1 files changed, 634 insertions, 0 deletions

diff --git a/sound/soc/qcom/qdsp6/q6adm.c b/sound/soc/qcom/qdsp6/q6adm.c
new file mode 100644
index 000000000..932c3ebfd
--- /dev/null
+++ b/sound/soc/qcom/qdsp6/q6adm.c
@@ -0,0 +1,634 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
+// Copyright (c) 2018, Linaro Limited
+
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/jiffies.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/kref.h>
+#include <linux/wait.h>
+#include <linux/soc/qcom/apr.h>
+#include <linux/platform_device.h>
+#include <sound/asound.h>
+#include "q6adm.h"
+#include "q6afe.h"
+#include "q6core.h"
+#include "q6dsp-errno.h"
+#include "q6dsp-common.h"
+
+#define ADM_CMD_DEVICE_OPEN_V5		0x00010326
+#define ADM_CMDRSP_DEVICE_OPEN_V5	0x00010329
+#define ADM_CMD_DEVICE_CLOSE_V5		0x00010327
+#define ADM_CMD_MATRIX_MAP_ROUTINGS_V5	0x00010325
+
+#define TIMEOUT_MS 1000
+#define RESET_COPP_ID 99
+#define INVALID_COPP_ID 0xFF
+/* Definition for a legacy device session. */
+#define ADM_LEGACY_DEVICE_SESSION	0
+#define ADM_MATRIX_ID_AUDIO_RX		0
+#define ADM_MATRIX_ID_AUDIO_TX		1
+
+struct q6copp {
+	int afe_port;
+	int copp_idx;
+	int id;
+	int topology;
+	int mode;
+	int rate;
+	int bit_width;
+	int channels;
+	int app_type;
+	int acdb_id;
+
+	struct aprv2_ibasic_rsp_result_t result;
+	struct kref refcount;
+	wait_queue_head_t wait;
+	struct list_head node;
+	struct q6adm *adm;
+};
+
+struct q6adm {
+	struct apr_device *apr;
+	struct device *dev;
+	struct q6core_svc_api_info ainfo;
+	unsigned long copp_bitmap[AFE_MAX_PORTS];
+	struct list_head copps_list;
+	spinlock_t copps_list_lock;
+	struct aprv2_ibasic_rsp_result_t result;
+	struct mutex lock;
+	wait_queue_head_t matrix_map_wait;
+};
+
+struct q6adm_cmd_device_open_v5 {
+	u16 flags;
+	u16 mode_of_operation;
+	u16 endpoint_id_1;
+	u16 endpoint_id_2;
+	u32 topology_id;
+	u16 dev_num_channel;
+	u16 bit_width;
+	u32 sample_rate;
+	u8 dev_channel_mapping[8];
+} __packed;
+
+struct q6adm_cmd_matrix_map_routings_v5 {
+	u32 matrix_id;
+	u32 num_sessions;
+} __packed;
+
+struct q6adm_session_map_node_v5 {
+	u16 session_id;
+	u16 num_copps;
+} __packed;
+
+static struct q6copp *q6adm_find_copp(struct q6adm *adm, int port_idx,
+				  int copp_idx)
+{
+	struct q6copp *c = NULL;
+	struct q6copp *ret = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adm->copps_list_lock, flags);
+	list_for_each_entry(c, &adm->copps_list, node) {
+		if ((port_idx == c->afe_port) && (copp_idx == c->copp_idx)) {
+			ret = c;
+			kref_get(&c->refcount);
+			break;
+		}
+	}
+
+	spin_unlock_irqrestore(&adm->copps_list_lock, flags);
+
+	return ret;
+
+}
+
+static void q6adm_free_copp(struct kref *ref)
+{
+	struct q6copp *c = container_of(ref, struct q6copp, refcount);
+	struct q6adm *adm = c->adm;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adm->copps_list_lock, flags);
+	clear_bit(c->copp_idx, &adm->copp_bitmap[c->afe_port]);
+	list_del(&c->node);
+	spin_unlock_irqrestore(&adm->copps_list_lock, flags);
+	kfree(c);
+}
+
+static int q6adm_callback(struct apr_device *adev, struct apr_resp_pkt *data)
+{
+	struct aprv2_ibasic_rsp_result_t *result = data->payload;
+	int port_idx, copp_idx;
+	struct apr_hdr *hdr = &data->hdr;
+	struct q6copp *copp;
+	struct q6adm *adm = dev_get_drvdata(&adev->dev);
+
+	if (!data->payload_size)
+		return 0;
+
+	copp_idx = (hdr->token) & 0XFF;
+	port_idx = ((hdr->token) >> 16) & 0xFF;
+	if (port_idx < 0 || port_idx >= AFE_MAX_PORTS) {
+		dev_err(&adev->dev, "Invalid port idx %d token %d\n",
+		       port_idx, hdr->token);
+		return 0;
+	}
+	if (copp_idx < 0 || copp_idx >= MAX_COPPS_PER_PORT) {
+		dev_err(&adev->dev, "Invalid copp idx %d token %d\n",
+			copp_idx, hdr->token);
+		return 0;
+	}
+
+	switch (hdr->opcode) {
+	case APR_BASIC_RSP_RESULT: {
+		if (result->status != 0) {
+			dev_err(&adev->dev, "cmd = 0x%x return error = 0x%x\n",
+				result->opcode, result->status);
+		}
+		switch (result->opcode) {
+		case ADM_CMD_DEVICE_OPEN_V5:
+		case ADM_CMD_DEVICE_CLOSE_V5:
+			copp = q6adm_find_copp(adm, port_idx, copp_idx);
+			if (!copp)
+				return 0;
+
+			copp->result = *result;
+			wake_up(&copp->wait);
+			kref_put(&copp->refcount, q6adm_free_copp);
+			break;
+		case ADM_CMD_MATRIX_MAP_ROUTINGS_V5:
+			adm->result = *result;
+			wake_up(&adm->matrix_map_wait);
+			break;
+
+		default:
+			dev_err(&adev->dev, "Unknown Cmd: 0x%x\n",
+				result->opcode);
+			break;
+		}
+		return 0;
+	}
+	case ADM_CMDRSP_DEVICE_OPEN_V5: {
+		struct adm_cmd_rsp_device_open_v5 {
+			u32 status;
+			u16 copp_id;
+			u16 reserved;
+		} __packed * open = data->payload;
+
+		copp = q6adm_find_copp(adm, port_idx, copp_idx);
+		if (!copp)
+			return 0;
+
+		if (open->copp_id == INVALID_COPP_ID) {
+			dev_err(&adev->dev, "Invalid coppid rxed %d\n",
+				open->copp_id);
+			copp->result.status = ADSP_EBADPARAM;
+			wake_up(&copp->wait);
+			kref_put(&copp->refcount, q6adm_free_copp);
+			break;
+		}
+		copp->result.opcode = hdr->opcode;
+		copp->id = open->copp_id;
+		wake_up(&copp->wait);
+		kref_put(&copp->refcount, q6adm_free_copp);
+	}
+	break;
+	default:
+		dev_err(&adev->dev, "Unknown cmd:0x%x\n",
+		       hdr->opcode);
+		break;
+	}
+
+	return 0;
+}
+
+static struct q6copp *q6adm_alloc_copp(struct q6adm *adm, int port_idx)
+{
+	struct q6copp *c;
+	int idx;
+
+	idx = find_first_zero_bit(&adm->copp_bitmap[port_idx],
+				  MAX_COPPS_PER_PORT);
+
+	if (idx > MAX_COPPS_PER_PORT)
+		return ERR_PTR(-EBUSY);
+
+	c = kzalloc(sizeof(*c), GFP_ATOMIC);
+	if (!c)
+		return ERR_PTR(-ENOMEM);
+
+	set_bit(idx, &adm->copp_bitmap[port_idx]);
+	c->copp_idx = idx;
+	c->afe_port = port_idx;
+	c->adm = adm;
+
+	init_waitqueue_head(&c->wait);
+
+	return c;
+}
+
+static int q6adm_apr_send_copp_pkt(struct q6adm *adm, struct q6copp *copp,
+				   struct apr_pkt *pkt, uint32_t rsp_opcode)
+{
+	struct device *dev = adm->dev;
+	uint32_t opcode = pkt->hdr.opcode;
+	int ret;
+
+	mutex_lock(&adm->lock);
+	copp->result.opcode = 0;
+	copp->result.status = 0;
+	ret = apr_send_pkt(adm->apr, pkt);
+	if (ret < 0) {
+		dev_err(dev, "Failed to send APR packet\n");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* Wait for the callback with copp id */
+	if (rsp_opcode)
+		ret = wait_event_timeout(copp->wait,
+					 (copp->result.opcode == opcode) ||
+					 (copp->result.opcode == rsp_opcode),
+					 msecs_to_jiffies(TIMEOUT_MS));
+	else
+		ret = wait_event_timeout(copp->wait,
+					 (copp->result.opcode == opcode),
+					 msecs_to_jiffies(TIMEOUT_MS));
+
+	if (!ret) {
+		dev_err(dev, "ADM copp cmd timedout\n");
+		ret = -ETIMEDOUT;
+	} else if (copp->result.status > 0) {
+		dev_err(dev, "DSP returned error[%d]\n",
+			copp->result.status);
+		ret = -EINVAL;
+	}
+
+err:
+	mutex_unlock(&adm->lock);
+	return ret;
+}
+
+static int q6adm_device_close(struct q6adm *adm, struct q6copp *copp,
+			      int port_id, int copp_idx)
+{
+	struct apr_pkt close;
+
+	close.hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
+					APR_HDR_LEN(APR_HDR_SIZE),
+					APR_PKT_VER);
+	close.hdr.pkt_size = sizeof(close);
+	close.hdr.src_port = port_id;
+	close.hdr.dest_port = copp->id;
+	close.hdr.token = port_id << 16 | copp_idx;
+	close.hdr.opcode = ADM_CMD_DEVICE_CLOSE_V5;
+
+	return q6adm_apr_send_copp_pkt(adm, copp, &close, 0);
+}
+
+static struct q6copp *q6adm_find_matching_copp(struct q6adm *adm,
+					       int port_id, int topology,
+					       int mode, int rate,
+					       int channel_mode, int bit_width,
+					       int app_type)
+{
+	struct q6copp *c = NULL;
+	struct q6copp *ret = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adm->copps_list_lock, flags);
+
+	list_for_each_entry(c, &adm->copps_list, node) {
+		if ((port_id == c->afe_port) && (topology == c->topology) &&
+		    (mode == c->mode) && (rate == c->rate) &&
+		    (bit_width == c->bit_width) && (app_type == c->app_type)) {
+			ret = c;
+			kref_get(&c->refcount);
+		}
+	}
+	spin_unlock_irqrestore(&adm->copps_list_lock, flags);
+
+	return ret;
+}
+
+static int q6adm_device_open(struct q6adm *adm, struct q6copp *copp,
+			     int port_id, int path, int topology,
+			     int channel_mode, int bit_width, int rate)
+{
+	struct q6adm_cmd_device_open_v5 *open;
+	int afe_port = q6afe_get_port_id(port_id);
+	struct apr_pkt *pkt;
+	void *p;
+	int ret, pkt_size;
+
+	pkt_size = APR_HDR_SIZE + sizeof(*open);
+	p = kzalloc(pkt_size, GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	pkt = p;
+	open = p + APR_HDR_SIZE;
+	pkt->hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
+					   APR_HDR_LEN(APR_HDR_SIZE),
+					   APR_PKT_VER);
+	pkt->hdr.pkt_size = pkt_size;
+	pkt->hdr.src_port = afe_port;
+	pkt->hdr.dest_port = afe_port;
+	pkt->hdr.token = port_id << 16 | copp->copp_idx;
+	pkt->hdr.opcode = ADM_CMD_DEVICE_OPEN_V5;
+	open->flags = ADM_LEGACY_DEVICE_SESSION;
+	open->mode_of_operation = path;
+	open->endpoint_id_1 = afe_port;
+	open->topology_id = topology;
+	open->dev_num_channel = channel_mode & 0x00FF;
+	open->bit_width = bit_width;
+	open->sample_rate = rate;
+
+	ret = q6dsp_map_channels(&open->dev_channel_mapping[0],
+				 channel_mode);
+	if (ret)
+		goto err;
+
+	ret = q6adm_apr_send_copp_pkt(adm, copp, pkt,
+				      ADM_CMDRSP_DEVICE_OPEN_V5);
+
+err:
+	kfree(pkt);
+	return ret;
+}
+
+/**
+ * q6adm_open() - open adm and grab a free copp
+ *
+ * @dev: Pointer to adm child device.
+ * @port_id: port id
+ * @path: playback or capture path.
+ * @rate: rate at which copp is required.
+ * @channel_mode: channel mode
+ * @topology: adm topology id
+ * @perf_mode: performace mode.
+ * @bit_width: audio sample bit width
+ * @app_type: Application type.
+ * @acdb_id: ACDB id
+ *
+ * Return: Will be an negative on error or a valid copp pointer on success.
+ */
+struct q6copp *q6adm_open(struct device *dev, int port_id, int path, int rate,
+	       int channel_mode, int topology, int perf_mode,
+	       uint16_t bit_width, int app_type, int acdb_id)
+{
+	struct q6adm *adm = dev_get_drvdata(dev->parent);
+	struct q6copp *copp;
+	unsigned long flags;
+	int ret = 0;
+
+	if (port_id < 0) {
+		dev_err(dev, "Invalid port_id 0x%x\n", port_id);
+		return ERR_PTR(-EINVAL);
+	}
+
+	copp = q6adm_find_matching_copp(adm, port_id, topology, perf_mode,
+				      rate, channel_mode, bit_width, app_type);
+	if (copp) {
+		dev_err(dev, "Found Matching Copp 0x%x\n", copp->copp_idx);
+		return copp;
+	}
+
+	spin_lock_irqsave(&adm->copps_list_lock, flags);
+	copp = q6adm_alloc_copp(adm, port_id);
+	if (IS_ERR_OR_NULL(copp)) {
+		spin_unlock_irqrestore(&adm->copps_list_lock, flags);
+		return ERR_CAST(copp);
+	}
+
+	list_add_tail(&copp->node, &adm->copps_list);
+	spin_unlock_irqrestore(&adm->copps_list_lock, flags);
+
+	kref_init(&copp->refcount);
+	copp->topology = topology;
+	copp->mode = perf_mode;
+	copp->rate = rate;
+	copp->channels = channel_mode;
+	copp->bit_width = bit_width;
+	copp->app_type = app_type;
+
+
+	ret = q6adm_device_open(adm, copp, port_id, path, topology,
+				channel_mode, bit_width, rate);
+	if (ret < 0) {
+		kref_put(&copp->refcount, q6adm_free_copp);
+		return ERR_PTR(ret);
+	}
+
+	return copp;
+}
+EXPORT_SYMBOL_GPL(q6adm_open);
+
+/**
+ * q6adm_get_copp_id() - get copp index
+ *
+ * @copp: Pointer to valid copp
+ *
+ * Return: Will be an negative on error or a valid copp index on success.
+ **/
+int q6adm_get_copp_id(struct q6copp *copp)
+{
+	if (!copp)
+		return -EINVAL;
+
+	return copp->copp_idx;
+}
+EXPORT_SYMBOL_GPL(q6adm_get_copp_id);
+
+/**
+ * q6adm_matrix_map() - Map asm streams and afe ports using payload
+ *
+ * @dev: Pointer to adm child device.
+ * @path: playback or capture path.
+ * @payload_map: map between session id and afe ports.
+ * @perf_mode: Performace mode.
+ *
+ * Return: Will be an negative on error or a zero on success.
+ */
+int q6adm_matrix_map(struct device *dev, int path,
+		     struct route_payload payload_map, int perf_mode)
+{
+	struct q6adm *adm = dev_get_drvdata(dev->parent);
+	struct q6adm_cmd_matrix_map_routings_v5 *route;
+	struct q6adm_session_map_node_v5 *node;
+	struct apr_pkt *pkt;
+	uint16_t *copps_list;
+	int pkt_size, ret, i, copp_idx;
+	void *matrix_map = NULL;
+	struct q6copp *copp;
+
+	/* Assumes port_ids have already been validated during adm_open */
+	pkt_size = (APR_HDR_SIZE + sizeof(*route) +  sizeof(*node) +
+		    (sizeof(uint32_t) * payload_map.num_copps));
+
+	matrix_map = kzalloc(pkt_size, GFP_KERNEL);
+	if (!matrix_map)
+		return -ENOMEM;
+
+	pkt = matrix_map;
+	route = matrix_map + APR_HDR_SIZE;
+	node = matrix_map + APR_HDR_SIZE + sizeof(*route);
+	copps_list = matrix_map + APR_HDR_SIZE + sizeof(*route) + sizeof(*node);
+
+	pkt->hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD,
+					   APR_HDR_LEN(APR_HDR_SIZE),
+					   APR_PKT_VER);
+	pkt->hdr.pkt_size = pkt_size;
+	pkt->hdr.token = 0;
+	pkt->hdr.opcode = ADM_CMD_MATRIX_MAP_ROUTINGS_V5;
+	route->num_sessions = 1;
+
+	switch (path) {
+	case ADM_PATH_PLAYBACK:
+		route->matrix_id = ADM_MATRIX_ID_AUDIO_RX;
+		break;
+	case ADM_PATH_LIVE_REC:
+		route->matrix_id = ADM_MATRIX_ID_AUDIO_TX;
+		break;
+	default:
+		dev_err(dev, "Wrong path set[%d]\n", path);
+		break;
+	}
+
+	node->session_id = payload_map.session_id;
+	node->num_copps = payload_map.num_copps;
+
+	for (i = 0; i < payload_map.num_copps; i++) {
+		int port_idx = payload_map.port_id[i];
+
+		if (port_idx < 0) {
+			dev_err(dev, "Invalid port_id 0x%x\n",
+				payload_map.port_id[i]);
+			kfree(pkt);
+			return -EINVAL;
+		}
+		copp_idx = payload_map.copp_idx[i];
+
+		copp = q6adm_find_copp(adm, port_idx, copp_idx);
+		if (!copp) {
+			kfree(pkt);
+			return -EINVAL;
+		}
+
+		copps_list[i] = copp->id;
+		kref_put(&copp->refcount, q6adm_free_copp);
+	}
+
+	mutex_lock(&adm->lock);
+	adm->result.status = 0;
+	adm->result.opcode = 0;
+
+	ret = apr_send_pkt(adm->apr, pkt);
+	if (ret < 0) {
+		dev_err(dev, "routing for stream %d failed ret %d\n",
+		       payload_map.session_id, ret);
+		goto fail_cmd;
+	}
+	ret = wait_event_timeout(adm->matrix_map_wait,
+				 adm->result.opcode == pkt->hdr.opcode,
+				 msecs_to_jiffies(TIMEOUT_MS));
+	if (!ret) {
+		dev_err(dev, "routing for stream %d failed\n",
+		       payload_map.session_id);
+		ret = -ETIMEDOUT;
+		goto fail_cmd;
+	} else if (adm->result.status > 0) {
+		dev_err(dev, "DSP returned error[%d]\n",
+			adm->result.status);
+		ret = -EINVAL;
+		goto fail_cmd;
+	}
+
+fail_cmd:
+	mutex_unlock(&adm->lock);
+	kfree(pkt);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(q6adm_matrix_map);
+
+/**
+ * q6adm_close() - Close adm copp
+ *
+ * @dev: Pointer to adm child device.
+ * @copp: pointer to previously opened copp
+ *
+ * Return: Will be an negative on error or a zero on success.
+ */
+int q6adm_close(struct device *dev, struct q6copp *copp)
+{
+	struct q6adm *adm = dev_get_drvdata(dev->parent);
+	int ret = 0;
+
+	ret = q6adm_device_close(adm, copp, copp->afe_port, copp->copp_idx);
+	if (ret < 0) {
+		dev_err(adm->dev, "Failed to close copp %d\n", ret);
+		return ret;
+	}
+
+	kref_put(&copp->refcount, q6adm_free_copp);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(q6adm_close);
+
+static int q6adm_probe(struct apr_device *adev)
+{
+	struct device *dev = &adev->dev;
+	struct q6adm *adm;
+
+	adm = devm_kzalloc(&adev->dev, sizeof(*adm), GFP_KERNEL);
+	if (!adm)
+		return -ENOMEM;
+
+	adm->apr = adev;
+	dev_set_drvdata(&adev->dev, adm);
+	adm->dev = dev;
+	q6core_get_svc_api_info(adev->svc_id, &adm->ainfo);
+	mutex_init(&adm->lock);
+	init_waitqueue_head(&adm->matrix_map_wait);
+
+	INIT_LIST_HEAD(&adm->copps_list);
+	spin_lock_init(&adm->copps_list_lock);
+
+	return of_platform_populate(dev->of_node, NULL, NULL, dev);
+}
+
+static int q6adm_remove(struct apr_device *adev)
+{
+	of_platform_depopulate(&adev->dev);
+
+	return 0;
+}
+
+static const struct of_device_id q6adm_device_id[]  = {
+	{ .compatible = "qcom,q6adm" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, q6adm_device_id);
+
+static struct apr_driver qcom_q6adm_driver = {
+	.probe = q6adm_probe,
+	.remove = q6adm_remove,
+	.callback = q6adm_callback,
+	.driver = {
+		.name = "qcom-q6adm",
+		.of_match_table = of_match_ptr(q6adm_device_id),
+	},
+};
+
+module_apr_driver(qcom_q6adm_driver);
+MODULE_DESCRIPTION("Q6 Audio Device Manager");
+MODULE_LICENSE("GPL v2");