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-rw-r--r--libmaple/usb/usb.c33
-rw-r--r--libmaple/usb/usb_callbacks.c2
-rw-r--r--libmaple/usb/usb_config.h7
-rw-r--r--libmaple/usb/usb_hardware.c41
-rw-r--r--libmaple/usb/usb_hardware.h36
5 files changed, 39 insertions, 80 deletions
diff --git a/libmaple/usb/usb.c b/libmaple/usb/usb.c
index 62f56fc..2fc4eb2 100644
--- a/libmaple/usb/usb.c
+++ b/libmaple/usb/usb.c
@@ -44,7 +44,7 @@
volatile uint32 bDeviceState = UNCONNECTED;
volatile uint16 wIstr = 0;
-volatile bIntPackSOF = 0;
+volatile uint32 bIntPackSOF = 0;
DEVICE Device_Table =
{NUM_ENDPTS,
@@ -99,15 +99,13 @@ struct {
} ResumeS;
void setupUSB (void) {
- gpio_set_mode(USB_DISC_BANK,
- USB_DISC_PIN,
- GPIO_MODE_OUTPUT_PP);
+ gpio_set_mode(USB_DISC_DEV, USB_DISC_PIN, GPIO_OUTPUT_PP);
/* setup the apb1 clock for USB */
pRCC->APB1ENR |= 0x00800000;
/* initialize the usb application */
- gpio_write_bit(USB_DISC_BANK, USB_DISC_PIN, 0); // presents us to the host
+ gpio_write_bit(USB_DISC_DEV, USB_DISC_PIN, 0); // presents us to the host
USB_Init(); // low level init routine provided by the ST library
}
@@ -115,7 +113,7 @@ void disableUSB (void) {
// These are just guesses about how to do this
// TODO: real disable function
usbDsbISR();
- gpio_write_bit(USB_DISC_BANK,USB_DISC_PIN,1);
+ gpio_write_bit(USB_DISC_DEV, USB_DISC_PIN, 1);
}
void usbSuspend(void) {
@@ -320,8 +318,29 @@ if (wIstr & ISTR_CTR & wInterrupt_Mask) {
}
+static void FIXME_delayMicroseconds_copy(uint32 us) {
+ /* So (2^32)/12 micros max, or less than 6 minutes */
+ us *= 12;
+
+ /* fudge for function call overhead */
+ us--;
+ asm volatile(" mov r0, %[us] \n\t"
+ "1: subs r0, #1 \n\t"
+ " bhi 1b \n\t"
+ :
+ : [us] "r" (us)
+ : "r0");
+}
+
+static void FIXME_delay_copy(unsigned long ms) {
+ uint32 i;
+ for (i = 0; i < ms; i++) {
+ FIXME_delayMicroseconds_copy(1000);
+ }
+}
+
void usbWaitReset(void) {
- delay(RESET_DELAY);
+ FIXME_delay_copy(RESET_DELAY);
systemHardReset();
}
diff --git a/libmaple/usb/usb_callbacks.c b/libmaple/usb/usb_callbacks.c
index ccb0fdd..8184537 100644
--- a/libmaple/usb/usb_callbacks.c
+++ b/libmaple/usb/usb_callbacks.c
@@ -129,7 +129,7 @@ u8* vcomGetSetLineCoding(uint16 length) {
return (uint8*)&line_coding;
}
-vcomSetLineState(void) {
+void vcomSetLineState(void) {
}
void usbInit(void) {
diff --git a/libmaple/usb/usb_config.h b/libmaple/usb/usb_config.h
index 394c580..9003da9 100644
--- a/libmaple/usb/usb_config.h
+++ b/libmaple/usb/usb_config.h
@@ -4,6 +4,7 @@
#define __USB_CONFIG_H
#include "usb_lib.h"
+#include "gpio.h"
/******************************************************************************
******************************************************************************
@@ -31,19 +32,19 @@
/* USB Identifier numbers */
#define VCOM_ID_PRODUCT 0x0004
- #define USB_DISC_BANK GPIOC_BASE
+ #define USB_DISC_DEV GPIOC
#define USB_DISC_PIN 12
#elif defined(BOARD_maple_mini)
#define VCOM_ID_PRODUCT 0x0005
- #define USB_DISC_BANK GPIOB_BASE
+ #define USB_DISC_DEV GPIOB
#define USB_DISC_PIN 9
#elif defined(BOARD_maple_native)
#define VCOM_ID_PRODUCT 0x0006
- #define USB_DISC_BANK GPIOB_BASE
+ #define USB_DISC_DEV GPIOB
#define USB_DISC_PIN 8
#else
diff --git a/libmaple/usb/usb_hardware.c b/libmaple/usb/usb_hardware.c
index 505dcf1..9a7d12c 100644
--- a/libmaple/usb/usb_hardware.c
+++ b/libmaple/usb/usb_hardware.c
@@ -33,47 +33,6 @@
#include "usb_hardware.h"
-void setPin(u32 bank, u8 pin) {
- u32 pinMask = 0x1 << (pin);
- SET_REG(GPIO_BSRR(bank),pinMask);
-}
-
-void resetPin(u32 bank, u8 pin) {
- u32 pinMask = 0x1 << (16+pin);
- SET_REG(GPIO_BSRR(bank),pinMask);
-}
-
-void systemReset(void) {
- SET_REG(RCC_CR, GET_REG(RCC_CR) | 0x00000001);
- SET_REG(RCC_CFGR, GET_REG(RCC_CFGR) & 0xF8FF0000);
- SET_REG(RCC_CR, GET_REG(RCC_CR) & 0xFEF6FFFF);
- SET_REG(RCC_CR, GET_REG(RCC_CR) & 0xFFFBFFFF);
- SET_REG(RCC_CFGR, GET_REG(RCC_CFGR) & 0xFF80FFFF);
-
- SET_REG(RCC_CIR, 0x00000000); // disable all RCC interrupts
-}
-
-void setupCLK (void) {
- /* enable HSE */
- SET_REG(RCC_CR,GET_REG(RCC_CR) | 0x00010001);
- /* for it to come on */
- while ((GET_REG(RCC_CR) & 0x00020000) == 0);
-
- /* Configure PLL */
- /* pll=72Mhz,APB1=36Mhz,AHB=72Mhz */
- SET_REG(RCC_CFGR,GET_REG(RCC_CFGR) | 0x001D0400);
- /* enable the pll */
- SET_REG(RCC_CR,GET_REG(RCC_CR) | 0x01000000);
- /* wait for it to come on */
- while ((GET_REG(RCC_CR) & 0x03000000) == 0);
-
- /* Set SYSCLK as PLL */
- SET_REG(RCC_CFGR,GET_REG(RCC_CFGR) | 0x00000002);
- /* wait for it to come on */
- while ((GET_REG(RCC_CFGR) & 0x00000008) == 0);
-}
-
-
void nvicInit(NVIC_InitTypeDef* NVIC_InitStruct) {
u32 tmppriority = 0x00;
u32 tmpreg = 0x00;
diff --git a/libmaple/usb/usb_hardware.h b/libmaple/usb/usb_hardware.h
index e4a26b4..cfead1a 100644
--- a/libmaple/usb/usb_hardware.h
+++ b/libmaple/usb/usb_hardware.h
@@ -22,34 +22,20 @@
* THE SOFTWARE.
* ****************************************************************************/
-#ifndef __HARDWARE_H
-#define __HARDWARE_H
-
+#include "rcc.h"
#include "usb_type.h"
+#ifndef _USB_HARDWARE_H_
+#define _USB_HARDWARE_H_
+
/* macro'd register and peripheral definitions */
#define EXC_RETURN 0xFFFFFFF9
#define DEFAULT_CPSR 0x61000000
-#define RCC ((u32)0x40021000)
#define FLASH ((u32)0x40022000)
-#define GPIOA ((u32)0x40010800)
-#define GPIOC ((u32)0x40011000)
#define USB_PACKET_BUFFER ((u32)0x40006000)
-#define RCC_CR RCC
-#define RCC_CFGR RCC + 0x04
-#define RCC_CIR RCC + 0x08
-#define RCC_AHBENR RCC + 0x14
-#define RCC_APB2ENR RCC + 0x18
-#define RCC_APB1ENR RCC + 0x16
-
-#define GPIO_CRL(port) port
-#define GPIO_CRH(port) port+0x04
-#define GPIO_ODR(port) port+0x0c
-#define GPIO_BSRR(port) port+0x10
-
#define SCS_BASE ((u32)0xE000E000)
#define NVIC_BASE (SCS_BASE + 0x0100)
#define SCB_BASE (SCS_BASE + 0x0D00)
@@ -74,9 +60,8 @@
#define __PSC(__TIMCLK, __PERIOD) (((__VAL(__TIMCLK, __PERIOD)+49999UL)/50000UL) - 1)
#define __ARR(__TIMCLK, __PERIOD) ((__VAL(__TIMCLK, __PERIOD)/(__PSC(__TIMCLK, __PERIOD)+1)) - 1)
-/* todo, wrap in do whiles for the natural ; */
-#define SET_REG(addr,val) *(vu32*)(addr)=val
-#define GET_REG(addr) *(vu32*)(addr)
+#define SET_REG(addr,val) do { *(vu32*)(addr)=val; } while (0)
+#define GET_REG(addr) do { *(vu32*)(addr); } while (0)
#if defined(__cplusplus)
extern "C" {
@@ -85,7 +70,7 @@ extern "C" {
/* todo: there must be some major misunderstanding in how we access regs. The direct access approach (GET_REG)
causes the usb init to fail upon trying to activate RCC_APB1 |= 0x00800000. However, using the struct approach
from ST, it works fine...temporarily switching to that approach */
-typedef struct
+typedef struct
{
vu32 CR;
vu32 CFGR;
@@ -98,7 +83,7 @@ typedef struct
vu32 BDCR;
vu32 CSR;
} RCC_RegStruct;
-#define pRCC ((RCC_RegStruct *) RCC)
+#define pRCC ((RCC_RegStruct *) RCC_BASE)
typedef struct {
vu32 ISER[2];
@@ -139,12 +124,7 @@ typedef struct {
} SCB_TypeDef;
-void setPin (u32 bank, u8 pin);
-void resetPin (u32 bank, u8 pin);
-
void systemHardReset(void);
-void systemReset (void);
-void setupCLK (void);
void nvicInit (NVIC_InitTypeDef*);
void nvicDisableInterrupts(void);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 07:11:39 +0000