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spinlock_t ipc_spin_lock;
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spinlock_t block_lock;
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spinlock_t rx_msg_lock;
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struct pci_dev *pci;
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struct device *dev;
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volatile long unsigned pvt_id;
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struct mutex sst_lock;
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unsigned int stream_cnt;
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unsigned int csr_value;
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void *fw_in_mem;
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struct sst_sg_list fw_sg_list, library_list;
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struct intel_sst_ops *ops;
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struct sst_info info;
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struct pm_qos_request *qos;
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unsigned int use_dma;
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unsigned int use_lli;
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atomic_t fw_clear_context;
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bool lib_dwnld_reqd;
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struct list_head memcpy_list;
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struct sst_ipc_reg ipc_reg;
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struct sst_mem_mgr lib_mem_mgr;
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/*
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* Holder for firmware name. Due to async call it needs to be
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* persistent till worker thread gets called
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*/
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char firmware_name[FW_NAME_SIZE];
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struct snd_sst_fw_version fw_version;
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struct sst_fw_save *fw_save;
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};
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/* misc definitions */
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#define FW_DWNL_ID 0x01
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struct intel_sst_ops {
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irqreturn_t (*interrupt)(int, void *);
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irqreturn_t (*irq_thread)(int, void *);
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void (*clear_interrupt)(struct intel_sst_drv *ctx);
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int (*start)(struct intel_sst_drv *ctx);
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int (*reset)(struct intel_sst_drv *ctx);
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void (*process_reply)(struct intel_sst_drv *ctx, struct ipc_post *msg);
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int (*post_message)(struct intel_sst_drv *ctx,
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struct ipc_post *msg, bool sync);
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void (*process_message)(struct ipc_post *msg);
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void (*set_bypass)(bool set);
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int (*save_dsp_context)(struct intel_sst_drv *sst);
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void (*restore_dsp_context)(void);
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int (*alloc_stream)(struct intel_sst_drv *ctx, void *params);
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void (*post_download)(struct intel_sst_drv *sst);
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};
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int sst_realloc_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_pause_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_resume_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_drop_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_free_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_start_stream(struct intel_sst_drv *sst_drv_ctx, int str_id);
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int sst_send_byte_stream_mrfld(struct intel_sst_drv *sst_drv_ctx,
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struct snd_sst_bytes_v2 *bytes);
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int sst_set_stream_param(int str_id, struct snd_sst_params *str_param);
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int sst_set_metadata(int str_id, char *params);
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int sst_get_stream(struct intel_sst_drv *ctx,
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struct snd_sst_params *str_param);
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int sst_get_stream_allocated(struct intel_sst_drv *ctx,
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struct snd_sst_params *str_param,
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struct snd_sst_lib_download **lib_dnld);
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int sst_drain_stream(struct intel_sst_drv *sst_drv_ctx,
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int str_id, bool partial_drain);
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int sst_post_message_mrfld(struct intel_sst_drv *sst_drv_ctx,
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struct ipc_post *ipc_msg, bool sync);
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void sst_process_reply_mrfld(struct intel_sst_drv *sst_drv_ctx, struct ipc_post *msg);
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int sst_start_mrfld(struct intel_sst_drv *sst_drv_ctx);
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int intel_sst_reset_dsp_mrfld(struct intel_sst_drv *sst_drv_ctx);
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void intel_sst_clear_intr_mrfld(struct intel_sst_drv *sst_drv_ctx);
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int sst_load_fw(struct intel_sst_drv *sst_drv_ctx);
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int sst_load_library(struct snd_sst_lib_download *lib, u8 ops);
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void sst_post_download_mrfld(struct intel_sst_drv *ctx);
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int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx);
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void sst_memcpy_free_resources(struct intel_sst_drv *sst_drv_ctx);
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int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
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struct sst_block *block);
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int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
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struct sst_block *block);
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int sst_create_ipc_msg(struct ipc_post **arg, bool large);
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int free_stream_context(struct intel_sst_drv *ctx, unsigned int str_id);
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void sst_clean_stream(struct stream_info *stream);
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int intel_sst_register_compress(struct intel_sst_drv *sst);
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int intel_sst_remove_compress(struct intel_sst_drv *sst);
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void sst_cdev_fragment_elapsed(struct intel_sst_drv *ctx, int str_id);
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int sst_send_sync_msg(int ipc, int str_id);
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int sst_get_num_channel(struct snd_sst_params *str_param);
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int sst_get_sfreq(struct snd_sst_params *str_param);
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int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params);
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void sst_restore_fw_context(void);
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struct sst_block *sst_create_block(struct intel_sst_drv *ctx,
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u32 msg_id, u32 drv_id);
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int sst_create_block_and_ipc_msg(struct ipc_post **arg, bool large,
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struct intel_sst_drv *sst_drv_ctx, struct sst_block **block,
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u32 msg_id, u32 drv_id);
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int sst_free_block(struct intel_sst_drv *ctx, struct sst_block *freed);
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int sst_wake_up_block(struct intel_sst_drv *ctx, int result,
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u32 drv_id, u32 ipc, void *data, u32 size);
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int sst_request_firmware_async(struct intel_sst_drv *ctx);
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int sst_driver_ops(struct intel_sst_drv *sst);
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struct sst_platform_info *sst_get_acpi_driver_data(const char *hid);
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void sst_firmware_load_cb(const struct firmware *fw, void *context);
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int sst_prepare_and_post_msg(struct intel_sst_drv *sst,
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int task_id, int ipc_msg, int cmd_id, int pipe_id,
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size_t mbox_data_len, const void *mbox_data, void **data,
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bool large, bool fill_dsp, bool sync, bool response);
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void sst_process_pending_msg(struct work_struct *work);
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int sst_assign_pvt_id(struct intel_sst_drv *drv);
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int sst_validate_strid(struct intel_sst_drv *sst_drv_ctx, int str_id);
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struct stream_info *get_stream_info(struct intel_sst_drv *sst_drv_ctx,
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int str_id);
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int get_stream_id_mrfld(struct intel_sst_drv *sst_drv_ctx,
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u32 pipe_id);
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u32 relocate_imr_addr_mrfld(u32 base_addr);
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void sst_add_to_dispatch_list_and_post(struct intel_sst_drv *sst,
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struct ipc_post *msg);
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int sst_pm_runtime_put(struct intel_sst_drv *sst_drv);
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int sst_shim_write(void __iomem *addr, int offset, int value);
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u32 sst_shim_read(void __iomem *addr, int offset);
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u64 sst_reg_read64(void __iomem *addr, int offset);
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int sst_shim_write64(void __iomem *addr, int offset, u64 value);
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u64 sst_shim_read64(void __iomem *addr, int offset);
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void sst_set_fw_state_locked(
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struct intel_sst_drv *sst_drv_ctx, int sst_state);
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void sst_fill_header_mrfld(union ipc_header_mrfld *header,
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int msg, int task_id, int large, int drv_id);
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void sst_fill_header_dsp(struct ipc_dsp_hdr *dsp, int msg,
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int pipe_id, int len);
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int sst_register(struct device *);
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int sst_unregister(struct device *);
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int sst_alloc_drv_context(struct intel_sst_drv **ctx,
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struct device *dev, unsigned int dev_id);
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int sst_context_init(struct intel_sst_drv *ctx);
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void sst_context_cleanup(struct intel_sst_drv *ctx);
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void sst_configure_runtime_pm(struct intel_sst_drv *ctx);
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void memcpy32_toio(void __iomem *dst, const void *src, int count);
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void memcpy32_fromio(void *dst, const void __iomem *src, int count);
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#endif
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