@@ -138,6 +138,7 @@ config SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH
config SND_SOC_INTEL_SKYLAKE
tristate
select SND_HDA_EXT_CORE
+ select SND_SOC_INTEL_SST
help
Say Y here to include support for ASoC Intel "High Definition
Audio" (Skylake) and its compatible devices.
@@ -303,6 +303,10 @@ struct sst_dsp {
/* DMA FW loading */
struct sst_dma *dma;
bool fw_use_dma;
+
+ /* SKL data */
+
+ u32 intr_status;
};
/* Size optimised DRAM/IRAM memcpy */
@@ -1,3 +1,8 @@
snd-soc-skl-objs := skl.o skl-pcm.o
obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl.o
+
+# Skylake IPC Support
+snd-soc-skl-ipc-objs := skl-sst-ipc.o
+
+obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl-ipc.o
new file mode 100644
@@ -0,0 +1,752 @@
+/*
+ * skl-sst-ipc.c - Intel skl IPC Support
+ *
+ * Copyright (C) 2014-15, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+#include <linux/device.h>
+
+#include "../common/sst-dsp.h"
+#include "../common/sst-dsp-priv.h"
+#include "skl-sst-dsp.h"
+#include "skl-sst-ipc.h"
+
+
+#define IPC_IXC_STATUS_BITS 24
+
+/* Global Message - Generic */
+#define IPC_GLB_TYPE_SHIFT 24
+#define IPC_GLB_TYPE_MASK (0xf << IPC_GLB_TYPE_SHIFT)
+#define IPC_GLB_TYPE(x) ((x) << IPC_GLB_TYPE_SHIFT)
+
+/* Global Message - Reply */
+#define IPC_GLB_REPLY_STATUS_SHIFT 24
+#define IPC_GLB_REPLY_STATUS_MASK ((0x1 << IPC_GLB_REPLY_STATUS_SHIFT) - 1)
+#define IPC_GLB_REPLY_STATUS(x) ((x) << IPC_GLB_REPLY_STATUS_SHIFT)
+
+#define IPC_TIMEOUT_MSECS 3000
+
+#define IPC_EMPTY_LIST_SIZE 8
+
+#define IPC_MSG_TARGET_SHIFT 30
+#define IPC_MSG_TARGET_MASK 0x1
+#define IPC_MSG_TARGET(x) (((x) & IPC_MSG_TARGET_MASK) \
+ << IPC_MSG_TARGET_SHIFT)
+
+#define IPC_MSG_DIR_SHIFT 29
+#define IPC_MSG_DIR_MASK 0x1
+#define IPC_MSG_DIR(x) (((x) & IPC_MSG_DIR_MASK) \
+ << IPC_MSG_DIR_SHIFT)
+/* Global Notification Message */
+#define IPC_GLB_NOTIFY_TYPE_SHIFT 16
+#define IPC_GLB_NOTIFY_TYPE_MASK 0xFF
+#define IPC_GLB_NOTIFY_TYPE(x) (((x) >> IPC_GLB_NOTIFY_TYPE_SHIFT) \
+ & IPC_GLB_NOTIFY_TYPE_MASK)
+
+#define IPC_GLB_NOTIFY_MSG_TYPE_SHIFT 24
+#define IPC_GLB_NOTIFY_MSG_TYPE_MASK 0x1F
+#define IPC_GLB_NOTIFY_MSG_TYPE(x) (((x) >> IPC_GLB_NOTIFY_MSG_TYPE_SHIFT) \
+ & IPC_GLB_NOTIFY_MSG_TYPE_MASK)
+
+#define IPC_GLB_NOTIFY_RSP_SHIFT 29
+#define IPC_GLB_NOTIFY_RSP_MASK 0x1
+#define IPC_GLB_NOTIFY_RSP_TYPE(x) (((x) >> IPC_GLB_NOTIFY_RSP_SHIFT) \
+ & IPC_GLB_NOTIFY_RSP_MASK)
+
+/* Pipeline operations */
+
+/* Create pipeline message */
+#define IPC_PPL_MEM_SIZE_SHIFT 0
+#define IPC_PPL_MEM_SIZE_MASK 0x7FF
+#define IPC_PPL_MEM_SIZE(x) (((x) & IPC_PPL_MEM_SIZE_MASK) \
+ << IPC_PPL_MEM_SIZE_SHIFT)
+
+#define IPC_PPL_TYPE_SHIFT 11
+#define IPC_PPL_TYPE_MASK 0x1F
+#define IPC_PPL_TYPE(x) (((x) & IPC_PPL_TYPE_MASK) \
+ << IPC_PPL_TYPE_SHIFT)
+
+#define IPC_INSTANCE_ID_SHIFT 16
+#define IPC_INSTANCE_ID_MASK 0xFF
+#define IPC_INSTANCE_ID(x) (((x) & IPC_INSTANCE_ID_MASK) \
+ << IPC_INSTANCE_ID_SHIFT)
+
+/* Set pipeline state message */
+#define IPC_PPL_STATE_SHIFT 0
+#define IPC_PPL_STATE_MASK 0x1F
+#define IPC_PPL_STATE(x) (((x) & IPC_PPL_STATE_MASK) \
+ << IPC_PPL_STATE_SHIFT)
+
+/* Module operations primary register */
+#define IPC_MOD_ID_SHIFT 0
+#define IPC_MOD_ID_MASK 0xFFFF
+#define IPC_MOD_ID(x) (((x) & IPC_MOD_ID_MASK) \
+ << IPC_MOD_ID_SHIFT)
+
+#define IPC_MOD_INSTANCE_ID_SHIFT 16
+#define IPC_MOD_INSTANCE_ID_MASK 0xFF
+#define IPC_MOD_INSTANCE_ID(x) (((x) & IPC_MOD_INSTANCE_ID_MASK) \
+ << IPC_MOD_INSTANCE_ID_SHIFT)
+
+/* Init instance message extension register */
+#define IPC_PARAM_BLOCK_SIZE_SHIFT 0
+#define IPC_PARAM_BLOCK_SIZE_MASK 0xFFFF
+#define IPC_PARAM_BLOCK_SIZE(x) (((x) & IPC_PARAM_BLOCK_SIZE_MASK) \
+ << IPC_PARAM_BLOCK_SIZE_SHIFT)
+
+#define IPC_PPL_INSTANCE_ID_SHIFT 16
+#define IPC_PPL_INSTANCE_ID_MASK 0xFF
+#define IPC_PPL_INSTANCE_ID(x) (((x) & IPC_PPL_INSTANCE_ID_MASK) \
+ << IPC_PPL_INSTANCE_ID_SHIFT)
+
+#define IPC_CORE_ID_SHIFT 24
+#define IPC_CORE_ID_MASK 0x1F
+#define IPC_CORE_ID(x) (((x) & IPC_CORE_ID_MASK) \
+ << IPC_CORE_ID_SHIFT)
+
+/* Bind/Unbind message extension register */
+#define IPC_DST_MOD_ID_SHIFT 0
+#define IPC_DST_MOD_ID(x) (((x) & IPC_MOD_ID_MASK) \
+ << IPC_DST_MOD_ID_SHIFT)
+
+#define IPC_DST_MOD_INSTANCE_ID_SHIFT 16
+#define IPC_DST_MOD_INSTANCE_ID(x) (((x) & IPC_MOD_INSTANCE_ID_MASK) \
+ << IPC_DST_MOD_INSTANCE_ID_SHIFT)
+
+#define IPC_DST_QUEUE_SHIFT 24
+#define IPC_DST_QUEUE_MASK 0x7
+#define IPC_DST_QUEUE(x) (((x) & IPC_DST_QUEUE_MASK) \
+ << IPC_DST_QUEUE_SHIFT)
+
+#define IPC_SRC_QUEUE_SHIFT 27
+#define IPC_SRC_QUEUE_MASK 0x7
+#define IPC_SRC_QUEUE(x) (((x) & IPC_SRC_QUEUE_MASK) \
+ << IPC_SRC_QUEUE_SHIFT)
+
+/* Save pipeline messgae extension register */
+#define IPC_DMA_ID_SHIFT 0
+#define IPC_DMA_ID_MASK 0x1F
+#define IPC_DMA_ID(x) (((x) & IPC_DMA_ID_MASK) \
+ << IPC_DMA_ID_SHIFT)
+/* Large Config message extension register */
+#define IPC_DATA_OFFSET_SZ_SHIFT 0
+#define IPC_DATA_OFFSET_SZ_MASK 0xFFFFF
+#define IPC_DATA_OFFSET_SZ(x) (((x) & IPC_DATA_OFFSET_SZ_MASK) \
+ << IPC_DATA_OFFSET_SZ_SHIFT)
+#define IPC_DATA_OFFSET_SZ_CLEAR ~(IPC_DATA_OFFSET_SZ_MASK \
+ << IPC_DATA_OFFSET_SZ_SHIFT)
+
+#define IPC_LARGE_PARAM_ID_SHIFT 20
+#define IPC_LARGE_PARAM_ID_MASK 0xFF
+#define IPC_LARGE_PARAM_ID(x) (((x) & IPC_LARGE_PARAM_ID_MASK) \
+ << IPC_LARGE_PARAM_ID_SHIFT)
+
+#define IPC_FINAL_BLOCK_SHIFT 28
+#define IPC_FINAL_BLOCK_MASK 0x1
+#define IPC_FINAL_BLOCK(x) (((x) & IPC_FINAL_BLOCK_MASK) \
+ << IPC_FINAL_BLOCK_SHIFT)
+
+#define IPC_INITIAL_BLOCK_SHIFT 29
+#define IPC_INITIAL_BLOCK_MASK 0x1
+#define IPC_INITIAL_BLOCK(x) (((x) & IPC_INITIAL_BLOCK_MASK) \
+ << IPC_INITIAL_BLOCK_SHIFT)
+#define IPC_INITIAL_BLOCK_CLEAR ~(IPC_INITIAL_BLOCK_MASK \
+ << IPC_INITIAL_BLOCK_SHIFT)
+
+enum skl_ipc_msg_target {
+ IPC_FW_GEN_MSG = 0,
+ IPC_MOD_MSG = 1
+};
+
+enum skl_ipc_msg_direction {
+ IPC_MSG_REQUEST = 0,
+ IPC_MSG_REPLY = 1
+};
+
+/* Global Message Types */
+enum skl_ipc_glb_type {
+ IPC_GLB_GET_FW_VERSION = 0, /* Retrieves firmware version */
+ IPC_GLB_LOAD_MULTIPLE_MODS = 15,
+ IPC_GLB_UNLOAD_MULTIPLE_MODS = 16,
+ IPC_GLB_CREATE_PPL = 17,
+ IPC_GLB_DELETE_PPL = 18,
+ IPC_GLB_SET_PPL_STATE = 19,
+ IPC_GLB_GET_PPL_STATE = 20,
+ IPC_GLB_GET_PPL_CONTEXT_SIZE = 21,
+ IPC_GLB_SAVE_PPL = 22,
+ IPC_GLB_RESTORE_PPL = 23,
+ IPC_GLB_NOTIFY = 26,
+ IPC_GLB_MAX_IPC_MSG_NUMBER = 31 /* Maximum message number */
+};
+
+enum skl_ipc_glb_reply {
+ IPC_GLB_REPLY_SUCCESS = 0,
+
+ IPC_GLB_REPLY_UNKNOWN_MSG_TYPE = 1,
+ IPC_GLB_REPLY_ERROR_INVALID_PARAM = 2,
+
+ IPC_GLB_REPLY_BUSY = 3,
+ IPC_GLB_REPLY_PENDING = 4,
+ IPC_GLB_REPLY_FAILURE = 5,
+ IPC_GLB_REPLY_INVALID_REQUEST = 6,
+
+ IPC_GLB_REPLY_OUT_OF_MEMORY = 7,
+ IPC_GLB_REPLY_OUT_OF_MIPS = 8,
+
+ IPC_GLB_REPLY_INVALID_RESOURCE_ID = 9,
+ IPC_GLB_REPLY_INVALID_RESOURCE_STATE = 10,
+
+ IPC_GLB_REPLY_MOD_MGMT_ERROR = 100,
+ IPC_GLB_REPLY_MOD_LOAD_CL_FAILED = 101,
+ IPC_GLB_REPLY_MOD_LOAD_INVALID_HASH = 102,
+
+ IPC_GLB_REPLY_MOD_UNLOAD_INST_EXIST = 103,
+ IPC_GLB_REPLY_MOD_NOT_INITIALIZED = 104,
+
+ IPC_GLB_REPLY_INVALID_CONFIG_PARAM_ID = 120,
+ IPC_GLB_REPLY_INVALID_CONFIG_DATA_LEN = 121,
+ IPC_GLB_REPLY_GATEWAY_NOT_INITIALIZED = 140,
+ IPC_GLB_REPLY_GATEWAY_NOT_EXIST = 141,
+
+ IPC_GLB_REPLY_PPL_NOT_INITIALIZED = 160,
+ IPC_GLB_REPLY_PPL_NOT_EXIST = 161,
+ IPC_GLB_REPLY_PPL_SAVE_FAILED = 162,
+ IPC_GLB_REPLY_PPL_RESTORE_FAILED = 163,
+
+ IPC_MAX_STATUS = ((1<<IPC_IXC_STATUS_BITS)-1)
+};
+
+enum skl_ipc_notification_type {
+ IPC_GLB_NOTIFY_GLITCH = 0,
+ IPC_GLB_NOTIFY_OVERRUN = 1,
+ IPC_GLB_NOTIFY_UNDERRUN = 2,
+ IPC_GLB_NOTIFY_END_STREAM = 3,
+ IPC_GLB_NOTIFY_PHRASE_DETECTED = 4,
+ IPC_GLB_NOTIFY_RESOURCE_EVENT = 5,
+ IPC_GLB_NOTIFY_LOG_BUFFER_STATUS = 6,
+ IPC_GLB_NOTIFY_TIMESTAMP_CAPTURED = 7,
+ IPC_GLB_NOTIFY_FW_READY = 8
+};
+
+/* Module Message Types */
+enum skl_ipc_module_msg {
+ IPC_MOD_INIT_INSTANCE = 0,
+ IPC_MOD_CONFIG_GET = 1,
+ IPC_MOD_CONFIG_SET = 2,
+ IPC_MOD_LARGE_CONFIG_GET = 3,
+ IPC_MOD_LARGE_CONFIG_SET = 4,
+ IPC_MOD_BIND = 5,
+ IPC_MOD_UNBIND = 6,
+ IPC_MOD_SET_DX = 7
+};
+
+static void skl_ipc_tx_data_copy(struct ipc_message *msg, char *tx_data,
+ size_t tx_size)
+{
+ if (tx_size)
+ memcpy(msg->tx_data, tx_data, tx_size);
+}
+
+static bool skl_ipc_is_dsp_busy(struct sst_dsp *dsp)
+{
+ u32 hipci;
+
+ hipci = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCI);
+ return (hipci & SKL_ADSP_REG_HIPCI_BUSY);
+}
+
+/* Lock to be held by caller */
+static void skl_ipc_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg)
+{
+ struct skl_ipc_header *header = (struct skl_ipc_header *)(&msg->header);
+
+ if (msg->tx_size)
+ sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size);
+ sst_dsp_shim_write_unlocked(ipc->dsp, SKL_ADSP_REG_HIPCIE, header->extension);
+ sst_dsp_shim_write_unlocked(ipc->dsp, SKL_ADSP_REG_HIPCI,
+ header->primary | SKL_ADSP_REG_HIPCI_BUSY);
+}
+
+static struct ipc_message *skl_ipc_reply_find_msg(struct sst_generic_ipc *ipc,
+ u64 ipc_header)
+{
+ struct ipc_message *msg = NULL;
+ struct skl_ipc_header *header = (struct skl_ipc_header *)(&ipc_header);
+
+ if (list_empty(&ipc->rx_list)) {
+ dev_err(ipc->dev, "ipc: rx list is empty but received 0x%x\n",
+ header->primary);
+ goto out;
+ }
+
+ msg = list_first_entry(&ipc->rx_list, struct ipc_message, list);
+
+out:
+ return msg;
+}
+
+static int skl_ipc_process_notification(struct sst_generic_ipc *ipc,
+ struct skl_ipc_header header)
+{
+ struct skl_sst *skl = container_of(ipc, struct skl_sst, ipc);
+
+ if (IPC_GLB_NOTIFY_MSG_TYPE(header.primary)) {
+ switch (IPC_GLB_NOTIFY_TYPE(header.primary)) {
+
+ case IPC_GLB_NOTIFY_UNDERRUN:
+ dev_err(ipc->dev, "FW Underrun %x\n", header.primary);
+ break;
+
+ case IPC_GLB_NOTIFY_RESOURCE_EVENT:
+ dev_err(ipc->dev, "MCPS Budget Violation: %x\n", header.primary);
+ break;
+
+ case IPC_GLB_NOTIFY_FW_READY:
+ skl->boot_complete = true;
+ wake_up(&skl->boot_wait);
+ break;
+
+ default:
+ dev_err(ipc->dev, "ipc: error received unexpected msg=%x",
+ header.primary);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static void skl_ipc_process_reply(struct sst_generic_ipc *ipc,
+ struct skl_ipc_header header)
+{
+ struct ipc_message *msg;
+ u32 reply = header.primary & IPC_GLB_REPLY_STATUS_MASK;
+ u64 *ipc_header = (u64 *)(&header);
+
+ msg = skl_ipc_reply_find_msg(ipc, *ipc_header);
+ if (msg == NULL) {
+ dev_dbg(ipc->dev, "ipc: rx list is empty\n");
+ return;
+ }
+
+ /* first process the header */
+ switch (reply) {
+ case IPC_GLB_REPLY_SUCCESS:
+ dev_info(ipc->dev, "ipc FW reply %x: success\n", header.primary);
+ break;
+
+ case IPC_GLB_REPLY_OUT_OF_MEMORY:
+ dev_err(ipc->dev, "ipc fw reply: %x: no memory\n", header.primary);
+ msg->errno = -ENOMEM;
+ break;
+
+ case IPC_GLB_REPLY_BUSY:
+ dev_err(ipc->dev, "ipc fw reply: %x: Busy\n", header.primary);
+ msg->errno = -EBUSY;
+ break;
+
+ default:
+ dev_err(ipc->dev, "Unknown ipc reply: 0x%x", reply);
+ msg->errno = -EINVAL;
+ break;
+ }
+
+ list_del(&msg->list);
+ sst_ipc_tx_msg_reply_complete(ipc, msg);
+}
+
+irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context)
+{
+ struct sst_dsp *dsp = (struct sst_dsp *)context;
+ struct skl_sst *skl = sst_dsp_get_thread_context(dsp);
+ struct sst_generic_ipc *ipc = &skl->ipc;
+ struct skl_ipc_header header = {0};
+ u32 hipcie, hipct, hipcte;
+ int ipc_irq = 0;
+
+ /* Here we handle IPC interrupts only */
+ if (!(dsp->intr_status & SKL_ADSPIS_IPC))
+ return IRQ_HANDLED;
+
+ hipcie = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCIE);
+ hipct = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCT);
+
+ /* reply message from DSP */
+ if (hipcie & SKL_ADSP_REG_HIPCIE_DONE) {
+ sst_dsp_shim_update_bits(dsp, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_DONE, 0);
+
+ /* clear DONE bit - tell DSP we have completed the operation */
+ sst_dsp_shim_update_bits_forced(dsp, SKL_ADSP_REG_HIPCIE,
+ SKL_ADSP_REG_HIPCIE_DONE, SKL_ADSP_REG_HIPCIE_DONE);
+
+ ipc_irq = 1;
+
+ /* unmask Done interrupt */
+ sst_dsp_shim_update_bits(dsp, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_DONE, SKL_ADSP_REG_HIPCCTL_DONE);
+ }
+
+ /* New message from DSP */
+ if (hipct & SKL_ADSP_REG_HIPCT_BUSY) {
+ hipcte = sst_dsp_shim_read_unlocked(dsp, SKL_ADSP_REG_HIPCTE);
+ header.primary = hipct;
+ header.extension = hipcte;
+ dev_dbg(dsp->dev, "IPC irq: Firmware respond primary:%x", header.primary);
+ dev_dbg(dsp->dev, "IPC irq: Firmware respond extension:%x", header.extension);
+
+ if (IPC_GLB_NOTIFY_RSP_TYPE(header.primary)) {
+ /* Handle Immediate reply from DSP Core */
+ skl_ipc_process_reply(ipc, header);
+ } else {
+ trace_printk("IPC irq: Notification from firmware\n");
+ skl_ipc_process_notification(ipc, header);
+ }
+ /* clear busy interrupt */
+ sst_dsp_shim_update_bits_forced(dsp, SKL_ADSP_REG_HIPCT,
+ SKL_ADSP_REG_HIPCT_BUSY, SKL_ADSP_REG_HIPCT_BUSY);
+ ipc_irq = 1;
+ }
+
+ if (ipc_irq == 0)
+ return IRQ_HANDLED;
+
+ skl_ipc_int_enable(dsp);
+
+ /* continue to send any remaining messages... */
+ queue_kthread_work(&ipc->kworker, &ipc->kwork);
+
+ return IRQ_HANDLED;
+}
+
+void skl_ipc_int_enable(struct sst_dsp *ctx)
+{
+ sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_ADSPIC,
+ SKL_ADSPIC_IPC, SKL_ADSPIC_IPC);
+}
+
+void skl_ipc_int_disable(struct sst_dsp *ctx)
+{
+ sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPIC,
+ SKL_ADSPIC_IPC, 0);
+}
+
+void skl_ipc_op_int_enable(struct sst_dsp *ctx)
+{
+ /* enable IPC DONE interrupt */
+ sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_DONE, SKL_ADSP_REG_HIPCCTL_DONE);
+
+ /* Enable IPC BUSY interrupt */
+ sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_BUSY, SKL_ADSP_REG_HIPCCTL_BUSY);
+}
+
+bool skl_ipc_int_status(struct sst_dsp *ctx)
+{
+ return sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPIS) & SKL_ADSPIS_IPC;
+}
+
+int skl_ipc_init(struct device *dev, struct skl_sst *skl)
+{
+ struct sst_generic_ipc *ipc;
+ int err;
+
+ ipc = &skl->ipc;
+ ipc->dsp = skl->dsp;
+ ipc->dev = dev;
+
+ ipc->tx_data_max_size = SKL_ADSP_W1_SZ;
+ ipc->rx_data_max_size = SKL_ADSP_W0_UP_SZ;
+
+ err = sst_ipc_init(ipc);
+ if (err)
+ return err;
+
+ ipc->ops.tx_msg = skl_ipc_tx_msg;
+ ipc->ops.tx_data_copy = skl_ipc_tx_data_copy;
+ ipc->ops.is_dsp_busy = skl_ipc_is_dsp_busy;
+
+ return 0;
+}
+
+void skl_ipc_free(struct sst_generic_ipc *ipc)
+{
+ /* Disable IPC DONE interrupt */
+ sst_dsp_shim_update_bits(ipc->dsp, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_DONE, 0);
+
+ /* Disable IPC BUSY interrupt */
+ sst_dsp_shim_update_bits(ipc->dsp, SKL_ADSP_REG_HIPCCTL,
+ SKL_ADSP_REG_HIPCCTL_BUSY, 0);
+}
+
+int skl_ipc_create_pipeline(struct sst_generic_ipc *ipc,
+ u16 ppl_mem_size, u8 ppl_type, u8 instance_id)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_GLB_CREATE_PPL);
+ header.primary |= IPC_INSTANCE_ID(instance_id);
+ header.primary |= IPC_PPL_TYPE(ppl_type);
+ header.primary |= IPC_PPL_MEM_SIZE(ppl_mem_size);
+
+ dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: create pipeline failed, err: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_create_pipeline);
+
+int skl_ipc_delete_pipeline(struct sst_generic_ipc *ipc, u8 instance_id)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_GLB_DELETE_PPL);
+ header.primary |= IPC_INSTANCE_ID(instance_id);
+
+ dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: delete pipeline failed, err %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_delete_pipeline);
+
+int skl_ipc_set_pipeline_state(struct sst_generic_ipc *ipc, u8 instance_id,
+ enum skl_ipc_pipeline_state state)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_GLB_SET_PPL_STATE);
+ header.primary |= IPC_INSTANCE_ID(instance_id);
+ header.primary |= IPC_PPL_STATE(state);
+
+ dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: set pipeline state failed, err: %d\n", ret);
+ return ret;
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_set_pipeline_state);
+
+int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc, u8 instance_id, int dma_id)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_GLB_SAVE_PPL);
+ header.primary |= IPC_INSTANCE_ID(instance_id);
+
+ header.extension = IPC_DMA_ID(dma_id);
+ dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: save pipeline failed, err: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_save_pipeline);
+
+int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_GLB_RESTORE_PPL);
+ header.primary |= IPC_INSTANCE_ID(instance_id);
+
+ dev_dbg(ipc->dev, "In %s header=%d\n", __func__, header.primary);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: restore pipeline failed, err: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_restore_pipeline);
+
+int skl_ipc_set_dx(struct sst_generic_ipc *ipc, u8 instance_id,
+ u16 module_id, struct skl_ipc_dxstate_info *dx)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_MOD_SET_DX);
+ header.primary |= IPC_MOD_INSTANCE_ID(instance_id);
+ header.primary |= IPC_MOD_ID(module_id);
+
+ dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__,
+ header.primary, header.extension);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header,
+ (void *)dx, sizeof(dx), NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: set dx failed, err %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_set_dx);
+
+int skl_ipc_init_instance(struct sst_generic_ipc *ipc,
+ struct skl_ipc_init_instance_msg *msg, void *param_data)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret;
+ u32 *buffer = (u32 *)param_data;
+ /* param_block_size must be in dwords */
+ u16 param_block_size = msg->param_data_size / sizeof(u32);
+
+ print_hex_dump(KERN_DEBUG, NULL, DUMP_PREFIX_NONE,
+ 16, 4, buffer, param_block_size, false);
+
+ header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_MOD_INIT_INSTANCE);
+ header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
+ header.primary |= IPC_MOD_ID(msg->module_id);
+
+ header.extension = IPC_CORE_ID(msg->core_id);
+ header.extension |= IPC_PPL_INSTANCE_ID(msg->ppl_instance_id);
+ header.extension |= IPC_PARAM_BLOCK_SIZE(param_block_size);
+
+ dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__,
+ header.primary, header.extension);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, param_data,
+ msg->param_data_size, NULL, 0);
+
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: init instance failed\n");
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_init_instance);
+
+int skl_ipc_bind_unbind(struct sst_generic_ipc *ipc,
+ struct skl_ipc_bind_unbind_msg *msg)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ u8 bind_unbind = msg->bind ? IPC_MOD_BIND : IPC_MOD_UNBIND;
+ int ret;
+
+ header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(bind_unbind);
+ header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
+ header.primary |= IPC_MOD_ID(msg->module_id);
+
+ header.extension = IPC_DST_MOD_ID(msg->dst_module_id);
+ header.extension |= IPC_DST_MOD_INSTANCE_ID(msg->dst_instance_id);
+ header.extension |= IPC_DST_QUEUE(msg->dst_queue);
+ header.extension |= IPC_SRC_QUEUE(msg->src_queue);
+
+ dev_dbg(ipc->dev, "In %s hdr=%x ext=%x\n", __func__, header.primary,
+ header.extension);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: bind/unbind faileden");
+ return ret;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_bind_unbind);
+
+int skl_ipc_set_large_config(struct sst_generic_ipc *ipc, struct skl_ipc_large_config_msg *msg,
+ u32 *param)
+{
+ struct skl_ipc_header header = {0};
+ u64 *ipc_header = (u64 *)(&header);
+ int ret = 0;
+ size_t sz_remaining, tx_size, data_offset;
+
+ header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+ header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+ header.primary |= IPC_GLB_TYPE(IPC_MOD_LARGE_CONFIG_SET);
+ header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
+ header.primary |= IPC_MOD_ID(msg->module_id);
+
+ header.extension = IPC_DATA_OFFSET_SZ(msg->param_data_size);
+ header.extension |= IPC_LARGE_PARAM_ID(msg->large_param_id);
+ header.extension |= IPC_FINAL_BLOCK(0);
+ header.extension |= IPC_INITIAL_BLOCK(1);
+
+ sz_remaining = msg->param_data_size;
+ data_offset = 0;
+ while (sz_remaining != 0) {
+ tx_size = sz_remaining > SKL_ADSP_W1_SZ
+ ? SKL_ADSP_W1_SZ : sz_remaining;
+ if (tx_size == sz_remaining)
+ header.extension |= IPC_FINAL_BLOCK(1);
+
+ dev_dbg(ipc->dev, "In %s primary=%#x ext=%#x\n", __func__,
+ header.primary, header.extension);
+ dev_dbg(ipc->dev, "transmitting offset: %#x, size: %#x\n",
+ (unsigned)data_offset, (unsigned)tx_size);
+ ret = sst_ipc_tx_message_wait(ipc, *ipc_header,
+ ((char *)param) + data_offset,
+ tx_size, NULL, 0);
+ if (ret < 0) {
+ dev_err(ipc->dev, "ipc: set large config failed, err: %d\n", ret);
+ return ret;
+ }
+ sz_remaining -= tx_size;
+ data_offset = msg->param_data_size - sz_remaining;
+
+ /* clear the fields */
+ header.extension &= IPC_INITIAL_BLOCK_CLEAR;
+ header.extension &= IPC_DATA_OFFSET_SZ_CLEAR;
+ /* fill the fields */
+ header.extension |= IPC_INITIAL_BLOCK(0);
+ header.extension |= IPC_DATA_OFFSET_SZ(data_offset);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_set_large_config);
new file mode 100644
@@ -0,0 +1,125 @@
+/*
+ * Intel SKL IPC Support
+ *
+ * Copyright (C) 2014-15, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef __SKL_IPC_H
+#define __SKL_IPC_H
+
+#include <linux/kthread.h>
+#include <linux/irqreturn.h>
+#include "../common/sst-ipc.h"
+
+struct sst_dsp;
+struct skl_sst;
+struct sst_generic_ipc;
+
+enum skl_ipc_pipeline_state {
+ PPL_INVALID_STATE = 0,
+ PPL_UNINITIALIZED = 1,
+ PPL_RESET = 2,
+ PPL_PAUSED = 3,
+ PPL_RUNNING = 4,
+ PPL_ERROR_STOP = 5,
+ PPL_SAVED = 6,
+ PPL_RESTORED = 7
+};
+
+struct skl_ipc_dxstate_info {
+ u32 core_mask;
+ u32 dx_mask;
+};
+
+struct skl_ipc_header {
+ u32 primary;
+ u32 extension;
+};
+
+struct skl_sst {
+ struct device *dev;
+ struct sst_dsp *dsp;
+
+ /* boot */
+ wait_queue_head_t boot_wait;
+ bool boot_complete;
+
+ /* IPC messaging */
+ struct sst_generic_ipc ipc;
+};
+
+struct skl_ipc_init_instance_msg {
+ u32 module_id;
+ u32 instance_id;
+ u16 param_data_size;
+ u8 ppl_instance_id;
+ u8 core_id;
+};
+
+struct skl_ipc_bind_unbind_msg {
+ u32 module_id;
+ u32 instance_id;
+ u32 dst_module_id;
+ u32 dst_instance_id;
+ u8 src_queue;
+ u8 dst_queue;
+ bool bind;
+};
+
+struct skl_ipc_large_config_msg {
+ u32 module_id;
+ u32 instance_id;
+ u32 large_param_id;
+ u32 param_data_size;
+};
+
+#define SKL_IPC_BOOT_MSECS 3000
+
+#define SKL_IPC_D3_MASK 0
+#define SKL_IPC_D0_MASK 3
+
+irqreturn_t skl_dsp_irq_thread_handler(int irq, void *context);
+
+int skl_ipc_create_pipeline(struct sst_generic_ipc *sst_ipc,
+ u16 ppl_mem_size, u8 ppl_type, u8 instance_id);
+
+int skl_ipc_delete_pipeline(struct sst_generic_ipc *sst_ipc, u8 instance_id);
+
+int skl_ipc_set_pipeline_state(struct sst_generic_ipc *sst_ipc,
+ u8 instance_id, enum skl_ipc_pipeline_state state);
+
+int skl_ipc_save_pipeline(struct sst_generic_ipc *ipc,
+ u8 instance_id, int dma_id);
+
+int skl_ipc_restore_pipeline(struct sst_generic_ipc *ipc, u8 instance_id);
+
+int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
+ struct skl_ipc_init_instance_msg *msg, void *param_data);
+
+int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
+ struct skl_ipc_bind_unbind_msg *msg);
+
+int skl_ipc_set_dx(struct sst_generic_ipc *ipc,
+ u8 instance_id, u16 module_id, struct skl_ipc_dxstate_info *dx);
+
+int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
+ struct skl_ipc_large_config_msg *msg, u32 *param);
+
+void skl_ipc_int_enable(struct sst_dsp *dsp);
+void skl_ipc_op_int_enable(struct sst_dsp *ctx);
+void skl_ipc_int_disable(struct sst_dsp *dsp);
+
+bool skl_ipc_int_status(struct sst_dsp *dsp);
+void skl_ipc_free(struct sst_generic_ipc *ipc);
+int skl_ipc_init(struct device *dev, struct skl_sst *skl);
+
+#endif /* __SKL_IPC_H */