538 lines
15 KiB
C
538 lines
15 KiB
C
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/**************************************************************************//**
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*
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* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-3-25 Egbert First version
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*
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******************************************************************************/
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#include <rtconfig.h>
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#ifdef BSP_USING_USBD
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <string.h>
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#include "NuMicro.h"
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#define LOG_TAG "drv.usbd"
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#define DBG_ENABLE
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#define DBG_SECTION_NAME "drv.usbd"
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#define DBG_LEVEL DBG_ERROR
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#define DBG_COLOR
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#include <rtdbg.h>
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/* Private define ---------------------------------------------------------------*/
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/* Define EP maximum packet size */
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#define EP0_MAX_PKT_SIZE 64
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#define EP1_MAX_PKT_SIZE EP0_MAX_PKT_SIZE /* EP0 and EP1 are assigned the same size for control endpoint */
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#define EP2_MAX_PKT_SIZE 64
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#define EP3_MAX_PKT_SIZE 64
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#define EP4_MAX_PKT_SIZE 64
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#define EP5_MAX_PKT_SIZE 64
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#define EP6_MAX_PKT_SIZE 64
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#define EP7_MAX_PKT_SIZE 64
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#define EP8_MAX_PKT_SIZE 64
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#define EP9_MAX_PKT_SIZE 64
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#define SETUP_BUF_BASE 0
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#define SETUP_BUF_LEN 8
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#define EP0_BUF_BASE (SETUP_BUF_BASE + SETUP_BUF_LEN)
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#define EP0_BUF_LEN EP0_MAX_PKT_SIZE
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#define EP1_BUF_BASE (SETUP_BUF_BASE + SETUP_BUF_LEN)
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#define EP1_BUF_LEN EP1_MAX_PKT_SIZE
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#define EP2_BUF_BASE (EP1_BUF_BASE + EP1_BUF_LEN)
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#define EP2_BUF_LEN EP2_MAX_PKT_SIZE
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#define EP3_BUF_BASE (EP2_BUF_BASE + EP2_BUF_LEN)
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#define EP3_BUF_LEN EP3_MAX_PKT_SIZE
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#define EP4_BUF_BASE (EP3_BUF_BASE + EP3_BUF_LEN)
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#define EP4_BUF_LEN EP4_MAX_PKT_SIZE
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#define EP5_BUF_BASE (EP4_BUF_BASE + EP4_BUF_LEN)
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#define EP5_BUF_LEN EP5_MAX_PKT_SIZE
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#define EP6_BUF_BASE (EP5_BUF_BASE + EP5_BUF_LEN)
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#define EP6_BUF_LEN EP6_MAX_PKT_SIZE
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#define EP7_BUF_BASE (EP6_BUF_BASE + EP6_BUF_LEN)
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#define EP7_BUF_LEN EP7_MAX_PKT_SIZE
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#define EP8_BUF_BASE (EP7_BUF_BASE + EP7_BUF_LEN)
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#define EP8_BUF_LEN EP8_MAX_PKT_SIZE
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#define EP9_BUF_BASE (EP8_BUF_BASE + EP8_BUF_LEN)
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#define EP9_BUF_LEN EP9_MAX_PKT_SIZE
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#define EPADR_SW2HW(address) ((((address & USB_EPNO_MASK) * 2) + (!(address & USB_DIR_IN))))
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#define EPADR_HW2SW(address) ((address & USB_EPNO_MASK) / 2)
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/* Private typedef --------------------------------------------------------------*/
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typedef struct _nu_usbd_t
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{
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USBD_T *Instance; /* REG base */
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uint8_t address_tmp; /* Keep assigned address for flow control */
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} nu_usbd_t;
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/* Private variables ------------------------------------------------------------*/
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static nu_usbd_t nu_usbd =
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{
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.Instance = USBD,
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.address_tmp = 0,
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};
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static struct udcd _rt_obj_udc;
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static struct ep_id _ep_pool[] =
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{
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{EPADR_HW2SW(EP0), USB_EP_ATTR_CONTROL, USB_DIR_INOUT, EP0_MAX_PKT_SIZE, ID_ASSIGNED },
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{EPADR_HW2SW(EP2), USB_EP_ATTR_BULK, USB_DIR_IN, EP2_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP3), USB_EP_ATTR_BULK, USB_DIR_OUT, EP3_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP4), USB_EP_ATTR_INT, USB_DIR_IN, EP4_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP5), USB_EP_ATTR_INT, USB_DIR_OUT, EP5_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP6), USB_EP_ATTR_BULK, USB_DIR_IN, EP6_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP7), USB_EP_ATTR_BULK, USB_DIR_OUT, EP7_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP8), USB_EP_ATTR_INT, USB_DIR_IN, EP8_MAX_PKT_SIZE, ID_UNASSIGNED},
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{EPADR_HW2SW(EP9), USB_EP_ATTR_INT, USB_DIR_OUT, EP9_MAX_PKT_SIZE, ID_UNASSIGNED},
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{0xFF, USB_EP_ATTR_TYPE_MASK, USB_DIR_MASK, 0, ID_ASSIGNED },
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};
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static void _nu_ep_partition(void)
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{
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/* Init setup packet buffer */
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/* Buffer range for setup packet -> [0 ~ 0x7] */
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USBD->STBUFSEG = SETUP_BUF_BASE;
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/*****************************************************/
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/* EP0 ==> control IN endpoint, address 0 */
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USBD_CONFIG_EP(EP0, USBD_CFG_CSTALL | USBD_CFG_EPMODE_IN | EPADR_HW2SW(EP0));
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/* Buffer range for EP0 */
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USBD_SET_EP_BUF_ADDR(EP0, EP0_BUF_BASE);
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/* EP1 ==> control OUT endpoint, address 0 */
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USBD_CONFIG_EP(EP1, USBD_CFG_CSTALL | USBD_CFG_EPMODE_OUT | EPADR_HW2SW(EP1));
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/* Buffer range for EP1 */
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USBD_SET_EP_BUF_ADDR(EP1, EP1_BUF_BASE);
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/*****************************************************/
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/* EP2 ==> Bulk IN endpoint, address 1 */
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USBD_CONFIG_EP(EP2, USBD_CFG_EPMODE_IN | EPADR_HW2SW(EP2));
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/* Buffer range for EP2 */
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USBD_SET_EP_BUF_ADDR(EP2, EP2_BUF_BASE);
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/* EP3 ==> Bulk OUT endpoint, address 1 */
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USBD_CONFIG_EP(EP3, USBD_CFG_EPMODE_OUT | EPADR_HW2SW(EP3));
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/* Buffer range for EP3 */
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USBD_SET_EP_BUF_ADDR(EP3, EP3_BUF_BASE);
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/*****************************************************/
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/* EP4 ==> Interrupt IN endpoint, address 2 */
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USBD_CONFIG_EP(EP4, USBD_CFG_EPMODE_IN | EPADR_HW2SW(EP4));
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/* Buffer range for EP4 */
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USBD_SET_EP_BUF_ADDR(EP4, EP4_BUF_BASE);
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/* EP5 ==> Interrupt Out endpoint, address 2 */
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USBD_CONFIG_EP(EP5, USBD_CFG_EPMODE_OUT | EPADR_HW2SW(EP5));
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/* Buffer range for EP5 */
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USBD_SET_EP_BUF_ADDR(EP5, EP5_BUF_BASE);
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/*****************************************************/
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/* EP6 ==> Bulk IN endpoint, address 3 */
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USBD_CONFIG_EP(EP6, USBD_CFG_EPMODE_IN | EPADR_HW2SW(EP6));
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/* Buffer range for EP4 */
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USBD_SET_EP_BUF_ADDR(EP6, EP6_BUF_BASE);
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/* EP7 ==> Bulk Out endpoint, address 3 */
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USBD_CONFIG_EP(EP7, USBD_CFG_EPMODE_OUT | EPADR_HW2SW(EP7));
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/* Buffer range for EP5 */
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USBD_SET_EP_BUF_ADDR(EP7, EP7_BUF_BASE);
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/*****************************************************/
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/* EP8 ==> Interrupt IN endpoint, address 4 */
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USBD_CONFIG_EP(EP8, USBD_CFG_EPMODE_IN | EPADR_HW2SW(EP8));
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/* Buffer range for EP4 */
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USBD_SET_EP_BUF_ADDR(EP8, EP8_BUF_BASE);
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/* EP9 ==> Interrupt Out endpoint, address 4 */
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USBD_CONFIG_EP(EP9, USBD_CFG_EPMODE_OUT | EPADR_HW2SW(EP9));
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/* Buffer range for EP9 */
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USBD_SET_EP_BUF_ADDR(EP9, EP9_BUF_BASE);
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}
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static rt_err_t _ep_set_stall(rt_uint8_t address)
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{
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USBD_SET_EP_STALL(EPADR_SW2HW(address));
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return RT_EOK;
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}
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static rt_err_t _ep_clear_stall(rt_uint8_t address)
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{
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USBD_ClearStall(EPADR_SW2HW(address));
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return RT_EOK;
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}
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static rt_err_t _set_address(rt_uint8_t address)
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{
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if (0 != address)
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{
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nu_usbd.address_tmp = address;
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}
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return RT_EOK;
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}
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static rt_err_t _set_config(rt_uint8_t address)
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{
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return RT_EOK;
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}
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static rt_err_t _ep_enable(uep_t ep)
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{
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RT_ASSERT(ep != RT_NULL);
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RT_ASSERT(ep->ep_desc != RT_NULL);
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USBD_CONFIG_EP(EPADR_SW2HW(EP_ADDRESS(ep)),
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USBD_CFG_CSTALL
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| ((EP_ADDRESS(ep) & USB_DIR_IN) ? USBD_CFG_EPMODE_IN : USBD_CFG_EPMODE_OUT)
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| (EP_ADDRESS(ep) & USB_EPNO_MASK));
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return RT_EOK;
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}
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static rt_err_t _ep_disable(uep_t ep)
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{
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RT_ASSERT(ep != RT_NULL);
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RT_ASSERT(ep->ep_desc != RT_NULL);
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USBD_CONFIG_EP(EPADR_SW2HW(EP_ADDRESS(ep)), USBD_CFG_EPMODE_DISABLE);
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return RT_EOK;
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}
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static rt_size_t _ep_read(rt_uint8_t address, void *buffer)
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{
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rt_size_t size = 0;
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rt_uint8_t *buf;
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rt_uint32_t hw_ep_num = EPADR_SW2HW(address);
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RT_ASSERT(!(address & USB_DIR_IN));
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RT_ASSERT(buffer != RT_NULL);
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size = USBD_GET_PAYLOAD_LEN(hw_ep_num);
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buf = (uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(hw_ep_num));
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USBD_MemCopy(buffer, (uint8_t *)buf, size);
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return size;
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}
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static rt_size_t _ep_read_prepare(rt_uint8_t address, void *buffer, rt_size_t size)
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{
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RT_ASSERT(!(address & USB_DIR_IN));
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USBD_SET_PAYLOAD_LEN(EPADR_SW2HW(address), size);
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return size;
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}
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static rt_size_t _ep_write(rt_uint8_t address, void *buffer, rt_size_t size)
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{
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RT_ASSERT((address & USB_DIR_IN));
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/* even number is for IN endpoint */
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rt_uint32_t hw_ep_num = EPADR_SW2HW(address);
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uint8_t *buf;
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buf = (uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(hw_ep_num));
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USBD_MemCopy(buf, (uint8_t *)buffer, size);
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USBD_SET_PAYLOAD_LEN(hw_ep_num, size);
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return size;
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}
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static rt_err_t _ep0_send_status(void)
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{
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/* Status stage */
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USBD_SET_DATA1(EP0);
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USBD_SET_PAYLOAD_LEN(EP0, 0);
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return RT_EOK;
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}
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static rt_err_t _suspend(void)
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{
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return RT_EOK;
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}
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static rt_err_t _wakeup(void)
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{
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return RT_EOK;
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}
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__STATIC_INLINE void _USBD_IRQHandler(void)
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{
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rt_uint32_t u32IntSts = USBD_GET_INT_FLAG();
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rt_uint32_t u32State = USBD_GET_BUS_STATE();
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//------------------------------------------------------------------
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if (u32IntSts & USBD_INTSTS_VBDETIF_Msk)
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{
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// Floating detect
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USBD_CLR_INT_FLAG(USBD_INTSTS_VBDETIF_Msk);
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if (USBD_IS_ATTACHED())
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{
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/* USB Plug In */
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USBD_ENABLE_USB();
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rt_usbd_connect_handler(&_rt_obj_udc);
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}
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else
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{
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/* USB Un-plug */
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USBD_DISABLE_USB();
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rt_usbd_disconnect_handler(&_rt_obj_udc);
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}
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}
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if (u32IntSts & USBD_INTSTS_SOFIF_Msk)
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{
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USBD_CLR_INT_FLAG(USBD_INTSTS_SOFIF_Msk);
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rt_usbd_sof_handler(&_rt_obj_udc);
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}
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//------------------------------------------------------------------
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if (u32IntSts & USBD_INTSTS_BUSIF_Msk)
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{
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/* Clear event flag */
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USBD_CLR_INT_FLAG(USBD_INTSTS_BUSIF_Msk);
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if (u32State & USBD_ATTR_USBRST_Msk)
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{
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USBD_ENABLE_USB();
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/* Reset PID DATA0 */
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for (rt_uint32_t i = 0ul; i < USBD_MAX_EP; i++)
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{
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nu_usbd.Instance->EP[i].CFG &= ~USBD_CFG_DSQSYNC_Msk;
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}
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/* Reset USB device address */
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USBD_SET_ADDR(0ul);
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/* Bus reset */
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rt_usbd_reset_handler(&_rt_obj_udc);
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}
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if (u32State & USBD_ATTR_SUSPEND_Msk)
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{
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/* Enable USB but disable PHY */
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USBD_DISABLE_PHY();
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}
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if (u32State & USBD_ATTR_RESUME_Msk)
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{
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/* Enable USB and enable PHY */
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USBD_ENABLE_USB();
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}
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}
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//------------------------------------------------------------------
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if (u32IntSts & USBD_INTSTS_WAKEUP)
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{
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/* Clear event flag */
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USBD_CLR_INT_FLAG(USBD_INTSTS_WAKEUP);
|
||
|
|
USBD_ENABLE_USB();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_USBIF_Msk)
|
||
|
|
{
|
||
|
|
// USB event
|
||
|
|
if (u32IntSts & USBD_INTSTS_SETUP_Msk)
|
||
|
|
{
|
||
|
|
// Setup packet
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_SETUP_Msk);
|
||
|
|
|
||
|
|
/* Clear the data IN/OUT ready flag of control end-points */
|
||
|
|
USBD_STOP_TRANSACTION(EP0);
|
||
|
|
USBD_STOP_TRANSACTION(EP1);
|
||
|
|
|
||
|
|
USBD_SET_DATA1(EP0);
|
||
|
|
rt_usbd_ep0_setup_handler(&_rt_obj_udc, (struct urequest *)USBD_BUF_BASE);
|
||
|
|
}
|
||
|
|
|
||
|
|
// EP events
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP0)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP0);
|
||
|
|
|
||
|
|
if ( (USBD_GET_ADDR() == 0)
|
||
|
|
&& (nu_usbd.address_tmp)
|
||
|
|
)
|
||
|
|
{
|
||
|
|
USBD_SET_ADDR(nu_usbd.address_tmp);
|
||
|
|
LOG_I("SET ADDR: 0x%02x", nu_usbd.address_tmp);
|
||
|
|
nu_usbd.address_tmp = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_usbd_ep0_in_handler(&_rt_obj_udc);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP1)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP1);
|
||
|
|
rt_usbd_ep0_out_handler(&_rt_obj_udc, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP2)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP2);
|
||
|
|
rt_usbd_ep_in_handler(&_rt_obj_udc, USB_DIR_IN | EPADR_HW2SW(EP2), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP3)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP3);
|
||
|
|
rt_usbd_ep_out_handler(&_rt_obj_udc, USB_DIR_OUT | EPADR_HW2SW(EP3), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP4)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP4);
|
||
|
|
rt_usbd_ep_in_handler(&_rt_obj_udc, USB_DIR_IN | EPADR_HW2SW(EP4), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP5)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP5);
|
||
|
|
rt_usbd_ep_out_handler(&_rt_obj_udc, USB_DIR_OUT | EPADR_HW2SW(EP5), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP6)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP6);
|
||
|
|
rt_usbd_ep_in_handler(&_rt_obj_udc, USB_DIR_IN | EPADR_HW2SW(EP6), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP7)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP7);
|
||
|
|
rt_usbd_ep_out_handler(&_rt_obj_udc, USB_DIR_OUT | EPADR_HW2SW(EP7), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP8)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP8);
|
||
|
|
rt_usbd_ep_in_handler(&_rt_obj_udc, USB_DIR_IN | EPADR_HW2SW(EP8), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u32IntSts & USBD_INTSTS_EP9)
|
||
|
|
{
|
||
|
|
/* Clear event flag */
|
||
|
|
USBD_CLR_INT_FLAG(USBD_INTSTS_EP9);
|
||
|
|
rt_usbd_ep_out_handler(&_rt_obj_udc, USB_DIR_OUT | EPADR_HW2SW(EP9), 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void USBD_IRQHandler(void)
|
||
|
|
{
|
||
|
|
rt_interrupt_enter();
|
||
|
|
|
||
|
|
_USBD_IRQHandler();
|
||
|
|
|
||
|
|
/* leave interrupt */
|
||
|
|
rt_interrupt_leave();
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t _init(rt_device_t device)
|
||
|
|
{
|
||
|
|
nu_usbd_t *nu_usbd = (nu_usbd_t *)device->user_data;
|
||
|
|
|
||
|
|
/* Initialize USB PHY */
|
||
|
|
SYS_UnlockReg();
|
||
|
|
/* Select USBD */
|
||
|
|
SYS->USBPHY = (SYS->USBPHY & ~SYS_USBPHY_USBROLE_Msk) | SYS_USBPHY_USBEN_Msk | SYS_USBPHY_SBO_Msk;
|
||
|
|
SYS_ResetModule(USBD_RST);
|
||
|
|
SYS_LockReg();
|
||
|
|
|
||
|
|
_nu_ep_partition();
|
||
|
|
|
||
|
|
/* Initial USB engine */
|
||
|
|
nu_usbd->Instance->ATTR = 0x6D0ul;
|
||
|
|
|
||
|
|
/* Force SE0 */
|
||
|
|
USBD_SET_SE0();
|
||
|
|
|
||
|
|
NVIC_EnableIRQ(USBD_IRQn);
|
||
|
|
|
||
|
|
USBD_Start();
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
const static struct udcd_ops _udc_ops =
|
||
|
|
{
|
||
|
|
_set_address,
|
||
|
|
_set_config,
|
||
|
|
_ep_set_stall,
|
||
|
|
_ep_clear_stall,
|
||
|
|
_ep_enable,
|
||
|
|
_ep_disable,
|
||
|
|
_ep_read_prepare,
|
||
|
|
_ep_read,
|
||
|
|
_ep_write,
|
||
|
|
_ep0_send_status,
|
||
|
|
_suspend,
|
||
|
|
_wakeup,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef RT_USING_DEVICE_OPS
|
||
|
|
const static struct rt_device_ops _ops =
|
||
|
|
{
|
||
|
|
_init,
|
||
|
|
RT_NULL,
|
||
|
|
RT_NULL,
|
||
|
|
RT_NULL,
|
||
|
|
RT_NULL,
|
||
|
|
RT_NULL,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int nu_usbd_register(void)
|
||
|
|
{
|
||
|
|
if (RT_NULL != rt_device_find("usbd"))
|
||
|
|
{
|
||
|
|
LOG_E("\nUSBD Register failed. Another USBD device registered\n");
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_memset((void *)&_rt_obj_udc, 0, sizeof(struct udcd));
|
||
|
|
_rt_obj_udc.parent.type = RT_Device_Class_USBDevice;
|
||
|
|
|
||
|
|
#ifdef RT_USING_DEVICE_OPS
|
||
|
|
_rt_obj_udc.parent.ops = &_ops;
|
||
|
|
#else
|
||
|
|
_rt_obj_udc.parent.init = _init;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
_rt_obj_udc.parent.user_data = &nu_usbd;
|
||
|
|
_rt_obj_udc.ops = &_udc_ops;
|
||
|
|
/* Register endpoint infomation */
|
||
|
|
_rt_obj_udc.ep_pool = _ep_pool;
|
||
|
|
_rt_obj_udc.ep0.id = &_ep_pool[0];
|
||
|
|
|
||
|
|
_rt_obj_udc.device_is_hs = RT_FALSE; /* Support Full-Speed only */
|
||
|
|
|
||
|
|
rt_device_register((rt_device_t)&_rt_obj_udc, "usbd", 0);
|
||
|
|
rt_usb_device_init();
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
INIT_DEVICE_EXPORT(nu_usbd_register);
|
||
|
|
#endif
|