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stm32/usbdfu.c: Rearrange code to clarify the tasks to be done

This commit is contained in:
Uwe Bonnes 2013-02-03 14:14:48 +01:00
parent b1a942aca3
commit 31f39339fd
1 changed files with 40 additions and 30 deletions
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70
src/platforms/stm32/usbdfu.c
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@ -376,6 +376,7 @@ static int usbdfu_control_request(usbd_device *dev,
int main(void)
{
/* Check the force bootloader pin*/
#if defined (DISCOVERY_STLINK)
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
if(!gpio_get(GPIOC, GPIO13) && stlink_test_nrst()) {
@ -424,9 +425,22 @@ int main(void)
}
#endif
#if defined (DISCOVERY_STLINK)
/* Set up clock*/
#if defined (F4DISCOVERY)
rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(2100000);
#else
rcc_clock_setup_in_hse_8mhz_out_72mhz();
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(900000);
#endif
/* Handle USB disconnect/connect */
#if defined(DISCOVERY_STLINK)
/* Just in case: Disconnect USB cable by resetting USB Device
and pulling USB_DP low*/
* and pulling USB_DP low
* Device will reconnect automatically as Pull-Up is hard wired*/
rcc_peripheral_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
rcc_peripheral_clear_reset(&RCC_APB1RSTR, RCC_APB1ENR_USBEN);
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN);
@ -434,57 +448,53 @@ int main(void)
gpio_clear(GPIOA, GPIO12);
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_OPENDRAIN, GPIO12);
#endif
#if defined (F4DISCOVERY)
rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
#else
rcc_clock_setup_in_hse_8mhz_out_72mhz();
#endif
#if defined(DISCOVERY_STLINK)
#elif defined(F4DISCOVERY)
#elif defined (STM32_CAN)
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO0);
#elif defined(STM32_CAN)
#else
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO8);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO11);
#endif
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(2100000);
systick_interrupt_enable();
systick_counter_enable();
get_dev_unique_id(serial_no);
#if defined(STM32_CAN)
usbdev = usbd_init(&stm32f107_usb_driver,
&dev, &config, usb_strings, 4);
#elif defined(F4DISCOVERY)
/* Handle LEDs */
#if defined(F4DISCOVERY)
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN);
gpio_clear(GPIOD, GPIO12 | GPIO13 | GPIO14 |GPIO15);
gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
GPIO12 | GPIO13 | GPIO14 |GPIO15);
#elif defined (STM32_CAN)
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO0);
#else
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO11);
gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO2 | GPIO10);
#endif
/* Set up USB*/
#if defined(STM32_CAN)
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
usbdev = usbd_init(&stm32f107_usb_driver,
&dev, &config, usb_strings, 4);
#elif defined(STM32F2)||defined(STM32F4)
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
/* Set up USB Pins and alternate function*/
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE,
GPIO9 | GPIO11 | GPIO12);
gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO11 | GPIO12);
GPIO9 | GPIO10 | GPIO11 | GPIO12);
gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO10| GPIO11 | GPIO12);
usbdev = usbd_init(&stm32f107_usb_driver,
&dev, &config, usb_strings, 4);
#else
gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO2 | GPIO10);
usbdev = usbd_init(&stm32f103_usb_driver,
&dev, &config, usb_strings, 4);
#endif