1 /* 2 * Skylake SST DSP Support 3 * 4 * Copyright (C) 2014-15, Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as version 2, as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * General Public License for more details. 14 */ 15 16 #ifndef __SKL_SST_DSP_H__ 17 #define __SKL_SST_DSP_H__ 18 19 #include <linux/interrupt.h> 20 #include <linux/uuid.h> 21 #include <linux/firmware.h> 22 #include <sound/memalloc.h> 23 #include "skl-sst-cldma.h" 24 25 struct sst_dsp; 26 struct skl_sst; 27 struct sst_dsp_device; 28 struct skl_lib_info; 29 30 /* Intel HD Audio General DSP Registers */ 31 #define SKL_ADSP_GEN_BASE 0x0 32 #define SKL_ADSP_REG_ADSPCS (SKL_ADSP_GEN_BASE + 0x04) 33 #define SKL_ADSP_REG_ADSPIC (SKL_ADSP_GEN_BASE + 0x08) 34 #define SKL_ADSP_REG_ADSPIS (SKL_ADSP_GEN_BASE + 0x0C) 35 #define SKL_ADSP_REG_ADSPIC2 (SKL_ADSP_GEN_BASE + 0x10) 36 #define SKL_ADSP_REG_ADSPIS2 (SKL_ADSP_GEN_BASE + 0x14) 37 38 /* Intel HD Audio Inter-Processor Communication Registers */ 39 #define SKL_ADSP_IPC_BASE 0x40 40 #define SKL_ADSP_REG_HIPCT (SKL_ADSP_IPC_BASE + 0x00) 41 #define SKL_ADSP_REG_HIPCTE (SKL_ADSP_IPC_BASE + 0x04) 42 #define SKL_ADSP_REG_HIPCI (SKL_ADSP_IPC_BASE + 0x08) 43 #define SKL_ADSP_REG_HIPCIE (SKL_ADSP_IPC_BASE + 0x0C) 44 #define SKL_ADSP_REG_HIPCCTL (SKL_ADSP_IPC_BASE + 0x10) 45 46 /* HIPCI */ 47 #define SKL_ADSP_REG_HIPCI_BUSY BIT(31) 48 49 /* HIPCIE */ 50 #define SKL_ADSP_REG_HIPCIE_DONE BIT(30) 51 52 /* HIPCCTL */ 53 #define SKL_ADSP_REG_HIPCCTL_DONE BIT(1) 54 #define SKL_ADSP_REG_HIPCCTL_BUSY BIT(0) 55 56 /* HIPCT */ 57 #define SKL_ADSP_REG_HIPCT_BUSY BIT(31) 58 59 /* FW base IDs */ 60 #define SKL_INSTANCE_ID 0 61 #define SKL_BASE_FW_MODULE_ID 0 62 63 /* Intel HD Audio SRAM Window 1 */ 64 #define SKL_ADSP_SRAM1_BASE 0xA000 65 66 #define SKL_ADSP_MMIO_LEN 0x10000 67 68 #define SKL_ADSP_W0_STAT_SZ 0x1000 69 70 #define SKL_ADSP_W0_UP_SZ 0x1000 71 72 #define SKL_ADSP_W1_SZ 0x1000 73 74 #define SKL_FW_STS_MASK 0xf 75 76 #define SKL_FW_INIT 0x1 77 #define SKL_FW_RFW_START 0xf 78 79 #define SKL_ADSPIC_IPC 1 80 #define SKL_ADSPIS_IPC 1 81 82 /* Core ID of core0 */ 83 #define SKL_DSP_CORE0_ID 0 84 85 /* Mask for a given core index, c = 0.. number of supported cores - 1 */ 86 #define SKL_DSP_CORE_MASK(c) BIT(c) 87 88 /* 89 * Core 0 mask = SKL_DSP_CORE_MASK(0); Defined separately 90 * since Core0 is primary core and it is used often 91 */ 92 #define SKL_DSP_CORE0_MASK BIT(0) 93 94 /* 95 * Mask for a given number of cores 96 * nc = number of supported cores 97 */ 98 #define SKL_DSP_CORES_MASK(nc) GENMASK((nc - 1), 0) 99 100 /* ADSPCS - Audio DSP Control & Status */ 101 102 /* 103 * Core Reset - asserted high 104 * CRST Mask for a given core mask pattern, cm 105 */ 106 #define SKL_ADSPCS_CRST_SHIFT 0 107 #define SKL_ADSPCS_CRST_MASK(cm) ((cm) << SKL_ADSPCS_CRST_SHIFT) 108 109 /* 110 * Core run/stall - when set to '1' core is stalled 111 * CSTALL Mask for a given core mask pattern, cm 112 */ 113 #define SKL_ADSPCS_CSTALL_SHIFT 8 114 #define SKL_ADSPCS_CSTALL_MASK(cm) ((cm) << SKL_ADSPCS_CSTALL_SHIFT) 115 116 /* 117 * Set Power Active - when set to '1' turn cores on 118 * SPA Mask for a given core mask pattern, cm 119 */ 120 #define SKL_ADSPCS_SPA_SHIFT 16 121 #define SKL_ADSPCS_SPA_MASK(cm) ((cm) << SKL_ADSPCS_SPA_SHIFT) 122 123 /* 124 * Current Power Active - power status of cores, set by hardware 125 * CPA Mask for a given core mask pattern, cm 126 */ 127 #define SKL_ADSPCS_CPA_SHIFT 24 128 #define SKL_ADSPCS_CPA_MASK(cm) ((cm) << SKL_ADSPCS_CPA_SHIFT) 129 130 /* DSP Core state */ 131 enum skl_dsp_states { 132 SKL_DSP_RUNNING = 1, 133 /* Running in D0i3 state; can be in streaming or non-streaming D0i3 */ 134 SKL_DSP_RUNNING_D0I3, /* Running in D0i3 state*/ 135 SKL_DSP_RESET, 136 }; 137 138 /* D0i3 substates */ 139 enum skl_dsp_d0i3_states { 140 SKL_DSP_D0I3_NONE = -1, /* No D0i3 */ 141 SKL_DSP_D0I3_NON_STREAMING = 0, 142 SKL_DSP_D0I3_STREAMING = 1, 143 }; 144 145 struct skl_dsp_fw_ops { 146 int (*load_fw)(struct sst_dsp *ctx); 147 /* FW module parser/loader */ 148 int (*load_library)(struct sst_dsp *ctx, 149 struct skl_lib_info *linfo, int lib_count); 150 int (*parse_fw)(struct sst_dsp *ctx); 151 int (*set_state_D0)(struct sst_dsp *ctx, unsigned int core_id); 152 int (*set_state_D3)(struct sst_dsp *ctx, unsigned int core_id); 153 int (*set_state_D0i3)(struct sst_dsp *ctx); 154 int (*set_state_D0i0)(struct sst_dsp *ctx); 155 unsigned int (*get_fw_errcode)(struct sst_dsp *ctx); 156 int (*load_mod)(struct sst_dsp *ctx, u16 mod_id, u8 *mod_name); 157 int (*unload_mod)(struct sst_dsp *ctx, u16 mod_id); 158 159 }; 160 161 struct skl_dsp_loader_ops { 162 int stream_tag; 163 164 int (*alloc_dma_buf)(struct device *dev, 165 struct snd_dma_buffer *dmab, size_t size); 166 int (*free_dma_buf)(struct device *dev, 167 struct snd_dma_buffer *dmab); 168 int (*prepare)(struct device *dev, unsigned int format, 169 unsigned int byte_size, 170 struct snd_dma_buffer *bufp); 171 int (*trigger)(struct device *dev, bool start, int stream_tag); 172 173 int (*cleanup)(struct device *dev, struct snd_dma_buffer *dmab, 174 int stream_tag); 175 }; 176 177 #define MAX_INSTANCE_BUFF 2 178 179 struct uuid_module { 180 uuid_le uuid; 181 int id; 182 int is_loadable; 183 int max_instance; 184 u64 pvt_id[MAX_INSTANCE_BUFF]; 185 int *instance_id; 186 187 struct list_head list; 188 }; 189 190 struct skl_load_module_info { 191 u16 mod_id; 192 const struct firmware *fw; 193 }; 194 195 struct skl_module_table { 196 struct skl_load_module_info *mod_info; 197 unsigned int usage_cnt; 198 struct list_head list; 199 }; 200 201 void skl_cldma_process_intr(struct sst_dsp *ctx); 202 void skl_cldma_int_disable(struct sst_dsp *ctx); 203 int skl_cldma_prepare(struct sst_dsp *ctx); 204 int skl_cldma_wait_interruptible(struct sst_dsp *ctx); 205 206 void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state); 207 struct sst_dsp *skl_dsp_ctx_init(struct device *dev, 208 struct sst_dsp_device *sst_dev, int irq); 209 int skl_dsp_acquire_irq(struct sst_dsp *sst); 210 bool is_skl_dsp_running(struct sst_dsp *ctx); 211 212 unsigned int skl_dsp_get_enabled_cores(struct sst_dsp *ctx); 213 void skl_dsp_init_core_state(struct sst_dsp *ctx); 214 int skl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core_mask); 215 int skl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core_mask); 216 int skl_dsp_core_power_up(struct sst_dsp *ctx, unsigned int core_mask); 217 int skl_dsp_core_power_down(struct sst_dsp *ctx, unsigned int core_mask); 218 int skl_dsp_core_unset_reset_state(struct sst_dsp *ctx, 219 unsigned int core_mask); 220 int skl_dsp_start_core(struct sst_dsp *ctx, unsigned int core_mask); 221 222 irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id); 223 int skl_dsp_wake(struct sst_dsp *ctx); 224 int skl_dsp_sleep(struct sst_dsp *ctx); 225 void skl_dsp_free(struct sst_dsp *dsp); 226 227 int skl_dsp_get_core(struct sst_dsp *ctx, unsigned int core_id); 228 int skl_dsp_put_core(struct sst_dsp *ctx, unsigned int core_id); 229 230 int skl_dsp_boot(struct sst_dsp *ctx); 231 int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq, 232 const char *fw_name, struct skl_dsp_loader_ops dsp_ops, 233 struct skl_sst **dsp); 234 int bxt_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq, 235 const char *fw_name, struct skl_dsp_loader_ops dsp_ops, 236 struct skl_sst **dsp); 237 int skl_sst_init_fw(struct device *dev, struct skl_sst *ctx); 238 int bxt_sst_init_fw(struct device *dev, struct skl_sst *ctx); 239 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx); 240 void bxt_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx); 241 242 int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw, 243 unsigned int offset, int index); 244 int skl_get_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int instance_id); 245 int skl_put_pvt_id(struct skl_sst *ctx, uuid_le *uuid_mod, int *pvt_id); 246 int skl_get_pvt_instance_id_map(struct skl_sst *ctx, 247 int module_id, int instance_id); 248 void skl_freeup_uuid_list(struct skl_sst *ctx); 249 250 int skl_dsp_strip_extended_manifest(struct firmware *fw); 251 void skl_dsp_enable_notification(struct skl_sst *ctx, bool enable); 252 253 void skl_dsp_set_astate_cfg(struct skl_sst *ctx, u32 cnt, void *data); 254 255 int skl_sst_ctx_init(struct device *dev, int irq, const char *fw_name, 256 struct skl_dsp_loader_ops dsp_ops, struct skl_sst **dsp, 257 struct sst_dsp_device *skl_dev); 258 int skl_prepare_lib_load(struct skl_sst *skl, struct skl_lib_info *linfo, 259 struct firmware *stripped_fw, 260 unsigned int hdr_offset, int index); 261 void skl_release_library(struct skl_lib_info *linfo, int lib_count); 262 263 #endif /*__SKL_SST_DSP_H__*/ 264