mirror of
https://github.com/sakumisu/CherryUSB.git
synced 2025-05-08 07:59:31 +08:00
294 lines
8.1 KiB
C
294 lines
8.1 KiB
C
/*
|
|
* Copyright (c) 2025, A_Stupid_Liberal
|
|
* Copyright (c) 2025, sakumisu
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "usbd_core.h"
|
|
#include "usbd_cdc_acm.h"
|
|
#include "general.h"
|
|
#include "gdb_if.h"
|
|
#include "hpm_l1c_drv.h"
|
|
|
|
#define CDC_IN_EP 0x81
|
|
#define CDC_OUT_EP 0x01
|
|
#define CDC_INT_EP 0x83
|
|
|
|
#define CDC_MAX_PACKET_SIZE 512
|
|
|
|
#ifdef CONFIG_USB_HS
|
|
#if CDC_MAX_PACKET_SIZE != 512
|
|
#error "CDC_MAX_PACKET_SIZE must be 512 in hs"
|
|
#endif
|
|
#else
|
|
#if CDC_MAX_PACKET_SIZE != 64
|
|
#error "CDC_MAX_PACKET_SIZE must be 64 in fs"
|
|
#endif
|
|
#endif
|
|
|
|
/*!< config descriptor size */
|
|
#define USB_CONFIG_SIZE (9 + CDC_ACM_DESCRIPTOR_LEN)
|
|
|
|
static const uint8_t device_descriptor[] = {
|
|
USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xEF, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01)
|
|
};
|
|
|
|
static const uint8_t config_descriptor_hs[] = {
|
|
USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
|
|
CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, USB_BULK_EP_MPS_HS, 0x02),
|
|
};
|
|
|
|
static const uint8_t config_descriptor_fs[] = {
|
|
USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
|
|
CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, USB_BULK_EP_MPS_FS, 0x02),
|
|
};
|
|
|
|
static const uint8_t device_quality_descriptor[] = {
|
|
USB_DEVICE_QUALIFIER_DESCRIPTOR_INIT(USB_2_0, 0xEF, 0x02, 0x01, 0x01),
|
|
};
|
|
|
|
static const uint8_t other_speed_config_descriptor_hs[] = {
|
|
USB_OTHER_SPEED_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
|
|
CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, USB_BULK_EP_MPS_FS, 0x02),
|
|
};
|
|
|
|
static const uint8_t other_speed_config_descriptor_fs[] = {
|
|
USB_OTHER_SPEED_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
|
|
CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, USB_BULK_EP_MPS_HS, 0x02),
|
|
};
|
|
|
|
static const char *string_descriptors[] = {
|
|
(const char[]){ 0x09, 0x04 }, /* Langid */
|
|
"CherryUSB", /* Manufacturer */
|
|
"CherryUSB BMP DEMO", /* Product */
|
|
"20250501", /* Serial Number */
|
|
};
|
|
|
|
static const uint8_t *device_descriptor_callback(uint8_t speed)
|
|
{
|
|
(void)speed;
|
|
|
|
return device_descriptor;
|
|
}
|
|
|
|
static const uint8_t *config_descriptor_callback(uint8_t speed)
|
|
{
|
|
if (speed == USB_SPEED_HIGH) {
|
|
return config_descriptor_hs;
|
|
} else if (speed == USB_SPEED_FULL) {
|
|
return config_descriptor_fs;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static const uint8_t *device_quality_descriptor_callback(uint8_t speed)
|
|
{
|
|
(void)speed;
|
|
|
|
return device_quality_descriptor;
|
|
}
|
|
|
|
static const uint8_t *other_speed_config_descriptor_callback(uint8_t speed)
|
|
{
|
|
if (speed == USB_SPEED_HIGH) {
|
|
return other_speed_config_descriptor_hs;
|
|
} else if (speed == USB_SPEED_FULL) {
|
|
return other_speed_config_descriptor_fs;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static const char *string_descriptor_callback(uint8_t speed, uint8_t index)
|
|
{
|
|
(void)speed;
|
|
|
|
if (index >= (sizeof(string_descriptors) / sizeof(char *))) {
|
|
return NULL;
|
|
}
|
|
return string_descriptors[index];
|
|
}
|
|
|
|
const struct usb_descriptor cdc_descriptor = {
|
|
.device_descriptor_callback = device_descriptor_callback,
|
|
.config_descriptor_callback = config_descriptor_callback,
|
|
.device_quality_descriptor_callback = device_quality_descriptor_callback,
|
|
.other_speed_descriptor_callback = other_speed_config_descriptor_callback,
|
|
.string_descriptor_callback = string_descriptor_callback,
|
|
};
|
|
|
|
#define USB_RX_BUFFER_SIZE 16384
|
|
__attribute__((aligned(64))) uint8_t g_usb_write_buffer[USB_RX_BUFFER_SIZE];
|
|
__attribute__((aligned(64))) uint8_t g_usb_read_buffer[USB_RX_BUFFER_SIZE];
|
|
|
|
volatile bool g_usb_tx_busy_flag = false;
|
|
volatile uint32_t g_usb_tx_count = 0;
|
|
volatile uint32_t g_usb_rx_count = 0;
|
|
volatile uint32_t g_usb_rx_offset = 0;
|
|
|
|
static void usbd_event_handler(uint8_t busid, uint8_t event)
|
|
{
|
|
switch (event) {
|
|
case USBD_EVENT_RESET:
|
|
g_usb_tx_busy_flag = false;
|
|
g_usb_rx_offset = 0;
|
|
g_usb_rx_count = 0;
|
|
g_usb_tx_count = 0;
|
|
break;
|
|
case USBD_EVENT_CONNECTED:
|
|
break;
|
|
case USBD_EVENT_DISCONNECTED:
|
|
g_usb_tx_busy_flag = false;
|
|
g_usb_rx_offset = 0;
|
|
g_usb_rx_count = 0;
|
|
g_usb_tx_count = 0;
|
|
break;
|
|
case USBD_EVENT_RESUME:
|
|
break;
|
|
case USBD_EVENT_SUSPEND:
|
|
break;
|
|
case USBD_EVENT_CONFIGURED:
|
|
/* setup first out ep read transfer */
|
|
usbd_ep_start_read(busid, CDC_OUT_EP, g_usb_read_buffer, USB_RX_BUFFER_SIZE);
|
|
break;
|
|
case USBD_EVENT_SET_REMOTE_WAKEUP:
|
|
break;
|
|
case USBD_EVENT_CLR_REMOTE_WAKEUP:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void usbd_cdc_acm_bulk_out(uint8_t busid, uint8_t ep, uint32_t nbytes)
|
|
{
|
|
(void)busid;
|
|
|
|
usb_dcache_invalidate((uint32_t)g_usb_read_buffer, USB_ALIGN_UP(nbytes, 64));
|
|
g_usb_rx_count = nbytes;
|
|
g_usb_rx_offset = 0;
|
|
}
|
|
|
|
void usbd_cdc_acm_bulk_in(uint8_t busid, uint8_t ep, uint32_t nbytes)
|
|
{
|
|
(void)busid;
|
|
|
|
if ((nbytes % usbd_get_ep_mps(busid, ep)) == 0 && nbytes) {
|
|
/* send zlp */
|
|
usbd_ep_start_write(busid, CDC_IN_EP, NULL, 0);
|
|
} else {
|
|
g_usb_tx_busy_flag = false;
|
|
}
|
|
}
|
|
|
|
/*!< endpoint call back */
|
|
struct usbd_endpoint cdc_out_ep = {
|
|
.ep_addr = CDC_OUT_EP,
|
|
.ep_cb = usbd_cdc_acm_bulk_out
|
|
};
|
|
|
|
struct usbd_endpoint cdc_in_ep = {
|
|
.ep_addr = CDC_IN_EP,
|
|
.ep_cb = usbd_cdc_acm_bulk_in
|
|
};
|
|
|
|
static struct usbd_interface intf0;
|
|
static struct usbd_interface intf1;
|
|
|
|
/* function ------------------------------------------------------------------*/
|
|
|
|
void cdc_acm_init(uint8_t busid, uint32_t reg_base)
|
|
{
|
|
usbd_desc_register(busid, &cdc_descriptor);
|
|
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf0));
|
|
usbd_add_interface(busid, usbd_cdc_acm_init_intf(busid, &intf1));
|
|
usbd_add_endpoint(busid, &cdc_out_ep);
|
|
usbd_add_endpoint(busid, &cdc_in_ep);
|
|
usbd_initialize(busid, reg_base, usbd_event_handler);
|
|
}
|
|
|
|
volatile bool dtr_enable = false;
|
|
|
|
void usbd_cdc_acm_set_dtr(uint8_t busid, uint8_t intf, bool dtr)
|
|
{
|
|
if (dtr) {
|
|
//printf("remote attach \r\n");
|
|
} else {
|
|
//printf("remote detach \r\n");
|
|
}
|
|
|
|
dtr_enable = dtr;
|
|
}
|
|
|
|
void gdb_if_putchar(const char c, const bool flush)
|
|
{
|
|
g_usb_write_buffer[g_usb_tx_count++] = c;
|
|
|
|
if (flush) {
|
|
g_usb_tx_busy_flag = true;
|
|
usb_dcache_clean((uint32_t)g_usb_write_buffer, USB_ALIGN_UP(g_usb_tx_count, 64));
|
|
usbd_ep_start_write(0, CDC_IN_EP, (uint8_t *)core_local_mem_to_sys_address(0, (uint32_t)g_usb_write_buffer), g_usb_tx_count);
|
|
while (g_usb_tx_busy_flag) {
|
|
}
|
|
g_usb_tx_count = 0;
|
|
}
|
|
}
|
|
|
|
void gdb_if_flush(const bool force)
|
|
{
|
|
g_usb_tx_busy_flag = true;
|
|
usb_dcache_clean((uint32_t)g_usb_write_buffer, USB_ALIGN_UP(g_usb_tx_count, 64));
|
|
usbd_ep_start_write(0, CDC_IN_EP, (uint8_t *)core_local_mem_to_sys_address(0, (uint32_t)g_usb_write_buffer), g_usb_tx_count);
|
|
while (g_usb_tx_busy_flag) {
|
|
}
|
|
g_usb_tx_count = 0;
|
|
}
|
|
|
|
static int __gdb_if_getchar(void)
|
|
{
|
|
if (dtr_enable == false) {
|
|
return '\04';
|
|
}
|
|
|
|
if (g_usb_rx_count > 0) {
|
|
if (g_usb_rx_offset < g_usb_rx_count) {
|
|
return g_usb_read_buffer[g_usb_rx_offset++];
|
|
} else {
|
|
g_usb_rx_count = 0;
|
|
/* setup first out ep read transfer */
|
|
usbd_ep_start_read(0, CDC_OUT_EP, g_usb_read_buffer, USB_RX_BUFFER_SIZE);
|
|
return -1;
|
|
}
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
char gdb_if_getchar(void)
|
|
{
|
|
int c;
|
|
|
|
while ((c = __gdb_if_getchar()) == -1) {
|
|
}
|
|
|
|
return (char)c;
|
|
}
|
|
|
|
char gdb_if_getchar_to(const uint32_t timeout)
|
|
{
|
|
int c = 0;
|
|
platform_timeout_s receive_timeout;
|
|
platform_timeout_set(&receive_timeout, timeout);
|
|
|
|
/* Wait while we need more data or until the timeout expires */
|
|
while (!platform_timeout_is_expired(&receive_timeout)) {
|
|
c = __gdb_if_getchar();
|
|
if (c != -1) {
|
|
return (char)c;
|
|
}
|
|
}
|
|
return -1;
|
|
} |