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/*
* Copyright (c) 2026, sakumisu
* Copyright (c) 2026, MDLZCOOL
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbd_core.h"
#include "usbh_core.h"
#include "usb_musb_reg.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_gpio.h"
#include "inc/hw_sysctl.h"
#include "inc/hw_usb.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "driverlib/interrupt.h"
#include "driverlib/pin_map.h"
#include "driverlib/rom.h"
#define TM4C_MUSB_RAM_SIZE 4096
// clang-format off
static struct musb_fifo_cfg musb_device_table[] = {
{ .ep_num = 0, .style = FIFO_TXRX, .maxpacket = 64, },
{ .ep_num = 1, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 2, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 3, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 4, .style = FIFO_TXRX, .maxpacket = 512, },
{ .ep_num = 5, .style = FIFO_TXRX, .maxpacket = 256, },
{ .ep_num = 6, .style = FIFO_TXRX, .maxpacket = 128, },
{ .ep_num = 7, .style = FIFO_TXRX, .maxpacket = 64, },
};
static struct musb_fifo_cfg musb_host_table[] = {
{ .ep_num = 0, .style = FIFO_TXRX, .maxpacket = 64, },
{ .ep_num = 1, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 2, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 3, .style = FIFO_TXRX, .maxpacket = 1024, },
{ .ep_num = 4, .style = FIFO_TXRX, .maxpacket = 512, },
{ .ep_num = 5, .style = FIFO_TXRX, .maxpacket = 256, },
{ .ep_num = 6, .style = FIFO_TXRX, .maxpacket = 128, },
{ .ep_num = 7, .style = FIFO_TXRX, .maxpacket = 64, },
};
// clang-format on
static void (*g_usb_irq_handler)(uint8_t busid) = NULL;
extern void USBH_IRQHandler(uint8_t busid);
extern void USBD_IRQHandler(uint8_t busid);
__WEAK void USBD_IRQHandler(uint8_t busid)
{
(void)busid;
}
__WEAK void USBH_IRQHandler(uint8_t busid)
{
(void)busid;
}
void USB0_Handler(void)
{
if (g_usb_irq_handler) {
g_usb_irq_handler(0);
}
}
uint8_t usbd_get_musb_fifo_cfg(struct musb_fifo_cfg **cfg)
{
*cfg = musb_device_table;
return sizeof(musb_device_table) / sizeof(musb_device_table[0]);
}
uint8_t usbh_get_musb_fifo_cfg(struct musb_fifo_cfg **cfg)
{
*cfg = musb_host_table;
return sizeof(musb_host_table) / sizeof(musb_host_table[0]);
}
uint32_t usb_get_musb_ram_size(void)
{
return TM4C_MUSB_RAM_SIZE;
}
void usbd_musb_delay_ms(uint8_t ms)
{
/* implement later */
}
void usb_dc_low_level_init(void)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_USB0))
;
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOD))
;
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOB))
;
SysCtlPeripheralReset(SYSCTL_PERIPH_USB0);
for (volatile int i = 0; i < 1000; i++)
;
GPIOPinTypeUSBAnalog(GPIO_PORTD_BASE, GPIO_PIN_4 | GPIO_PIN_5);
GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
HWREGB(USB0_BASE + USB_O_GPCS) = USB_GPCS_DEVMOD;
SysCtlUSBPLLEnable();
g_usb_irq_handler = USBD_IRQHandler;
IntPrioritySet(INT_USB0, (6 << 5));
IntEnable(INT_USB0);
}
void usb_dc_low_level_deinit(void)
{
IntDisable(INT_USB0);
g_usb_irq_handler = NULL;
SysCtlPeripheralDisable(SYSCTL_PERIPH_USB0);
}
void usb_hc_low_level_init(struct usbh_bus *bus)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_USB0))
;
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOD))
;
while (!SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOB))
;
SysCtlPeripheralReset(SYSCTL_PERIPH_USB0);
for (volatile int i = 0; i < 1000; i++)
;
GPIOPinTypeUSBAnalog(GPIO_PORTD_BASE, GPIO_PIN_4 | GPIO_PIN_5);
GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
HWREGB(USB0_BASE + USB_O_GPCS) &= ~(USB_GPCS_DEVMOD);
SysCtlUSBPLLEnable();
g_usb_irq_handler = USBH_IRQHandler;
IntPrioritySet(INT_USB0, (6 << 5));
IntEnable(INT_USB0);
}
void usb_hc_low_level_deinit(struct usbh_bus *bus)
{
IntDisable(INT_USB0);
g_usb_irq_handler = NULL;
SysCtlPeripheralDisable(SYSCTL_PERIPH_USB0);
}
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