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luban-lite-t3e-pro/packages/third-party/cherryusb/port/ch32/usb_dc_usbfs.c
刘可亮 9f7ba67007 v1.0.3
2024-01-27 08:47:24 +08:00

400 lines
15 KiB
C
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#include "usbd_core.h"
#include "usb_ch32_usbfs_reg.h"
#ifdef CONFIG_USB_HS
#error "usb fs do not support hs"
#endif
#ifndef USBD_IRQHandler
#define USBD_IRQHandler OTG_FS_IRQHandler //use actual usb irq name instead
#endif
#ifndef USB_NUM_BIDIR_ENDPOINTS
#define USB_NUM_BIDIR_ENDPOINTS 8
#endif
#define USB_SET_DMA(ep_idx, addr) (*(volatile uint32_t *)((uint32_t)(&USBFS_DEVICE->UEP0_DMA) + 4 * ep_idx) = addr)
#define USB_SET_TX_LEN(ep_idx, len) (*(volatile uint16_t *)((uint32_t)(&USBFS_DEVICE->UEP0_TX_LEN) + 4 * ep_idx) = len)
#define USB_GET_TX_LEN(ep_idx) (*(volatile uint16_t *)((uint32_t)(&USBFS_DEVICE->UEP0_TX_LEN) + 4 * ep_idx))
#define USB_SET_TX_CTRL(ep_idx, val) (*(volatile uint8_t *)((uint32_t)(&USBFS_DEVICE->UEP0_TX_CTRL) + 4 * ep_idx) = val)
#define USB_GET_TX_CTRL(ep_idx) (*(volatile uint8_t *)((uint32_t)(&USBFS_DEVICE->UEP0_TX_CTRL) + 4 * ep_idx))
#define USB_SET_RX_CTRL(ep_idx, val) (*(volatile uint8_t *)((uint32_t)(&USBFS_DEVICE->UEP0_RX_CTRL) + 4 * ep_idx) = val)
#define USB_GET_RX_CTRL(ep_idx) (*(volatile uint8_t *)((uint32_t)(&USBFS_DEVICE->UEP0_RX_CTRL) + 4 * ep_idx))
/* Endpoint state */
struct ch32_usbfs_ep_state {
uint16_t ep_mps; /* Endpoint max packet size */
uint8_t ep_type; /* Endpoint type */
uint8_t ep_stalled; /* Endpoint stall flag */
uint8_t ep_enable; /* Endpoint enable */
uint8_t *xfer_buf;
uint32_t xfer_len;
uint32_t actual_xfer_len;
};
/* Driver state */
struct ch32_usbfs_udc {
__attribute__((aligned(4))) struct usb_setup_packet setup;
volatile uint8_t dev_addr;
struct ch32_usbfs_ep_state in_ep[USB_NUM_BIDIR_ENDPOINTS]; /*!< IN endpoint parameters*/
struct ch32_usbfs_ep_state out_ep[USB_NUM_BIDIR_ENDPOINTS]; /*!< OUT endpoint parameters */
__attribute__((aligned(4))) uint8_t ep_databuf[USB_NUM_BIDIR_ENDPOINTS - 1][64 + 64]; //epx_out(64)+epx_in(64)
} g_ch32_usbfs_udc;
volatile bool ep0_rx_data_toggle;
volatile bool ep0_tx_data_toggle;
void USBD_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
__WEAK void usb_dc_low_level_init(void)
{
}
__WEAK void usb_dc_low_level_deinit(void)
{
}
int usb_dc_init(void)
{
usb_dc_low_level_init();
USBFS_DEVICE->BASE_CTRL = 0x00;
USBFS_DEVICE->UEP4_1_MOD = USBFS_UEP4_RX_EN | USBFS_UEP4_TX_EN | USBFS_UEP1_RX_EN | USBFS_UEP1_TX_EN;
USBFS_DEVICE->UEP2_3_MOD = USBFS_UEP2_RX_EN | USBFS_UEP2_TX_EN | USBFS_UEP3_RX_EN | USBFS_UEP3_TX_EN;
USBFS_DEVICE->UEP5_6_MOD = USBFS_UEP5_RX_EN | USBFS_UEP5_TX_EN | USBFS_UEP6_RX_EN | USBFS_UEP6_TX_EN;
USBFS_DEVICE->UEP7_MOD = USBFS_UEP7_RX_EN | USBFS_UEP7_TX_EN;
USBFS_DEVICE->UEP1_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[0];
USBFS_DEVICE->UEP2_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[1];
USBFS_DEVICE->UEP3_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[2];
USBFS_DEVICE->UEP4_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[3];
USBFS_DEVICE->UEP5_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[4];
USBFS_DEVICE->UEP6_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[5];
USBFS_DEVICE->UEP7_DMA = (uint32_t)g_ch32_usbfs_udc.ep_databuf[6];
USBFS_DEVICE->INT_FG = 0xFF;
USBFS_DEVICE->INT_EN = USBFS_UIE_SUSPEND | USBFS_UIE_BUS_RST | USBFS_UIE_TRANSFER;
USBFS_DEVICE->DEV_ADDR = 0x00;
USBFS_DEVICE->BASE_CTRL = USBFS_UC_DEV_PU_EN | USBFS_UC_INT_BUSY | USBFS_UC_DMA_EN;
USBFS_DEVICE->UDEV_CTRL = USBFS_UD_PD_DIS | USBFS_UD_PORT_EN;
return 0;
}
int usb_dc_deinit(void)
{
return 0;
}
int usbd_set_address(const uint8_t addr)
{
if (addr == 0) {
USBFS_DEVICE->DEV_ADDR = (USBFS_DEVICE->DEV_ADDR & USBFS_UDA_GP_BIT) | 0;
}
g_ch32_usbfs_udc.dev_addr = addr;
return 0;
}
uint8_t usbd_get_port_speed(const uint8_t port)
{
return USB_SPEED_FULL;
}
int usbd_ep_open(const struct usb_endpoint_descriptor *ep)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep->bEndpointAddress);
if (USB_EP_DIR_IS_OUT(ep->bEndpointAddress)) {
g_ch32_usbfs_udc.out_ep[ep_idx].ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
g_ch32_usbfs_udc.out_ep[ep_idx].ep_type = USB_GET_ENDPOINT_TYPE(ep->bmAttributes);
g_ch32_usbfs_udc.out_ep[ep_idx].ep_enable = true;
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_NAK | USBFS_UEP_AUTO_TOG);
} else {
g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
g_ch32_usbfs_udc.in_ep[ep_idx].ep_type = USB_GET_ENDPOINT_TYPE(ep->bmAttributes);
g_ch32_usbfs_udc.in_ep[ep_idx].ep_enable = true;
USB_SET_TX_CTRL(ep_idx, USBFS_UEP_T_RES_NAK | USBFS_UEP_AUTO_TOG);
}
return 0;
}
int usbd_ep_close(const uint8_t ep)
{
return 0;
}
int usbd_ep_set_stall(const uint8_t ep)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
if (USB_EP_DIR_IS_OUT(ep)) {
if (ep_idx == 0) {
USBFS_DEVICE->UEP0_RX_CTRL = USBFS_UEP_R_TOG | USBFS_UEP_R_RES_STALL;
} else {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_STALL);
}
} else {
if (ep_idx == 0) {
USBFS_DEVICE->UEP0_TX_CTRL = USBFS_UEP_T_TOG | USBFS_UEP_T_RES_STALL;
} else {
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_STALL);
}
}
if (ep_idx == 0) {
USB_SET_DMA(ep_idx, (uint32_t)&g_ch32_usbfs_udc.setup);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
}
return 0;
}
int usbd_ep_clear_stall(const uint8_t ep)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
if (ep_idx == 0) {
return 0;
}
if (USB_EP_DIR_IS_OUT(ep)) {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~(USBFS_UEP_R_TOG | USBFS_UEP_R_RES_MASK)) | USBFS_UEP_R_RES_ACK);
} else {
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~(USBFS_UEP_T_TOG | USBFS_UEP_T_RES_MASK)) | USBFS_UEP_T_RES_NAK);
}
return 0;
}
int usbd_ep_is_stalled(const uint8_t ep, uint8_t *stalled)
{
return 0;
}
int usbd_ep_start_write(const uint8_t ep, const uint8_t *data, uint32_t data_len)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
if (!data && data_len) {
return -1;
}
if (!g_ch32_usbfs_udc.in_ep[ep_idx].ep_enable) {
return -2;
}
if ((uint32_t)data & 0x03) {
printf("data do not align4\r\n");
return -3;
}
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_buf = (uint8_t *)data;
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len = data_len;
g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len = 0;
if (ep_idx == 0) {
if (data_len == 0) {
USB_SET_TX_LEN(ep_idx, 0);
} else {
data_len = MIN(data_len, g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps);
USB_SET_TX_LEN(ep_idx, data_len);
USB_SET_DMA(ep_idx, (uint32_t)data);
}
if (ep0_tx_data_toggle) {
USB_SET_TX_CTRL(ep_idx, USBFS_UEP_T_TOG | USBFS_UEP_T_RES_ACK);
} else {
USB_SET_TX_CTRL(ep_idx, USBFS_UEP_T_RES_ACK);
}
} else {
if (data_len == 0) {
USB_SET_TX_LEN(ep_idx, 0);
} else {
data_len = MIN(data_len, g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps);
USB_SET_TX_LEN(ep_idx, data_len);
memcpy(&g_ch32_usbfs_udc.ep_databuf[ep_idx - 1][64], data, data_len);
}
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_ACK);
}
return 0;
}
int usbd_ep_start_read(const uint8_t ep, uint8_t *data, uint32_t data_len)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
if (!data && data_len) {
return -1;
}
if (!g_ch32_usbfs_udc.out_ep[ep_idx].ep_enable) {
return -2;
}
if ((uint32_t)data & 0x03) {
printf("data do not align4\r\n");
return -3;
}
g_ch32_usbfs_udc.out_ep[ep_idx].xfer_buf = (uint8_t *)data;
g_ch32_usbfs_udc.out_ep[ep_idx].xfer_len = data_len;
g_ch32_usbfs_udc.out_ep[ep_idx].actual_xfer_len = 0;
if (ep_idx == 0) {
if (data_len == 0) {
} else {
USB_SET_DMA(ep_idx, (uint32_t)data);
}
if (ep0_rx_data_toggle) {
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_TOG | USBFS_UEP_R_RES_ACK);
} else {
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
}
return 0;
} else {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_ACK);
}
return 0;
}
void USBD_IRQHandler(void)
{
uint32_t ep_idx = 0, token, write_count, read_count;
uint8_t intflag = 0;
intflag = USBFS_DEVICE->INT_FG;
if (intflag & USBFS_UIF_TRANSFER) {
token = USBFS_DEVICE->INT_ST & USBFS_UIS_TOKEN_MASK;
ep_idx = USBFS_DEVICE->INT_ST & USBFS_UIS_ENDP_MASK;
switch (token) {
case USBFS_UIS_TOKEN_SETUP:
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_NAK);
usbd_event_ep0_setup_complete_handler((uint8_t *)&g_ch32_usbfs_udc.setup);
break;
case USBFS_UIS_TOKEN_IN:
if (ep_idx == 0x00) {
if (g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len >= g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps) {
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len -= g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps;
g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len += g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps;
ep0_tx_data_toggle ^= 1;
} else {
g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len += g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len;
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len = 0;
ep0_tx_data_toggle = true;
}
usbd_event_ep_in_complete_handler(ep_idx | 0x80, g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len);
if (g_ch32_usbfs_udc.dev_addr > 0) {
USBFS_DEVICE->DEV_ADDR = (USBFS_DEVICE->DEV_ADDR & USBFS_UDA_GP_BIT) | g_ch32_usbfs_udc.dev_addr;
g_ch32_usbfs_udc.dev_addr = 0;
}
if (g_ch32_usbfs_udc.setup.wLength && ((g_ch32_usbfs_udc.setup.bmRequestType & USB_REQUEST_DIR_MASK) == USB_REQUEST_DIR_OUT)) {
/* In status, start reading setup */
USB_SET_DMA(ep_idx, (uint32_t)&g_ch32_usbfs_udc.setup);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
ep0_tx_data_toggle = true;
} else if (g_ch32_usbfs_udc.setup.wLength == 0) {
/* In status, start reading setup */
USB_SET_DMA(ep_idx, (uint32_t)&g_ch32_usbfs_udc.setup);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
ep0_tx_data_toggle = true;
}
} else {
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_NAK);
if (g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len > g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps) {
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_buf += g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps;
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len -= g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps;
g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len += g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps;
write_count = MIN(g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len, g_ch32_usbfs_udc.in_ep[ep_idx].ep_mps);
USB_SET_TX_LEN(ep_idx, write_count);
memcpy(&g_ch32_usbfs_udc.ep_databuf[ep_idx - 1][64], g_ch32_usbfs_udc.in_ep[ep_idx].xfer_buf, write_count);
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_ACK);
} else {
g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len += g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len;
g_ch32_usbfs_udc.in_ep[ep_idx].xfer_len = 0;
usbd_event_ep_in_complete_handler(ep_idx | 0x80, g_ch32_usbfs_udc.in_ep[ep_idx].actual_xfer_len);
}
}
break;
case USBFS_UIS_TOKEN_OUT:
if (ep_idx == 0x00) {
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_NAK);
read_count = USBFS_DEVICE->RX_LEN;
g_ch32_usbfs_udc.out_ep[ep_idx].actual_xfer_len += read_count;
g_ch32_usbfs_udc.out_ep[ep_idx].xfer_len -= read_count;
usbd_event_ep_out_complete_handler(0x00, g_ch32_usbfs_udc.out_ep[ep_idx].actual_xfer_len);
if (read_count == 0) {
/* Out status, start reading setup */
USB_SET_DMA(ep_idx, (uint32_t)&g_ch32_usbfs_udc.setup);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
ep0_rx_data_toggle = true;
ep0_tx_data_toggle = true;
} else {
ep0_rx_data_toggle ^= 1;
}
} else {
if (USBFS_DEVICE->INT_ST & USBFS_UIS_TOG_OK) {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_NAK);
read_count = USBFS_DEVICE->RX_LEN;
memcpy(g_ch32_usbfs_udc.out_ep[ep_idx].xfer_buf, &g_ch32_usbfs_udc.ep_databuf[ep_idx - 1][0], read_count);
g_ch32_usbfs_udc.out_ep[ep_idx].xfer_buf += read_count;
g_ch32_usbfs_udc.out_ep[ep_idx].actual_xfer_len += read_count;
g_ch32_usbfs_udc.out_ep[ep_idx].xfer_len -= read_count;
if ((read_count < g_ch32_usbfs_udc.out_ep[ep_idx].ep_mps) || (g_ch32_usbfs_udc.out_ep[ep_idx].xfer_len == 0)) {
usbd_event_ep_out_complete_handler(ep_idx, g_ch32_usbfs_udc.out_ep[ep_idx].actual_xfer_len);
} else {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_ACK);
}
}
}
break;
case USBFS_UIS_TOKEN_SOF:
break;
default:
break;
}
USBFS_DEVICE->INT_FG = USBFS_UIF_TRANSFER;
} else if (intflag & USBFS_UIF_BUS_RST) {
USBFS_DEVICE->UEP0_TX_LEN = 0;
USBFS_DEVICE->UEP0_TX_CTRL = USBFS_UEP_T_RES_NAK;
USBFS_DEVICE->UEP0_RX_CTRL = USBFS_UEP_R_RES_NAK;
for (uint8_t ep_idx = 1; ep_idx < USB_NUM_BIDIR_ENDPOINTS; ep_idx++) {
USB_SET_TX_LEN(ep_idx, 0);
USB_SET_TX_CTRL(ep_idx, USBFS_UEP_T_RES_NAK | USBFS_UEP_AUTO_TOG);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_NAK | USBFS_UEP_AUTO_TOG);
}
ep0_tx_data_toggle = true;
ep0_rx_data_toggle = true;
memset(&g_ch32_usbfs_udc, 0, sizeof(struct ch32_usbfs_udc));
usbd_event_reset_handler();
USB_SET_DMA(ep_idx, (uint32_t)&g_ch32_usbfs_udc.setup);
USB_SET_RX_CTRL(ep_idx, USBFS_UEP_R_RES_ACK);
USBFS_DEVICE->INT_FG |= USBFS_UIF_BUS_RST;
} else if (intflag & USBFS_UIF_SUSPEND) {
if (USBFS_DEVICE->MIS_ST & USBFS_UMS_SUSPEND) {
} else {
}
USBFS_DEVICE->INT_FG = USBFS_UIF_SUSPEND;
} else {
USBFS_DEVICE->INT_FG = intflag;
}
}
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