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CherryUSB/port/ch32/usb_dc_usbhs.c
sakumisu 97a364b304 fix tx toggle control
2022-07-13 22:18:19 +08:00

328 lines
11 KiB
C
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#include "usbd_core.h"
#include "usb_ch32_usbhs_reg.h"
#ifndef USBD_IRQHandler
#define USBD_IRQHandler USBHS_IRQHandler //use actual usb irq name instead
#endif
#ifndef USB_NUM_BIDIR_ENDPOINTS
#define USB_NUM_BIDIR_ENDPOINTS 16
#endif
#define USB_SET_RX_DMA(ep_idx, addr) (*(volatile uint32_t *)((uint32_t)(&USBHS_DEVICE->UEP1_RX_DMA) + 4 * (ep_idx - 1)) = addr)
#define USB_SET_TX_DMA(ep_idx, addr) (*(volatile uint32_t *)((uint32_t)(&USBHS_DEVICE->UEP1_TX_DMA) + 4 * (ep_idx - 1)) = addr)
#define USB_SET_MAX_LEN(ep_idx, len) (*(volatile uint16_t *)((uint32_t)(&USBHS_DEVICE->UEP0_MAX_LEN) + 4 * ep_idx) = len)
#define USB_SET_TX_LEN(ep_idx, len) (*(volatile uint16_t *)((uint32_t)(&USBHS_DEVICE->UEP0_TX_LEN) + 4 * ep_idx) = len)
#define USB_GET_TX_LEN(ep_idx) (*(volatile uint16_t *)((uint32_t)(&USBHS_DEVICE->UEP0_TX_LEN) + 4 * ep_idx))
#define USB_SET_TX_CTRL(ep_idx, val) (*(volatile uint8_t *)((uint32_t)(&USBHS_DEVICE->UEP0_TX_CTRL) + 4 * ep_idx) = val)
#define USB_GET_TX_CTRL(ep_idx) (*(volatile uint8_t *)((uint32_t)(&USBHS_DEVICE->UEP0_TX_CTRL) + 4 * ep_idx))
#define USB_SET_RX_CTRL(ep_idx, val) (*(volatile uint8_t *)((uint32_t)(&USBHS_DEVICE->UEP0_RX_CTRL) + 4 * ep_idx) = val)
#define USB_GET_RX_CTRL(ep_idx) (*(volatile uint8_t *)((uint32_t)(&USBHS_DEVICE->UEP0_RX_CTRL) + 4 * ep_idx))
/* Endpoint state */
struct ch32_usbhs_ep_state {
/** Endpoint max packet size */
uint16_t ep_mps;
/** Endpoint Transfer Type.
* May be Bulk, Interrupt, Control or Isochronous
*/
uint8_t ep_type;
uint8_t ep_stalled; /** Endpoint stall flag */
};
/* Driver state */
struct ch32_usbhs_udc {
volatile uint8_t dev_addr;
struct ch32_usbhs_ep_state in_ep[USB_NUM_BIDIR_ENDPOINTS]; /*!< IN endpoint parameters*/
struct ch32_usbhs_ep_state out_ep[USB_NUM_BIDIR_ENDPOINTS]; /*!< OUT endpoint parameters */
__attribute__((aligned(4))) uint8_t ep_databuf[USB_NUM_BIDIR_ENDPOINTS - 1][512 + 512]; //epx_out(512)+epx_in(512)
} g_ch32_usbhs_udc;
// clang-format off
/* Endpoint Buffer */
__attribute__ ((aligned(4))) uint8_t EP0_DatabufHD[64]; //ep0(64)
__attribute__ ((aligned(4))) uint8_t EP1_DatabufHD[512+512]; //ep1_out(64)+ep1_in(64)
__attribute__ ((aligned(4))) uint8_t EP2_DatabufHD[512+512]; //ep2_out(64)+ep2_in(64)
// clang-format on
void USBHS_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
volatile bool ep0_data_toggle = 0x01;
volatile uint8_t mps_over_flag = 0;
volatile bool epx_data_toggle[USB_NUM_BIDIR_ENDPOINTS - 1];
__WEAK void usb_dc_low_level_init(void)
{
}
__WEAK void usb_dc_low_level_deinit(void)
{
}
int usb_dc_init(void)
{
memset(&g_ch32_usbhs_udc, 0, sizeof(struct ch32_usbhs_udc));
usb_dc_low_level_init();
USBHS_DEVICE->HOST_CTRL = 0x00;
USBHS_DEVICE->HOST_CTRL = USBHS_PHY_SUSPENDM;
USBHS_DEVICE->CONTROL = 0;
#ifdef CONFIG_USB_HS
USBHS_DEVICE->CONTROL = USBHS_DMA_EN | USBHS_INT_BUSY_EN | USBHS_HIGH_SPEED;
#else
USBHS_DEVICE->CONTROL = USBHS_DMA_EN | USBHS_INT_BUSY_EN | USBHS_FULL_SPEED;
#endif
USBHS_DEVICE->INT_FG = 0xff;
USBHS_DEVICE->INT_EN = 0;
USBHS_DEVICE->INT_EN = USBHS_SETUP_ACT_EN | USBHS_TRANSFER_EN | USBHS_DETECT_EN;
/* ALL endpoint enable */
USBHS_DEVICE->ENDP_CONFIG = 0xffffffff;
USBHS_DEVICE->ENDP_TYPE = 0x00;
USBHS_DEVICE->BUF_MODE = 0x00;
USBHS_DEVICE->UEP0_DMA = (uint32_t)EP0_DatabufHD;
for (uint8_t ep_idx = 1; ep_idx < USB_NUM_BIDIR_ENDPOINTS; ep_idx++) {
USB_SET_RX_DMA(ep_idx, (uint32_t)&g_ch32_usbhs_udc.ep_databuf[ep_idx - 1][0]);
USB_SET_TX_DMA(ep_idx, (uint32_t)&g_ch32_usbhs_udc.ep_databuf[ep_idx - 1][512]);
}
USBHS_DEVICE->CONTROL |= USBHS_DEV_PU_EN;
return 0;
}
int usb_dc_deinit(void)
{
return 0;
}
int usbd_set_address(const uint8_t addr)
{
if (addr == 0) {
USBHS_DEVICE->DEV_AD = addr & 0xff;
}
g_ch32_usbhs_udc.dev_addr = addr;
return 0;
}
int usbd_ep_open(const struct usbd_endpoint_cfg *ep_cfg)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep_cfg->ep_addr);
if (USB_EP_DIR_IS_OUT(ep_cfg->ep_addr)) {
g_ch32_usbhs_udc.out_ep[ep_idx].ep_mps = ep_cfg->ep_mps;
g_ch32_usbhs_udc.out_ep[ep_idx].ep_type = ep_cfg->ep_type;
USBHS_DEVICE->ENDP_CONFIG |= (1 << (ep_idx + 16));
USB_SET_RX_CTRL(ep_idx, USBHS_EP_R_RES_ACK | USBHS_EP_R_TOG_0 | USBHS_EP_R_AUTOTOG);
} else {
g_ch32_usbhs_udc.in_ep[ep_idx].ep_mps = ep_cfg->ep_mps;
g_ch32_usbhs_udc.in_ep[ep_idx].ep_type = ep_cfg->ep_type;
USBHS_DEVICE->ENDP_CONFIG |= (1 << (ep_idx));
USB_SET_TX_CTRL(ep_idx, USBHS_EP_T_RES_NAK | USBHS_EP_T_TOG_0 | USBHS_EP_T_AUTOTOG);
}
USB_SET_MAX_LEN(ep_idx, ep_cfg->ep_mps);
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) {
USBHS_DEVICE->UEP0_RX_CTRL = USBHS_EP_R_RES_STALL;
} else {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBHS_EP_R_RES_MASK) | USBHS_EP_R_RES_STALL);
}
} else {
if (ep_idx == 0) {
USBHS_DEVICE->UEP0_TX_CTRL = USBHS_EP_T_RES_STALL;
} else {
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~USBHS_EP_T_RES_MASK) | USBHS_EP_T_RES_STALL);
}
}
return 0;
}
int usbd_ep_clear_stall(const uint8_t ep)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
if (USB_EP_DIR_IS_OUT(ep)) {
USB_SET_RX_CTRL(ep_idx, USBHS_EP_R_RES_ACK | USBHS_EP_R_TOG_0);
} else {
USB_SET_TX_CTRL(ep_idx, USBHS_EP_T_RES_NAK | USBHS_EP_T_TOG_0);
}
return 0;
}
int usbd_ep_is_stalled(const uint8_t ep, uint8_t *stalled)
{
return 0;
}
int usbd_ep_write(const uint8_t ep, const uint8_t *data, uint32_t data_len, uint32_t *ret_bytes)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
uint32_t tmp;
if (!data && data_len) {
return -1;
}
while (((USB_GET_TX_CTRL(ep_idx) & USBHS_EP_T_RES_MASK) == USBHS_EP_T_RES_ACK) && (ep_idx != 0)) {
}
if (!data_len) {
if (ep_idx == 0) {
USB_SET_TX_LEN(ep_idx, 0);
} else {
USB_SET_TX_LEN(ep_idx, 0);
tmp = USB_GET_TX_CTRL(ep_idx);
tmp &= ~(USBHS_EP_T_RES_MASK | USBHS_EP_T_TOG_MASK);
tmp |= USBHS_EP_T_RES_ACK;
tmp |= (epx_data_toggle[ep_idx - 1] ? USBHS_EP_T_TOG_1 : USBHS_EP_T_TOG_0);
USB_SET_TX_CTRL(ep_idx, tmp);
epx_data_toggle[ep_idx - 1] ^= 1;
}
return 0;
}
if (data_len >= g_ch32_usbhs_udc.in_ep[ep_idx].ep_mps) {
data_len = g_ch32_usbhs_udc.in_ep[ep_idx].ep_mps;
if (ep_idx == 0) {
mps_over_flag = 1;
}
}
if (ep_idx == 0) {
memcpy(&EP0_DatabufHD[0], data, data_len);
USB_SET_TX_LEN(ep_idx, data_len);
} else {
USB_SET_TX_LEN(ep_idx, data_len);
memcpy(&g_ch32_usbhs_udc.ep_databuf[ep_idx - 1][512], data, data_len);
tmp = USB_GET_TX_CTRL(ep_idx);
tmp &= ~(USBHS_EP_T_RES_MASK | USBHS_EP_T_TOG_MASK);
tmp |= USBHS_EP_T_RES_ACK;
tmp |= (epx_data_toggle[ep_idx - 1] ? USBHS_EP_T_TOG_1 : USBHS_EP_T_TOG_0);
USB_SET_TX_CTRL(ep_idx, tmp);
epx_data_toggle[ep_idx - 1] ^= 1;
}
if (ret_bytes) {
*ret_bytes = data_len;
}
return 0;
}
int usbd_ep_read(const uint8_t ep, uint8_t *data, uint32_t max_data_len, uint32_t *read_bytes)
{
uint8_t ep_idx = USB_EP_GET_IDX(ep);
uint32_t read_count;
if (!data && max_data_len) {
return -1;
}
if (!max_data_len) {
if (ep_idx) {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBHS_EP_R_RES_MASK) | USBHS_EP_R_RES_ACK);
}
return 0;
}
read_count = USBHS_DEVICE->RX_LEN;
read_count = MIN(read_count, max_data_len);
if (ep_idx == 0x00) {
if ((max_data_len == 8) && !read_bytes) {
read_count = 8;
memcpy(data, &EP0_DatabufHD[0], 8);
} else {
memcpy(data, &EP0_DatabufHD[0], read_count);
}
} else {
memcpy(data, &g_ch32_usbhs_udc.ep_databuf[ep_idx - 1][0], read_count);
}
if (read_bytes) {
*read_bytes = read_count;
}
return 0;
}
void USBD_IRQHandler(void)
{
uint32_t ep_idx, token;
uint8_t intflag = 0;
intflag = USBHS_DEVICE->INT_FG;
if (intflag & USBHS_TRANSFER_FLAG) {
ep_idx = (USBHS_DEVICE->INT_ST) & MASK_UIS_ENDP;
token = (((USBHS_DEVICE->INT_ST) & MASK_UIS_TOKEN) >> 4) & 0x03;
if (token == PID_IN) {
if (ep_idx == 0x00) {
usbd_event_notify_handler(USBD_EVENT_EP0_IN_NOTIFY, NULL);
if (g_ch32_usbhs_udc.dev_addr > 0) {
USBHS_DEVICE->DEV_AD = g_ch32_usbhs_udc.dev_addr & 0xff;
g_ch32_usbhs_udc.dev_addr = 0;
}
if (mps_over_flag) {
mps_over_flag = 0;
ep0_data_toggle ^= 1;
USBHS_DEVICE->UEP0_TX_CTRL = USBHS_EP_T_RES_ACK | (ep0_data_toggle ? USBHS_EP_T_TOG_0 : USBHS_EP_T_TOG_1);
} else {
USBHS_DEVICE->UEP0_RX_CTRL = USBHS_EP_R_RES_ACK | USBHS_EP_R_TOG_1;
}
} else {
USB_SET_TX_CTRL(ep_idx, (USB_GET_TX_CTRL(ep_idx) & ~(USBHS_EP_T_RES_MASK | USBHS_EP_T_TOG_MASK)) | USBHS_EP_T_RES_NAK | USBHS_EP_T_TOG_0);
usbd_event_notify_handler(USBD_EVENT_EP_IN_NOTIFY, (void *)(ep_idx | 0x80));
}
} else if (token == PID_OUT) {
if (ep_idx == 0x00) {
usbd_event_notify_handler(USBD_EVENT_EP0_OUT_NOTIFY, NULL);
USBHS_DEVICE->UEP0_TX_CTRL = USBHS_EP_T_RES_ACK | USBHS_EP_T_TOG_1;
} else {
if (USBHS_DEVICE->INT_ST & USBHS_DEV_UIS_TOG_OK) {
USB_SET_RX_CTRL(ep_idx, (USB_GET_RX_CTRL(ep_idx) & ~USBHS_EP_R_RES_MASK) | USBHS_EP_R_RES_NAK);
usbd_event_notify_handler(USBD_EVENT_EP_OUT_NOTIFY, (void *)(ep_idx & 0x7f));
}
}
}
USBHS_DEVICE->INT_FG = USBHS_TRANSFER_FLAG;
} else if (intflag & USBHS_SETUP_FLAG) {
usbd_event_notify_handler(USBD_EVENT_SETUP_NOTIFY, NULL);
USBHS_DEVICE->UEP0_TX_CTRL = USBHS_EP_T_RES_ACK | USBHS_EP_T_TOG_1;
USBHS_DEVICE->INT_FG = USBHS_SETUP_FLAG;
} else if (intflag & USBHS_DETECT_FLAG) {
USBHS_DEVICE->ENDP_CONFIG = USBHS_EP0_T_EN | USBHS_EP0_R_EN;
USBHS_DEVICE->UEP0_TX_LEN = 0;
USBHS_DEVICE->UEP0_TX_CTRL = USBHS_EP_T_RES_NAK;
USBHS_DEVICE->UEP0_RX_CTRL = USBHS_EP_R_RES_ACK;
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, USBHS_EP_T_AUTOTOG | USBHS_EP_T_RES_NAK); // autotog does not work
USB_SET_RX_CTRL(ep_idx, USBHS_EP_R_AUTOTOG | USBHS_EP_R_RES_NAK);
epx_data_toggle[ep_idx - 1] = false;
}
usbd_event_notify_handler(USBD_EVENT_RESET, NULL);
USBHS_DEVICE->INT_FG = USBHS_DETECT_FLAG;
}
}
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