From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This patch adds support to core apr service, which is used to query status of other static and dynamic services on the dsp.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Reviewed-and-tested-by: Rohit kumar rohitkr@codeaurora.org --- sound/soc/qcom/Kconfig | 4 + sound/soc/qcom/qdsp6/Makefile | 1 + sound/soc/qcom/qdsp6/q6core.c | 380 ++++++++++++++++++++++++++++++++++++++++++ sound/soc/qcom/qdsp6/q6core.h | 15 ++ 4 files changed, 400 insertions(+) create mode 100644 sound/soc/qcom/qdsp6/q6core.c create mode 100644 sound/soc/qcom/qdsp6/q6core.h
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index 8247ade16dbe..dd90d8bbf77e 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -47,10 +47,14 @@ config SND_SOC_APQ8016_SBC config SND_SOC_QDSP6_COMMON tristate
+config SND_SOC_QDSP6_CORE + tristate + config SND_SOC_QDSP6 tristate "SoC ALSA audio driver for QDSP6" depends on QCOM_APR && HAS_DMA select SND_SOC_QDSP6_COMMON + select SND_SOC_QDSP6_CORE help To add support for MSM QDSP6 Soc Audio. This will enable sound soc platform specific diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile index accebdb49306..03b8e89c9731 100644 --- a/sound/soc/qcom/qdsp6/Makefile +++ b/sound/soc/qcom/qdsp6/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_SND_SOC_QDSP6_COMMON) += q6dsp-common.o +obj-$(CONFIG_SND_SOC_QDSP6_CORE) += q6core.o diff --git a/sound/soc/qcom/qdsp6/q6core.c b/sound/soc/qcom/qdsp6/q6core.c new file mode 100644 index 000000000000..b2d6352fc0b7 --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6core.c @@ -0,0 +1,380 @@ +// 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/module.h> +#include <linux/sched.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/jiffies.h> +#include <linux/wait.h> +#include <linux/soc/qcom/apr.h> +#include "q6core.h" +#include "q6dsp-errno.h" + +#define ADSP_STATE_READY_TIMEOUT_MS 3000 +#define Q6_READY_TIMEOUT_MS 100 +#define AVCS_CMD_ADSP_EVENT_GET_STATE 0x0001290C +#define AVCS_CMDRSP_ADSP_EVENT_GET_STATE 0x0001290D +#define AVCS_GET_VERSIONS 0x00012905 +#define AVCS_GET_VERSIONS_RSP 0x00012906 +#define AVCS_CMD_GET_FWK_VERSION 0x001292c +#define AVCS_CMDRSP_GET_FWK_VERSION 0x001292d + +struct avcs_svc_info { + uint32_t service_id; + uint32_t version; +} __packed; + +struct avcs_cmdrsp_get_version { + uint32_t build_id; + uint32_t num_services; + struct avcs_svc_info svc_api_info[]; +} __packed; + +/* for ADSP2.8 and above */ +struct avcs_svc_api_info { + uint32_t service_id; + uint32_t api_version; + uint32_t api_branch_version; +} __packed; + +struct avcs_cmdrsp_get_fwk_version { + uint32_t build_major_version; + uint32_t build_minor_version; + uint32_t build_branch_version; + uint32_t build_subbranch_version; + uint32_t num_services; + struct avcs_svc_api_info svc_api_info[]; +} __packed; + +struct q6core { + struct apr_device *adev; + wait_queue_head_t wait; + uint32_t avcs_state; + struct mutex lock; + bool resp_received; + uint32_t num_services; + struct avcs_cmdrsp_get_fwk_version *fwk_version; + struct avcs_cmdrsp_get_version *svc_version; + bool fwk_version_supported; + bool get_state_supported; + bool get_version_supported; + bool is_version_requested; +}; + +static struct q6core *g_core; + +static int q6core_callback(struct apr_device *adev, + struct apr_client_message *data) +{ + struct q6core *core = dev_get_drvdata(&adev->dev); + struct aprv2_ibasic_rsp_result_t *result; + + result = data->payload; + switch (data->opcode) { + case APR_BASIC_RSP_RESULT:{ + result = data->payload; + switch (result->opcode) { + case AVCS_GET_VERSIONS: + if (result->status == ADSP_EUNSUPPORTED) + core->get_version_supported = false; + core->resp_received = true; + break; + case AVCS_CMD_GET_FWK_VERSION: + if (result->status == ADSP_EUNSUPPORTED) + core->fwk_version_supported = false; + core->resp_received = true; + break; + case AVCS_CMD_ADSP_EVENT_GET_STATE: + if (result->status == ADSP_EUNSUPPORTED) + core->get_state_supported = false; + core->resp_received = true; + break; + } + break; + } + case AVCS_CMDRSP_GET_FWK_VERSION: { + struct avcs_cmdrsp_get_fwk_version *fwk; + int bytes; + + fwk = data->payload; + core->fwk_version_supported = true; + bytes = sizeof(*fwk) + fwk->num_services * + sizeof(fwk->svc_api_info[0]); + + core->fwk_version = kzalloc(bytes, GFP_ATOMIC); + if (!core->fwk_version) + return -ENOMEM; + + memcpy(core->fwk_version, data->payload, bytes); + + core->resp_received = true; + + break; + } + case AVCS_GET_VERSIONS_RSP: { + struct avcs_cmdrsp_get_version *v; + int len; + + v = data->payload; + core->get_version_supported = true; + + len = sizeof(*v) + v->num_services * sizeof(v->svc_api_info[0]); + + core->svc_version = kzalloc(len, GFP_ATOMIC); + if (!core->svc_version) + return -ENOMEM; + + memcpy(core->svc_version, data->payload, len); + + core->resp_received = true; + + break; + } + case AVCS_CMDRSP_ADSP_EVENT_GET_STATE: + core->get_state_supported = true; + core->avcs_state = result->opcode; + + core->resp_received = true; + break; + default: + dev_err(&adev->dev, "Message id from adsp core svc: 0x%x\n", + data->opcode); + break; + } + + if (core->resp_received) + wake_up(&core->wait); + + return 0; +} + +static int q6core_get_fwk_versions(struct q6core *core) +{ + struct apr_device *adev = core->adev; + struct apr_hdr hdr = {0}; + int rc; + + hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD, + APR_HDR_LEN(APR_HDR_SIZE), APR_PKT_VER); + hdr.pkt_size = APR_HDR_SIZE; + hdr.opcode = AVCS_CMD_GET_FWK_VERSION; + + rc = apr_send_pkt(adev, &hdr); + if (rc < 0) + return rc; + + rc = wait_event_timeout(core->wait, (core->resp_received), + msecs_to_jiffies(Q6_READY_TIMEOUT_MS)); + if (rc > 0 && core->resp_received) { + core->resp_received = false; + + if (!core->fwk_version_supported) + return -ENOTSUPP; + else + return 0; + } + + + return rc; +} + +static int q6core_get_svc_versions(struct q6core *core) +{ + struct apr_device *adev = core->adev; + struct apr_hdr hdr = {0}; + int rc; + + hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD, + APR_HDR_LEN(APR_HDR_SIZE), APR_PKT_VER); + hdr.pkt_size = APR_HDR_SIZE; + hdr.opcode = AVCS_GET_VERSIONS; + + rc = apr_send_pkt(adev, &hdr); + if (rc < 0) + return rc; + + rc = wait_event_timeout(core->wait, (core->resp_received), + msecs_to_jiffies(Q6_READY_TIMEOUT_MS)); + if (rc > 0 && core->resp_received) { + core->resp_received = false; + return 0; + } + + return rc; +} + +static bool __q6core_is_adsp_ready(struct q6core *core) +{ + struct apr_device *adev = core->adev; + struct apr_hdr hdr = {0}; + int rc; + + core->get_state_supported = false; + + hdr.hdr_field = APR_HDR_FIELD(APR_MSG_TYPE_SEQ_CMD, + APR_HDR_LEN(APR_HDR_SIZE), APR_PKT_VER); + hdr.pkt_size = APR_HDR_SIZE; + hdr.opcode = AVCS_CMD_ADSP_EVENT_GET_STATE; + + rc = apr_send_pkt(adev, &hdr); + if (rc < 0) + return false; + + rc = wait_event_timeout(core->wait, (core->resp_received), + msecs_to_jiffies(Q6_READY_TIMEOUT_MS)); + if (rc > 0 && core->resp_received) { + core->resp_received = false; + + if (core->avcs_state == 0x1) + return true; + } + + /* assume that the adsp is up if we not support this command */ + if (!core->get_state_supported) + return true; + + return false; +} + +/** + * q6core_get_svc_api_info() - Get version number of a service. + * + * @svc_id: service id of the service. + * @info: Valid struct pointer to fill svc api information. + * + * Return: zero on success and error code on failure or unsupported + */ +int q6core_get_svc_api_info(int svc_id, struct q6core_svc_api_info *ainfo) +{ + int i; + int ret = -ENOTSUPP; + + if (!g_core || !ainfo) + return 0; + + mutex_lock(&g_core->lock); + if (!g_core->is_version_requested) { + if (q6core_get_fwk_versions(g_core) == -ENOTSUPP) + q6core_get_svc_versions(g_core); + g_core->is_version_requested = true; + } + + if (g_core->fwk_version_supported) { + for (i = 0; i < g_core->fwk_version->num_services; i++) { + struct avcs_svc_api_info *info; + + info = &g_core->fwk_version->svc_api_info[i]; + if (svc_id != info->service_id) + continue; + + ainfo->api_version = info->api_version; + ainfo->api_branch_version = info->api_branch_version; + ret = 0; + break; + } + } else if (g_core->get_version_supported) { + for (i = 0; i < g_core->svc_version->num_services; i++) { + struct avcs_svc_info *info; + + info = &g_core->svc_version->svc_api_info[i]; + if (svc_id != info->service_id) + continue; + + ainfo->api_version = info->version; + ainfo->api_branch_version = 0; + ret = 0; + break; + } + } + + mutex_unlock(&g_core->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(q6core_get_svc_api_info); + +/** + * q6core_is_adsp_ready() - Get status of adsp + * + * Return: Will be an true if adsp is ready and false if not. + */ +bool q6core_is_adsp_ready(void) +{ + unsigned long timeout; + bool ret = false; + + if (!g_core) + return false; + + mutex_lock(&g_core->lock); + timeout = jiffies + msecs_to_jiffies(ADSP_STATE_READY_TIMEOUT_MS); + for (;;) { + if (__q6core_is_adsp_ready(g_core)) { + ret = true; + break; + } + + if (!time_after(timeout, jiffies)) { + ret = false; + break; + } + } + + mutex_unlock(&g_core->lock); + return ret; +} +EXPORT_SYMBOL_GPL(q6core_is_adsp_ready); + +static int q6core_probe(struct apr_device *adev) +{ + g_core = kzalloc(sizeof(*g_core), GFP_KERNEL); + if (!g_core) + return -ENOMEM; + + dev_set_drvdata(&adev->dev, g_core); + + mutex_init(&g_core->lock); + g_core->adev = adev; + init_waitqueue_head(&g_core->wait); + return 0; +} + +static int q6core_exit(struct apr_device *adev) +{ + struct q6core *core = dev_get_drvdata(&adev->dev); + + if (core->fwk_version_supported) + kfree(core->fwk_version); + if (core->get_version_supported) + kfree(core->svc_version); + + kfree(core); + g_core = NULL; + + return 0; +} + +static const struct of_device_id q6core_device_id[] = { + { .compatible = "qcom,q6core" }, + {}, +}; +MODULE_DEVICE_TABLE(of, q6core_device_id); + +static struct apr_driver qcom_q6core_driver = { + .probe = q6core_probe, + .remove = q6core_exit, + .callback = q6core_callback, + .driver = { + .name = "qcom-q6core", + .of_match_table = of_match_ptr(q6core_device_id), + }, +}; + +module_apr_driver(qcom_q6core_driver); +MODULE_DESCRIPTION("q6 core"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/qcom/qdsp6/q6core.h b/sound/soc/qcom/qdsp6/q6core.h new file mode 100644 index 000000000000..4105b1d730be --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6core.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __Q6CORE_H__ +#define __Q6CORE_H__ + +struct q6core_svc_api_info { + uint32_t service_id; + uint32_t api_version; + uint32_t api_branch_version; +}; + +bool q6core_is_adsp_ready(void); +int q6core_get_svc_api_info(int svc_id, struct q6core_svc_api_info *ainfo); + +#endif /* __Q6CORE_H__ */