| /* |
| * Copyright (c) 2016 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/pci.h> |
| #include <linux/list.h> |
| #include <linux/slab.h> |
| |
| #ifdef CONFIG_CNSS |
| #include <net/cnss.h> |
| #endif |
| |
| #include "pld_common.h" |
| #include "pld_internal.h" |
| |
| #ifdef CONFIG_PCI |
| |
| #ifdef QCA_WIFI_3_0_ADRASTEA |
| #define CE_COUNT_MAX 12 |
| #else |
| #define CE_COUNT_MAX 8 |
| #endif |
| |
| /** |
| * pld_pcie_probe() - Probe function for PCIE platform driver |
| * @pdev: PCIE device |
| * @id: PCIE device ID table |
| * |
| * The probe function will be called when PCIE device provided |
| * in the ID table is detected. |
| * |
| * Return: int |
| */ |
| static int pld_pcie_probe(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| struct pld_context *pld_context; |
| unsigned long flags; |
| struct dev_node *dev_node; |
| int ret = 0; |
| |
| pld_context = pld_get_global_context(); |
| if (!pld_context) { |
| ret = -ENODEV; |
| goto out; |
| } |
| |
| dev_node = kzalloc(sizeof(*dev_node), GFP_KERNEL); |
| if (dev_node == NULL) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| dev_node->dev = &pdev->dev; |
| dev_node->bus_type = PLD_BUS_TYPE_PCIE; |
| |
| spin_lock_irqsave(&pld_context->pld_lock, flags); |
| list_add_tail(&dev_node->list, &pld_context->dev_list); |
| spin_unlock_irqrestore(&pld_context->pld_lock, flags); |
| |
| return pld_context->ops->probe(&pdev->dev, |
| PLD_BUS_TYPE_PCIE, pdev, (void *)id); |
| |
| out: |
| return ret; |
| } |
| |
| |
| /** |
| * pld_pcie_remove() - Remove function for PCIE device |
| * @pdev: PCIE device |
| * |
| * The remove function will be called when PCIE device is disconnected |
| * |
| * Return: void |
| */ |
| static void pld_pcie_remove(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| unsigned long flags; |
| struct dev_node *dev_node, *tmp; |
| |
| pld_context = pld_get_global_context(); |
| |
| if (!pld_context) |
| return; |
| |
| pld_context->ops->remove(&pdev->dev, PLD_BUS_TYPE_PCIE); |
| |
| spin_lock_irqsave(&pld_context->pld_lock, flags); |
| list_for_each_entry_safe(dev_node, tmp, &pld_context->dev_list, list) { |
| if (dev_node->dev == &pdev->dev) { |
| list_del(&dev_node->list); |
| kfree(dev_node); |
| } |
| } |
| spin_unlock_irqrestore(&pld_context->pld_lock, flags); |
| } |
| |
| #ifdef CONFIG_CNSS |
| /** |
| * pld_pcie_reinit() - SSR re-initialize function for PCIE device |
| * @pdev: PCIE device |
| * @id: PCIE device ID |
| * |
| * During subsystem restart(SSR), this function will be called to |
| * re-initialize PCIE device. |
| * |
| * Return: int |
| */ |
| static int pld_pcie_reinit(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->reinit) |
| return pld_context->ops->reinit(&pdev->dev, |
| PLD_BUS_TYPE_PCIE, pdev, (void *)id); |
| |
| return -ENODEV; |
| } |
| |
| /** |
| * pld_pcie_shutdown() - SSR shutdown function for PCIE device |
| * @pdev: PCIE device |
| * |
| * During SSR, this function will be called to shutdown PCIE device. |
| * |
| * Return: void |
| */ |
| static void pld_pcie_shutdown(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->shutdown) |
| pld_context->ops->shutdown(&pdev->dev, PLD_BUS_TYPE_PCIE); |
| } |
| |
| /** |
| * pld_pcie_crash_shutdown() - Crash shutdown function for PCIE device |
| * @pdev: PCIE device |
| * |
| * This function will be called when a crash is detected, it will shutdown |
| * the PCIE device. |
| * |
| * Return: void |
| */ |
| static void pld_pcie_crash_shutdown(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->crash_shutdown) |
| pld_context->ops->crash_shutdown(&pdev->dev, PLD_BUS_TYPE_PCIE); |
| } |
| |
| /** |
| * pld_pcie_notify_handler() - Modem state notification callback function |
| * @pdev: PCIE device |
| * @state: modem power state |
| * |
| * This function will be called when there's a modem power state change. |
| * |
| * Return: void |
| */ |
| static void pld_pcie_notify_handler(struct pci_dev *pdev, int state) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->modem_status) |
| pld_context->ops->modem_status(&pdev->dev, |
| PLD_BUS_TYPE_PCIE, state); |
| } |
| |
| #ifdef FEATURE_RUNTIME_PM |
| /** |
| * pld_pcie_runtime_suspend() - PM runtime suspend |
| * @pdev: PCIE device |
| * |
| * PM runtime suspend callback function. |
| * |
| * Return: int |
| */ |
| static int pld_pcie_runtime_suspend(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->runtime_suspend) |
| return pld_context->ops->runtime_suspend(&pdev->dev, |
| PLD_BUS_TYPE_PCIE); |
| |
| return -ENODEV; |
| } |
| |
| /** |
| * pld_pcie_runtime_resume() - PM runtime resume |
| * @pdev: PCIE device |
| * |
| * PM runtime resume callback function. |
| * |
| * Return: int |
| */ |
| static int pld_pcie_runtime_resume(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| if (pld_context->ops->runtime_resume) |
| return pld_context->ops->runtime_resume(&pdev->dev, |
| PLD_BUS_TYPE_PCIE); |
| |
| return -ENODEV; |
| } |
| #endif |
| #endif |
| |
| #ifdef CONFIG_PM |
| /** |
| * pld_pcie_suspend() - Suspend callback function for power management |
| * @pdev: PCIE device |
| * @state: power state |
| * |
| * This function is to suspend the PCIE device when power management is |
| * enabled. |
| * |
| * Return: void |
| */ |
| static int pld_pcie_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| return pld_context->ops->suspend(&pdev->dev, |
| PLD_BUS_TYPE_PCIE, state); |
| } |
| |
| /** |
| * pld_pcie_resume() - Resume callback function for power management |
| * @pdev: PCIE device |
| * |
| * This function is to resume the PCIE device when power management is |
| * enabled. |
| * |
| * Return: void |
| */ |
| static int pld_pcie_resume(struct pci_dev *pdev) |
| { |
| struct pld_context *pld_context; |
| |
| pld_context = pld_get_global_context(); |
| return pld_context->ops->resume(&pdev->dev, PLD_BUS_TYPE_PCIE); |
| } |
| #endif |
| |
| static struct pci_device_id pld_pcie_id_table[] = { |
| { 0x168c, 0x003c, PCI_ANY_ID, PCI_ANY_ID }, |
| { 0x168c, 0x003e, PCI_ANY_ID, PCI_ANY_ID }, |
| { 0x168c, 0x0041, PCI_ANY_ID, PCI_ANY_ID }, |
| { 0x168c, 0xabcd, PCI_ANY_ID, PCI_ANY_ID }, |
| { 0x168c, 0x7021, PCI_ANY_ID, PCI_ANY_ID }, |
| { 0 } |
| }; |
| |
| #ifdef CONFIG_CNSS |
| #ifdef FEATURE_RUNTIME_PM |
| struct cnss_wlan_runtime_ops runtime_pm_ops = { |
| .runtime_suspend = pld_pcie_runtime_suspend, |
| .runtime_resume = pld_pcie_runtime_resume, |
| }; |
| #endif |
| |
| struct cnss_wlan_driver pld_pcie_ops = { |
| .name = "pld_pcie", |
| .id_table = pld_pcie_id_table, |
| .probe = pld_pcie_probe, |
| .remove = pld_pcie_remove, |
| .reinit = pld_pcie_reinit, |
| .shutdown = pld_pcie_shutdown, |
| .crash_shutdown = pld_pcie_crash_shutdown, |
| .modem_status = pld_pcie_notify_handler, |
| #ifdef CONFIG_PM |
| .suspend = pld_pcie_suspend, |
| .resume = pld_pcie_resume, |
| #endif |
| #ifdef FEATURE_RUNTIME_PM |
| .runtime_ops = &runtime_pm_ops, |
| #endif |
| }; |
| |
| /** |
| * pld_pcie_register_driver() - Register PCIE device callback functions |
| * |
| * Return: int |
| */ |
| int pld_pcie_register_driver(void) |
| { |
| return cnss_wlan_register_driver(&pld_pcie_ops); |
| } |
| |
| /** |
| * pld_pcie_unregister_driver() - Unregister PCIE device callback functions |
| * |
| * Return: void |
| */ |
| void pld_pcie_unregister_driver(void) |
| { |
| cnss_wlan_unregister_driver(&pld_pcie_ops); |
| } |
| #else |
| struct pci_driver pld_pcie_ops = { |
| .name = "pld_pcie", |
| .id_table = pld_pcie_id_table, |
| .probe = pld_pcie_probe, |
| .remove = pld_pcie_remove, |
| #ifdef CONFIG_PM |
| .suspend = pld_pcie_suspend, |
| .resume = pld_pcie_resume, |
| #endif |
| }; |
| |
| int pld_pcie_register_driver(void) |
| { |
| return pci_register_driver(&pld_pcie_ops); |
| } |
| |
| void pld_pcie_unregister_driver(void) |
| { |
| pci_unregister_driver(&pld_pcie_ops); |
| } |
| #endif |
| |
| /** |
| * pld_pcie_get_ce_id() - Get CE number for the provided IRQ |
| * @irq: IRQ number |
| * |
| * Return: CE number |
| */ |
| int pld_pcie_get_ce_id(int irq) |
| { |
| int ce_id = irq - 100; |
| if (ce_id < CE_COUNT_MAX && ce_id >= 0) |
| return ce_id; |
| |
| return -EINVAL; |
| } |
| |
| #ifdef CONFIG_CNSS |
| #ifdef QCA_WIFI_3_0_ADRASTEA |
| /** |
| * pld_pcie_wlan_enable() - Enable WLAN |
| * @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 |
| */ |
| int pld_pcie_wlan_enable(struct pld_wlan_enable_cfg *config, |
| enum pld_driver_mode mode, const char *host_version) |
| { |
| struct cnss_wlan_enable_cfg cfg; |
| enum cnss_driver_mode cnss_mode; |
| |
| cfg.num_ce_tgt_cfg = config->num_ce_tgt_cfg; |
| cfg.ce_tgt_cfg = (struct cnss_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 cnss_ce_svc_pipe_cfg *) |
| config->ce_svc_cfg; |
| cfg.num_shadow_reg_cfg = config->num_shadow_reg_cfg; |
| cfg.shadow_reg_cfg = (struct cnss_shadow_reg_cfg *) |
| config->shadow_reg_cfg; |
| |
| switch (mode) { |
| case PLD_FTM: |
| cnss_mode = CNSS_FTM; |
| break; |
| case PLD_EPPING: |
| cnss_mode = CNSS_EPPING; |
| break; |
| default: |
| cnss_mode = CNSS_MISSION; |
| break; |
| } |
| return cnss_wlan_enable(&cfg, cnss_mode, host_version); |
| } |
| |
| /** |
| * pld_pcie_wlan_disable() - Disable WLAN |
| * @mode: WLAN mode |
| * |
| * This function disables WLAN FW. It passes WLAN mode to FW. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_wlan_disable(enum pld_driver_mode mode) |
| { |
| return cnss_wlan_disable(CNSS_OFF); |
| } |
| |
| /** |
| * pld_pcie_set_fw_debug_mode() - Set FW debug mode |
| * @mode: 0 for QXDM, 1 for WMI |
| * |
| * Switch Fw debug mode between DIAG logging and WMI logging. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_set_fw_debug_mode(bool mode) |
| { |
| return cnss_set_fw_debug_mode(mode); |
| } |
| #endif |
| |
| /** |
| * pld_pcie_get_fw_files_for_target() - Get FW file names |
| * @pfw_files: buffer for FW file names |
| * @target_type: target type |
| * @target_version: target version |
| * |
| * Return target specific FW file names to the buffer. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_get_fw_files_for_target(struct pld_fw_files *pfw_files, |
| u32 target_type, u32 target_version) |
| { |
| int ret = 0; |
| struct cnss_fw_files cnss_fw_files; |
| |
| if (pfw_files == NULL) |
| return -ENODEV; |
| |
| memset(pfw_files, 0, sizeof(*pfw_files)); |
| |
| ret = cnss_get_fw_files_for_target(&cnss_fw_files, |
| target_type, target_version); |
| if (0 != ret) |
| return ret; |
| |
| strlcpy(pfw_files->image_file, cnss_fw_files.image_file, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->board_data, cnss_fw_files.board_data, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->otp_data, cnss_fw_files.otp_data, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->utf_file, cnss_fw_files.utf_file, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->utf_board_data, cnss_fw_files.utf_board_data, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->epping_file, cnss_fw_files.epping_file, |
| PLD_MAX_FILE_NAME); |
| strlcpy(pfw_files->evicted_data, cnss_fw_files.evicted_data, |
| PLD_MAX_FILE_NAME); |
| |
| return 0; |
| } |
| |
| /** |
| * pld_pcie_get_fw_image() - Get FW image descriptor |
| * @image_desc_info: buffer for image descriptor |
| * |
| * Return FW image descriptor to the buffer. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_get_fw_image(struct pld_image_desc_info *image_desc_info) |
| { |
| int ret = 0; |
| struct image_desc_info cnss_image_desc_info; |
| |
| if (image_desc_info == NULL) |
| return -ENODEV; |
| |
| ret = cnss_get_fw_image(&cnss_image_desc_info); |
| if (0 != ret) |
| return ret; |
| |
| memcpy(image_desc_info, &cnss_image_desc_info, |
| sizeof(*image_desc_info)); |
| return 0; |
| } |
| |
| /** |
| * pld_pcie_get_codeswap_struct() - Get codeswap structure |
| * @swap_seg: buffer to codeswap information |
| * |
| * Return codeswap structure information to the buffer. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_get_codeswap_struct(struct pld_codeswap_codeseg_info *swap_seg) |
| { |
| int ret = 0; |
| struct codeswap_codeseg_info cnss_swap_seg; |
| |
| if (swap_seg == NULL) |
| return -ENODEV; |
| |
| ret = cnss_get_codeswap_struct(&cnss_swap_seg); |
| if (0 != ret) |
| return ret; |
| |
| memcpy(swap_seg, &cnss_swap_seg, sizeof(*swap_seg)); |
| return 0; |
| } |
| |
| /** |
| * pld_pcie_get_platform_cap() - Get platform capabilities |
| * @cap: buffer to the capabilities |
| * |
| * Return capabilities to the buffer. |
| * |
| * Return: 0 for success |
| * Non zero failure code for errors |
| */ |
| int pld_pcie_get_platform_cap(struct pld_platform_cap *cap) |
| { |
| int ret = 0; |
| struct cnss_platform_cap cnss_cap; |
| |
| if (cap == NULL) |
| return -ENODEV; |
| |
| ret = cnss_get_platform_cap(&cnss_cap); |
| if (0 != ret) |
| return ret; |
| |
| memcpy(cap, &cnss_cap, sizeof(*cap)); |
| return 0; |
| } |
| |
| /** |
| * pld_pcie_set_driver_status() - Set driver status |
| * @status: driver status |
| * |
| * Return: void |
| */ |
| void pld_pcie_set_driver_status(enum pld_driver_status status) |
| { |
| enum cnss_driver_status cnss_status; |
| |
| switch (status) { |
| case PLD_UNINITIALIZED: |
| cnss_status = CNSS_UNINITIALIZED; |
| break; |
| case PLD_INITIALIZED: |
| cnss_status = CNSS_INITIALIZED; |
| break; |
| default: |
| cnss_status = CNSS_LOAD_UNLOAD; |
| break; |
| } |
| cnss_set_driver_status(cnss_status); |
| } |
| #endif |
| |
| #endif |