A27系列优化I2C/RTC处理，新增版本A270Y
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176
A27-STEPLDR/Src/usb/platform.c
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176
A27-STEPLDR/Src/usb/platform.c
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/*
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* platform.c - DesignWare HS OTG Controller platform driver
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*
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* Copyright (C) Matthijs Kooijman <matthijs@stdin.nl>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the above-listed copyright holders may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "usb_os_adapter.h"
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#include "trace.h"
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#include <asm/dma-mapping.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include "core.h"
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#include "hcd.h"
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#include "amt630h.h"
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#include "aic.h"
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static int dwc2_get_dr_mode(struct dwc2_hsotg *hsotg)
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{
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hsotg->dr_mode = USB_DR_MODE_HOST;
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return 0;
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}
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//static QueueHandle_t usb_irq_queue;
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//static TaskHandle_t usb_irq_task;
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//static char first_irq = 1;
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static void ark_usb_interrupt(void *param)
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{
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struct dwc2_hsotg *hsotg = (struct dwc2_hsotg *)param;
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//printf("ark_usb_interrupt\r\n");
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dwc2_handle_common_intr(hsotg->irq, param);
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dwc2_hcd_irq(hsotg);
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/*if (first_irq) {
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dwc2_hcd_irq(hsotg);
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first_irq = 0;
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} else {
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portDISABLE_INTERRUPTS();
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xQueueSendFromISR(usb_irq_queue, NULL, 0);
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}*/
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}
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#if 0
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static void usb_irq_task_proc(void *pvParameters)
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{
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struct dwc2_hsotg *hsotg = (struct dwc2_hsotg *)pvParameters;
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int ret = -1;
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while(1) {
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ret = xQueueReceive(usb_irq_queue, NULL, portMAX_DELAY);
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if (pdFALSE == ret) {
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continue;
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}
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//portENTER_CRITICAL();
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dwc2_hcd_irq(hsotg);
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portENABLE_INTERRUPTS();
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//portEXIT_CRITICAL();
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}
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}
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#endif
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int dwc2_driver_init(struct dwc2_hsotg **dev, struct usb_hcd *hcd)
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{
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struct dwc2_hsotg *hsotg;
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int retval = -1;
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u32 size = sizeof(struct device);
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hsotg = devm_kzalloc(NULL, sizeof(*hsotg), GFP_KERNEL);
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if (!hsotg)
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return -ENOMEM;
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hsotg->dev = (struct device *)kzalloc(size, (__GFP_ZERO | GFP_KERNEL));
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if (NULL == hsotg->dev)
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goto error;
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hsotg->phyif = GUSBCFG_PHYIF16;
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hsotg->regs = REGS_USB_BASE;
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spin_lock_init(&(hsotg->lock));
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hsotg->irq = USB_IRQn;
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retval = request_irq(hsotg->irq, 0, ark_usb_interrupt, (void*)hsotg);
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if (retval)
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goto error;
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retval = dwc2_get_dr_mode(hsotg);
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if (retval)
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goto error;
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/*
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* Reset before dwc2_get_hwparams() then it could get power-on real
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* reset value form registers.
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*/
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dwc2_core_reset_and_force_dr_mode(hsotg);
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/* Detect config values from hardware */
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retval = dwc2_get_hwparams(hsotg);
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if (retval)
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goto error;
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dwc2_force_dr_mode(hsotg);
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retval = dwc2_init_params(hsotg);
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if (retval)
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goto error;
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if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
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//usb_irq_queue = xQueueCreate(1, 0);
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//xTaskCreate(usb_irq_task_proc, "usb_irq_proc", configMINIMAL_STACK_SIZE * 5, (void*)dev, configMAX_PRIORITIES, &usb_irq_task);
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retval = dwc2_hcd_init(hsotg, hcd);
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if (retval) {
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goto error;
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}
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hsotg->hcd_enabled = 1;
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}
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if (dev) {
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*dev = hsotg;
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}
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return 0;
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error:
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if (hsotg && hsotg->dev) {
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kfree(hsotg->dev);
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}
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if (hsotg) {
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kfree(hsotg);
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}
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return retval;
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}
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int dwc2_driver_uninit(struct dwc2_hsotg *hsotg)
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{
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if (NULL == hsotg)
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return 0;
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if (hsotg->hcd_enabled)
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dwc2_hcd_remove(hsotg);
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if (hsotg->dev)
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kfree(hsotg->dev);
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kfree(hsotg);
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return 0;
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}
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