| /* |
| * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #include <linux/platform_device.h> |
| #include <linux/err.h> |
| #include <linux/list.h> |
| #include <linux/slab.h> |
| |
| #ifdef CONFIG_PLD_SNOC_ICNSS |
| #include <soc/qcom/icnss.h> |
| #endif |
| |
| #include "pld_internal.h" |
| #include "pld_snoc.h" |
| |
| #ifdef CONFIG_PLD_SNOC_ICNSS |
| /** |
| * pld_snoc_probe() - Probe function for platform driver |
| * @dev: device |
| * |
| * The probe function will be called when platform device |
| * is detected. |
| * |
| * Return: int |
| */ |
| static int pld_snoc_probe(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| int ret = 0; |
| |
| pld_context = pld_get_global_context(); |
| if (!pld_context) { |
| ret = -ENODEV; |
| goto out; |
| } |
| |
| ret = pld_add_dev(pld_context, dev, PLD_BUS_TYPE_SNOC); |
| if (ret) |
| goto out; |
| |
| return pld_context->ops->probe(dev, PLD_BUS_TYPE_SNOC, |
| NULL, NULL); |
| |
| out: |
| return ret; |
| } |
| |
| /** |
| * pld_snoc_remove() - Remove function for platform device |
| * @dev: device |
| * |
| * The remove function will be called when platform device |
| * is disconnected |
| * |
| * Return: void |
| */ |
| static void pld_snoc_remove(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| |
| if (!pld_context) |
| return; |
| |
| pld_context->ops->remove(dev, PLD_BUS_TYPE_SNOC); |
| |
| pld_del_dev(pld_context, dev); |
| } |
| |
| /** |
| * pld_snoc_reinit() - SSR re-initialize function for platform device |
| * @dev: device |
| * |
| * During subsystem restart(SSR), this function will be called to |
| * re-initialize platform device. |
| * |
| * Return: int |
| */ |
| static int pld_snoc_reinit(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->reinit) |
| return pld_context->ops->reinit(dev, PLD_BUS_TYPE_SNOC, |
| NULL, NULL); |
| |
| return -ENODEV; |
| } |
| |
| /** |
| * pld_snoc_shutdown() - SSR shutdown function for platform device |
| * @dev: device |
| * |
| * During SSR, this function will be called to shutdown platform device. |
| * |
| * Return: void |
| */ |
| static void pld_snoc_shutdown(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->shutdown) |
| pld_context->ops->shutdown(dev, PLD_BUS_TYPE_SNOC); |
| } |
| |
| /** |
| * pld_snoc_crash_shutdown() - Crash shutdown function for platform device |
| * @dev: device |
| * |
| * This function will be called when a crash is detected, it will shutdown |
| * platform device. |
| * |
| * Return: void |
| */ |
| static void pld_snoc_crash_shutdown(void *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->crash_shutdown) |
| pld_context->ops->crash_shutdown(dev, PLD_BUS_TYPE_SNOC); |
| } |
| |
| /** |
| * pld_snoc_pm_suspend() - PM suspend callback function for power management |
| * @dev: device |
| * |
| * This function is to suspend the platform device when power management |
| * is enabled. |
| * |
| * Return: void |
| */ |
| static int pld_snoc_pm_suspend(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| pm_message_t state; |
| |
| state.event = PM_EVENT_SUSPEND; |
| pld_context = pld_get_global_context(); |
| return pld_context->ops->suspend(dev, PLD_BUS_TYPE_SNOC, state); |
| } |
| |
| /** |
| * pld_snoc_pm_resume() - PM resume callback function for power management |
| * @pdev: device |
| * |
| * This function is to resume the platform device when power management |
| * is enabled. |
| * |
| * Return: void |
| */ |
| static int pld_snoc_pm_resume(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| return pld_context->ops->resume(dev, PLD_BUS_TYPE_SNOC); |
| } |
| |
| /** |
| * pld_snoc_suspend_noirq() - Complete the actions started by suspend() |
| * @dev: device |
| * |
| * Complete the actions started by suspend(). Carry out any |
| * additional operations required for suspending the device that might be |
| * racing with its driver's interrupt handler, which is guaranteed not to |
| * run while suspend_noirq() is being executed. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| static int pld_snoc_suspend_noirq(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (!pld_context) |
| return -EINVAL; |
| |
| if (pld_context->ops->suspend_noirq) |
| return pld_context->ops->suspend_noirq(dev, PLD_BUS_TYPE_SNOC); |
| return 0; |
| } |
| |
| /** |
| * pld_snoc_resume_noirq() - Prepare for the execution of resume() |
| * @pdev: device |
| * |
| * Prepare for the execution of resume() by carrying out any |
| * operations required for resuming the device that might be racing with |
| * its driver's interrupt handler, which is guaranteed not to run while |
| * resume_noirq() is being executed. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| static int pld_snoc_resume_noirq(struct device *dev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (!pld_context) |
| return -EINVAL; |
| |
| if (pld_context->ops->resume_noirq) |
| return pld_context->ops->resume_noirq(dev, PLD_BUS_TYPE_SNOC); |
| |
| return 0; |
| } |
| |
| static int pld_snoc_uevent(struct device *dev, |
| struct icnss_uevent_data *uevent) |
| { |
| struct pld_context *pld_context; |
| struct icnss_uevent_fw_down_data *uevent_data = NULL; |
| struct pld_uevent_data data; |
| |
| pld_context = pld_get_global_context(); |
| if (!pld_context) |
| return -EINVAL; |
| |
| if (!pld_context->ops->uevent) |
| goto out; |
| |
| if (!uevent) |
| return -EINVAL; |
| |
| switch (uevent->uevent) { |
| case ICNSS_UEVENT_FW_CRASHED: |
| data.uevent = PLD_RECOVERY; |
| break; |
| case ICNSS_UEVENT_FW_DOWN: |
| if (uevent->data == NULL) |
| return -EINVAL; |
| uevent_data = (struct icnss_uevent_fw_down_data *)uevent->data; |
| data.uevent = PLD_FW_DOWN; |
| data.fw_down.crashed = uevent_data->crashed; |
| break; |
| default: |
| goto out; |
| } |
| |
| pld_context->ops->uevent(dev, &data); |
| out: |
| return 0; |
| } |
| |
| #ifdef MULTI_IF_NAME |
| #define PLD_SNOC_OPS_NAME "pld_snoc_" MULTI_IF_NAME |
| #else |
| #define PLD_SNOC_OPS_NAME "pld_snoc" |
| #endif |
| |
| struct icnss_driver_ops pld_snoc_ops = { |
| .name = PLD_SNOC_OPS_NAME, |
| .probe = pld_snoc_probe, |
| .remove = pld_snoc_remove, |
| .shutdown = pld_snoc_shutdown, |
| .reinit = pld_snoc_reinit, |
| .crash_shutdown = pld_snoc_crash_shutdown, |
| .pm_suspend = pld_snoc_pm_suspend, |
| .pm_resume = pld_snoc_pm_resume, |
| .suspend_noirq = pld_snoc_suspend_noirq, |
| .resume_noirq = pld_snoc_resume_noirq, |
| .uevent = pld_snoc_uevent, |
| }; |
| |
| /** |
| * pld_snoc_register_driver() - Register platform device callback functions |
| * |
| * Return: int |
| */ |
| int pld_snoc_register_driver(void) |
| { |
| return icnss_register_driver(&pld_snoc_ops); |
| } |
| |
| /** |
| * pld_snoc_unregister_driver() - Unregister platform device callback functions |
| * |
| * Return: void |
| */ |
| void pld_snoc_unregister_driver(void) |
| { |
| icnss_unregister_driver(&pld_snoc_ops); |
| } |
| |
| /** |
| * pld_snoc_wlan_enable() - Enable WLAN |
| * @dev: device |
| * @config: WLAN configuration data |
| * @mode: WLAN mode |
| * @host_version: host software version |
| * |
| * This function enables WLAN FW. It passed WLAN configuration data, |
| * WLAN mode and host software version to FW. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| |
| #ifdef ICNSS_API_WITH_DEV |
| int pld_snoc_wlan_enable(struct device *dev, struct pld_wlan_enable_cfg *config, |
| enum pld_driver_mode mode, const char *host_version) |
| { |
| struct icnss_wlan_enable_cfg cfg; |
| enum icnss_driver_mode icnss_mode; |
| |
| if (!dev) |
| return -ENODEV; |
| |
| cfg.num_ce_tgt_cfg = config->num_ce_tgt_cfg; |
| cfg.ce_tgt_cfg = (struct ce_tgt_pipe_cfg *) |
| config->ce_tgt_cfg; |
| cfg.num_ce_svc_pipe_cfg = config->num_ce_svc_pipe_cfg; |
| cfg.ce_svc_cfg = (struct ce_svc_pipe_cfg *) |
| config->ce_svc_cfg; |
| cfg.num_shadow_reg_cfg = config->num_shadow_reg_cfg; |
| cfg.shadow_reg_cfg = (struct icnss_shadow_reg_cfg *) |
| config->shadow_reg_cfg; |
| |
| switch (mode) { |
| case PLD_FTM: |
| icnss_mode = ICNSS_FTM; |
| break; |
| case PLD_EPPING: |
| icnss_mode = ICNSS_EPPING; |
| break; |
| default: |
| icnss_mode = ICNSS_MISSION; |
| break; |
| } |
| |
| return icnss_wlan_enable(dev, &cfg, icnss_mode, host_version); |
| } |
| #else |
| int pld_snoc_wlan_enable(struct device *dev, struct pld_wlan_enable_cfg *config, |
| enum pld_driver_mode mode, const char *host_version) |
| { |
| struct icnss_wlan_enable_cfg cfg; |
| enum icnss_driver_mode icnss_mode; |
| |
| cfg.num_ce_tgt_cfg = config->num_ce_tgt_cfg; |
| cfg.ce_tgt_cfg = (struct ce_tgt_pipe_cfg *) |
| config->ce_tgt_cfg; |
| cfg.num_ce_svc_pipe_cfg = config->num_ce_svc_pipe_cfg; |
| cfg.ce_svc_cfg = (struct ce_svc_pipe_cfg *) |
| config->ce_svc_cfg; |
| cfg.num_shadow_reg_cfg = config->num_shadow_reg_cfg; |
| cfg.shadow_reg_cfg = (struct icnss_shadow_reg_cfg *) |
| config->shadow_reg_cfg; |
| |
| switch (mode) { |
| case PLD_FTM: |
| icnss_mode = ICNSS_FTM; |
| break; |
| case PLD_EPPING: |
| icnss_mode = ICNSS_EPPING; |
| break; |
| default: |
| icnss_mode = ICNSS_MISSION; |
| break; |
| } |
| |
| return icnss_wlan_enable(&cfg, icnss_mode, host_version); |
| } |
| #endif |
| |
| /** |
| * pld_snoc_wlan_disable() - Disable WLAN |
| * @dev: device |
| * @mode: WLAN mode |
| * |
| * This function disables WLAN FW. It passes WLAN mode to FW. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| #ifdef ICNSS_API_WITH_DEV |
| int pld_snoc_wlan_disable(struct device *dev, enum pld_driver_mode mode) |
| { |
| if (!dev) |
| return -ENODEV; |
| |
| return icnss_wlan_disable(dev, ICNSS_OFF); |
| } |
| #else |
| int pld_snoc_wlan_disable(struct device *dev, enum pld_driver_mode mode) |
| { |
| return icnss_wlan_disable(ICNSS_OFF); |
| } |
| #endif |
| |
| /** |
| * pld_snoc_get_soc_info() - Get SOC information |
| * @dev: device |
| * @info: buffer to SOC information |
| * |
| * Return SOC info to the buffer. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| #ifdef ICNSS_API_WITH_DEV |
| int pld_snoc_get_soc_info(struct device *dev, struct pld_soc_info *info) |
| { |
| int ret = 0; |
| struct icnss_soc_info icnss_info; |
| |
| if (info == NULL || !dev) |
| return -ENODEV; |
| |
| ret = icnss_get_soc_info(dev, &icnss_info); |
| if (0 != ret) |
| return ret; |
| |
| memcpy(info, &icnss_info, sizeof(*info)); |
| return 0; |
| } |
| #else |
| int pld_snoc_get_soc_info(struct device *dev, struct pld_soc_info *info) |
| { |
| int ret = 0; |
| struct icnss_soc_info icnss_info; |
| |
| if (info == NULL) |
| return -ENODEV; |
| |
| ret = icnss_get_soc_info(&icnss_info); |
| if (0 != ret) |
| return ret; |
| |
| memcpy(info, &icnss_info, sizeof(*info)); |
| return 0; |
| } |
| #endif |
| #endif |