@@ -9,6 +9,8 @@
#define __SND_SOC_INTEL_CATPT_CORE_H
#include <linux/dma/dw.h>
+#include <linux/irqreturn.h>
+#include "messages.h"
#include "registers.h"
struct catpt_dev;
@@ -29,6 +31,31 @@ static inline bool catpt_resource_overlapping(struct resource *r1,
return true;
}
+struct catpt_ipc_msg {
+ union {
+ u32 header;
+ union catpt_global_msg rsp;
+ };
+ void *data;
+ size_t size;
+};
+
+struct catpt_ipc {
+ struct device *dev;
+
+ struct catpt_ipc_msg rx;
+ struct catpt_fw_ready config;
+ u32 default_timeout;
+ bool ready;
+
+ spinlock_t lock;
+ struct mutex mutex;
+ struct completion done_completion;
+ struct completion busy_completion;
+};
+
+void catpt_ipc_init(struct catpt_ipc *ipc, struct device *dev);
+
struct catpt_module_type {
bool loaded;
u32 entry_point;
@@ -59,6 +86,7 @@ struct catpt_spec {
struct catpt_dev {
struct device *dev;
struct dw_dma_chip *dmac;
+ struct catpt_ipc ipc;
void __iomem *pci_ba;
void __iomem *lpe_ba;
@@ -83,4 +111,20 @@ int catpt_dma_memcpy_fromdsp(struct catpt_dev *cdev, struct dma_chan *chan,
dma_addr_t dst_addr, dma_addr_t src_addr,
size_t size);
+irqreturn_t catpt_dsp_irq_handler(int irq, void *dev_id);
+irqreturn_t catpt_dsp_irq_thread(int irq, void *dev_id);
+
+/*
+ * IPC handlers may return positive values which denote successful
+ * HOST <-> DSP communication yet failure to process specific request.
+ * Use below macro to convert returned non-zero values appropriately
+ */
+#define CATPT_IPC_ERROR(err) (((err) < 0) ? (err) : -EREMOTEIO)
+
+int catpt_dsp_send_msg_timeout(struct catpt_dev *cdev,
+ struct catpt_ipc_msg request,
+ struct catpt_ipc_msg *reply, int timeout);
+int catpt_dsp_send_msg(struct catpt_dev *cdev, struct catpt_ipc_msg request,
+ struct catpt_ipc_msg *reply);
+
#endif
new file mode 100644
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2020 Intel Corporation. All rights reserved.
+//
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <linux/irqreturn.h>
+#include "core.h"
+#include "messages.h"
+#include "registers.h"
+
+#define CATPT_IPC_TIMEOUT_MS 300
+
+void catpt_ipc_init(struct catpt_ipc *ipc, struct device *dev)
+{
+ ipc->dev = dev;
+ ipc->ready = false;
+ ipc->default_timeout = CATPT_IPC_TIMEOUT_MS;
+ init_completion(&ipc->done_completion);
+ init_completion(&ipc->busy_completion);
+ spin_lock_init(&ipc->lock);
+ mutex_init(&ipc->mutex);
+}
+
+static int catpt_ipc_arm(struct catpt_ipc *ipc, struct catpt_fw_ready *config)
+{
+ /*
+ * Both tx and rx are put into and received from outbox. Inbox is
+ * only used for notifications where payload size is known upfront,
+ * thus no separate buffer is allocated for it.
+ */
+ ipc->rx.data = devm_kzalloc(ipc->dev, config->outbox_size, GFP_KERNEL);
+ if (!ipc->rx.data)
+ return -ENOMEM;
+
+ memcpy(&ipc->config, config, sizeof(*config));
+ ipc->ready = true;
+
+ return 0;
+}
+
+static void catpt_ipc_msg_init(struct catpt_ipc *ipc,
+ struct catpt_ipc_msg *reply)
+{
+ lockdep_assert_held(&ipc->lock);
+
+ ipc->rx.header = 0;
+ ipc->rx.size = reply ? reply->size : 0;
+ reinit_completion(&ipc->done_completion);
+ reinit_completion(&ipc->busy_completion);
+}
+
+static void catpt_dsp_send_tx(struct catpt_dev *cdev,
+ const struct catpt_ipc_msg *tx)
+{
+ u32 header = tx->header | CATPT_IPCC_BUSY;
+
+ if (tx->size)
+ memcpy_toio(catpt_outbox_addr(cdev), tx->data, tx->size);
+ catpt_writel_shim(cdev, IPCC, header);
+}
+
+static int catpt_wait_msg_completion(struct catpt_dev *cdev, int timeout)
+{
+ struct catpt_ipc *ipc = &cdev->ipc;
+ int ret;
+
+ ret = wait_for_completion_timeout(&ipc->done_completion,
+ msecs_to_jiffies(timeout));
+ if (!ret)
+ return -ETIMEDOUT;
+ if (ipc->rx.rsp.status != CATPT_REPLY_PENDING)
+ return 0;
+
+ /* wait for delayed reply */
+ ret = wait_for_completion_timeout(&ipc->busy_completion,
+ msecs_to_jiffies(timeout));
+ return ret ? 0 : -ETIMEDOUT;
+}
+
+static int catpt_dsp_do_send_msg(struct catpt_dev *cdev,
+ struct catpt_ipc_msg request,
+ struct catpt_ipc_msg *reply, int timeout)
+{
+ struct catpt_ipc *ipc = &cdev->ipc;
+ unsigned long flags;
+ int ret;
+
+ if (!ipc->ready)
+ return -EPERM;
+ if (request.size > ipc->config.outbox_size ||
+ (reply && reply->size > ipc->config.outbox_size))
+ return -EINVAL;
+
+ spin_lock_irqsave(&ipc->lock, flags);
+ catpt_ipc_msg_init(ipc, reply);
+ catpt_dsp_send_tx(cdev, &request);
+ spin_unlock_irqrestore(&ipc->lock, flags);
+
+ ret = catpt_wait_msg_completion(cdev, timeout);
+ if (ret) {
+ dev_crit(cdev->dev, "communication severed: %d, rebooting dsp..\n",
+ ret);
+ ipc->ready = false;
+ /* TODO: attempt recovery */
+ return ret;
+ }
+
+ ret = ipc->rx.rsp.status;
+ if (reply) {
+ reply->header = ipc->rx.header;
+ if (!ret && reply->data && reply->size)
+ memcpy(reply->data, ipc->rx.data, ipc->rx.size);
+ }
+
+ return ret;
+}
+
+int catpt_dsp_send_msg_timeout(struct catpt_dev *cdev,
+ struct catpt_ipc_msg request,
+ struct catpt_ipc_msg *reply, int timeout)
+{
+ struct catpt_ipc *ipc = &cdev->ipc;
+ int ret;
+
+ mutex_lock(&ipc->mutex);
+ ret = catpt_dsp_do_send_msg(cdev, request, reply, timeout);
+ mutex_unlock(&ipc->mutex);
+
+ return ret;
+}
+
+int catpt_dsp_send_msg(struct catpt_dev *cdev, struct catpt_ipc_msg request,
+ struct catpt_ipc_msg *reply)
+{
+ return catpt_dsp_send_msg_timeout(cdev, request, reply,
+ cdev->ipc.default_timeout);
+}
+
+static void catpt_dsp_copy_rx(struct catpt_dev *cdev, u32 header)
+{
+ struct catpt_ipc *ipc = &cdev->ipc;
+
+ ipc->rx.header = header;
+ if (ipc->rx.size && ipc->rx.rsp.status == CATPT_REPLY_SUCCESS) {
+ memcpy_fromio(ipc->rx.data, catpt_outbox_addr(cdev),
+ ipc->rx.size);
+ }
+}
+
+static void catpt_dsp_process_response(struct catpt_dev *cdev, u32 header)
+{
+ union catpt_notify_msg msg = CATPT_MSG(header);
+ struct catpt_ipc *ipc = &cdev->ipc;
+
+ if (msg.fw_ready) {
+ struct catpt_fw_ready config;
+ /* to fit 32b header original address is shifted right by 3 */
+ u32 off = msg.mailbox_address << 3;
+
+ memcpy_fromio(&config, cdev->lpe_ba + off, sizeof(config));
+
+ catpt_ipc_arm(ipc, &config);
+ complete(&cdev->fw_ready);
+ return;
+ }
+
+ switch (msg.global_msg_type) {
+ case CATPT_GLB_REQUEST_CORE_DUMP:
+ break;
+
+ case CATPT_GLB_STREAM_MESSAGE:
+ switch (msg.stream_msg_type) {
+ case CATPT_STRM_NOTIFICATION:
+ break;
+ default:
+ catpt_dsp_copy_rx(cdev, header);
+ /* signal completion of delayed reply */
+ complete(&ipc->busy_completion);
+ break;
+ }
+ break;
+
+ default:
+ dev_warn(cdev->dev, "unknown response: %d received\n",
+ msg.global_msg_type);
+ break;
+ }
+}
+
+irqreturn_t catpt_dsp_irq_thread(int irq, void *dev_id)
+{
+ struct catpt_dev *cdev = dev_id;
+ u32 ipcd;
+
+ ipcd = catpt_readl_shim(cdev, IPCD);
+
+ /* ensure there is delayed reply or notification to process */
+ if (!(ipcd & CATPT_IPCD_BUSY))
+ return IRQ_NONE;
+
+ catpt_dsp_process_response(cdev, ipcd);
+
+ /* tell DSP processing is completed */
+ catpt_updatel_shim(cdev, IPCD, CATPT_IPCD_BUSY | CATPT_IPCD_DONE,
+ CATPT_IPCD_DONE);
+ /* unmask dsp BUSY interrupt */
+ catpt_updatel_shim(cdev, IMC, CATPT_IMC_IPCDB, 0);
+
+ return IRQ_HANDLED;
+}
+
+irqreturn_t catpt_dsp_irq_handler(int irq, void *dev_id)
+{
+ struct catpt_dev *cdev = dev_id;
+ irqreturn_t ret = IRQ_NONE;
+ u32 isc, ipcc;
+
+ isc = catpt_readl_shim(cdev, ISC);
+
+ /* immediate reply */
+ if (isc & CATPT_ISC_IPCCD) {
+ /* mask host DONE interrupt */
+ catpt_updatel_shim(cdev, IMC, CATPT_IMC_IPCCD, CATPT_IMC_IPCCD);
+
+ ipcc = catpt_readl_shim(cdev, IPCC);
+ catpt_dsp_copy_rx(cdev, ipcc);
+ complete(&cdev->ipc.done_completion);
+
+ /* tell DSP processing is completed */
+ catpt_updatel_shim(cdev, IPCC, CATPT_IPCC_DONE, 0);
+ /* unmask host DONE interrupt */
+ catpt_updatel_shim(cdev, IMC, CATPT_IMC_IPCCD, 0);
+ ret = IRQ_HANDLED;
+ }
+
+ /* delayed reply or notification */
+ if (isc & CATPT_ISC_IPCDB) {
+ /* mask dsp BUSY interrupt */
+ catpt_updatel_shim(cdev, IMC, CATPT_IMC_IPCDB, CATPT_IMC_IPCDB);
+ ret = IRQ_WAKE_THREAD;
+ }
+
+ return ret;
+}
new file mode 100644
@@ -0,0 +1,401 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright(c) 2020 Intel Corporation. All rights reserved.
+ *
+ * Author: Cezary Rojewski <cezary.rojewski@intel.com>
+ */
+
+#ifndef __SND_SOC_INTEL_CATPT_MSG_H
+#define __SND_SOC_INTEL_CATPT_MSG_H
+
+struct catpt_dev;
+
+/* IPC messages base types */
+
+enum catpt_reply_status {
+ CATPT_REPLY_SUCCESS = 0,
+ CATPT_REPLY_ERROR_INVALID_PARAM = 1,
+ CATPT_REPLY_UNKNOWN_MESSAGE_TYPE = 2,
+ CATPT_REPLY_OUT_OF_RESOURCES = 3,
+ CATPT_REPLY_BUSY = 4,
+ CATPT_REPLY_PENDING = 5,
+ CATPT_REPLY_FAILURE = 6,
+ CATPT_REPLY_INVALID_REQUEST = 7,
+ CATPT_REPLY_UNINITIALIZED = 8,
+ CATPT_REPLY_NOT_FOUND = 9,
+ CATPT_REPLY_SOURCE_NOT_STARTED = 10,
+};
+
+/* GLOBAL messages */
+
+enum catpt_global_msg_type {
+ CATPT_GLB_GET_FW_VERSION = 0,
+ CATPT_GLB_ALLOCATE_STREAM = 3,
+ CATPT_GLB_FREE_STREAM = 4,
+ CATPT_GLB_STREAM_MESSAGE = 6,
+ CATPT_GLB_REQUEST_CORE_DUMP = 7,
+ CATPT_GLB_SET_DEVICE_FORMATS = 10,
+ CATPT_GLB_ENTER_DX_STATE = 12,
+ CATPT_GLB_GET_MIXER_STREAM_INFO = 13,
+};
+
+union catpt_global_msg {
+ u32 val;
+ struct {
+ u32 status:5;
+ u32 context:19; /* stream or module specific */
+ u32 global_msg_type:5;
+ u32 fw_ready:1;
+ u32 done:1;
+ u32 busy:1;
+ };
+} __packed;
+
+#define CATPT_MSG(hdr) { .val = hdr }
+#define CATPT_GLOBAL_MSG(msg_type) \
+ { .global_msg_type = CATPT_GLB_##msg_type }
+
+#define BUILD_HASH_SIZE 40
+
+struct catpt_fw_version {
+ u8 build;
+ u8 minor;
+ u8 major;
+ u8 type;
+ u8 build_hash[BUILD_HASH_SIZE];
+ u32 log_providers_hash;
+} __packed;
+
+int catpt_ipc_get_fw_version(struct catpt_dev *cdev,
+ struct catpt_fw_version *version);
+
+enum catpt_pin_id {
+ CATPT_PIN_ID_SYSTEM = 0,
+ CATPT_PIN_ID_REFERENCE = 1,
+ CATPT_PIN_ID_CAPTURE1 = 2,
+ CATPT_PIN_ID_CAPTURE2 = 3,
+ CATPT_PIN_ID_OFFLOAD1 = 4,
+ CATPT_PIN_ID_OFFLOAD2 = 5,
+ CATPT_PIN_ID_MIXER = 7,
+ CATPT_PIN_ID_BLUETOOTH_CAPTURE = 8,
+ CATPT_PIN_ID_BLUETOOTH_RENDER = 9,
+};
+
+enum catpt_path_id {
+ CATPT_PATH_SSP0_OUT = 0,
+ CATPT_PATH_SSP0_IN = 1,
+ CATPT_PATH_SSP1_OUT = 2,
+ CATPT_PATH_SSP1_IN = 3,
+ /* duplicated audio in capture path */
+ CATPT_PATH_SSP0_IN_DUP = 4,
+};
+
+enum catpt_stream_type {
+ CATPT_STRM_TYPE_RENDER = 0, /* offload */
+ CATPT_STRM_TYPE_SYSTEM = 1,
+ CATPT_STRM_TYPE_CAPTURE = 2,
+ CATPT_STRM_TYPE_LOOPBACK = 3,
+ CATPT_STRM_TYPE_BLUETOOTH_RENDER = 4,
+ CATPT_STRM_TYPE_BLUETOOTH_CAPTURE = 5,
+};
+
+enum catpt_format_id {
+ CATPT_FORMAT_PCM = 0,
+ CATPT_FORMAT_MP3 = 1,
+ CATPT_FORMAT_AAC = 2,
+ CATPT_FORMAT_WMA = 3,
+};
+
+enum catpt_channel_index {
+ CATPT_CHANNEL_LEFT = 0x0,
+ CATPT_CHANNEL_CENTER = 0x1,
+ CATPT_CHANNEL_RIGHT = 0x2,
+ CATPT_CHANNEL_LEFT_SURROUND = 0x3,
+ CATPT_CHANNEL_CENTER_SURROUND = 0x3,
+ CATPT_CHANNEL_RIGHT_SURROUND = 0x4,
+ CATPT_CHANNEL_LFE = 0x7,
+ CATPT_CHANNEL_INVALID = 0xF,
+};
+
+enum catpt_channel_config {
+ CATPT_CHANNEL_CONFIG_MONO = 0, /* One channel only */
+ CATPT_CHANNEL_CONFIG_STEREO = 1, /* L & R */
+ CATPT_CHANNEL_CONFIG_2_POINT_1 = 2, /* L, R & LFE; PCM only */
+ CATPT_CHANNEL_CONFIG_3_POINT_0 = 3, /* L, C & R; MP3 & AAC only */
+ CATPT_CHANNEL_CONFIG_3_POINT_1 = 4, /* L, C, R & LFE; PCM only */
+ CATPT_CHANNEL_CONFIG_QUATRO = 5, /* L, R, Ls & Rs; PCM only */
+ CATPT_CHANNEL_CONFIG_4_POINT_0 = 6, /* L, C, R & Cs; MP3 & AAC only */
+ CATPT_CHANNEL_CONFIG_5_POINT_0 = 7, /* L, C, R, Ls & Rs */
+ CATPT_CHANNEL_CONFIG_5_POINT_1 = 8, /* L, C, R, Ls, Rs & LFE */
+ CATPT_CHANNEL_CONFIG_DUAL_MONO = 9, /* One channel replicated in two */
+ CATPT_CHANNEL_CONFIG_INVALID = 10,
+};
+
+enum catpt_interleaving_style {
+ CATPT_INTERLEAVING_PER_CHANNEL = 0,
+ CATPT_INTERLEAVING_PER_SAMPLE = 1,
+};
+
+struct catpt_audio_format {
+ u32 sample_rate;
+ u32 bit_depth;
+ u32 channel_map;
+ u32 channel_config;
+ u32 interleaving;
+ u8 num_channels;
+ u8 valid_bit_depth;
+ u8 reserved[2];
+} __packed;
+
+struct catpt_ring_info {
+ u32 page_table_addr;
+ u32 num_pages;
+ u32 size;
+ u32 offset;
+ u32 ring_first_page_pfn;
+} __packed;
+
+#define CATPT_MODULE_COUNT (CATPT_MODID_LAST + 1)
+
+enum catpt_module_id {
+ CATPT_MODID_BASE_FW = 0x0,
+ CATPT_MODID_MP3 = 0x1,
+ CATPT_MODID_AAC_5_1 = 0x2,
+ CATPT_MODID_AAC_2_0 = 0x3,
+ CATPT_MODID_SRC = 0x4,
+ CATPT_MODID_WAVES = 0x5,
+ CATPT_MODID_DOLBY = 0x6,
+ CATPT_MODID_BOOST = 0x7,
+ CATPT_MODID_LPAL = 0x8,
+ CATPT_MODID_DTS = 0x9,
+ CATPT_MODID_PCM_CAPTURE = 0xA,
+ CATPT_MODID_PCM_SYSTEM = 0xB,
+ CATPT_MODID_PCM_REFERENCE = 0xC,
+ CATPT_MODID_PCM = 0xD, /* offload */
+ CATPT_MODID_BLUETOOTH_RENDER = 0xE,
+ CATPT_MODID_BLUETOOTH_CAPTURE = 0xF,
+ CATPT_MODID_LAST = CATPT_MODID_BLUETOOTH_CAPTURE,
+};
+
+struct catpt_module_entry {
+ u32 module_id;
+ u32 entry_point;
+} __packed;
+
+struct catpt_module_map {
+ u8 num_entries;
+ struct catpt_module_entry entries[];
+} __packed;
+
+struct catpt_memory_info {
+ u32 offset;
+ u32 size;
+} __packed;
+
+#define CATPT_CHANNELS_MAX 4
+#define CATPT_ALL_CHANNELS_MASK UINT_MAX
+
+struct catpt_stream_info {
+ u32 stream_hw_id;
+ u32 reserved;
+ u32 read_pos_regaddr;
+ u32 pres_pos_regaddr;
+ u32 peak_meter_regaddr[CATPT_CHANNELS_MAX];
+ u32 volume_regaddr[CATPT_CHANNELS_MAX];
+} __packed;
+
+int catpt_ipc_alloc_stream(struct catpt_dev *cdev,
+ enum catpt_path_id path_id,
+ enum catpt_stream_type type,
+ struct catpt_audio_format *afmt,
+ struct catpt_ring_info *rinfo,
+ u8 num_modules,
+ struct catpt_module_entry *modules,
+ struct resource *persistent,
+ struct resource *scratch,
+ struct catpt_stream_info *sinfo);
+int catpt_ipc_free_stream(struct catpt_dev *cdev, u8 stream_hw_id);
+
+enum catpt_ssp_iface {
+ CATPT_SSP_IFACE_0 = 0,
+ CATPT_SSP_IFACE_1 = 1,
+ CATPT_SSP_IFACE_LAST = CATPT_SSP_IFACE_1,
+};
+
+#define CATPT_SSP_COUNT (CATPT_SSP_IFACE_LAST + 1)
+
+enum catpt_mclk_frequency {
+ CATPT_MCLK_OFF = 0,
+ CATPT_MCLK_FREQ_6_MHZ = 1,
+ CATPT_MCLK_FREQ_21_MHZ = 2,
+ CATPT_MCLK_FREQ_24_MHZ = 3,
+};
+
+enum catpt_ssp_mode {
+ CATPT_SSP_MODE_I2S_CONSUMER = 0,
+ CATPT_SSP_MODE_I2S_PROVIDER = 1,
+ CATPT_SSP_MODE_TDM_PROVIDER = 2,
+};
+
+struct catpt_ssp_device_format {
+ u32 iface;
+ u32 mclk;
+ u32 mode;
+ u16 clock_divider;
+ u8 channels;
+} __packed;
+
+int catpt_ipc_set_device_format(struct catpt_dev *cdev,
+ struct catpt_ssp_device_format *devfmt);
+
+enum catpt_dx_state {
+ CATPT_DX_STATE_D3 = 3,
+};
+
+enum catpt_dx_type {
+ CATPT_DX_TYPE_FW_IMAGE = 0,
+ CATPT_DX_TYPE_MEMORY_DUMP = 1,
+};
+
+struct catpt_save_meminfo {
+ u32 offset;
+ u32 size;
+ u32 source;
+} __packed;
+
+#define SAVE_MEMINFO_MAX 14
+
+struct catpt_dx_context {
+ u32 num_meminfo;
+ struct catpt_save_meminfo meminfo[SAVE_MEMINFO_MAX];
+} __packed;
+
+int catpt_ipc_enter_dxstate(struct catpt_dev *cdev, enum catpt_dx_state state,
+ struct catpt_dx_context *context);
+
+struct catpt_mixer_stream_info {
+ u32 mixer_hw_id;
+ u32 peak_meter_regaddr[CATPT_CHANNELS_MAX];
+ u32 volume_regaddr[CATPT_CHANNELS_MAX];
+} __packed;
+
+int catpt_ipc_get_mixer_stream_info(struct catpt_dev *cdev,
+ struct catpt_mixer_stream_info *info);
+
+/* STREAM messages */
+
+enum catpt_stream_msg_type {
+ CATPT_STRM_RESET_STREAM = 0,
+ CATPT_STRM_PAUSE_STREAM = 1,
+ CATPT_STRM_RESUME_STREAM = 2,
+ CATPT_STRM_STAGE_MESSAGE = 3,
+ CATPT_STRM_NOTIFICATION = 4,
+};
+
+enum catpt_stage_action {
+ CATPT_STG_SET_VOLUME = 1,
+ CATPT_STG_SET_WRITE_POSITION = 2,
+ CATPT_STG_MUTE_LOOPBACK = 3,
+};
+
+union catpt_stream_msg {
+ u32 val;
+ struct {
+ u32 status:5;
+ u32 reserved:7;
+ u32 stage_action:4;
+ u32 stream_hw_id:4;
+ u32 stream_msg_type:4;
+ u32 global_msg_type:5;
+ u32 fw_ready:1;
+ u32 done:1;
+ u32 busy:1;
+ };
+} __packed;
+
+#define CATPT_STREAM_MSG(msg_type) \
+{ \
+ .stream_msg_type = CATPT_STRM_##msg_type, \
+ .global_msg_type = CATPT_GLB_STREAM_MESSAGE }
+#define CATPT_STAGE_MSG(msg_type) \
+{ \
+ .stage_action = CATPT_STG_##msg_type, \
+ .stream_msg_type = CATPT_STRM_STAGE_MESSAGE, \
+ .global_msg_type = CATPT_GLB_STREAM_MESSAGE }
+
+int catpt_ipc_reset_stream(struct catpt_dev *cdev, u8 stream_hw_id);
+int catpt_ipc_pause_stream(struct catpt_dev *cdev, u8 stream_hw_id);
+int catpt_ipc_resume_stream(struct catpt_dev *cdev, u8 stream_hw_id);
+
+/* STREAM messages - STAGE subtype */
+
+enum catpt_audio_curve_type {
+ CATPT_AUDIO_CURVE_NONE = 0,
+ CATPT_AUDIO_CURVE_WINDOWS_FADE = 1,
+};
+
+int catpt_ipc_set_volume(struct catpt_dev *cdev, u8 stream_hw_id,
+ u32 channel, u32 volume,
+ u32 curve_duration,
+ enum catpt_audio_curve_type curve_type);
+
+int catpt_ipc_set_write_pos(struct catpt_dev *cdev, u8 stream_hw_id,
+ u32 pos, bool eob, bool ll);
+
+int catpt_ipc_mute_loopback(struct catpt_dev *cdev, u8 stream_hw_id, bool mute);
+
+/* NOTIFICATION messages */
+
+enum catpt_notify_reason {
+ CATPT_NOTIFY_POSITION_CHANGED = 0,
+ CATPT_NOTIFY_GLITCH_OCCURRED = 1,
+};
+
+union catpt_notify_msg {
+ u32 val;
+ struct {
+ u32 mailbox_address:29;
+ u32 fw_ready:1;
+ u32 done:1;
+ u32 busy:1;
+ };
+ struct {
+ u32 status:5;
+ u32 reserved:7;
+ u32 notify_reason:4;
+ u32 stream_hw_id:4;
+ u32 stream_msg_type:4;
+ u32 global_msg_type:5;
+ u32 hdr:3; /* fw_ready, done, busy */
+ };
+} __packed;
+
+#define FW_INFO_SIZE_MAX 100
+
+struct catpt_fw_ready {
+ u32 inbox_offset;
+ u32 outbox_offset;
+ u32 inbox_size;
+ u32 outbox_size;
+ u32 fw_info_size;
+ char fw_info[FW_INFO_SIZE_MAX];
+} __packed;
+
+struct catpt_notify_position {
+ u32 stream_position;
+ u32 fw_cycle_count;
+} __packed;
+
+enum catpt_glitch_type {
+ CATPT_GLITCH_UNDERRUN = 1,
+ CATPT_GLITCH_DECODER_ERROR = 2,
+ CATPT_GLITCH_DOUBLED_WRITE_POS = 3,
+};
+
+struct catpt_notify_glitch {
+ u32 type;
+ u64 presentation_pos;
+ u32 write_pos;
+} __packed;
+
+#endif
@@ -15,7 +15,6 @@
#define CATPT_SHIM_REGS_SIZE 4096
#define CATPT_DMA_REGS_SIZE 1024
#define CATPT_DMA_COUNT 2
-#define CATPT_SSP_COUNT 2
#define CATPT_SSP_REGS_SIZE 512
/* DSP Shim registers */
Implement IRQ handlers for immediate and delayed replies and notifications. Communication is synchronous and allows for serialization of maximum one message at a time. DSP may respond with ADSP_PENDING status for a request - known as delayed reply - and when situation occurs, framework keeps the lock and awaits upcoming response through IPCD channel which is handled in bottom-half. Immediate replies spawn no BH at all as their processing is very short. Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> --- sound/soc/intel/catpt/core.h | 44 ++++ sound/soc/intel/catpt/ipc.c | 246 ++++++++++++++++++ sound/soc/intel/catpt/messages.h | 401 ++++++++++++++++++++++++++++++ sound/soc/intel/catpt/registers.h | 1 - 4 files changed, 691 insertions(+), 1 deletion(-) create mode 100644 sound/soc/intel/catpt/ipc.c create mode 100644 sound/soc/intel/catpt/messages.h