#include "sst-haswell-ipc.h"
#include "../common/sst-dsp.h"
#include "../common/sst-dsp-priv.h"
+#include "../common/sst-ipc.h"
/* Global Message - Generic */
#define IPC_GLB_TYPE_SHIFT 24
u8 fw_info[IPC_MAX_MAILBOX_BYTES - 5 * sizeof(u32)];
} __attribute__((packed));
-struct ipc_message {
- struct list_head list;
- u32 header;
-
- /* direction wrt host CPU */
- char tx_data[IPC_MAX_MAILBOX_BYTES];
- size_t tx_size;
- char rx_data[IPC_MAX_MAILBOX_BYTES];
- size_t rx_size;
-
- wait_queue_head_t waitq;
- bool pending;
- bool complete;
- bool wait;
- int errno;
-};
-
struct sst_hsw_stream;
struct sst_hsw;
bool shutdown;
/* IPC messaging */
- struct list_head tx_list;
- struct list_head rx_list;
- struct list_head empty_list;
- wait_queue_head_t wait_txq;
- struct task_struct *tx_thread;
- struct kthread_worker kworker;
- struct kthread_work kwork;
- bool pending;
- struct ipc_message *msg;
+ struct sst_generic_ipc ipc;
/* FW log stream */
struct sst_hsw_log_stream log_stream;
return NULL;
}
-static void ipc_shim_dbg(struct sst_hsw *hsw, const char *text)
-{
- struct sst_dsp *sst = hsw->dsp;
- u32 isr, ipcd, imrx, ipcx;
-
- ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);
- isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
- ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
- imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);
-
- dev_err(hsw->dev, "ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",
- text, ipcx, isr, ipcd, imrx);
-}
-
-/* locks held by caller */
-static struct ipc_message *msg_get_empty(struct sst_hsw *hsw)
-{
- struct ipc_message *msg = NULL;
-
- if (!list_empty(&hsw->empty_list)) {
- msg = list_first_entry(&hsw->empty_list, struct ipc_message,
- list);
- list_del(&msg->list);
- }
-
- return msg;
-}
-
-static void ipc_tx_msgs(struct kthread_work *work)
-{
- struct sst_hsw *hsw =
- container_of(work, struct sst_hsw, kwork);
- struct ipc_message *msg;
- unsigned long flags;
- u32 ipcx;
-
- spin_lock_irqsave(&hsw->dsp->spinlock, flags);
-
- if (list_empty(&hsw->tx_list) || hsw->pending) {
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
- return;
- }
-
- /* if the DSP is busy, we will TX messages after IRQ.
- * also postpone if we are in the middle of procesing completion irq*/
- ipcx = sst_dsp_shim_read_unlocked(hsw->dsp, SST_IPCX);
- if (ipcx & (SST_IPCX_BUSY | SST_IPCX_DONE)) {
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
- return;
- }
-
- msg = list_first_entry(&hsw->tx_list, struct ipc_message, list);
-
- list_move(&msg->list, &hsw->rx_list);
-
- /* send the message */
- sst_dsp_outbox_write(hsw->dsp, msg->tx_data, msg->tx_size);
- sst_dsp_ipc_msg_tx(hsw->dsp, msg->header | SST_IPCX_BUSY);
-
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
-}
-
-/* locks held by caller */
-static void tx_msg_reply_complete(struct sst_hsw *hsw, struct ipc_message *msg)
-{
- msg->complete = true;
- trace_ipc_reply("completed", msg->header);
-
- if (!msg->wait)
- list_add_tail(&msg->list, &hsw->empty_list);
- else
- wake_up(&msg->waitq);
-}
-
-static int tx_wait_done(struct sst_hsw *hsw, struct ipc_message *msg,
- void *rx_data)
-{
- unsigned long flags;
- int ret;
-
- /* wait for DSP completion (in all cases atm inc pending) */
- ret = wait_event_timeout(msg->waitq, msg->complete,
- msecs_to_jiffies(IPC_TIMEOUT_MSECS));
-
- spin_lock_irqsave(&hsw->dsp->spinlock, flags);
- if (ret == 0) {
- ipc_shim_dbg(hsw, "message timeout");
-
- trace_ipc_error("error message timeout for", msg->header);
- list_del(&msg->list);
- ret = -ETIMEDOUT;
- } else {
-
- /* copy the data returned from DSP */
- if (msg->rx_size)
- memcpy(rx_data, msg->rx_data, msg->rx_size);
- ret = msg->errno;
- }
-
- list_add_tail(&msg->list, &hsw->empty_list);
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
- return ret;
-}
-
-static int ipc_tx_message(struct sst_hsw *hsw, u32 header, void *tx_data,
- size_t tx_bytes, void *rx_data, size_t rx_bytes, int wait)
-{
- struct ipc_message *msg;
- unsigned long flags;
-
- spin_lock_irqsave(&hsw->dsp->spinlock, flags);
-
- msg = msg_get_empty(hsw);
- if (msg == NULL) {
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
- return -EBUSY;
- }
-
- if (tx_bytes)
- memcpy(msg->tx_data, tx_data, tx_bytes);
-
- msg->header = header;
- msg->tx_size = tx_bytes;
- msg->rx_size = rx_bytes;
- msg->wait = wait;
- msg->errno = 0;
- msg->pending = false;
- msg->complete = false;
-
- list_add_tail(&msg->list, &hsw->tx_list);
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
-
- queue_kthread_work(&hsw->kworker, &hsw->kwork);
-
- if (wait)
- return tx_wait_done(hsw, msg, rx_data);
- else
- return 0;
-}
-
-static inline int ipc_tx_message_wait(struct sst_hsw *hsw, u32 header,
- void *tx_data, size_t tx_bytes, void *rx_data, size_t rx_bytes)
-{
- return ipc_tx_message(hsw, header, tx_data, tx_bytes, rx_data,
- rx_bytes, 1);
-}
-
-static inline int ipc_tx_message_nowait(struct sst_hsw *hsw, u32 header,
- void *tx_data, size_t tx_bytes)
-{
- return ipc_tx_message(hsw, header, tx_data, tx_bytes, NULL, 0, 0);
-}
-
static void hsw_fw_ready(struct sst_hsw *hsw, u32 header)
{
struct sst_hsw_ipc_fw_ready fw_ready;
sst_dsp_shim_update_bits(hsw->dsp, SST_IMRX, SST_IMRX_BUSY, 0);
}
-static struct ipc_message *reply_find_msg(struct sst_hsw *hsw, u32 header)
-{
- struct ipc_message *msg;
-
- /* clear reply bits & status bits */
- header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
-
- if (list_empty(&hsw->rx_list)) {
- dev_err(hsw->dev, "error: rx list empty but received 0x%x\n",
- header);
- return NULL;
- }
-
- list_for_each_entry(msg, &hsw->rx_list, list) {
- if (msg->header == header)
- return msg;
- }
-
- return NULL;
-}
-
static void hsw_stream_update(struct sst_hsw *hsw, struct ipc_message *msg)
{
struct sst_hsw_stream *stream;
trace_ipc_reply("processing -->", header);
- msg = reply_find_msg(hsw, header);
+ msg = sst_ipc_reply_find_msg(&hsw->ipc, header);
if (msg == NULL) {
trace_ipc_error("error: can't find message header", header);
return -EIO;
case IPC_GLB_REPLY_PENDING:
trace_ipc_pending_reply("received", header);
msg->pending = true;
- hsw->pending = true;
+ hsw->ipc.pending = true;
return 1;
case IPC_GLB_REPLY_SUCCESS:
if (msg->pending) {
trace_ipc_pending_reply("completed", header);
sst_dsp_inbox_read(hsw->dsp, msg->rx_data,
msg->rx_size);
- hsw->pending = false;
+ hsw->ipc.pending = false;
} else {
/* copy data from the DSP */
sst_dsp_outbox_read(hsw->dsp, msg->rx_data,
/* wake up and return the error if we have waiters on this message ? */
list_del(&msg->list);
- tx_msg_reply_complete(hsw, msg);
+ sst_ipc_tx_msg_reply_complete(&hsw->ipc, msg);
return 1;
}
{
struct sst_dsp *sst = (struct sst_dsp *) context;
struct sst_hsw *hsw = sst_dsp_get_thread_context(sst);
+ struct sst_generic_ipc *ipc = &hsw->ipc;
u32 ipcx, ipcd;
int handled;
unsigned long flags;
spin_unlock_irqrestore(&sst->spinlock, flags);
/* continue to send any remaining messages... */
- queue_kthread_work(&hsw->kworker, &hsw->kwork);
+ queue_kthread_work(&ipc->kworker, &ipc->kwork);
return IRQ_HANDLED;
}
{
int ret;
- ret = ipc_tx_message_wait(hsw, IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),
+ ret = sst_ipc_tx_message_wait(&hsw->ipc,
+ IPC_GLB_TYPE(IPC_GLB_GET_FW_VERSION),
NULL, 0, version, sizeof(*version));
if (ret < 0)
dev_err(hsw->dev, "error: get version failed\n");
req->channel = channel;
}
- ret = ipc_tx_message_wait(hsw, header, req, sizeof(*req), NULL, 0);
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, req,
+ sizeof(*req), NULL, 0);
if (ret < 0) {
dev_err(hsw->dev, "error: set stream volume failed\n");
return ret;
req.curve_type = hsw->curve_type;
req.target_volume = volume;
- ret = ipc_tx_message_wait(hsw, header, &req, sizeof(req), NULL, 0);
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &req,
+ sizeof(req), NULL, 0);
if (ret < 0) {
dev_err(hsw->dev, "error: set mixer volume failed\n");
return ret;
stream->free_req.stream_id = stream->reply.stream_hw_id;
header = IPC_GLB_TYPE(IPC_GLB_FREE_STREAM);
- ret = ipc_tx_message_wait(hsw, header, &stream->free_req,
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &stream->free_req,
sizeof(stream->free_req), NULL, 0);
if (ret < 0) {
dev_err(hsw->dev, "error: free stream %d failed\n",
header = IPC_GLB_TYPE(IPC_GLB_ALLOCATE_STREAM);
- ret = ipc_tx_message_wait(hsw, header, str_req, sizeof(*str_req),
- reply, sizeof(*reply));
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, str_req,
+ sizeof(*str_req), reply, sizeof(*reply));
if (ret < 0) {
dev_err(hsw->dev, "error: stream commit failed\n");
return ret;
trace_ipc_request("get global mixer info", 0);
- ret = ipc_tx_message_wait(hsw, header, NULL, 0, reply, sizeof(*reply));
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, NULL, 0,
+ reply, sizeof(*reply));
if (ret < 0) {
dev_err(hsw->dev, "error: get stream info failed\n");
return ret;
header |= (stream_id << IPC_STR_ID_SHIFT);
if (wait)
- return ipc_tx_message_wait(hsw, header, NULL, 0, NULL, 0);
+ return sst_ipc_tx_message_wait(&hsw->ipc, header,
+ NULL, 0, NULL, 0);
else
- return ipc_tx_message_nowait(hsw, header, NULL, 0);
+ return sst_ipc_tx_message_nowait(&hsw->ipc, header, NULL, 0);
}
/* Stream ALSA trigger operations */
header = IPC_GLB_TYPE(IPC_GLB_SET_DEVICE_FORMATS);
- ret = ipc_tx_message_wait(hsw, header, &config, sizeof(config),
- NULL, 0);
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &config,
+ sizeof(config), NULL, 0);
if (ret < 0)
dev_err(hsw->dev, "error: set device formats failed\n");
trace_ipc_request("PM enter Dx state", state);
- ret = ipc_tx_message_wait(hsw, header, &state_, sizeof(state_),
- dx, sizeof(*dx));
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, &state_,
+ sizeof(state_), dx, sizeof(*dx));
if (ret < 0) {
dev_err(hsw->dev, "ipc: error set dx state %d failed\n", state);
return ret;
return 0;
}
-static void sst_hsw_drop_all(struct sst_hsw *hsw)
-{
- struct ipc_message *msg, *tmp;
- unsigned long flags;
- int tx_drop_cnt = 0, rx_drop_cnt = 0;
-
- /* drop all TX and Rx messages before we stall + reset DSP */
- spin_lock_irqsave(&hsw->dsp->spinlock, flags);
-
- list_for_each_entry_safe(msg, tmp, &hsw->tx_list, list) {
- list_move(&msg->list, &hsw->empty_list);
- tx_drop_cnt++;
- }
-
- list_for_each_entry_safe(msg, tmp, &hsw->rx_list, list) {
- list_move(&msg->list, &hsw->empty_list);
- rx_drop_cnt++;
- }
-
- spin_unlock_irqrestore(&hsw->dsp->spinlock, flags);
-
- if (tx_drop_cnt || rx_drop_cnt)
- dev_err(hsw->dev, "dropped IPC msg RX=%d, TX=%d\n",
- tx_drop_cnt, rx_drop_cnt);
-}
-
int sst_hsw_dsp_load(struct sst_hsw *hsw)
{
struct sst_dsp *dsp = hsw->dsp;
if (ret < 0)
return ret;
- sst_hsw_drop_all(hsw);
+ sst_ipc_drop_all(&hsw->ipc);
return 0;
}
}
#endif
-static int msg_empty_list_init(struct sst_hsw *hsw)
-{
- int i;
-
- hsw->msg = kzalloc(sizeof(struct ipc_message) *
- IPC_EMPTY_LIST_SIZE, GFP_KERNEL);
- if (hsw->msg == NULL)
- return -ENOMEM;
-
- for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {
- init_waitqueue_head(&hsw->msg[i].waitq);
- list_add(&hsw->msg[i].list, &hsw->empty_list);
- }
-
- return 0;
-}
-
struct sst_dsp *sst_hsw_get_dsp(struct sst_hsw *hsw)
{
return hsw->dsp;
config.scratch_mem.size, config.scratch_mem.offset,
config.map.module_entries[0].entry_point);
- ret = ipc_tx_message_wait(hsw, header,
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header,
&config, sizeof(config), NULL, 0);
if (ret < 0)
dev_err(dev, "ipc: module enable failed - %d\n", ret);
IPC_MODULE_OPERATION(IPC_MODULE_DISABLE) |
IPC_MODULE_ID(module_id);
- ret = ipc_tx_message_wait(hsw, header, NULL, 0, NULL, 0);
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header, NULL, 0, NULL, 0);
if (ret < 0)
dev_err(dev, "module disable failed - %d\n", ret);
else
parameter->parameter_id = parameter_id;
parameter->data_size = param_size;
- ret = ipc_tx_message_wait(hsw, header,
+ ret = sst_ipc_tx_message_wait(&hsw->ipc, header,
parameter, transfer_parameter_size , NULL, 0);
if (ret < 0)
dev_err(dev, "ipc: module set parameter failed - %d\n", ret);
.ops = &haswell_ops,
};
+static void hsw_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg)
+{
+ /* send the message */
+ sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size);
+ sst_dsp_ipc_msg_tx(ipc->dsp, msg->header);
+}
+
+static void hsw_shim_dbg(struct sst_generic_ipc *ipc, const char *text)
+{
+ struct sst_dsp *sst = ipc->dsp;
+ u32 isr, ipcd, imrx, ipcx;
+
+ ipcx = sst_dsp_shim_read_unlocked(sst, SST_IPCX);
+ isr = sst_dsp_shim_read_unlocked(sst, SST_ISRX);
+ ipcd = sst_dsp_shim_read_unlocked(sst, SST_IPCD);
+ imrx = sst_dsp_shim_read_unlocked(sst, SST_IMRX);
+
+ dev_err(ipc->dev,
+ "ipc: --%s-- ipcx 0x%8.8x isr 0x%8.8x ipcd 0x%8.8x imrx 0x%8.8x\n",
+ text, ipcx, isr, ipcd, imrx);
+}
+
+static void hsw_tx_data_copy(struct ipc_message *msg, char *tx_data,
+ size_t tx_size)
+{
+ memcpy(msg->tx_data, tx_data, tx_size);
+}
+
+static u64 hsw_reply_msg_match(u64 header, u64 *mask)
+{
+ /* clear reply bits & status bits */
+ header &= ~(IPC_STATUS_MASK | IPC_GLB_REPLY_MASK);
+ *mask = (u64)-1;
+
+ return header;
+}
+
int sst_hsw_dsp_init(struct device *dev, struct sst_pdata *pdata)
{
struct sst_hsw_ipc_fw_version version;
struct sst_hsw *hsw;
+ struct sst_generic_ipc *ipc;
int ret;
dev_dbg(dev, "initialising Audio DSP IPC\n");
if (hsw == NULL)
return -ENOMEM;
- hsw->dev = dev;
- INIT_LIST_HEAD(&hsw->stream_list);
- INIT_LIST_HEAD(&hsw->tx_list);
- INIT_LIST_HEAD(&hsw->rx_list);
- INIT_LIST_HEAD(&hsw->empty_list);
- init_waitqueue_head(&hsw->boot_wait);
- init_waitqueue_head(&hsw->wait_txq);
+ ipc = &hsw->ipc;
+ ipc->dev = dev;
+ ipc->ops.tx_msg = hsw_tx_msg;
+ ipc->ops.shim_dbg = hsw_shim_dbg;
+ ipc->ops.tx_data_copy = hsw_tx_data_copy;
+ ipc->ops.reply_msg_match = hsw_reply_msg_match;
- ret = msg_empty_list_init(hsw);
- if (ret < 0)
- return -ENOMEM;
-
- /* start the IPC message thread */
- init_kthread_worker(&hsw->kworker);
- hsw->tx_thread = kthread_run(kthread_worker_fn,
- &hsw->kworker, "%s",
- dev_name(hsw->dev));
- if (IS_ERR(hsw->tx_thread)) {
- ret = PTR_ERR(hsw->tx_thread);
- dev_err(hsw->dev, "error: failed to create message TX task\n");
- goto err_free_msg;
- }
- init_kthread_work(&hsw->kwork, ipc_tx_msgs);
+ ret = sst_ipc_init(ipc);
+ if (ret != 0)
+ goto ipc_init_err;
+ INIT_LIST_HEAD(&hsw->stream_list);
+ init_waitqueue_head(&hsw->boot_wait);
hsw_dev.thread_context = hsw;
/* init SST shim */
hsw->dsp = sst_dsp_new(dev, &hsw_dev, pdata);
if (hsw->dsp == NULL) {
ret = -ENODEV;
- goto dsp_err;
+ goto dsp_new_err;
}
+ ipc->dsp = hsw->dsp;
+
/* allocate DMA buffer for context storage */
hsw->dx_context = dma_alloc_coherent(hsw->dsp->dma_dev,
SST_HSW_DX_CONTEXT_SIZE, &hsw->dx_context_paddr, GFP_KERNEL);
hsw->dx_context, hsw->dx_context_paddr);
dma_err:
sst_dsp_free(hsw->dsp);
-dsp_err:
- kthread_stop(hsw->tx_thread);
-err_free_msg:
- kfree(hsw->msg);
-
+dsp_new_err:
+ sst_ipc_fini(ipc);
+ipc_init_err:
+ kfree(hsw);
return ret;
}
EXPORT_SYMBOL_GPL(sst_hsw_dsp_init);
dma_free_coherent(hsw->dsp->dma_dev, SST_HSW_DX_CONTEXT_SIZE,
hsw->dx_context, hsw->dx_context_paddr);
sst_dsp_free(hsw->dsp);
- kthread_stop(hsw->tx_thread);
- kfree(hsw->msg);
+ sst_ipc_fini(&hsw->ipc);
}
EXPORT_SYMBOL_GPL(sst_hsw_dsp_free);
projects / profile / common / platform / kernel / linux-artik7.git / commitdiff