2 * skl-sst.c - HDA DSP library functions for SKL platform
4 * Copyright (C) 2014-15, Intel Corporation.
5 * Author:Rafal Redzimski <rafal.f.redzimski@intel.com>
6 * Jeeja KP <jeeja.kp@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as version 2, as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
19 #include <linux/module.h>
20 #include <linux/delay.h>
21 #include <linux/device.h>
22 #include <linux/err.h>
23 #include "../common/sst-dsp.h"
24 #include "../common/sst-dsp-priv.h"
25 #include "../common/sst-ipc.h"
26 #include "skl-sst-ipc.h"
28 #define SKL_BASEFW_TIMEOUT 300
29 #define SKL_INIT_TIMEOUT 1000
31 /* Intel HD Audio SRAM Window 0*/
32 #define SKL_ADSP_SRAM0_BASE 0x8000
34 /* Firmware status window */
35 #define SKL_ADSP_FW_STATUS SKL_ADSP_SRAM0_BASE
36 #define SKL_ADSP_ERROR_CODE (SKL_ADSP_FW_STATUS + 0x4)
38 #define SKL_NUM_MODULES 1
40 static bool skl_check_fw_status(struct sst_dsp *ctx, u32 status)
44 cur_sts = sst_dsp_shim_read(ctx, SKL_ADSP_FW_STATUS) & SKL_FW_STS_MASK;
46 return (cur_sts == status);
49 static int skl_transfer_firmware(struct sst_dsp *ctx,
50 const void *basefw, u32 base_fw_size)
54 ret = ctx->cl_dev.ops.cl_copy_to_dmabuf(ctx, basefw, base_fw_size);
58 ret = sst_dsp_register_poll(ctx,
65 ctx->cl_dev.ops.cl_stop_dma(ctx);
70 static int skl_load_base_firmware(struct sst_dsp *ctx)
73 struct skl_sst *skl = ctx->thread_context;
76 skl->boot_complete = false;
77 init_waitqueue_head(&skl->boot_wait);
79 if (ctx->fw == NULL) {
80 ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev);
82 dev_err(ctx->dev, "Request firmware failed %d\n", ret);
83 skl_dsp_disable_core(ctx);
88 ret = skl_dsp_boot(ctx);
90 dev_err(ctx->dev, "Boot dsp core failed ret: %d", ret);
91 goto skl_load_base_firmware_failed;
94 ret = skl_cldma_prepare(ctx);
96 dev_err(ctx->dev, "CL dma prepare failed : %d", ret);
97 goto skl_load_base_firmware_failed;
100 /* enable Interrupt */
101 skl_ipc_int_enable(ctx);
102 skl_ipc_op_int_enable(ctx);
104 /* check ROM Status */
105 for (i = SKL_INIT_TIMEOUT; i > 0; --i) {
106 if (skl_check_fw_status(ctx, SKL_FW_INIT)) {
108 "ROM loaded, we can continue with FW loading\n");
114 reg = sst_dsp_shim_read(ctx, SKL_ADSP_FW_STATUS);
116 "Timeout waiting for ROM init done, reg:0x%x\n", reg);
118 goto transfer_firmware_failed;
121 ret = skl_transfer_firmware(ctx, ctx->fw->data, ctx->fw->size);
123 dev_err(ctx->dev, "Transfer firmware failed%d\n", ret);
124 goto transfer_firmware_failed;
126 ret = wait_event_timeout(skl->boot_wait, skl->boot_complete,
127 msecs_to_jiffies(SKL_IPC_BOOT_MSECS));
129 dev_err(ctx->dev, "DSP boot failed, FW Ready timed-out\n");
131 goto transfer_firmware_failed;
134 dev_dbg(ctx->dev, "Download firmware successful%d\n", ret);
135 skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING);
138 transfer_firmware_failed:
139 ctx->cl_dev.ops.cl_cleanup_controller(ctx);
140 skl_load_base_firmware_failed:
141 skl_dsp_disable_core(ctx);
142 release_firmware(ctx->fw);
147 static int skl_set_dsp_D0(struct sst_dsp *ctx)
151 ret = skl_load_base_firmware(ctx);
153 dev_err(ctx->dev, "unable to load firmware\n");
157 skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING);
162 static int skl_set_dsp_D3(struct sst_dsp *ctx)
165 struct skl_ipc_dxstate_info dx;
166 struct skl_sst *skl = ctx->thread_context;
168 dev_dbg(ctx->dev, "In %s:\n", __func__);
169 mutex_lock(&ctx->mutex);
170 if (!is_skl_dsp_running(ctx)) {
171 mutex_unlock(&ctx->mutex);
174 mutex_unlock(&ctx->mutex);
176 dx.core_mask = SKL_DSP_CORE0_MASK;
177 dx.dx_mask = SKL_IPC_D3_MASK;
178 ret = skl_ipc_set_dx(&skl->ipc, SKL_INSTANCE_ID, SKL_BASE_FW_MODULE_ID, &dx);
181 "D3 request to FW failed, continuing reset: %d", ret);
183 /* disable Interrupt */
184 ctx->cl_dev.ops.cl_cleanup_controller(ctx);
185 skl_cldma_int_disable(ctx);
186 skl_ipc_op_int_disable(ctx);
187 skl_ipc_int_disable(ctx);
189 ret = skl_dsp_disable_core(ctx);
191 dev_err(ctx->dev, "disable dsp core failed ret: %d\n", ret);
194 skl_dsp_set_state_locked(ctx, SKL_DSP_RESET);
199 static unsigned int skl_get_errorcode(struct sst_dsp *ctx)
201 return sst_dsp_shim_read(ctx, SKL_ADSP_ERROR_CODE);
205 * since get/set_module are called from DAPM context,
206 * we don't need lock for usage count
208 static int skl_get_module(struct sst_dsp *ctx, u16 mod_id)
210 struct skl_module_table *module;
212 list_for_each_entry(module, &ctx->module_list, list) {
213 if (module->mod_info->mod_id == mod_id)
214 return ++module->usage_cnt;
220 static int skl_put_module(struct sst_dsp *ctx, u16 mod_id)
222 struct skl_module_table *module;
224 list_for_each_entry(module, &ctx->module_list, list) {
225 if (module->mod_info->mod_id == mod_id)
226 return --module->usage_cnt;
232 static struct skl_module_table *skl_fill_module_table(struct sst_dsp *ctx,
233 char *mod_name, int mod_id)
235 const struct firmware *fw;
236 struct skl_module_table *skl_module;
240 ret = request_firmware(&fw, mod_name, ctx->dev);
242 dev_err(ctx->dev, "Request Module %s failed :%d\n",
247 skl_module = devm_kzalloc(ctx->dev, sizeof(*skl_module), GFP_KERNEL);
248 if (skl_module == NULL) {
249 release_firmware(fw);
253 size = sizeof(*skl_module->mod_info);
254 skl_module->mod_info = devm_kzalloc(ctx->dev, size, GFP_KERNEL);
255 if (skl_module->mod_info == NULL) {
256 release_firmware(fw);
260 skl_module->mod_info->mod_id = mod_id;
261 skl_module->mod_info->fw = fw;
262 list_add(&skl_module->list, &ctx->module_list);
267 /* get a module from it's unique ID */
268 static struct skl_module_table *skl_module_get_from_id(
269 struct sst_dsp *ctx, u16 mod_id)
271 struct skl_module_table *module;
273 if (list_empty(&ctx->module_list)) {
274 dev_err(ctx->dev, "Module list is empty\n");
278 list_for_each_entry(module, &ctx->module_list, list) {
279 if (module->mod_info->mod_id == mod_id)
286 static int skl_transfer_module(struct sst_dsp *ctx,
287 struct skl_load_module_info *module)
290 struct skl_sst *skl = ctx->thread_context;
292 ret = ctx->cl_dev.ops.cl_copy_to_dmabuf(ctx, module->fw->data,
297 ret = skl_ipc_load_modules(&skl->ipc, SKL_NUM_MODULES,
298 (void *)&module->mod_id);
300 dev_err(ctx->dev, "Failed to Load module: %d\n", ret);
302 ctx->cl_dev.ops.cl_stop_dma(ctx);
307 static int skl_load_module(struct sst_dsp *ctx, u16 mod_id, char *guid)
309 struct skl_module_table *module_entry = NULL;
311 char mod_name[64]; /* guid str = 32 chars + 4 hyphens */
313 snprintf(mod_name, sizeof(mod_name), "%s%s%s",
314 "intel/dsp_fw_", guid, ".bin");
316 module_entry = skl_module_get_from_id(ctx, mod_id);
317 if (module_entry == NULL) {
318 module_entry = skl_fill_module_table(ctx, mod_name, mod_id);
319 if (module_entry == NULL) {
320 dev_err(ctx->dev, "Failed to Load module\n");
325 if (!module_entry->usage_cnt) {
326 ret = skl_transfer_module(ctx, module_entry->mod_info);
328 dev_err(ctx->dev, "Failed to Load module\n");
333 ret = skl_get_module(ctx, mod_id);
338 static int skl_unload_module(struct sst_dsp *ctx, u16 mod_id)
341 struct skl_sst *skl = ctx->thread_context;
344 usage_cnt = skl_put_module(ctx, mod_id);
346 dev_err(ctx->dev, "Module bad usage cnt!:%d\n", usage_cnt);
349 ret = skl_ipc_unload_modules(&skl->ipc,
350 SKL_NUM_MODULES, &mod_id);
352 dev_err(ctx->dev, "Failed to UnLoad module\n");
353 skl_get_module(ctx, mod_id);
360 static void skl_clear_module_table(struct sst_dsp *ctx)
362 struct skl_module_table *module, *tmp;
364 if (list_empty(&ctx->module_list))
367 list_for_each_entry_safe(module, tmp, &ctx->module_list, list) {
368 list_del(&module->list);
369 release_firmware(module->mod_info->fw);
373 static struct skl_dsp_fw_ops skl_fw_ops = {
374 .set_state_D0 = skl_set_dsp_D0,
375 .set_state_D3 = skl_set_dsp_D3,
376 .load_fw = skl_load_base_firmware,
377 .get_fw_errcode = skl_get_errorcode,
378 .load_mod = skl_load_module,
379 .unload_mod = skl_unload_module,
382 static struct sst_ops skl_ops = {
383 .irq_handler = skl_dsp_sst_interrupt,
384 .write = sst_shim32_write,
385 .read = sst_shim32_read,
386 .ram_read = sst_memcpy_fromio_32,
387 .ram_write = sst_memcpy_toio_32,
388 .free = skl_dsp_free,
391 static struct sst_dsp_device skl_dev = {
392 .thread = skl_dsp_irq_thread_handler,
396 int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
397 const char *fw_name, struct skl_dsp_loader_ops dsp_ops, struct skl_sst **dsp)
403 skl = devm_kzalloc(dev, sizeof(*skl), GFP_KERNEL);
408 skl_dev.thread_context = skl;
410 skl->dsp = skl_dsp_ctx_init(dev, &skl_dev, irq);
412 dev_err(skl->dev, "%s: no device\n", __func__);
418 sst->fw_name = fw_name;
419 sst->addr.lpe = mmio_base;
420 sst->addr.shim = mmio_base;
421 sst_dsp_mailbox_init(sst, (SKL_ADSP_SRAM0_BASE + SKL_ADSP_W0_STAT_SZ),
422 SKL_ADSP_W0_UP_SZ, SKL_ADSP_SRAM1_BASE, SKL_ADSP_W1_SZ);
424 INIT_LIST_HEAD(&sst->module_list);
425 sst->dsp_ops = dsp_ops;
426 sst->fw_ops = skl_fw_ops;
428 ret = skl_ipc_init(dev, skl);
432 ret = sst->fw_ops.load_fw(sst);
434 dev_err(dev, "Load base fw failed : %d", ret);
444 skl_sst_dsp_cleanup(dev, skl);
447 EXPORT_SYMBOL_GPL(skl_sst_dsp_init);
449 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx)
451 skl_clear_module_table(ctx->dsp);
452 skl_ipc_free(&ctx->ipc);
453 ctx->dsp->ops->free(ctx->dsp);
455 EXPORT_SYMBOL_GPL(skl_sst_dsp_cleanup);
457 MODULE_LICENSE("GPL v2");
458 MODULE_DESCRIPTION("Intel Skylake IPC driver");