diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/qcom/qdsp6/q6adm.c | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/sound/soc/qcom/qdsp6/q6adm.c b/sound/soc/qcom/qdsp6/q6adm.c new file mode 100644 index 0000000000..1530e98df1 --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6adm.c @@ -0,0 +1,626 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2011-2017, The Linux Foundation. All rights reserved. +// Copyright (c) 2018, Linaro Limited + +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/kref.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/soc/qcom/apr.h> +#include <linux/wait.h> +#include <sound/asound.h> +#include "q6adm.h" +#include "q6afe.h" +#include "q6core.h" +#include "q6dsp-common.h" +#include "q6dsp-errno.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; + 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; + 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 %d\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(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; + 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 %d\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(dev, sizeof(*adm), GFP_KERNEL); + if (!adm) + return -ENOMEM; + + adm->apr = adev; + dev_set_drvdata(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 devm_of_platform_populate(dev); +} + +#ifdef CONFIG_OF +static const struct of_device_id q6adm_device_id[] = { + { .compatible = "qcom,q6adm" }, + {}, +}; +MODULE_DEVICE_TABLE(of, q6adm_device_id); +#endif + +static struct apr_driver qcom_q6adm_driver = { + .probe = q6adm_probe, + .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"); |