2 * Intel Smart Sound Technology
4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
17 #ifndef __SOUND_SOC_SST_DSP_PRIV_H
18 #define __SOUND_SOC_SST_DSP_PRIV_H
20 #include <linux/kernel.h>
21 #include <linux/types.h>
22 #include <linux/interrupt.h>
23 #include <linux/firmware.h>
29 /* do we need to remove or keep */
30 #define DSP_DRAM_ADDR_OFFSET 0x400000
33 * DSP Operations exported by platform Audio DSP driver.
36 /* DSP core boot / reset */
37 void (*boot)(struct sst_dsp *);
38 void (*reset)(struct sst_dsp *);
41 void (*write)(void __iomem *addr, u32 offset, u32 value);
42 u32 (*read)(void __iomem *addr, u32 offset);
43 void (*write64)(void __iomem *addr, u32 offset, u64 value);
44 u64 (*read64)(void __iomem *addr, u32 offset);
47 void (*ram_read)(struct sst_dsp *sst, void *dest, void __iomem *src,
49 void (*ram_write)(struct sst_dsp *sst, void __iomem *dest, void *src,
52 void (*dump)(struct sst_dsp *);
55 irqreturn_t (*irq_handler)(int irq, void *context);
57 /* SST init and free */
58 int (*init)(struct sst_dsp *sst, struct sst_pdata *pdata);
59 void (*free)(struct sst_dsp *sst);
61 /* FW module parser/loader */
62 int (*parse_fw)(struct sst_fw *sst_fw);
66 * Audio DSP memory offsets and addresses.
77 void __iomem *pci_cfg;
82 * Audio DSP Mailbox configuration.
85 void __iomem *in_base;
86 void __iomem *out_base;
92 * Audio DSP memory block types.
102 * Audio DSP Generic Firmware File.
104 * SST Firmware files can consist of 1..N modules. This generic structure is
105 * used to manage each firmware file and it's modules regardless of SST firmware
106 * type. A SST driver may load multiple FW files.
111 /* base addresses of FW file data */
112 dma_addr_t dmable_fw_paddr; /* physical address of fw data */
113 void *dma_buf; /* virtual address of fw data */
114 u32 size; /* size of fw data */
117 struct list_head list; /* DSP list of FW */
118 struct list_head module_list; /* FW list of modules */
120 void *private; /* core doesn't touch this */
124 * Audio DSP Generic Module Template.
126 * Used to define and register a new FW module. This data is extracted from
127 * FW module header information.
129 struct sst_module_template {
131 u32 entry; /* entry point */
137 * Block Allocator - Used to allocate blocks of DSP memory.
139 struct sst_block_allocator {
143 enum sst_mem_type type;
147 * Runtime Module Instance - A module object can be instanciated multiple
148 * times within the DSP FW.
150 struct sst_module_runtime {
153 struct sst_module *module; /* parent module we belong too */
155 u32 persistent_offset; /* private memory offset */
158 struct list_head list;
159 struct list_head block_list; /* list of blocks used */
163 * Runtime Module Context - The runtime context must be manually stored by the
164 * driver prior to enter S3 and restored after leaving S3. This should really be
165 * part of the memory context saved by the enter D3 message IPC ???
167 struct sst_module_runtime_context {
168 dma_addr_t dma_buffer;
173 * Audio DSP Generic Module.
175 * Each Firmware file can consist of 1..N modules. A module can span multiple
176 * ADSP memory blocks. The simplest FW will be a file with 1 module. A module
177 * can be instanciated multiple times in the DSP.
181 struct sst_fw *sst_fw; /* parent FW we belong too */
183 /* module configuration */
185 u32 entry; /* module entry point */
186 s32 offset; /* module offset in firmware file */
187 u32 size; /* module size */
188 u32 scratch_size; /* global scratch memory required */
189 u32 persistent_size; /* private memory required */
190 enum sst_mem_type type; /* destination memory type */
191 u32 data_offset; /* offset in ADSP memory space */
192 void *data; /* module data */
195 u32 usage_count; /* can be unloaded if count == 0 */
196 void *private; /* core doesn't touch this */
199 struct list_head block_list; /* Module list of blocks in use */
200 struct list_head list; /* DSP list of modules */
201 struct list_head list_fw; /* FW list of modules */
202 struct list_head runtime_list; /* list of runtime module objects*/
206 * SST Memory Block operations.
208 struct sst_block_ops {
209 int (*enable)(struct sst_mem_block *block);
210 int (*disable)(struct sst_mem_block *block);
214 * SST Generic Memory Block.
216 * SST ADP memory has multiple IRAM and DRAM blocks. Some ADSP blocks can be
219 struct sst_mem_block {
221 struct sst_module *module; /* module that uses this block */
224 u32 offset; /* offset from base */
225 u32 size; /* block size */
226 u32 index; /* block index 0..N */
227 enum sst_mem_type type; /* block memory type IRAM/DRAM */
228 struct sst_block_ops *ops; /* block operations, if any */
231 u32 bytes_used; /* bytes in use by modules */
232 void *private; /* generic core does not touch this */
233 int users; /* number of modules using this block */
236 struct list_head module_list; /* Module list of blocks */
237 struct list_head list; /* Map list of free/used blocks */
241 * Generic SST Shim Interface.
246 struct sst_dsp_device *sst_dev;
247 spinlock_t spinlock; /* IPC locking */
248 struct mutex mutex; /* DSP FW lock */
250 struct device *dma_dev;
251 void *thread_context;
255 /* list of free and used ADSP memory blocks */
256 struct list_head used_block_list;
257 struct list_head free_block_list;
263 struct dentry *debugfs_root;
266 struct sst_addr addr;
269 struct sst_mailbox mailbox;
271 /* SST FW files loaded and their modules */
272 struct list_head module_list;
273 struct list_head fw_list;
276 struct list_head scratch_block_list;
281 struct sst_pdata *pdata;
288 /* Size optimised DRAM/IRAM memcpy */
289 static inline void sst_dsp_write(struct sst_dsp *sst, void *src,
290 u32 dest_offset, size_t bytes)
292 sst->ops->ram_write(sst, sst->addr.lpe + dest_offset, src, bytes);
295 static inline void sst_dsp_read(struct sst_dsp *sst, void *dest,
296 u32 src_offset, size_t bytes)
298 sst->ops->ram_read(sst, dest, sst->addr.lpe + src_offset, bytes);
301 static inline void *sst_dsp_get_thread_context(struct sst_dsp *sst)
303 return sst->thread_context;
306 /* Create/Free FW files - can contain multiple modules */
307 struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
308 const struct firmware *fw, void *private);
309 void sst_fw_free(struct sst_fw *sst_fw);
310 void sst_fw_free_all(struct sst_dsp *dsp);
311 int sst_fw_reload(struct sst_fw *sst_fw);
312 void sst_fw_unload(struct sst_fw *sst_fw);
314 /* Create/Free firmware modules */
315 struct sst_module *sst_module_new(struct sst_fw *sst_fw,
316 struct sst_module_template *template, void *private);
317 void sst_module_free(struct sst_module *module);
318 struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id);
319 int sst_module_alloc_blocks(struct sst_module *module);
320 int sst_module_free_blocks(struct sst_module *module);
322 /* Create/Free firmware module runtime instances */
323 struct sst_module_runtime *sst_module_runtime_new(struct sst_module *module,
324 int id, void *private);
325 void sst_module_runtime_free(struct sst_module_runtime *runtime);
326 struct sst_module_runtime *sst_module_runtime_get_from_id(
327 struct sst_module *module, u32 id);
328 int sst_module_runtime_alloc_blocks(struct sst_module_runtime *runtime,
330 int sst_module_runtime_free_blocks(struct sst_module_runtime *runtime);
331 int sst_module_runtime_save(struct sst_module_runtime *runtime,
332 struct sst_module_runtime_context *context);
333 int sst_module_runtime_restore(struct sst_module_runtime *runtime,
334 struct sst_module_runtime_context *context);
336 /* generic block allocation */
337 int sst_alloc_blocks(struct sst_dsp *dsp, struct sst_block_allocator *ba,
338 struct list_head *block_list);
339 int sst_free_blocks(struct sst_dsp *dsp, struct list_head *block_list);
341 /* scratch allocation */
342 int sst_block_alloc_scratch(struct sst_dsp *dsp);
343 void sst_block_free_scratch(struct sst_dsp *dsp);
345 /* Register the DSPs memory blocks - would be nice to read from ACPI */
346 struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
347 u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
349 void sst_mem_block_unregister_all(struct sst_dsp *dsp);
351 /* Create/Free DMA resources */
352 int sst_dma_new(struct sst_dsp *sst);
353 void sst_dma_free(struct sst_dma *dma);
355 u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
356 enum sst_mem_type type);