Merge pull request #60 from themadinventor/lp-icdi-clean
Added (preliminary) support for TI TM4C123 Launchpad
This commit is contained in:
Gareth McMullin
commit
fdd7799304
20
src/lmi.c
20
src/lmi.c
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@ -38,7 +38,7 @@ static int lmi_flash_erase(struct target_s *target, uint32_t addr, int len);
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static int lmi_flash_write(struct target_s *target, uint32_t dest,
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const uint8_t *src, int len);
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static const char lmi_driver_str[] = "LuminaryMicro Stellaris";
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static const char lmi_driver_str[] = "TI Stellaris/Tiva";
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static const char lmi_xml_memory_map[] = "<?xml version=\"1.0\"?>"
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/* "<!DOCTYPE memory-map "
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@ -51,6 +51,17 @@ static const char lmi_xml_memory_map[] = "<?xml version=\"1.0\"?>"
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" <memory type=\"ram\" start=\"0x20000000\" length=\"0x10000\"/>"
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"</memory-map>";
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static const char tm4c123gh6pm_xml_memory_map[] = "<?xml version=\"1.0\"?>"
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/* "<!DOCTYPE memory-map "
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" PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
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" \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"*/
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"<memory-map>"
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" <memory type=\"flash\" start=\"0\" length=\"0x40000\">"
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" <property name=\"blocksize\">0x400</property>"
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" </memory>"
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" <memory type=\"ram\" start=\"0x20000000\" length=\"0x8000\"/>"
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"</memory-map>";
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uint16_t lmi_flash_write_stub[] = {
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// _start:
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@ -100,6 +111,13 @@ bool lmi_probe(struct target_s *target)
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target->flash_erase = lmi_flash_erase;
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target->flash_write = lmi_flash_write;
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return true;
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case 0x10A1: /* TM4C123GH6PM */
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target->driver = lmi_driver_str;
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target->xml_mem_map = tm4c123gh6pm_xml_memory_map;
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target->flash_erase = lmi_flash_erase;
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target->flash_write = lmi_flash_write;
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return true;
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}
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return false;
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}
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@ -0,0 +1,23 @@
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CROSS_COMPILE ?= arm-none-eabi-
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CC = $(CROSS_COMPILE)gcc
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OBJCOPY = $(CROSS_COMPILE)objcopy
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INCLUDES = -I../libopencm3/include
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CPU_FLAGS = -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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CFLAGS += $(INCLUDES) $(CPU_FLAGS) -DTARGET_IS_BLIZZARD_RB1 -DLM4F -DPART_TM4C123GH6PM
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LINKER_SCRIPT="platforms/tm4c/tm4c.ld"
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LDFLAGS = -nostartfiles -lc $(CPU_FLAGS) -nodefaultlibs -T$(LINKER_SCRIPT) -Wl,--gc-sections \
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-L../libopencm3/lib -lopencm3_lm4f -lnosys -lm -lgcc
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VPATH += platforms/tm4c
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SRC += cdcacm.c \
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usbuart.c \
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traceswo.o
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all: blackmagic.bin
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blackmagic.bin: blackmagic
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$(OBJCOPY) -O binary $^ $@
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@ -0,0 +1,86 @@
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#include "platform.h"
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#include "gdb_if.h"
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#include "usbuart.h"
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#include <libopencm3/lm4f/rcc.h>
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#include <libopencm3/lm4f/nvic.h>
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#include <libopencm3/lm4f/uart.h>
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#include <libopencm3/cm3/systick.h>
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#define SYSTICKHZ 100
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#define SYSTICKMS (1000 / SYSTICKHZ)
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#define PLL_DIV_80MHZ 5
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#define PLL_DIV_25MHZ 16
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extern void trace_tick(void);
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jmp_buf fatal_error_jmpbuf;
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uint8_t running_status;
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volatile uint32_t timeout_counter;
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const char *morse_msg;
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void morse(const char *msg, char repeat)
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{
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(void) msg;
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(void) repeat;
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}
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void sys_tick_handler(void)
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{
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if(timeout_counter)
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timeout_counter--;
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trace_tick();
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}
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int
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platform_init(void)
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{
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int i;
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for(i=0; i<1000000; i++);
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rcc_sysclk_config(OSCSRC_MOSC, XTAL_16M, PLL_DIV_80MHZ);
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// Enable all JTAG ports and set pins to output
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periph_clock_enable(RCC_GPIOA);
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periph_clock_enable(RCC_GPIOB);
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gpio_enable_ahb_aperture();
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gpio_mode_setup(TMS_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, TMS_PIN);
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gpio_mode_setup(TCK_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, TCK_PIN);
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gpio_mode_setup(TDI_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, TDI_PIN);
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gpio_mode_setup(TDO_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE, TDO_PIN);
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gpio_mode_setup(SRST_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, SRST_PIN);
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gpio_set_output_config(SRST_PORT, GPIO_OTYPE_OD, GPIO_DRIVE_2MA, SRST_PIN);
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gpio_set(SRST_PORT, SRST_PIN);
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systick_set_clocksource(STK_CSR_CLKSOURCE_AHB_DIV8);
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systick_set_reload(rcc_get_system_clock_frequency() / (SYSTICKHZ * 8));
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systick_interrupt_enable();
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systick_counter_enable();
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nvic_enable_irq(NVIC_SYSTICK_IRQ);
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nvic_enable_irq(NVIC_UART0_IRQ);
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usbuart_init();
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cdcacm_init();
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//jtag_scan(NULL);
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return 0;
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}
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void platform_delay(uint32_t delay)
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{
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timeout_counter = delay * 10;
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while(timeout_counter);
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}
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const char *platform_target_voltage(void)
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{
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return "not supported";
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}
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@ -0,0 +1,137 @@
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#ifndef __PLATFORM_H
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#define __PLATFORM_H
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#include <stdint.h>
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#include <setjmp.h>
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#include <alloca.h>
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#include <libopencm3/lm4f/gpio.h>
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#include <libopencm3/usb/usbd.h>
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#include "gdb_packet.h"
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#define CDCACM_PACKET_SIZE 64
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#define BOARD_IDENT "Black Magic Probe (Launchpad ICDI), (Firmware 1.5" VERSION_SUFFIX ", build " BUILDDATE ")"
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#define BOARD_IDENT_DFU "Black Magic (Upgrade) for Launchpad, (Firmware 1.5" VERSION_SUFFIX ", build " BUILDDATE ")"
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#define DFU_IDENT "Black Magic Firmware Upgrade (Launchpad)"
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#define DFU_IFACE_STRING "lolwut"
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extern usbd_device *usbdev;
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#define CDCACM_GDB_ENDPOINT 1
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#define CDCACM_UART_ENDPOINT 3
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extern jmp_buf fatal_error_jmpbuf;
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extern uint8_t running_status;
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extern const char *morse_msg;
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extern volatile uint32_t timeout_counter;
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#define TMS_PORT GPIOA_BASE
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#define TMS_PIN GPIO3
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#define TCK_PORT GPIOA_BASE
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#define TCK_PIN GPIO2
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#define TDI_PORT GPIOA_BASE
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#define TDI_PIN GPIO5
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#define TDO_PORT GPIOA_BASE
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#define TDO_PIN GPIO4
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#define SWO_PORT GPIOD_BASE
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#define SWO_PIN GPIO6
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#define SWDIO_PORT TMS_PORT
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#define SWDIO_PIN TMS_PIN
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#define SWCLK_PORT TCK_PORT
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#define SWCLK_PIN TCK_PIN
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#define SRST_PORT GPIOA_BASE
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#define SRST_PIN GPIO6
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#define TMS_SET_MODE() { \
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gpio_mode_setup(TMS_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, TMS_PIN); \
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gpio_set_output_config(TMS_PORT, GPIO_OTYPE_PP, GPIO_DRIVE_2MA, TMS_PIN); \
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}
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#define SWDIO_MODE_FLOAT() { \
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gpio_mode_setup(SWDIO_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE, SWDIO_PIN); \
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}
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#define SWDIO_MODE_DRIVE() { \
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gpio_mode_setup(SWDIO_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, SWDIO_PIN); \
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gpio_set_output_config(SWDIO_PORT, GPIO_OTYPE_PP, GPIO_DRIVE_2MA, SWDIO_PIN); \
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}
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extern usbd_driver lm4f_usb_driver;
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#define USB_DRIVER lm4f_usb_driver
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#define USB_IRQ NVIC_USB0_IRQ
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#define USB_ISR usb0_isr
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#define IRQ_PRI_USB (2 << 4)
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#define USBUART UART0
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#define USBUART_CLK RCC_UART0
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#define USBUART_IRQ NVIC_UART0_IRQ
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#define USBUART_ISR uart0_isr
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#define UART_PIN_SETUP() do { \
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periph_clock_enable(RCC_GPIOA); \
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__asm__("nop"); __asm__("nop"); __asm__("nop"); \
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gpio_set_af(GPIOA_BASE, 0x1, GPIO0 | GPIO1); \
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gpio_mode_setup(GPIOA_BASE, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO0); \
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gpio_mode_setup(GPIOA_BASE, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO1); \
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} while (0)
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#define TRACEUART UART2
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#define TRACEUART_CLK RCC_UART2
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#define TRACEUART_IRQ NVIC_UART2_IRQ
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#define TRACEUART_ISR uart2_isr
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/* Use newlib provided integer only stdio functions */
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#define sscanf siscanf
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#define sprintf siprintf
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#define vasprintf vasiprintf
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#define DEBUG(...)
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#define SET_RUN_STATE(state) {running_status = (state);}
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#define SET_IDLE_STATE(state) {}
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#define SET_ERROR_STATE(state) SET_IDLE_STATE(state)
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#define PLATFORM_SET_FATAL_ERROR_RECOVERY() {setjmp(fatal_error_jmpbuf);}
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#define PLATFORM_FATAL_ERROR(error) { \
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if( running_status ) gdb_putpacketz("X1D"); \
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else gdb_putpacketz("EFF"); \
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running_status = 0; \
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target_list_free(); \
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morse("TARGET LOST.", 1); \
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longjmp(fatal_error_jmpbuf, (error)); \
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}
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#define PLATFORM_HAS_TRACESWO
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int platform_init(void);
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void morse(const char *msg, char repeat);
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inline static void gpio_set_val(uint32_t port, uint8_t pin, uint8_t val) {
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gpio_write(port, pin, val == 0 ? 0 : 0xff);
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}
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inline static uint8_t gpio_get(uint32_t port, uint8_t pin) {
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return !(gpio_read(port, pin) == 0);
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}
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void platform_delay(uint32_t delay);
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const char *platform_target_voltage(void);
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/* <cdcacm.c> */
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void cdcacm_init(void);
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/* Returns current usb configuration, or 0 if not configured. */
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int cdcacm_get_config(void);
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int cdcacm_get_dtr(void);
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#define disconnect_usb() do { usbd_disconnect(usbdev,1); nvic_disable_irq(USB_IRQ);} while(0)
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#define setup_vbus_irq()
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#endif
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@ -0,0 +1,577 @@
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/*
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* This file is part of the Black Magic Debug project.
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*
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* Copyright (C) 2011 Black Sphere Technologies Ltd.
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* Written by Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
|
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*
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* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* This file implements a the USB Communications Device Class - Abstract
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* Control Model (CDC-ACM) as defined in CDC PSTN subclass 1.2.
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* A Device Firmware Upgrade (DFU 1.1) class interface is provided for
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* field firmware upgrade.
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*
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* The device's unique id is used as the USB serial number string.
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*/
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#include <libopencm3/cm3/nvic.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/cdc.h>
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#include <libopencm3/cm3/scb.h>
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#include <libopencm3/usb/dfu.h>
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#include <libopencm3/lm4f/rcc.h>
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#include <libopencm3/lm4f/usb.h>
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#include <stdlib.h>
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#include "platform.h"
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#include "gdb_if.h"
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#if defined(PLATFORM_HAS_TRACESWO)
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#include <traceswo.h>
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#endif
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#include <usbuart.h>
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#define DFU_IF_NO 4
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usbd_device * usbdev;
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static char *get_dev_unique_id(char *serial_no);
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static int configured;
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static int cdcacm_gdb_dtr = 1;
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static const struct usb_device_descriptor dev = {
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.bLength = USB_DT_DEVICE_SIZE,
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = 0xEF, /* Miscellaneous Device */
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.bDeviceSubClass = 2, /* Common Class */
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.bDeviceProtocol = 1, /* Interface Association */
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.bMaxPacketSize0 = 64,
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.idVendor = 0x1D50,
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.idProduct = 0x6018,
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.bcdDevice = 0x0100,
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.iManufacturer = 1,
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.iProduct = 2,
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.iSerialNumber = 3,
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.bNumConfigurations = 1,
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};
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/* This notification endpoint isn't implemented. According to CDC spec its
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* optional, but its absence causes a NULL pointer dereference in Linux cdc_acm
|
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* driver. */
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static const struct usb_endpoint_descriptor gdb_comm_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x82,
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.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
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.wMaxPacketSize = 16,
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.bInterval = 255,
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}};
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static const struct usb_endpoint_descriptor gdb_data_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x01,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}, {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x81,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = CDCACM_PACKET_SIZE,
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.bInterval = 1,
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}};
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static const struct {
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struct usb_cdc_header_descriptor header;
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struct usb_cdc_call_management_descriptor call_mgmt;
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struct usb_cdc_acm_descriptor acm;
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struct usb_cdc_union_descriptor cdc_union;
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} __attribute__((packed)) gdb_cdcacm_functional_descriptors = {
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.header = {
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.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
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.bcdCDC = 0x0110,
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},
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.call_mgmt = {
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.bFunctionLength =
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sizeof(struct usb_cdc_call_management_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
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.bmCapabilities = 0,
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.bDataInterface = 1,
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},
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.acm = {
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.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_ACM,
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.bmCapabilities = 2, /* SET_LINE_CODING supported */
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},
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.cdc_union = {
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.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_UNION,
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.bControlInterface = 0,
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.bSubordinateInterface0 = 1,
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}
|
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};
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static const struct usb_interface_descriptor gdb_comm_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_CDC,
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.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
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.bInterfaceProtocol = USB_CDC_PROTOCOL_AT,
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||||
.iInterface = 4,
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.endpoint = gdb_comm_endp,
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||||
|
||||
.extra = &gdb_cdcacm_functional_descriptors,
|
||||
.extralen = sizeof(gdb_cdcacm_functional_descriptors)
|
||||
}};
|
||||
|
||||
static const struct usb_interface_descriptor gdb_data_iface[] = {{
|
||||
.bLength = USB_DT_INTERFACE_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = 1,
|
||||
.bAlternateSetting = 0,
|
||||
.bNumEndpoints = 2,
|
||||
.bInterfaceClass = USB_CLASS_DATA,
|
||||
.bInterfaceSubClass = 0,
|
||||
.bInterfaceProtocol = 0,
|
||||
.iInterface = 0,
|
||||
|
||||
.endpoint = gdb_data_endp,
|
||||
}};
|
||||
|
||||
static const struct usb_iface_assoc_descriptor gdb_assoc = {
|
||||
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
||||
.bFirstInterface = 0,
|
||||
.bInterfaceCount = 2,
|
||||
.bFunctionClass = USB_CLASS_CDC,
|
||||
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
|
||||
.bFunctionProtocol = USB_CDC_PROTOCOL_AT,
|
||||
.iFunction = 0,
|
||||
};
|
||||
|
||||
/* Serial ACM interface */
|
||||
static const struct usb_endpoint_descriptor uart_comm_endp[] = {{
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
.bEndpointAddress = 0x84,
|
||||
.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
|
||||
.wMaxPacketSize = 16,
|
||||
.bInterval = 255,
|
||||
}};
|
||||
|
||||
static const struct usb_endpoint_descriptor uart_data_endp[] = {{
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
.bEndpointAddress = 0x03,
|
||||
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
|
||||
.wMaxPacketSize = CDCACM_PACKET_SIZE,
|
||||
.bInterval = 1,
|
||||
}, {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
.bEndpointAddress = 0x83,
|
||||
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
|
||||
.wMaxPacketSize = CDCACM_PACKET_SIZE,
|
||||
.bInterval = 1,
|
||||
}};
|
||||
|
||||
static const struct {
|
||||
struct usb_cdc_header_descriptor header;
|
||||
struct usb_cdc_call_management_descriptor call_mgmt;
|
||||
struct usb_cdc_acm_descriptor acm;
|
||||
struct usb_cdc_union_descriptor cdc_union;
|
||||
} __attribute__((packed)) uart_cdcacm_functional_descriptors = {
|
||||
.header = {
|
||||
.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
|
||||
.bDescriptorType = CS_INTERFACE,
|
||||
.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
|
||||
.bcdCDC = 0x0110,
|
||||
},
|
||||
.call_mgmt = {
|
||||
.bFunctionLength =
|
||||
sizeof(struct usb_cdc_call_management_descriptor),
|
||||
.bDescriptorType = CS_INTERFACE,
|
||||
.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
|
||||
.bmCapabilities = 0,
|
||||
.bDataInterface = 3,
|
||||
},
|
||||
.acm = {
|
||||
.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
|
||||
.bDescriptorType = CS_INTERFACE,
|
||||
.bDescriptorSubtype = USB_CDC_TYPE_ACM,
|
||||
.bmCapabilities = 2, /* SET_LINE_CODING supported*/
|
||||
},
|
||||
.cdc_union = {
|
||||
.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
|
||||
.bDescriptorType = CS_INTERFACE,
|
||||
.bDescriptorSubtype = USB_CDC_TYPE_UNION,
|
||||
.bControlInterface = 2,
|
||||
.bSubordinateInterface0 = 3,
|
||||
}
|
||||
};
|
||||
|
||||
static const struct usb_interface_descriptor uart_comm_iface[] = {{
|
||||
.bLength = USB_DT_INTERFACE_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = 2,
|
||||
.bAlternateSetting = 0,
|
||||
.bNumEndpoints = 1,
|
||||
.bInterfaceClass = USB_CLASS_CDC,
|
||||
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
|
||||
.bInterfaceProtocol = USB_CDC_PROTOCOL_AT,
|
||||
.iInterface = 5,
|
||||
|
||||
.endpoint = uart_comm_endp,
|
||||
|
||||
.extra = &uart_cdcacm_functional_descriptors,
|
||||
.extralen = sizeof(uart_cdcacm_functional_descriptors)
|
||||
}};
|
||||
|
||||
static const struct usb_interface_descriptor uart_data_iface[] = {{
|
||||
.bLength = USB_DT_INTERFACE_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = 3,
|
||||
.bAlternateSetting = 0,
|
||||
.bNumEndpoints = 2,
|
||||
.bInterfaceClass = USB_CLASS_DATA,
|
||||
.bInterfaceSubClass = 0,
|
||||
.bInterfaceProtocol = 0,
|
||||
.iInterface = 0,
|
||||
|
||||
.endpoint = uart_data_endp,
|
||||
}};
|
||||
|
||||
static const struct usb_iface_assoc_descriptor uart_assoc = {
|
||||
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
||||
.bFirstInterface = 2,
|
||||
.bInterfaceCount = 2,
|
||||
.bFunctionClass = USB_CLASS_CDC,
|
||||
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
|
||||
.bFunctionProtocol = USB_CDC_PROTOCOL_AT,
|
||||
.iFunction = 0,
|
||||
};
|
||||
|
||||
const struct usb_dfu_descriptor dfu_function = {
|
||||
.bLength = sizeof(struct usb_dfu_descriptor),
|
||||
.bDescriptorType = DFU_FUNCTIONAL,
|
||||
.bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH,
|
||||
.wDetachTimeout = 255,
|
||||
.wTransferSize = 1024,
|
||||
.bcdDFUVersion = 0x011A,
|
||||
};
|
||||
|
||||
const struct usb_interface_descriptor dfu_iface = {
|
||||
.bLength = USB_DT_INTERFACE_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = DFU_IF_NO,
|
||||
.bAlternateSetting = 0,
|
||||
.bNumEndpoints = 0,
|
||||
.bInterfaceClass = 0xFE,
|
||||
.bInterfaceSubClass = 1,
|
||||
.bInterfaceProtocol = 1,
|
||||
.iInterface = 6,
|
||||
|
||||
.extra = &dfu_function,
|
||||
.extralen = sizeof(dfu_function),
|
||||
};
|
||||
|
||||
static const struct usb_iface_assoc_descriptor dfu_assoc = {
|
||||
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
||||
.bFirstInterface = 4,
|
||||
.bInterfaceCount = 1,
|
||||
.bFunctionClass = 0xFE,
|
||||
.bFunctionSubClass = 1,
|
||||
.bFunctionProtocol = 1,
|
||||
.iFunction = 6,
|
||||
};
|
||||
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
static const struct usb_endpoint_descriptor trace_endp[] = {{
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
.bEndpointAddress = 0x85,
|
||||
.bmAttributes = USB_ENDPOINT_ATTR_BULK,
|
||||
.wMaxPacketSize = 64,
|
||||
.bInterval = 0,
|
||||
}};
|
||||
|
||||
const struct usb_interface_descriptor trace_iface = {
|
||||
.bLength = USB_DT_INTERFACE_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
.bInterfaceNumber = 5,
|
||||
.bAlternateSetting = 0,
|
||||
.bNumEndpoints = 1,
|
||||
.bInterfaceClass = 0xFF,
|
||||
.bInterfaceSubClass = 0xFF,
|
||||
.bInterfaceProtocol = 0xFF,
|
||||
.iInterface = 7,
|
||||
|
||||
.endpoint = trace_endp,
|
||||
};
|
||||
|
||||
static const struct usb_iface_assoc_descriptor trace_assoc = {
|
||||
.bLength = USB_DT_INTERFACE_ASSOCIATION_SIZE,
|
||||
.bDescriptorType = USB_DT_INTERFACE_ASSOCIATION,
|
||||
.bFirstInterface = 5,
|
||||
.bInterfaceCount = 1,
|
||||
.bFunctionClass = 0xFF,
|
||||
.bFunctionSubClass = 0xFF,
|
||||
.bFunctionProtocol = 0xFF,
|
||||
.iFunction = 7,
|
||||
};
|
||||
#endif
|
||||
|
||||
static const struct usb_interface ifaces[] = {{
|
||||
.num_altsetting = 1,
|
||||
.iface_assoc = &gdb_assoc,
|
||||
.altsetting = gdb_comm_iface,
|
||||
}, {
|
||||
.num_altsetting = 1,
|
||||
.altsetting = gdb_data_iface,
|
||||
}, {
|
||||
.num_altsetting = 1,
|
||||
.iface_assoc = &uart_assoc,
|
||||
.altsetting = uart_comm_iface,
|
||||
}, {
|
||||
.num_altsetting = 1,
|
||||
.altsetting = uart_data_iface,
|
||||
}, {
|
||||
.num_altsetting = 1,
|
||||
.iface_assoc = &dfu_assoc,
|
||||
.altsetting = &dfu_iface,
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
}, {
|
||||
.num_altsetting = 1,
|
||||
.iface_assoc = &trace_assoc,
|
||||
.altsetting = &trace_iface,
|
||||
#endif
|
||||
}};
|
||||
|
||||
static const struct usb_config_descriptor config = {
|
||||
.bLength = USB_DT_CONFIGURATION_SIZE,
|
||||
.bDescriptorType = USB_DT_CONFIGURATION,
|
||||
.wTotalLength = 0,
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
.bNumInterfaces = 6,
|
||||
#else
|
||||
.bNumInterfaces = 5,
|
||||
#endif
|
||||
.bConfigurationValue = 1,
|
||||
.iConfiguration = 0,
|
||||
.bmAttributes = 0x80,
|
||||
.bMaxPower = 0x32,
|
||||
|
||||
.interface = ifaces,
|
||||
};
|
||||
|
||||
char serial_no[9];
|
||||
|
||||
static const char *usb_strings[] = {
|
||||
"Black Sphere Technologies",
|
||||
BOARD_IDENT,
|
||||
serial_no,
|
||||
"Black Magic GDB Server",
|
||||
"Black Magic UART Port",
|
||||
DFU_IDENT,
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
"Black Magic Trace Capture",
|
||||
#endif
|
||||
};
|
||||
|
||||
static void dfu_detach_complete(usbd_device *dev, struct usb_setup_data *req)
|
||||
{
|
||||
(void)dev;
|
||||
(void)req;
|
||||
|
||||
/* Disconnect USB cable */
|
||||
disconnect_usb();
|
||||
|
||||
/* Assert boot-request pin */
|
||||
//assert_boot_pin();
|
||||
|
||||
/* Reset core to enter bootloader */
|
||||
scb_reset_core();
|
||||
}
|
||||
|
||||
static int cdcacm_control_request(usbd_device *dev,
|
||||
struct usb_setup_data *req, uint8_t **buf, uint16_t *len,
|
||||
void (**complete)(usbd_device *dev, struct usb_setup_data *req))
|
||||
{
|
||||
(void)dev;
|
||||
(void)complete;
|
||||
(void)buf;
|
||||
(void)len;
|
||||
|
||||
switch(req->bRequest) {
|
||||
case USB_CDC_REQ_SET_CONTROL_LINE_STATE:
|
||||
/* Ignore if not for GDB interface */
|
||||
if(req->wIndex != 0)
|
||||
return 1;
|
||||
|
||||
cdcacm_gdb_dtr = req->wValue & 1;
|
||||
|
||||
return 1;
|
||||
case USB_CDC_REQ_SET_LINE_CODING:
|
||||
if(*len < sizeof(struct usb_cdc_line_coding))
|
||||
return 0;
|
||||
|
||||
switch(req->wIndex) {
|
||||
case 2:
|
||||
usbuart_set_line_coding((struct usb_cdc_line_coding*)*buf);
|
||||
case 0:
|
||||
return 1; /* Ignore on GDB Port */
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
case DFU_GETSTATUS:
|
||||
if(req->wIndex == DFU_IF_NO) {
|
||||
(*buf)[0] = DFU_STATUS_OK;
|
||||
(*buf)[1] = 0;
|
||||
(*buf)[2] = 0;
|
||||
(*buf)[3] = 0;
|
||||
(*buf)[4] = STATE_APP_IDLE;
|
||||
(*buf)[5] = 0; /* iString not used here */
|
||||
*len = 6;
|
||||
|
||||
return 1;
|
||||
}
|
||||
case DFU_DETACH:
|
||||
if(req->wIndex == DFU_IF_NO) {
|
||||
*complete = dfu_detach_complete;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int cdcacm_get_config(void)
|
||||
{
|
||||
return configured;
|
||||
}
|
||||
|
||||
int cdcacm_get_dtr(void)
|
||||
{
|
||||
return cdcacm_gdb_dtr;
|
||||
}
|
||||
|
||||
static void cdcacm_set_config(usbd_device *dev, uint16_t wValue)
|
||||
{
|
||||
configured = wValue;
|
||||
|
||||
/* GDB interface */
|
||||
usbd_ep_setup(dev, 0x01, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, gdb_usb_out_cb);
|
||||
usbd_ep_setup(dev, 0x81, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, NULL);
|
||||
usbd_ep_setup(dev, 0x82, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
|
||||
|
||||
/* Serial interface */
|
||||
usbd_ep_setup(dev, 0x03, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, usbuart_usb_out_cb);
|
||||
usbd_ep_setup(dev, 0x83, USB_ENDPOINT_ATTR_BULK,
|
||||
CDCACM_PACKET_SIZE, usbuart_usb_in_cb);
|
||||
usbd_ep_setup(dev, 0x84, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);
|
||||
|
||||
#if defined(PLATFORM_HAS_TRACESWO)
|
||||
/* Trace interface */
|
||||
usbd_ep_setup(dev, 0x85, USB_ENDPOINT_ATTR_BULK,
|
||||
64, trace_buf_drain);
|
||||
#endif
|
||||
|
||||
usbd_register_control_callback(dev,
|
||||
USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE,
|
||||
USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
|
||||
cdcacm_control_request);
|
||||
|
||||
/* Notify the host that DCD is asserted.
|
||||
* Allows the use of /dev/tty* devices on *BSD/MacOS
|
||||
*/
|
||||
char buf[10];
|
||||
struct usb_cdc_notification *notif = (void*)buf;
|
||||
/* We echo signals back to host as notification */
|
||||
notif->bmRequestType = 0xA1;
|
||||
notif->bNotification = USB_CDC_NOTIFY_SERIAL_STATE;
|
||||
notif->wValue = 0;
|
||||
notif->wIndex = 0;
|
||||
notif->wLength = 2;
|
||||
buf[8] = 3; /* DCD | DSR */
|
||||
buf[9] = 0;
|
||||
usbd_ep_write_packet(dev, 0x82, buf, 10);
|
||||
notif->wIndex = 2;
|
||||
usbd_ep_write_packet(dev, 0x84, buf, 10);
|
||||
}
|
||||
|
||||
/* We need a special large control buffer for this device: */
|
||||
uint8_t usbd_control_buffer[256];
|
||||
|
||||
void cdcacm_init(void)
|
||||
{
|
||||
get_dev_unique_id(serial_no);
|
||||
|
||||
periph_clock_enable(RCC_GPIOD);
|
||||
__asm__("nop"); __asm__("nop"); __asm__("nop");
|
||||
gpio_mode_setup(GPIOD_BASE, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO4|GPIO5);
|
||||
|
||||
usbdev = usbd_init(&USB_DRIVER, &dev, &config, usb_strings,
|
||||
sizeof(usb_strings)/sizeof(char *),
|
||||
usbd_control_buffer, sizeof(usbd_control_buffer));
|
||||
|
||||
usbd_register_set_config_callback(usbdev, cdcacm_set_config);
|
||||
|
||||
usb_enable_interrupts(USB_INT_RESET|USB_INT_DISCON|USB_INT_RESUME|USB_INT_SUSPEND,
|
||||
0xff, 0xff);
|
||||
nvic_set_priority(USB_IRQ, IRQ_PRI_USB);
|
||||
nvic_enable_irq(USB_IRQ);
|
||||
setup_vbus_irq();
|
||||
}
|
||||
|
||||
void USB_ISR(void)
|
||||
{
|
||||
usbd_poll(usbdev);
|
||||
}
|
||||
|
||||
static char *get_dev_unique_id(char *s)
|
||||
{
|
||||
/* FIXME: Store a unique serial number somewhere and retreive here */
|
||||
uint32_t unique_id = 1;
|
||||
int i;
|
||||
|
||||
/* Fetch serial number from chip's unique ID */
|
||||
for(i = 0; i < 8; i++) {
|
||||
s[7-i] = ((unique_id >> (4*i)) & 0xF) + '0';
|
||||
}
|
||||
for(i = 0; i < 8; i++)
|
||||
if(s[i] > '9')
|
||||
s[i] += 'A' - '9' - 1;
|
||||
s[8] = 0;
|
||||
|
||||
return s;
|
||||
}
|
||||
|
|
@ -0,0 +1,100 @@
|
|||
/*
|
||||
* This file is part of the Black Magic Debug project.
|
||||
*
|
||||
* Copyright (C) 2011 Black Sphere Technologies Ltd.
|
||||
* Written by Gareth McMullin <gareth@blacksphere.co.nz>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/* This file implements a transparent channel over which the GDB Remote
|
||||
* Serial Debugging protocol is implemented. This implementation for STM32
|
||||
* uses the USB CDC-ACM device bulk endpoints to implement the channel.
|
||||
*/
|
||||
#include "platform.h"
|
||||
#include <libopencm3/usb/usbd.h>
|
||||
|
||||
#include "gdb_if.h"
|
||||
|
||||
static volatile uint32_t head_out, tail_out;
|
||||
static volatile uint32_t count_in;
|
||||
static volatile uint8_t buffer_out[16*CDCACM_PACKET_SIZE];
|
||||
static volatile uint8_t buffer_in[CDCACM_PACKET_SIZE];
|
||||
|
||||
void gdb_if_putchar(unsigned char c, int flush)
|
||||
{
|
||||
buffer_in[count_in++] = c;
|
||||
if(flush || (count_in == CDCACM_PACKET_SIZE)) {
|
||||
/* Refuse to send if USB isn't configured, and
|
||||
* don't bother if nobody's listening */
|
||||
if((cdcacm_get_config() != 1) || !cdcacm_get_dtr()) {
|
||||
count_in = 0;
|
||||
return;
|
||||
}
|
||||
while(usbd_ep_write_packet(usbdev, CDCACM_GDB_ENDPOINT,
|
||||
(uint8_t *)buffer_in, count_in) <= 0);
|
||||
count_in = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void gdb_usb_out_cb(usbd_device *dev, uint8_t ep)
|
||||
{
|
||||
(void)ep;
|
||||
static uint8_t buf[CDCACM_PACKET_SIZE];
|
||||
|
||||
usbd_ep_nak_set(dev, CDCACM_GDB_ENDPOINT, 1);
|
||||
uint32_t count = usbd_ep_read_packet(dev, CDCACM_GDB_ENDPOINT,
|
||||
(uint8_t *)buf, CDCACM_PACKET_SIZE);
|
||||
|
||||
|
||||
uint32_t idx;
|
||||
for (idx=0; idx<count; idx++) {
|
||||
buffer_out[head_out++ % sizeof(buffer_out)] = buf[idx];
|
||||
}
|
||||
|
||||
usbd_ep_nak_set(dev, CDCACM_GDB_ENDPOINT, 0);
|
||||
}
|
||||
|
||||
unsigned char gdb_if_getchar(void)
|
||||
{
|
||||
|
||||
while(tail_out == head_out) {
|
||||
/* Detach if port closed */
|
||||
if(!cdcacm_get_dtr())
|
||||
return 0x04;
|
||||
|
||||
while(cdcacm_get_config() != 1);
|
||||
}
|
||||
|
||||
return buffer_out[tail_out++ % sizeof(buffer_out)];
|
||||
}
|
||||
|
||||
unsigned char gdb_if_getchar_to(int timeout)
|
||||
{
|
||||
timeout_counter = timeout/100;
|
||||
|
||||
if(head_out == tail_out) do {
|
||||
/* Detach if port closed */
|
||||
if(!cdcacm_get_dtr())
|
||||
return 0x04;
|
||||
|
||||
while(cdcacm_get_config() != 1);
|
||||
} while(timeout_counter && head_out == tail_out);
|
||||
|
||||
if(head_out != tail_out)
|
||||
return gdb_if_getchar();
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,58 @@
|
|||
#include "jtagtap.h"
|
||||
|
||||
int
|
||||
jtagtap_init(void)
|
||||
{
|
||||
TMS_SET_MODE();
|
||||
|
||||
for(int i = 0; i <= 50; i++) jtagtap_next(1,0);
|
||||
jtagtap_tms_seq(0xE73C, 16);
|
||||
jtagtap_soft_reset();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
jtagtap_reset(void)
|
||||
{
|
||||
#ifdef TRST_PORT
|
||||
volatile int i;
|
||||
gpio_clear(TRST_PORT, TRST_PIN);
|
||||
for(i = 0; i < 10000; i++) asm("nop");
|
||||
gpio_set(TRST_PORT, TRST_PIN);
|
||||
#endif
|
||||
jtagtap_soft_reset();
|
||||
}
|
||||
|
||||
void
|
||||
jtagtap_srst(bool assert)
|
||||
{
|
||||
volatile int i;
|
||||
if (assert) {
|
||||
gpio_clear(SRST_PORT, SRST_PIN);
|
||||
for(i = 0; i < 10000; i++) asm("nop");
|
||||
} else {
|
||||
gpio_set(SRST_PORT, SRST_PIN);
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t
|
||||
jtagtap_next(const uint8_t dTMS, const uint8_t dTDO)
|
||||
{
|
||||
uint16_t ret;
|
||||
|
||||
gpio_set_val(TMS_PORT, TMS_PIN, dTMS);
|
||||
gpio_set_val(TDI_PORT, TDI_PIN, dTDO);
|
||||
gpio_set(TCK_PORT, TCK_PIN);
|
||||
ret = gpio_get(TDO_PORT, TDO_PIN);
|
||||
gpio_clear(TCK_PORT, TCK_PIN);
|
||||
|
||||
DEBUG("jtagtap_next(TMS = %d, TDO = %d) = %d\n", dTMS, dTDO, ret);
|
||||
|
||||
return ret != 0;
|
||||
}
|
||||
|
||||
#define PROVIDE_GENERIC_JTAGTAP_TMS_SEQ
|
||||
#define PROVIDE_GENERIC_JTAGTAP_TDI_TDO_SEQ
|
||||
#define PROVIDE_GENERIC_JTAGTAP_TDI_SEQ
|
||||
#include "jtagtap_generic.c"
|
||||
|
|
@ -0,0 +1,125 @@
|
|||
#include "general.h"
|
||||
#include "platform.h"
|
||||
#include "swdptap.h"
|
||||
|
||||
static void swdptap_turnaround(uint8_t dir)
|
||||
{
|
||||
static uint8_t olddir = 0;
|
||||
|
||||
DEBUG("%s", dir ? "\n-> ":"\n<- ");
|
||||
|
||||
/* Don't turnaround if direction not changing */
|
||||
if(dir == olddir) return;
|
||||
olddir = dir;
|
||||
|
||||
if(dir)
|
||||
SWDIO_MODE_FLOAT();
|
||||
gpio_set(SWCLK_PORT, SWCLK_PIN);
|
||||
gpio_clear(SWCLK_PORT, SWCLK_PIN);
|
||||
if(!dir)
|
||||
SWDIO_MODE_DRIVE();
|
||||
}
|
||||
|
||||
static uint8_t swdptap_bit_in(void)
|
||||
{
|
||||
uint16_t ret;
|
||||
|
||||
ret = gpio_get(SWDIO_PORT, SWDIO_PIN);
|
||||
gpio_set(SWCLK_PORT, SWCLK_PIN);
|
||||
gpio_clear(SWCLK_PORT, SWCLK_PIN);
|
||||
|
||||
DEBUG("%d", ret?1:0);
|
||||
|
||||
return ret != 0;
|
||||
}
|
||||
|
||||
static void swdptap_bit_out(uint8_t val)
|
||||
{
|
||||
DEBUG("%d", val);
|
||||
|
||||
gpio_set_val(SWDIO_PORT, SWDIO_PIN, val);
|
||||
gpio_set(SWCLK_PORT, SWCLK_PIN);
|
||||
gpio_clear(SWCLK_PORT, SWCLK_PIN);
|
||||
}
|
||||
|
||||
int
|
||||
swdptap_init(void)
|
||||
{
|
||||
swdptap_reset();
|
||||
swdptap_seq_out(0xE79E, 16); /* 0b0111100111100111 */
|
||||
swdptap_reset();
|
||||
swdptap_seq_out(0, 16);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
swdptap_reset(void)
|
||||
{
|
||||
swdptap_turnaround(0);
|
||||
/* 50 clocks with TMS high */
|
||||
for(int i = 0; i < 50; i++) swdptap_bit_out(1);
|
||||
}
|
||||
|
||||
uint32_t
|
||||
swdptap_seq_in(int ticks)
|
||||
{
|
||||
uint32_t index = 1;
|
||||
uint32_t ret = 0;
|
||||
|
||||
swdptap_turnaround(1);
|
||||
|
||||
while(ticks--) {
|
||||
if(swdptap_bit_in()) ret |= index;
|
||||
index <<= 1;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
uint8_t
|
||||
swdptap_seq_in_parity(uint32_t *ret, int ticks)
|
||||
{
|
||||
uint32_t index = 1;
|
||||
uint8_t parity = 0;
|
||||
*ret = 0;
|
||||
|
||||
swdptap_turnaround(1);
|
||||
|
||||
while(ticks--) {
|
||||
if(swdptap_bit_in()) {
|
||||
*ret |= index;
|
||||
parity ^= 1;
|
||||
}
|
||||
index <<= 1;
|
||||
}
|
||||
if(swdptap_bit_in()) parity ^= 1;
|
||||
|
||||
return parity;
|
||||
}
|
||||
|
||||
void
|
||||
swdptap_seq_out(uint32_t MS, int ticks)
|
||||
{
|
||||
swdptap_turnaround(0);
|
||||
|
||||
while(ticks--) {
|
||||
swdptap_bit_out(MS & 1);
|
||||
MS >>= 1;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
swdptap_seq_out_parity(uint32_t MS, int ticks)
|
||||
{
|
||||
uint8_t parity = 0;
|
||||
|
||||
swdptap_turnaround(0);
|
||||
|
||||
while(ticks--) {
|
||||
swdptap_bit_out(MS & 1);
|
||||
parity ^= MS;
|
||||
MS >>= 1;
|
||||
}
|
||||
swdptap_bit_out(parity & 1);
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/*
|
||||
* This file is part of the libopenstm32 project.
|
||||
*
|
||||
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/* Define memory regions. */
|
||||
MEMORY
|
||||
{
|
||||
rom (rx) : ORIGIN = 0x00000000, LENGTH = 256K
|
||||
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 32K
|
||||
}
|
||||
|
||||
/* Include the common ld script from libopenstm32. */
|
||||
INCLUDE libopencm3_lm4f.ld
|
||||
|
||||
|
|
@ -0,0 +1,165 @@
|
|||
/*
|
||||
* This file is part of the Black Magic Debug project.
|
||||
*
|
||||
* Copyright (C) 2012 Black Sphere Technologies Ltd.
|
||||
* Written by Gareth McMullin <gareth@blacksphere.co.nz>
|
||||
*
|
||||
* Copyright (C) 2014 Fredrik Ahlberg <fredrik@z80.se>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/* This file implements capture of the TRACESWO output.
|
||||
*
|
||||
* ARM DDI 0403D - ARMv7M Architecture Reference Manual
|
||||
* ARM DDI 0337I - Cortex-M3 Technical Reference Manual
|
||||
* ARM DDI 0314H - CoreSight Components Technical Reference Manual
|
||||
*/
|
||||
|
||||
#include "general.h"
|
||||
|
||||
#include <libopencm3/cm3/nvic.h>
|
||||
#include <libopencm3/lm4f/rcc.h>
|
||||
#include <libopencm3/lm4f/nvic.h>
|
||||
|
||||
#include <libopencm3/lm4f/uart.h>
|
||||
|
||||
#include <libopencm3/usb/usbd.h>
|
||||
|
||||
#include <string.h>
|
||||
#include "platform.h"
|
||||
|
||||
void traceswo_init(void)
|
||||
{
|
||||
periph_clock_enable(RCC_GPIOD);
|
||||
periph_clock_enable(TRACEUART_CLK);
|
||||
__asm__("nop"); __asm__("nop"); __asm__("nop");
|
||||
|
||||
gpio_mode_setup(SWO_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE, SWO_PIN);
|
||||
gpio_set_af(SWO_PORT, 1, SWO_PIN); /* U2RX */
|
||||
|
||||
uart_disable(TRACEUART);
|
||||
|
||||
/* Setup UART parameters. */
|
||||
uart_clock_from_sysclk(TRACEUART);
|
||||
uart_set_baudrate(TRACEUART, 800000);
|
||||
uart_set_databits(TRACEUART, 8);
|
||||
uart_set_stopbits(TRACEUART, 1);
|
||||
uart_set_parity(TRACEUART, UART_PARITY_NONE);
|
||||
|
||||
// Enable FIFO
|
||||
uart_enable_fifo(TRACEUART);
|
||||
|
||||
// Set FIFO interrupt trigger levels to 4/8 full for RX buffer and
|
||||
// 7/8 empty (1/8 full) for TX buffer
|
||||
uart_set_fifo_trigger_levels(TRACEUART, UART_FIFO_RX_TRIG_1_2, UART_FIFO_TX_TRIG_7_8);
|
||||
|
||||
uart_clear_interrupt_flag(TRACEUART, UART_INT_RX | UART_INT_RT);
|
||||
|
||||
/* Enable interrupts */
|
||||
uart_enable_interrupts(TRACEUART, UART_INT_RX | UART_INT_RT);
|
||||
|
||||
/* Finally enable the USART. */
|
||||
uart_enable(TRACEUART);
|
||||
|
||||
nvic_set_priority(TRACEUART_IRQ, 0);
|
||||
nvic_enable_irq(TRACEUART_IRQ);
|
||||
|
||||
/* Un-stall USB endpoint */
|
||||
usbd_ep_stall_set(usbdev, 0x85, 0);
|
||||
|
||||
gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO3);
|
||||
}
|
||||
|
||||
void traceswo_baud(unsigned int baud)
|
||||
{
|
||||
uart_set_baudrate(TRACEUART, baud);
|
||||
uart_set_databits(TRACEUART, 8);
|
||||
}
|
||||
|
||||
#define FIFO_SIZE 256
|
||||
|
||||
/* RX Fifo buffer */
|
||||
static volatile uint8_t buf_rx[FIFO_SIZE];
|
||||
/* Fifo in pointer, writes assumed to be atomic, should be only incremented within RX ISR */
|
||||
static volatile uint32_t buf_rx_in = 0;
|
||||
/* Fifo out pointer, writes assumed to be atomic, should be only incremented outside RX ISR */
|
||||
static volatile uint32_t buf_rx_out = 0;
|
||||
|
||||
void trace_buf_push(void)
|
||||
{
|
||||
size_t len;
|
||||
|
||||
if (buf_rx_in == buf_rx_out) {
|
||||
return;
|
||||
} else if (buf_rx_in > buf_rx_out) {
|
||||
len = buf_rx_in - buf_rx_out;
|
||||
} else {
|
||||
len = FIFO_SIZE - buf_rx_out;
|
||||
}
|
||||
|
||||
if (len > 64) {
|
||||
len = 64;
|
||||
}
|
||||
|
||||
if (usbd_ep_write_packet(usbdev, 0x85, (uint8_t *)&buf_rx[buf_rx_out], len) == len) {
|
||||
buf_rx_out += len;
|
||||
buf_rx_out %= FIFO_SIZE;
|
||||
}
|
||||
}
|
||||
|
||||
void trace_buf_drain(usbd_device *dev, uint8_t ep)
|
||||
{
|
||||
(void) dev;
|
||||
(void) ep;
|
||||
trace_buf_push();
|
||||
}
|
||||
|
||||
void trace_tick(void)
|
||||
{
|
||||
trace_buf_push();
|
||||
}
|
||||
|
||||
void TRACEUART_ISR(void)
|
||||
{
|
||||
uint32_t flush = uart_is_interrupt_source(TRACEUART, UART_INT_RT);
|
||||
|
||||
while (!uart_is_rx_fifo_empty(TRACEUART)) {
|
||||
uint32_t c = uart_recv(TRACEUART);
|
||||
|
||||
/* If the next increment of rx_in would put it at the same point
|
||||
* as rx_out, the FIFO is considered full.
|
||||
*/
|
||||
if (((buf_rx_in + 1) % FIFO_SIZE) != buf_rx_out)
|
||||
{
|
||||
/* insert into FIFO */
|
||||
buf_rx[buf_rx_in++] = c;
|
||||
|
||||
/* wrap out pointer */
|
||||
if (buf_rx_in >= FIFO_SIZE)
|
||||
{
|
||||
buf_rx_in = 0;
|
||||
}
|
||||
} else {
|
||||
flush = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (flush) {
|
||||
/* advance fifo out pointer by amount written */
|
||||
trace_buf_push();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,182 @@
|
|||
/*
|
||||
* This file is part of the Black Magic Debug project.
|
||||
*
|
||||
* Copyright (C) 2012 Black Sphere Technologies Ltd.
|
||||
* Written by Gareth McMullin <gareth@blacksphere.co.nz>
|
||||
*
|
||||
* Copyright (C) 2014 Fredrik Ahlberg <fredrik@z80.se>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <libopencm3/cm3/nvic.h>
|
||||
#include <libopencm3/cm3/scs.h>
|
||||
#include <libopencm3/usb/usbd.h>
|
||||
#include <libopencm3/usb/cdc.h>
|
||||
#include <libopencm3/lm4f/rcc.h>
|
||||
#include <libopencm3/lm4f/uart.h>
|
||||
|
||||
#include <platform.h>
|
||||
|
||||
#define FIFO_SIZE 128
|
||||
|
||||
/* RX Fifo buffer */
|
||||
static uint8_t buf_rx[FIFO_SIZE];
|
||||
/* Fifo in pointer, writes assumed to be atomic, should be only incremented within RX ISR */
|
||||
static uint8_t buf_rx_in;
|
||||
/* Fifo out pointer, writes assumed to be atomic, should be only incremented outside RX ISR */
|
||||
static uint8_t buf_rx_out;
|
||||
|
||||
void usbuart_init(void)
|
||||
{
|
||||
UART_PIN_SETUP();
|
||||
|
||||
periph_clock_enable(USBUART_CLK);
|
||||
__asm__("nop"); __asm__("nop"); __asm__("nop");
|
||||
|
||||
uart_disable(USBUART);
|
||||
|
||||
/* Setup UART parameters. */
|
||||
uart_clock_from_sysclk(USBUART);
|
||||
uart_set_baudrate(USBUART, 38400);
|
||||
uart_set_databits(USBUART, 8);
|
||||
uart_set_stopbits(USBUART, 1);
|
||||
uart_set_parity(USBUART, UART_PARITY_NONE);
|
||||
|
||||
// Enable FIFO
|
||||
uart_enable_fifo(USBUART);
|
||||
|
||||
// Set FIFO interrupt trigger levels to 1/8 full for RX buffer and
|
||||
// 7/8 empty (1/8 full) for TX buffer
|
||||
uart_set_fifo_trigger_levels(USBUART, UART_FIFO_RX_TRIG_1_8, UART_FIFO_TX_TRIG_7_8);
|
||||
|
||||
uart_clear_interrupt_flag(USBUART, UART_INT_RX | UART_INT_RT);
|
||||
|
||||
/* Enable interrupts */
|
||||
uart_enable_interrupts(UART0, UART_INT_RX| UART_INT_RT);
|
||||
|
||||
/* Finally enable the USART. */
|
||||
uart_enable(USBUART);
|
||||
|
||||
//nvic_set_priority(USBUSART_IRQ, IRQ_PRI_USBUSART);
|
||||
nvic_enable_irq(USBUART_IRQ);
|
||||
}
|
||||
|
||||
void usbuart_set_line_coding(struct usb_cdc_line_coding *coding)
|
||||
{
|
||||
uart_set_baudrate(USBUART, coding->dwDTERate);
|
||||
uart_set_databits(USBUART, coding->bDataBits);
|
||||
switch(coding->bCharFormat) {
|
||||
case 0:
|
||||
case 1:
|
||||
uart_set_stopbits(USBUART, 1);
|
||||
break;
|
||||
case 2:
|
||||
uart_set_stopbits(USBUART, 2);
|
||||
break;
|
||||
}
|
||||
switch(coding->bParityType) {
|
||||
case 0:
|
||||
uart_set_parity(USBUART, UART_PARITY_NONE);
|
||||
break;
|
||||
case 1:
|
||||
uart_set_parity(USBUART, UART_PARITY_ODD);
|
||||
break;
|
||||
case 2:
|
||||
uart_set_parity(USBUART, UART_PARITY_EVEN);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void usbuart_usb_out_cb(usbd_device *dev, uint8_t ep)
|
||||
{
|
||||
(void)ep;
|
||||
|
||||
char buf[CDCACM_PACKET_SIZE];
|
||||
int len = usbd_ep_read_packet(dev, CDCACM_UART_ENDPOINT,
|
||||
buf, CDCACM_PACKET_SIZE);
|
||||
|
||||
for(int i = 0; i < len; i++)
|
||||
uart_send_blocking(USBUART, buf[i]);
|
||||
}
|
||||
|
||||
|
||||
void usbuart_usb_in_cb(usbd_device *dev, uint8_t ep)
|
||||
{
|
||||
(void) dev;
|
||||
(void) ep;
|
||||
}
|
||||
|
||||
/*
|
||||
* Read a character from the UART RX and stuff it in a software FIFO.
|
||||
* Allowed to read from FIFO out pointer, but not write to it.
|
||||
* Allowed to write to FIFO in pointer.
|
||||
*/
|
||||
void USBUART_ISR(void)
|
||||
{
|
||||
int flush = uart_is_interrupt_source(USBUART, UART_INT_RT);
|
||||
|
||||
while (!uart_is_rx_fifo_empty(USBUART)) {
|
||||
char c = uart_recv(USBUART);
|
||||
|
||||
/* If the next increment of rx_in would put it at the same point
|
||||
* as rx_out, the FIFO is considered full.
|
||||
*/
|
||||
if (((buf_rx_in + 1) % FIFO_SIZE) != buf_rx_out)
|
||||
{
|
||||
/* insert into FIFO */
|
||||
buf_rx[buf_rx_in++] = c;
|
||||
|
||||
/* wrap out pointer */
|
||||
if (buf_rx_in >= FIFO_SIZE)
|
||||
{
|
||||
buf_rx_in = 0;
|
||||
}
|
||||
} else {
|
||||
flush = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (flush) {
|
||||
/* forcibly empty fifo if no USB endpoint */
|
||||
if (cdcacm_get_config() != 1)
|
||||
{
|
||||
buf_rx_out = buf_rx_in;
|
||||
return;
|
||||
}
|
||||
|
||||
uint8_t packet_buf[CDCACM_PACKET_SIZE];
|
||||
uint8_t packet_size = 0;
|
||||
uint8_t buf_out = buf_rx_out;
|
||||
|
||||
/* copy from uart FIFO into local usb packet buffer */
|
||||
while (buf_rx_in != buf_out && packet_size < CDCACM_PACKET_SIZE)
|
||||
{
|
||||
packet_buf[packet_size++] = buf_rx[buf_out++];
|
||||
|
||||
/* wrap out pointer */
|
||||
if (buf_out >= FIFO_SIZE)
|
||||
{
|
||||
buf_out = 0;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* advance fifo out pointer by amount written */
|
||||
buf_rx_out += usbd_ep_write_packet(usbdev,
|
||||
CDCACM_UART_ENDPOINT, packet_buf, packet_size);
|
||||
buf_rx_out %= FIFO_SIZE;
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue