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* Skylake SST DSP Support
*
* Copyright (C) 2014-15, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef __SKL_SST_DSP_H__
#define __SKL_SST_DSP_H__
#include <linux/interrupt.h>
#include <sound/memalloc.h>
#include "skl-sst-cldma.h"
struct sst_dsp;
struct skl_sst;
struct sst_dsp_device;
/* Intel HD Audio General DSP Registers */
#define SKL_ADSP_GEN_BASE 0x0
#define SKL_ADSP_REG_ADSPCS (SKL_ADSP_GEN_BASE + 0x04)
#define SKL_ADSP_REG_ADSPIC (SKL_ADSP_GEN_BASE + 0x08)
#define SKL_ADSP_REG_ADSPIS (SKL_ADSP_GEN_BASE + 0x0C)
#define SKL_ADSP_REG_ADSPIC2 (SKL_ADSP_GEN_BASE + 0x10)
#define SKL_ADSP_REG_ADSPIS2 (SKL_ADSP_GEN_BASE + 0x14)
/* Intel HD Audio Inter-Processor Communication Registers */
#define SKL_ADSP_IPC_BASE 0x40
#define SKL_ADSP_REG_HIPCT (SKL_ADSP_IPC_BASE + 0x00)
#define SKL_ADSP_REG_HIPCTE (SKL_ADSP_IPC_BASE + 0x04)
#define SKL_ADSP_REG_HIPCI (SKL_ADSP_IPC_BASE + 0x08)
#define SKL_ADSP_REG_HIPCIE (SKL_ADSP_IPC_BASE + 0x0C)
#define SKL_ADSP_REG_HIPCCTL (SKL_ADSP_IPC_BASE + 0x10)
/* HIPCI */
#define SKL_ADSP_REG_HIPCI_BUSY BIT(31)
/* HIPCIE */
#define SKL_ADSP_REG_HIPCIE_DONE BIT(30)
/* HIPCCTL */
#define SKL_ADSP_REG_HIPCCTL_DONE BIT(1)
#define SKL_ADSP_REG_HIPCCTL_BUSY BIT(0)
/* HIPCT */
#define SKL_ADSP_REG_HIPCT_BUSY BIT(31)
/* Intel HD Audio SRAM Window 1 */
#define SKL_ADSP_SRAM1_BASE 0xA000
#define SKL_ADSP_MMIO_LEN 0x10000
#define SKL_ADSP_W0_STAT_SZ 0x1000
#define SKL_ADSP_W0_UP_SZ 0x1000
#define SKL_ADSP_W1_SZ 0x1000
#define SKL_FW_STS_MASK 0xf
#define SKL_FW_INIT 0x1
#define SKL_FW_RFW_START 0xf
#define SKL_ADSPIC_IPC 1
#define SKL_ADSPIS_IPC 1
/* ADSPCS - Audio DSP Control & Status */
#define SKL_DSP_CORES 1
#define SKL_DSP_CORE0_MASK 1
#define SKL_DSP_CORES_MASK ((1 << SKL_DSP_CORES) - 1)
/* Core Reset - asserted high */
#define SKL_ADSPCS_CRST_SHIFT 0
#define SKL_ADSPCS_CRST_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_CRST_SHIFT)
#define SKL_ADSPCS_CRST(x) ((x << SKL_ADSPCS_CRST_SHIFT) & SKL_ADSPCS_CRST_MASK)
/* Core run/stall - when set to '1' core is stalled */
#define SKL_ADSPCS_CSTALL_SHIFT 8
#define SKL_ADSPCS_CSTALL_MASK (SKL_DSP_CORES_MASK << \
SKL_ADSPCS_CSTALL_SHIFT)
#define SKL_ADSPCS_CSTALL(x) ((x << SKL_ADSPCS_CSTALL_SHIFT) & \
SKL_ADSPCS_CSTALL_MASK)
/* Set Power Active - when set to '1' turn cores on */
#define SKL_ADSPCS_SPA_SHIFT 16
#define SKL_ADSPCS_SPA_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_SPA_SHIFT)
#define SKL_ADSPCS_SPA(x) ((x << SKL_ADSPCS_SPA_SHIFT) & SKL_ADSPCS_SPA_MASK)
/* Current Power Active - power status of cores, set by hardware */
#define SKL_ADSPCS_CPA_SHIFT 24
#define SKL_ADSPCS_CPA_MASK (SKL_DSP_CORES_MASK << SKL_ADSPCS_CPA_SHIFT)
#define SKL_ADSPCS_CPA(x) ((x << SKL_ADSPCS_CPA_SHIFT) & SKL_ADSPCS_CPA_MASK)
#define SST_DSP_POWER_D0 0x0 /* full On */
#define SST_DSP_POWER_D3 0x3 /* Off */
enum skl_dsp_states {
SKL_DSP_RUNNING = 1,
SKL_DSP_RESET,
};
struct skl_dsp_fw_ops {
int (*load_fw)(struct sst_dsp *ctx);
/* FW module parser/loader */
int (*parse_fw)(struct sst_dsp *ctx);
int (*set_state_D0)(struct sst_dsp *ctx);
int (*set_state_D3)(struct sst_dsp *ctx);
unsigned int (*get_fw_errcode)(struct sst_dsp *ctx);
int (*load_mod)(struct sst_dsp *ctx, u16 mod_id, char *mod_name);
int (*unload_mod)(struct sst_dsp *ctx, u16 mod_id);
};
struct skl_dsp_loader_ops {
int (*alloc_dma_buf)(struct device *dev,
struct snd_dma_buffer *dmab, size_t size);
int (*free_dma_buf)(struct device *dev,
struct snd_dma_buffer *dmab);
};
struct skl_load_module_info {
u16 mod_id;
const struct firmware *fw;
};
struct skl_module_table {
struct skl_load_module_info *mod_info;
unsigned int usage_cnt;
struct list_head list;
};
void skl_cldma_process_intr(struct sst_dsp *ctx);
void skl_cldma_int_disable(struct sst_dsp *ctx);
int skl_cldma_prepare(struct sst_dsp *ctx);
void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state);
struct sst_dsp *skl_dsp_ctx_init(struct device *dev,
struct sst_dsp_device *sst_dev, int irq);
int skl_dsp_disable_core(struct sst_dsp *ctx);
bool is_skl_dsp_running(struct sst_dsp *ctx);
irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id);
int skl_dsp_wake(struct sst_dsp *ctx);
int skl_dsp_sleep(struct sst_dsp *ctx);
void skl_dsp_free(struct sst_dsp *dsp);
int skl_dsp_boot(struct sst_dsp *ctx);
int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
struct skl_sst **dsp);
void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
#endif /*__SKL_SST_DSP_H__*/
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