Loading Documentation/devicetree/bindings/qdsp/msm-cdsp-loader.txt 0 → 100644 +16 −0 Original line number Diff line number Diff line Qualcomm Technologies, Inc. CDSP Loader Driver msm-cdsp-loader driver implements the mechanism that allows to load CDSP firmware images. Required properties: - compatible: This must be "qcom,msm-cdsp-loader". - qcom,proc-img-to-load: CDSP firmware name, must be "cdsp". Example: The following for sdm660. qcom,msm-cdsp-loader { compatible = "qcom,cdsp-loader"; qcom,proc-img-to-load = "cdsp"; }; drivers/soc/qcom/Kconfig +9 −0 Original line number Diff line number Diff line Loading @@ -525,6 +525,15 @@ config MSM_ADSP_LOADER for the platforms that use APRv2. Say M if you want to enable this module. config MSM_CDSP_LOADER tristate "CDSP loader support" depends on MSM_GLINK help Enable CDSP image loader. The CDSP loader brings CDSP out of reset for platforms that have compute DSP. Say M if you want to enable this module. config MSM_AVTIMER tristate "Avtimer Driver" depends on MSM_QDSP6_APRV2_GLINK || MSM_QDSP6_APRV3_GLINK Loading drivers/soc/qcom/qdsp6v2/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -7,3 +7,4 @@ obj-$(CONFIG_MSM_ADSP_LOADER) += adsp-loader.o obj-$(CONFIG_MSM_QDSP6_SSR) += audio_ssr.o obj-$(CONFIG_MSM_QDSP6_PDR) += audio_pdr.o obj-$(CONFIG_MSM_QDSP6_NOTIFIER) += audio_notifier.o obj-$(CONFIG_MSM_CDSP_LOADER) += cdsp-loader.o drivers/soc/qcom/qdsp6v2/cdsp-loader.c 0 → 100644 +271 −0 Original line number Diff line number Diff line /* * Copyright (c) 2012-2014, 2017, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only 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/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/err.h> #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/of_device.h> #include <linux/sysfs.h> #include <soc/qcom/subsystem_restart.h> #define BOOT_CMD 1 #define IMAGE_UNLOAD_CMD 0 #define CDSP_SUBSYS_DOWN 0 #define CDSP_SUBSYS_LOADED 1 static ssize_t cdsp_boot_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count); struct cdsp_loader_private { void *pil_h; struct kobject *boot_cdsp_obj; struct attribute_group *attr_group; }; static struct kobj_attribute cdsp_boot_attribute = __ATTR(boot, 0220, NULL, cdsp_boot_store); static struct attribute *attrs[] = { &cdsp_boot_attribute.attr, NULL, }; static u32 cdsp_state = CDSP_SUBSYS_DOWN; static struct platform_device *cdsp_private; static void cdsp_loader_unload(struct platform_device *pdev); static int cdsp_loader_do(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; int rc = 0; const char *img_name; if (!pdev) { dev_err(&pdev->dev, "%s: Platform device null\n", __func__); goto fail; } if (!pdev->dev.of_node) { dev_err(&pdev->dev, "%s: Device tree information missing\n", __func__); goto fail; } rc = of_property_read_string(pdev->dev.of_node, "qcom,proc-img-to-load", &img_name); if (rc) goto fail; if (!strcmp(img_name, "cdsp")) { /* cdsp_state always returns "0".*/ if (cdsp_state == CDSP_SUBSYS_DOWN) { priv = platform_get_drvdata(pdev); if (!priv) { dev_err(&pdev->dev, " %s: Private data get failed\n", __func__); goto fail; } priv->pil_h = subsystem_get("cdsp"); if (IS_ERR(priv->pil_h)) { dev_err(&pdev->dev, "%s: pil get failed,\n", __func__); goto fail; } /* Set the state of the CDSP.*/ cdsp_state = CDSP_SUBSYS_LOADED; } else if (cdsp_state == CDSP_SUBSYS_LOADED) { dev_dbg(&pdev->dev, "%s: CDSP state = %x\n", __func__, cdsp_state); } dev_dbg(&pdev->dev, "%s: CDSP image is loaded\n", __func__); return rc; } fail: dev_err(&pdev->dev, "%s: CDSP image loading failed\n", __func__); return rc; } static ssize_t cdsp_boot_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { int boot = 0, ret = 0; ret = sscanf(buf, "%du", &boot); if (ret != 1) pr_debug("%s: invalid arguments for cdsp_loader.\n", __func__); if (boot == BOOT_CMD) { pr_debug("%s: going to call cdsp_loader_do\n", __func__); cdsp_loader_do(cdsp_private); } else if (boot == IMAGE_UNLOAD_CMD) { pr_debug("%s: going to call adsp_unloader\n", __func__); cdsp_loader_unload(cdsp_private); } return count; } static void cdsp_loader_unload(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; priv = platform_get_drvdata(pdev); if (!priv) return; if (priv->pil_h) { dev_dbg(&pdev->dev, "%s: calling subsystem put\n", __func__); subsystem_put(priv->pil_h); priv->pil_h = NULL; } } static int cdsp_loader_init_sysfs(struct platform_device *pdev) { int ret = -EINVAL; struct cdsp_loader_private *priv = NULL; cdsp_private = NULL; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { ret = -ENOMEM; return ret; } platform_set_drvdata(pdev, priv); priv->pil_h = NULL; priv->boot_cdsp_obj = NULL; priv->attr_group = devm_kzalloc(&pdev->dev, sizeof(*(priv->attr_group)), GFP_KERNEL); if (!priv->attr_group) { dev_err(&pdev->dev, "%s: malloc attr_group failed\n", __func__); ret = -ENOMEM; goto error_return; } priv->attr_group->attrs = attrs; priv->boot_cdsp_obj = kobject_create_and_add("boot_cdsp", kernel_kobj); if (!priv->boot_cdsp_obj) { dev_err(&pdev->dev, "%s: sysfs create and add failed\n", __func__); ret = -ENOMEM; goto error_return; } ret = sysfs_create_group(priv->boot_cdsp_obj, priv->attr_group); if (ret) { dev_err(&pdev->dev, "%s: sysfs create group failed %d\n", __func__, ret); goto error_return; } cdsp_private = pdev; return 0; error_return: if (priv->boot_cdsp_obj) { kobject_del(priv->boot_cdsp_obj); priv->boot_cdsp_obj = NULL; } return ret; } static int cdsp_loader_remove(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; priv = platform_get_drvdata(pdev); if (!priv) return 0; if (priv->pil_h) { subsystem_put(priv->pil_h); priv->pil_h = NULL; } if (priv->boot_cdsp_obj) { sysfs_remove_group(priv->boot_cdsp_obj, priv->attr_group); kobject_del(priv->boot_cdsp_obj); priv->boot_cdsp_obj = NULL; } return 0; } static int cdsp_loader_probe(struct platform_device *pdev) { int ret = cdsp_loader_init_sysfs(pdev); if (ret != 0) { dev_err(&pdev->dev, "%s: Error in initing sysfs\n", __func__); return ret; } return 0; } static const struct of_device_id cdsp_loader_dt_match[] = { { .compatible = "qcom,cdsp-loader" }, { } }; MODULE_DEVICE_TABLE(of, cdsp_loader_dt_match); static struct platform_driver cdsp_loader_driver = { .driver = { .name = "cdsp-loader", .owner = THIS_MODULE, .of_match_table = cdsp_loader_dt_match, }, .probe = cdsp_loader_probe, .remove = cdsp_loader_remove, }; static int __init cdsp_loader_init(void) { return platform_driver_register(&cdsp_loader_driver); } module_init(cdsp_loader_init); static void __exit cdsp_loader_exit(void) { platform_driver_unregister(&cdsp_loader_driver); } module_exit(cdsp_loader_exit); MODULE_DESCRIPTION("CDSP Loader module"); MODULE_LICENSE("GPL v2"); Loading
Documentation/devicetree/bindings/qdsp/msm-cdsp-loader.txt 0 → 100644 +16 −0 Original line number Diff line number Diff line Qualcomm Technologies, Inc. CDSP Loader Driver msm-cdsp-loader driver implements the mechanism that allows to load CDSP firmware images. Required properties: - compatible: This must be "qcom,msm-cdsp-loader". - qcom,proc-img-to-load: CDSP firmware name, must be "cdsp". Example: The following for sdm660. qcom,msm-cdsp-loader { compatible = "qcom,cdsp-loader"; qcom,proc-img-to-load = "cdsp"; };
drivers/soc/qcom/Kconfig +9 −0 Original line number Diff line number Diff line Loading @@ -525,6 +525,15 @@ config MSM_ADSP_LOADER for the platforms that use APRv2. Say M if you want to enable this module. config MSM_CDSP_LOADER tristate "CDSP loader support" depends on MSM_GLINK help Enable CDSP image loader. The CDSP loader brings CDSP out of reset for platforms that have compute DSP. Say M if you want to enable this module. config MSM_AVTIMER tristate "Avtimer Driver" depends on MSM_QDSP6_APRV2_GLINK || MSM_QDSP6_APRV3_GLINK Loading
drivers/soc/qcom/qdsp6v2/Makefile +1 −0 Original line number Diff line number Diff line Loading @@ -7,3 +7,4 @@ obj-$(CONFIG_MSM_ADSP_LOADER) += adsp-loader.o obj-$(CONFIG_MSM_QDSP6_SSR) += audio_ssr.o obj-$(CONFIG_MSM_QDSP6_PDR) += audio_pdr.o obj-$(CONFIG_MSM_QDSP6_NOTIFIER) += audio_notifier.o obj-$(CONFIG_MSM_CDSP_LOADER) += cdsp-loader.o
drivers/soc/qcom/qdsp6v2/cdsp-loader.c 0 → 100644 +271 −0 Original line number Diff line number Diff line /* * Copyright (c) 2012-2014, 2017, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only 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/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/err.h> #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/of_device.h> #include <linux/sysfs.h> #include <soc/qcom/subsystem_restart.h> #define BOOT_CMD 1 #define IMAGE_UNLOAD_CMD 0 #define CDSP_SUBSYS_DOWN 0 #define CDSP_SUBSYS_LOADED 1 static ssize_t cdsp_boot_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count); struct cdsp_loader_private { void *pil_h; struct kobject *boot_cdsp_obj; struct attribute_group *attr_group; }; static struct kobj_attribute cdsp_boot_attribute = __ATTR(boot, 0220, NULL, cdsp_boot_store); static struct attribute *attrs[] = { &cdsp_boot_attribute.attr, NULL, }; static u32 cdsp_state = CDSP_SUBSYS_DOWN; static struct platform_device *cdsp_private; static void cdsp_loader_unload(struct platform_device *pdev); static int cdsp_loader_do(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; int rc = 0; const char *img_name; if (!pdev) { dev_err(&pdev->dev, "%s: Platform device null\n", __func__); goto fail; } if (!pdev->dev.of_node) { dev_err(&pdev->dev, "%s: Device tree information missing\n", __func__); goto fail; } rc = of_property_read_string(pdev->dev.of_node, "qcom,proc-img-to-load", &img_name); if (rc) goto fail; if (!strcmp(img_name, "cdsp")) { /* cdsp_state always returns "0".*/ if (cdsp_state == CDSP_SUBSYS_DOWN) { priv = platform_get_drvdata(pdev); if (!priv) { dev_err(&pdev->dev, " %s: Private data get failed\n", __func__); goto fail; } priv->pil_h = subsystem_get("cdsp"); if (IS_ERR(priv->pil_h)) { dev_err(&pdev->dev, "%s: pil get failed,\n", __func__); goto fail; } /* Set the state of the CDSP.*/ cdsp_state = CDSP_SUBSYS_LOADED; } else if (cdsp_state == CDSP_SUBSYS_LOADED) { dev_dbg(&pdev->dev, "%s: CDSP state = %x\n", __func__, cdsp_state); } dev_dbg(&pdev->dev, "%s: CDSP image is loaded\n", __func__); return rc; } fail: dev_err(&pdev->dev, "%s: CDSP image loading failed\n", __func__); return rc; } static ssize_t cdsp_boot_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { int boot = 0, ret = 0; ret = sscanf(buf, "%du", &boot); if (ret != 1) pr_debug("%s: invalid arguments for cdsp_loader.\n", __func__); if (boot == BOOT_CMD) { pr_debug("%s: going to call cdsp_loader_do\n", __func__); cdsp_loader_do(cdsp_private); } else if (boot == IMAGE_UNLOAD_CMD) { pr_debug("%s: going to call adsp_unloader\n", __func__); cdsp_loader_unload(cdsp_private); } return count; } static void cdsp_loader_unload(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; priv = platform_get_drvdata(pdev); if (!priv) return; if (priv->pil_h) { dev_dbg(&pdev->dev, "%s: calling subsystem put\n", __func__); subsystem_put(priv->pil_h); priv->pil_h = NULL; } } static int cdsp_loader_init_sysfs(struct platform_device *pdev) { int ret = -EINVAL; struct cdsp_loader_private *priv = NULL; cdsp_private = NULL; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { ret = -ENOMEM; return ret; } platform_set_drvdata(pdev, priv); priv->pil_h = NULL; priv->boot_cdsp_obj = NULL; priv->attr_group = devm_kzalloc(&pdev->dev, sizeof(*(priv->attr_group)), GFP_KERNEL); if (!priv->attr_group) { dev_err(&pdev->dev, "%s: malloc attr_group failed\n", __func__); ret = -ENOMEM; goto error_return; } priv->attr_group->attrs = attrs; priv->boot_cdsp_obj = kobject_create_and_add("boot_cdsp", kernel_kobj); if (!priv->boot_cdsp_obj) { dev_err(&pdev->dev, "%s: sysfs create and add failed\n", __func__); ret = -ENOMEM; goto error_return; } ret = sysfs_create_group(priv->boot_cdsp_obj, priv->attr_group); if (ret) { dev_err(&pdev->dev, "%s: sysfs create group failed %d\n", __func__, ret); goto error_return; } cdsp_private = pdev; return 0; error_return: if (priv->boot_cdsp_obj) { kobject_del(priv->boot_cdsp_obj); priv->boot_cdsp_obj = NULL; } return ret; } static int cdsp_loader_remove(struct platform_device *pdev) { struct cdsp_loader_private *priv = NULL; priv = platform_get_drvdata(pdev); if (!priv) return 0; if (priv->pil_h) { subsystem_put(priv->pil_h); priv->pil_h = NULL; } if (priv->boot_cdsp_obj) { sysfs_remove_group(priv->boot_cdsp_obj, priv->attr_group); kobject_del(priv->boot_cdsp_obj); priv->boot_cdsp_obj = NULL; } return 0; } static int cdsp_loader_probe(struct platform_device *pdev) { int ret = cdsp_loader_init_sysfs(pdev); if (ret != 0) { dev_err(&pdev->dev, "%s: Error in initing sysfs\n", __func__); return ret; } return 0; } static const struct of_device_id cdsp_loader_dt_match[] = { { .compatible = "qcom,cdsp-loader" }, { } }; MODULE_DEVICE_TABLE(of, cdsp_loader_dt_match); static struct platform_driver cdsp_loader_driver = { .driver = { .name = "cdsp-loader", .owner = THIS_MODULE, .of_match_table = cdsp_loader_dt_match, }, .probe = cdsp_loader_probe, .remove = cdsp_loader_remove, }; static int __init cdsp_loader_init(void) { return platform_driver_register(&cdsp_loader_driver); } module_init(cdsp_loader_init); static void __exit cdsp_loader_exit(void) { platform_driver_unregister(&cdsp_loader_driver); } module_exit(cdsp_loader_exit); MODULE_DESCRIPTION("CDSP Loader module"); MODULE_LICENSE("GPL v2");
