1 // SPDX-License-Identifier: GPL-2.0-only
3  *  sst_ipc.c - Intel SST Driver for audio engine
5  *  Copyright (C) 2008-14 Intel Corporation
25 #include "../sst-mfld-platform.h"
33 	dev_dbg(ctx->dev, "Enter\n");  in sst_create_block()
37 	msg->condition = false;  in sst_create_block()
38 	msg->on = true;  in sst_create_block()
39 	msg->msg_id = msg_id;  in sst_create_block()
40 	msg->drv_id = drv_id;  in sst_create_block()
41 	spin_lock_bh(&ctx->block_lock);  in sst_create_block()
42 	list_add_tail(&msg->node, &ctx->block_list);  in sst_create_block()
43 	spin_unlock_bh(&ctx->block_lock);  in sst_create_block()
59  *  Since we have bit of small messages we can spam kernel log with err
68 	dev_dbg(ctx->dev, "Enter\n");  in sst_wake_up_block()
70 	spin_lock_bh(&ctx->block_lock);  in sst_wake_up_block()
71 	list_for_each_entry(block, &ctx->block_list, node) {  in sst_wake_up_block()
72 		dev_dbg(ctx->dev, "Block ipc %d, drv_id %d\n", block->msg_id,  in sst_wake_up_block()
73 							block->drv_id);  in sst_wake_up_block()
74 		if (block->msg_id == ipc && block->drv_id == drv_id) {  in sst_wake_up_block()
75 			dev_dbg(ctx->dev, "free up the block\n");  in sst_wake_up_block()
76 			block->ret_code = result;  in sst_wake_up_block()
77 			block->data = data;  in sst_wake_up_block()
78 			block->size = size;  in sst_wake_up_block()
79 			block->condition = true;  in sst_wake_up_block()
80 			spin_unlock_bh(&ctx->block_lock);  in sst_wake_up_block()
81 			wake_up(&ctx->wait_queue);  in sst_wake_up_block()
85 	spin_unlock_bh(&ctx->block_lock);  in sst_wake_up_block()
86 	dev_dbg(ctx->dev,  in sst_wake_up_block()
89 	return -EINVAL;  in sst_wake_up_block()
96 	dev_dbg(ctx->dev, "Enter\n");  in sst_free_block()
97 	spin_lock_bh(&ctx->block_lock);  in sst_free_block()
98 	list_for_each_entry_safe(block, __block, &ctx->block_list, node) {  in sst_free_block()
100 			pr_debug("pvt_id freed --> %d\n", freed->drv_id);  in sst_free_block()
102 			list_del(&freed->node);  in sst_free_block()
103 			spin_unlock_bh(&ctx->block_lock);  in sst_free_block()
104 			kfree(freed->data);  in sst_free_block()
105 			freed->data = NULL;  in sst_free_block()
110 	spin_unlock_bh(&ctx->block_lock);  in sst_free_block()
111 	dev_err(ctx->dev, "block is already freed!!!\n");  in sst_free_block()
112 	return -EINVAL;  in sst_free_block()
124 	dev_dbg(sst_drv_ctx->dev, "Enter: sync: %d\n", sync);  in sst_post_message_mrfld()
125 	spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in sst_post_message_mrfld()
126 	header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);  in sst_post_message_mrfld()
130 				dev_err(sst_drv_ctx->dev,  in sst_post_message_mrfld()
132 				retval = -EBUSY;  in sst_post_message_mrfld()
137 			header.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCX);  in sst_post_message_mrfld()
140 		if (list_empty(&sst_drv_ctx->ipc_dispatch_list)) {  in sst_post_message_mrfld()
142 			spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in sst_post_message_mrfld()
143 			dev_dbg(sst_drv_ctx->dev,  in sst_post_message_mrfld()
149 			spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in sst_post_message_mrfld()
150 			dev_dbg(sst_drv_ctx->dev, "Busy not free... post later\n");  in sst_post_message_mrfld()
155 		msg = list_entry(sst_drv_ctx->ipc_dispatch_list.next,  in sst_post_message_mrfld()
157 		list_del(&msg->node);  in sst_post_message_mrfld()
159 	dev_dbg(sst_drv_ctx->dev, "sst: Post message: header = %x\n",  in sst_post_message_mrfld()
160 				msg->mrfld_header.p.header_high.full);  in sst_post_message_mrfld()
161 	dev_dbg(sst_drv_ctx->dev, "sst: size = 0x%x\n",  in sst_post_message_mrfld()
162 			msg->mrfld_header.p.header_low_payload);  in sst_post_message_mrfld()
164 	if (msg->mrfld_header.p.header_high.part.large)  in sst_post_message_mrfld()
165 		memcpy_toio(sst_drv_ctx->mailbox + SST_MAILBOX_SEND,  in sst_post_message_mrfld()
166 			msg->mailbox_data,  in sst_post_message_mrfld()
167 			msg->mrfld_header.p.header_low_payload);  in sst_post_message_mrfld()
169 	sst_shim_write64(sst_drv_ctx->shim, SST_IPCX, msg->mrfld_header.full);  in sst_post_message_mrfld()
172 	spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in sst_post_message_mrfld()
173 	kfree(msg->mailbox_data);  in sst_post_message_mrfld()
185 	spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in intel_sst_clear_intr_mrfld()
186 	imr.full = sst_shim_read64(sst_drv_ctx->shim, SST_IMRX);  in intel_sst_clear_intr_mrfld()
187 	isr.full = sst_shim_read64(sst_drv_ctx->shim, SST_ISRX);  in intel_sst_clear_intr_mrfld()
191 	sst_shim_write64(sst_drv_ctx->shim, SST_ISRX, isr.full);  in intel_sst_clear_intr_mrfld()
193 	/* Set IA done bit */  in intel_sst_clear_intr_mrfld()
194 	clear_ipc.full = sst_shim_read64(sst_drv_ctx->shim, SST_IPCD);  in intel_sst_clear_intr_mrfld()
199 	sst_shim_write64(sst_drv_ctx->shim, SST_IPCD, clear_ipc.full);  in intel_sst_clear_intr_mrfld()
202 	sst_shim_write64(sst_drv_ctx->shim, SST_IMRX, imr.full);  in intel_sst_clear_intr_mrfld()
203 	spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);  in intel_sst_clear_intr_mrfld()
208  * process_fw_init - process the FW init msg
222 	dev_dbg(sst_drv_ctx->dev, "*** FW Init msg came***\n");  in process_fw_init()
223 	if (init->result) {  in process_fw_init()
225 		dev_err(sst_drv_ctx->dev, "FW Init failed, Error %x\n",  in process_fw_init()
226 				init->result);  in process_fw_init()
227 		retval = init->result;  in process_fw_init()
230 	if (memcmp(&sst_drv_ctx->fw_version, &init->fw_version,  in process_fw_init()
231 		   sizeof(init->fw_version)))  in process_fw_init()
232 		dev_info(sst_drv_ctx->dev, "FW Version %02x.%02x.%02x.%02x\n",  in process_fw_init()
233 			init->fw_version.type, init->fw_version.major,  in process_fw_init()
234 			init->fw_version.minor, init->fw_version.build);  in process_fw_init()
235 	dev_dbg(sst_drv_ctx->dev, "Build date %s Time %s\n",  in process_fw_init()
236 			init->build_info.date, init->build_info.time);  in process_fw_init()
239 	sst_drv_ctx->fw_version.type = init->fw_version.type;  in process_fw_init()
240 	sst_drv_ctx->fw_version.major = init->fw_version.major;  in process_fw_init()
241 	sst_drv_ctx->fw_version.minor = init->fw_version.minor;  in process_fw_init()
242 	sst_drv_ctx->fw_version.build = init->fw_version.build;  in process_fw_init()
258 	msg_low = msg->mrfld_header.p.header_low_payload;  in process_fw_async_msg()
259 	msg_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->cmd_id;  in process_fw_async_msg()
260 	data_offset = (msg->mailbox_data + sizeof(struct ipc_dsp_hdr));  in process_fw_async_msg()
261 	data_size =  msg_low - (sizeof(struct ipc_dsp_hdr));  in process_fw_async_msg()
265 		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;  in process_fw_async_msg()
268 			dev_dbg(sst_drv_ctx->dev,  in process_fw_async_msg()
271 			stream = &sst_drv_ctx->streams[str_id];  in process_fw_async_msg()
273 			if (stream->status == STREAM_INIT)  in process_fw_async_msg()
275 			if (stream->period_elapsed)  in process_fw_async_msg()
276 				stream->period_elapsed(stream->pcm_substream);  in process_fw_async_msg()
277 			if (stream->compr_cb)  in process_fw_async_msg()
278 				stream->compr_cb(stream->compr_cb_param);  in process_fw_async_msg()
283 		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;  in process_fw_async_msg()
286 			stream = &sst_drv_ctx->streams[str_id];  in process_fw_async_msg()
287 			if (stream->drain_notify)  in process_fw_async_msg()
288 				stream->drain_notify(stream->drain_cb_param);  in process_fw_async_msg()
293 		dev_err(sst_drv_ctx->dev, "FW sent async error msg:\n");  in process_fw_async_msg()
304 		pipe_id = ((struct ipc_dsp_hdr *)msg->mailbox_data)->pipe_id;  in process_fw_async_msg()
307 			dev_err(sst_drv_ctx->dev,  in process_fw_async_msg()
308 				"Buffer under-run for pipe:%#x str_id:%d\n",  in process_fw_async_msg()
313 		dev_err(sst_drv_ctx->dev,  in process_fw_async_msg()
327 	msg_high = msg->mrfld_header.p.header_high;  in sst_process_reply_mrfld()
328 	msg_low = msg->mrfld_header.p.header_low_payload;  in sst_process_reply_mrfld()
330 	dev_dbg(sst_drv_ctx->dev, "IPC process message header %x payload %x\n",  in sst_process_reply_mrfld()
331 			msg->mrfld_header.p.header_high.full,  in sst_process_reply_mrfld()
332 			msg->mrfld_header.p.header_low_payload);  in sst_process_reply_mrfld()
345 		/* 32-bit FW error code in msg_low */  in sst_process_reply_mrfld()
346 		dev_err(sst_drv_ctx->dev, "FW sent error response 0x%x", msg_low);  in sst_process_reply_mrfld()
359 		data = kmemdup((void *)msg->mailbox_data, msg_low, GFP_KERNEL);  in sst_process_reply_mrfld()
364 		dev_dbg(sst_drv_ctx->dev, "cmd_id %d\n", dsp_hdr->cmd_id);  in sst_process_reply_mrfld()