1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Cannonlake SST DSP Support 4 * 5 * Copyright (C) 2016-17, Intel Corporation. 6 */ 7 8 #ifndef __CNL_SST_DSP_H__ 9 #define __CNL_SST_DSP_H__ 10 11 struct sst_dsp; 12 struct sst_dsp_device; 13 struct sst_generic_ipc; 14 15 /* Intel HD Audio General DSP Registers */ 16 #define CNL_ADSP_GEN_BASE 0x0 17 #define CNL_ADSP_REG_ADSPCS (CNL_ADSP_GEN_BASE + 0x04) 18 #define CNL_ADSP_REG_ADSPIC (CNL_ADSP_GEN_BASE + 0x08) 19 #define CNL_ADSP_REG_ADSPIS (CNL_ADSP_GEN_BASE + 0x0c) 20 21 /* Intel HD Audio Inter-Processor Communication Registers */ 22 #define CNL_ADSP_IPC_BASE 0xc0 23 #define CNL_ADSP_REG_HIPCTDR (CNL_ADSP_IPC_BASE + 0x00) 24 #define CNL_ADSP_REG_HIPCTDA (CNL_ADSP_IPC_BASE + 0x04) 25 #define CNL_ADSP_REG_HIPCTDD (CNL_ADSP_IPC_BASE + 0x08) 26 #define CNL_ADSP_REG_HIPCIDR (CNL_ADSP_IPC_BASE + 0x10) 27 #define CNL_ADSP_REG_HIPCIDA (CNL_ADSP_IPC_BASE + 0x14) 28 #define CNL_ADSP_REG_HIPCIDD (CNL_ADSP_IPC_BASE + 0x18) 29 #define CNL_ADSP_REG_HIPCCTL (CNL_ADSP_IPC_BASE + 0x28) 30 31 /* HIPCTDR */ 32 #define CNL_ADSP_REG_HIPCTDR_BUSY BIT(31) 33 34 /* HIPCTDA */ 35 #define CNL_ADSP_REG_HIPCTDA_DONE BIT(31) 36 37 /* HIPCIDR */ 38 #define CNL_ADSP_REG_HIPCIDR_BUSY BIT(31) 39 40 /* HIPCIDA */ 41 #define CNL_ADSP_REG_HIPCIDA_DONE BIT(31) 42 43 /* CNL HIPCCTL */ 44 #define CNL_ADSP_REG_HIPCCTL_DONE BIT(1) 45 #define CNL_ADSP_REG_HIPCCTL_BUSY BIT(0) 46 47 /* CNL HIPCT */ 48 #define CNL_ADSP_REG_HIPCT_BUSY BIT(31) 49 50 /* Intel HD Audio SRAM Window 1 */ 51 #define CNL_ADSP_SRAM1_BASE 0xa0000 52 53 #define CNL_ADSP_MMIO_LEN 0x10000 54 55 #define CNL_ADSP_W0_STAT_SZ 0x1000 56 57 #define CNL_ADSP_W0_UP_SZ 0x1000 58 59 #define CNL_ADSP_W1_SZ 0x1000 60 61 #define CNL_FW_STS_MASK 0xf 62 63 #define CNL_ADSPIC_IPC 0x1 64 #define CNL_ADSPIS_IPC 0x1 65 66 #define CNL_DSP_CORES 4 67 #define CNL_DSP_CORES_MASK ((1 << CNL_DSP_CORES) - 1) 68 69 /* core reset - asserted high */ 70 #define CNL_ADSPCS_CRST_SHIFT 0 71 #define CNL_ADSPCS_CRST(x) (x << CNL_ADSPCS_CRST_SHIFT) 72 73 /* core run/stall - when set to 1 core is stalled */ 74 #define CNL_ADSPCS_CSTALL_SHIFT 8 75 #define CNL_ADSPCS_CSTALL(x) (x << CNL_ADSPCS_CSTALL_SHIFT) 76 77 /* set power active - when set to 1 turn core on */ 78 #define CNL_ADSPCS_SPA_SHIFT 16 79 #define CNL_ADSPCS_SPA(x) (x << CNL_ADSPCS_SPA_SHIFT) 80 81 /* current power active - power status of cores, set by hardware */ 82 #define CNL_ADSPCS_CPA_SHIFT 24 83 #define CNL_ADSPCS_CPA(x) (x << CNL_ADSPCS_CPA_SHIFT) 84 85 int cnl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core); 86 int cnl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core); 87 irqreturn_t cnl_dsp_sst_interrupt(int irq, void *dev_id); 88 void cnl_dsp_free(struct sst_dsp *dsp); 89 90 void cnl_ipc_int_enable(struct sst_dsp *ctx); 91 void cnl_ipc_int_disable(struct sst_dsp *ctx); 92 void cnl_ipc_op_int_enable(struct sst_dsp *ctx); 93 void cnl_ipc_op_int_disable(struct sst_dsp *ctx); 94 bool cnl_ipc_int_status(struct sst_dsp *ctx); 95 void cnl_ipc_free(struct sst_generic_ipc *ipc); 96 97 int cnl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq, 98 const char *fw_name, struct skl_dsp_loader_ops dsp_ops, 99 struct skl_dev **dsp); 100 int cnl_sst_init_fw(struct device *dev, struct skl_dev *skl); 101 void cnl_sst_dsp_cleanup(struct device *dev, struct skl_dev *skl); 102 103 #endif /*__CNL_SST_DSP_H__*/ 104