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sam7fc
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rtos
Olaf Rempel 14 years ago
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1047706197
42 changed files with 6158 additions and 0 deletions
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  1. 1
      .gitignore
  2. 75
      Makefile
  3. 244
      at91_init0.s
  4. 81
      at91_init1.c
  5. 1918
      include/AT91SAM7S256.h
  6. 12
      include/at91_dbgu.h
  7. 20
      include/at91_pio.h
  8. 25
      include/at91_pitc.h
  9. 22
      include/at91_sysc.h
  10. 14
      include/at91_tc1.h
  11. 9
      include/at91_tests.h
  12. 57
      include/at91_twi.h
  13. 6
      include/at91_udp.h
  14. 26
      include/atomic.h
  15. 43
      include/board.h
  16. 28
      include/fifo.h
  17. 268
      include/list.h
  18. 9
      include/static_alloc.h
  19. 240
      include/usb_cdc.h
  20. 553
      include/usb_ch9.h
  21. 73
      include/usb_dfu.h
  22. 81
      ldscript.ld
  23. 98
      main.c
  24. 19
      scripts/download.sh
  25. 23
      scripts/gdb-thumb.cfg
  26. 23
      scripts/gdb.cfg
  27. 16
      scripts/openocd.cfg
  28. 99
      src/at91_adc.c
  29. 90
      src/at91_dbgu.c
  30. 162
      src/at91_exceptions.c
  31. 69
      src/at91_pio.c
  32. 90
      src/at91_pitc.c
  33. 34
      src/at91_rttc_test.c
  34. 154
      src/at91_sysc.c
  35. 110
      src/at91_tc1.c
  36. 241
      src/at91_twi.c
  37. 520
      src/at91_udp.c
  38. 192
      src/fifo.c
  39. 60
      src/static_alloc.c
  40. 286
      src/stdio/_putf.c
  41. 6
      src/stdio/_putf.h
  42. 61
      src/stdio/printf.c

1
.gitignore
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build

75
Makefile
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TOOLCHAIN = /opt/arm-toolchain
OPENOCD = /opt/arm-toolchain/openocd
AS = $(TOOLCHAIN)/bin/arm-elf-as
CC = $(TOOLCHAIN)/bin/arm-elf-gcc
LD = $(TOOLCHAIN)/bin/arm-elf-ld
NM = $(TOOLCHAIN)/bin/arm-elf-nm
SIZE = $(TOOLCHAIN)/bin/arm-elf-size
OBJCOPY = $(TOOLCHAIN)/bin/arm-elf-objcopy
OBJDUMP = $(TOOLCHAIN)/bin/arm-elf-objdump
INCDIRS = include $(TOOLCHAIN)/lib/gcc/arm-elf/4.1.1/include $(TOOLCHAIN)/arm-elf/include
LIBDIRS = $(TOOLCHAIN)/arm-elf/lib $(TOOLCHAIN)/lib/gcc/arm-elf/4.1.1
# ------
BUILD = build
TARGET = sam7fc
ASFLAGS = -mcpu=arm7tdmi -Wa,-adhlns=$(BUILD)/$(*D)/$(*F).lst,--gdwarf-2 -Iinclude
CFLAGS = -gdwarf-2 -mcpu=arm7tdmi -Os -std=gnu99
CFLAGS += -Wa,-adhlns=$(BUILD)/$(*D)/$(*F).lst
CFLAGS += -nostdinc $(patsubst %,-I%,$(INCDIRS))
CFLAGS += -MD -MP -MF $(BUILD)/.dep/$(*F).d
CFLAGS += -Wall
#CFLAGS += -Wextra
#CFLAGS += -Wcast-align -Wimplicit -Wunused
#CFLAGS += -Wpointer-arith -Wswitch
#CFLAGS += -Wredundant-decls -Wreturn-type -Wshadow
#CFLAGS += -Wbad-function-cast -Wsign-compare -Waggregate-return
#CFLAGS += -Wcast-qual -Wnested-externs
#CFLAGS += -Wmissing-prototypes
#CFLAGS += -Wstrict-prototypes -Wmissing-declarations
LDFLAGS = -nostartfiles -t ldscript.ld -Wl,-Map=$@.map,--cref
LDFLAGS += $(patsubst %,-L%,$(LIBDIRS))
LDFLAGS += -lc -lgcc
# ------
SRC := $(wildcard *.c) $(wildcard src/*.c) $(wildcard src/*/*.c)
AS_SRC := $(wildcard *.s) $(wildcard src/*.s)
all: $(BUILD)/$(TARGET).elf
@$(SIZE) -x $<
$(BUILD)/$(TARGET).elf: $(patsubst %,$(BUILD)/%,$(AS_SRC:.s=.o) $(SRC:.c=.o))
@echo " Linking file: $@"
@$(shell mkdir -p $(BUILD)/$(*D))
@$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
@$(OBJCOPY) -O binary $@ $@.bin
@$(OBJCOPY) -O ihex $@ $@.hex
@$(OBJDUMP) -h -S -C $@ > $@.lss
@$(NM) -n $@ > $@.sym
$(BUILD)/%.o: %.c
@echo " Building file: $<"
@$(shell mkdir -p $(BUILD)/$(*D))
@$(CC) -c $(CFLAGS) $< -o $@
$(BUILD)/%.o: %.s
@echo " Building file: $<"
@$(shell mkdir -p $(BUILD)/$(*D))
@$(CC) -c $(ASFLAGS) $< -o $@
clean:
rm -rf $(BUILD)
openocd:
$(shell $(OPENOCD) -f scripts/openocd.cfg)
-include $(shell mkdir -p $(BUILD)/.dep 2> /dev/null) $(wildcard $(BUILD)/.dep/*.d)

244
at91_init0.s
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/***************************************************************************
* Copyright (C) 01/2008 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* 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; version 2 of the License *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
.equ AIC_IVR, (256)
.equ AIC_FVR, (260)
.equ AIC_EOICR, (304)
.equ AT91C_BASE_AIC, (0xFFFFF000)
.equ IRQ_Stack_Size, (3 * 8 * 4)
.equ FIQ_Stack_Size, (3 * 8 * 4)
.equ ABT_Stack_Size, 192
.equ ARM_MODE_FIQ, 0x11
.equ ARM_MODE_IRQ, 0x12
.equ ARM_MODE_SVC, 0x13
.equ ARM_MODE_ABT, 0x17
.equ I_BIT, 0x80
.equ F_BIT, 0x40
.section .text
.global _start
.func _start
_start: ldr pc, [pc, #24] /* 0x00 Reset handler */
undefvec: ldr pc, [pc, #24] /* 0x04 Undefined Instruction */
swivec: ldr pc, [pc, #24] /* 0x08 Software Interrupt */
pabtvec: ldr pc, [pc, #24] /* 0x0C Prefetch Abort */
dabtvec: ldr pc, [pc, #24] /* 0x10 Data Abort */
rsvdvec: ldr pc, [pc, #24] /* 0x14 reserved */
irqvec: ldr pc, [pc, #24] /* 0x18 IRQ */
fiqvec: ldr pc, [pc, #24] /* 0x1c FIQ */
/* 0x80000000 will result in Prefetch Abort */
.word InitReset
.word 0x80000000
.word 0x80000000
.word ABT_Handler_Entry
.word ABT_Handler_Entry
.word 0x80000000
.word IRQ_Handler_Entry
.word FIQ_Handler_Entry
.endfunc
.global InitReset
.func InitReset
InitReset:
.extern at91_init1
/* Call Low level init function */
ldr sp,=__stack_top__
ldr r0,=at91_init1
mov lr, pc
bx r0
mov r0, sp
/* Setup FIQ Mode Stack */
msr CPSR_c, #ARM_MODE_FIQ | I_BIT | F_BIT
mov sp, r0
sub r0, r0, #FIQ_Stack_Size
/* store AIC Base in ARM_MODE_FIQ:r8 for faster access */
ldr r8, =AT91C_BASE_AIC
/* Setup IRQ Mode Stack */
msr CPSR_c, #ARM_MODE_IRQ | I_BIT | F_BIT
mov sp, r0
sub r0, r0, #IRQ_Stack_Size
/* Setup Abort Mode Stack */
msr CPSR_c, #ARM_MODE_ABT | I_BIT | F_BIT
mov sp, r0
sub r0, r0, #ABT_Stack_Size
/* Setup Supervisor Mode Stack (IRQ & NMI enabled) */
msr CPSR_c, #ARM_MODE_SVC
mov sp, r0
/* Relocate .data section */
ldr r1, =__text_end__
ldr r2, =__data_start__
ldr r3, =__data_end__
LoopRel: cmp r2, r3
ldrlo r0, [r1], #4
strlo r0, [r2], #4
blo LoopRel
/* Clear .bss section */
mov r0, #0
ldr r1, =__bss_start__
ldr r2, =__bss_end__
LoopZI: cmp r1, r2
strlo r0, [r1], #4
BLO LoopZI
/* Start main() */
ldr lr,=exit
ldr r0,=main
bx r0
.endfunc
.global exit
.func exit
/* exit dummy for newlib */
exit: b .
.endfunc
.global ABT_Handler_Entry
.func ABT_Handler_Entry
ABT_Handler_Entry:
/* disable interrupts (F_BIT not set on entry) */
msr CPSR_c, #ARM_MODE_ABT | I_BIT | F_BIT
/* store all registers */
stmfd sp!, { r0-r12 }
/* saved cpsr (from aborted mode) */
mrs r0, SPSR
/* address of abort (pc) */
mov r3, lr
/* enter previous mode and get lr(r14), sp(r13) */
/* TODO: interrupts might be enabled? */
/* TODO: thumb mode enabled? */
msr CPSR_c, r0
mov r1, sp
mov r2, lr
/* return to abort mode */
msr CPSR_c, #ARM_MODE_ABT | I_BIT | F_BIT
/* store remaining registers (r1-r3 == r13-r15) */
stmfd sp!, { r1-r3 }
mov r1, sp
/* execute C Handler (cpsr, registers) */
ldr r5,=at91_abt_handler
mov lr, pc
bx r5
b .
.endfunc
.global FIQ_Handler_Entry
.func FIQ_Handler_Entry
FIQ_Handler_Entry:
/* Save r0 to ARM_MODE_FIQ:r9 */
mov r9,r0
/* get FIQ Vector from AIC and thus clear FIQ */
ldr r0 , [r8, #AIC_FVR]
/* Switch to ARM_MODE_SVC and save registers there */
msr CPSR_c,#ARM_MODE_SVC | I_BIT | F_BIT
stmfd sp!, { r1-r3, r12, lr}
/* execute FIQ in SVC_MODE */
mov r14, pc
bx r0
/* restore registers and switch back to ARM_MODE_FIQ */
ldmia sp!, { r1-r3, r12, lr}
msr CPSR_c, #ARM_MODE_FIQ | I_BIT | F_BIT
/* restore the ARM_MODE_SVC:r0 */
mov r0,r9
/* restore PC using the LR_fiq directly */
subs pc,lr,#4
.endfunc
.global IRQ_Handler_Entry
.func IRQ_Handler_Entry
IRQ_Handler_Entry:
/*- Manage Exception Entry */
/*- Adjust and save LR_irq in IRQ stack */
sub lr, lr, #4
stmfd sp!, {lr}
/*- Save SPSR need to be saved for nested interrupt */
mrs r14, SPSR
stmfd sp!, {r14}
/*- Save and r0 in IRQ stack */
stmfd sp!, {r0}
/*- Write in the IVR to support Protect Mode */
/*- No effect in Normal Mode */
/*- De-assert the NIRQ and clear the source in Protect Mode */
ldr r14, =AT91C_BASE_AIC
ldr r0 , [r14, #AIC_IVR]
str r14, [r14, #AIC_IVR]
/*- Enable Interrupt and Switch in Supervisor Mode */
msr CPSR_c, #ARM_MODE_SVC
/*- Save scratch/used registers and LR in User Stack */
stmfd sp!, { r1-r3, r12, r14}
/*- Branch to the routine pointed by the AIC_IVR */
mov r14, pc
bx r0
/*- Restore scratch/used registers and LR from User Stack*/
ldmia sp!, { r1-r3, r12, r14}
/*- Disable Interrupt and switch back in IRQ mode */
msr CPSR_c, #ARM_MODE_IRQ | I_BIT
/*- Mark the End of Interrupt on the AIC */
ldr r14, =AT91C_BASE_AIC
str r14, [r14, #AIC_EOICR]
/*- Restore SPSR_irq and r0 from IRQ stack */
ldmia sp!, {r0}
/*- Restore SPSR_irq and r0 from IRQ stack */
ldmia sp!, {r14}
msr SPSR_cxsf, r14
/*- Restore adjusted LR_irq from IRQ stack directly in the PC */
ldmia sp!, {pc}^
.endfunc
.end

81
at91_init1.c
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/***************************************************************************
* Copyright (C) 01/2008 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* 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; version 2 of the License *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdint.h>
#include "AT91SAM7S256.h"
static void empty_isr(void) {}
/*
* Init critical onchip hardware:
* - disable Watchdog
* - enable Oscillator and PLL, switch to 48MHz MCK
* - set empty Interrupt Handlers
*/
void at91_init1(void)
{
/* disable watchdog */
*AT91C_WDTC_WDMR = AT91C_WDTC_WDDIS;
/* enable user reset */
*AT91C_RSTC_RMR = (AT91C_RSTC_KEY & 0xA5 << 24) | AT91C_RSTC_URSTEN;
/* Set Flash Waitstates */
*AT91C_MC_FMR = AT91C_MC_FWS_1FWS;
/*
* Enable main oscillator (MAINCK)
* startup time: 8*6/32768 -> 1.46ms
*/
AT91S_PMC *pmc = AT91C_BASE_PMC;
pmc->PMC_MOR = (AT91C_CKGR_OSCOUNT & (6<<8)) |
AT91C_CKGR_MOSCEN;
while (!(pmc->PMC_SR & AT91C_PMC_MOSCS));
/*
* PLLCK = 18.432MHz / 24 * 125 = 96MHz -> div:24, mul:124
* startup time: 32/32768 -> 976us
*/
pmc->PMC_PLLR = (AT91C_CKGR_DIV & 24) |
(AT91C_CKGR_MUL & (124<<16)) |
(AT91C_CKGR_PLLCOUNT & (32<<8)) ;
while (!(pmc->PMC_SR & AT91C_PMC_LOCK));
/* MCK = PLLCK / 2 = 48MHz */
pmc->PMC_MCKR = AT91C_PMC_CSS_PLL_CLK |
AT91C_PMC_PRES_CLK_2;
while (!(pmc->PMC_SR & AT91C_PMC_MCKRDY));
/* enable protected mode (let AIC work with debugger) */
AT91S_AIC *aic = AT91C_BASE_AIC;
aic->AIC_DCR = AT91C_AIC_DCR_PROT;
/* Disable & clear all Interrupts */
aic->AIC_IDCR = ~0;
aic->AIC_ICCR = ~0;
/* default Interrupt Handlers just return */
aic->AIC_FVR = (uint32_t)empty_isr;
aic->AIC_IVR = (uint32_t)empty_isr;
uint32_t i;
for (i = 0; i < 32; i++) {
aic->AIC_SMR[i] = 0;
aic->AIC_SVR[i] = (uint32_t)empty_isr;
}
aic->AIC_SPU = (uint32_t)empty_isr;
}

1918
include/AT91SAM7S256.h
File diff suppressed because it is too large
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12
include/at91_dbgu.h
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#ifndef AT91_DBGU_H_
#define AT91_DBGU_H_
#include <stddef.h>
void at91_dbgu_init(void);
void at91_dbgu_putc(char c);
void at91_dbgu_puts(const char *p);
int at91_dbgu_write(void *base, const char *buf, size_t len);
#endif /*AT91_DBGU_H_*/

20
include/at91_pio.h
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#ifndef AT91_PIO_H_
#define AT91_PIO_H_
#include <stdint.h>
struct pio_pinchange_isr {
uint32_t mask;
void (*func)(uint32_t status, uint32_t input);
};
#define PIO_PINCHANGE_ISR(mask, func) \
static struct pio_pinchange_isr \
__attribute__((used, section(".pio_isr"))) \
pio_isr_##func = { mask, &func };
void pio_trigger_isr(uint32_t mask);
void at91_pio_init(void);
#endif /*AT91_PIO_H_*/

25
include/at91_pitc.h
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#ifndef AT91_PITC_H_
#define AT91_PITC_H_
#include <stdint.h>
#include <stddef.h>
#include "list.h"
#define PITC_RESTART_TIMER 0
#define PITC_REMOVE_TIMER 1
struct pitc_timer {
struct list_head list;
uint32_t interval;
uint32_t nextrun;
uint32_t (*func)(struct pitc_timer *);
void *privdata;
};
void pitc_schedule_timer(struct pitc_timer *timer);
struct pitc_timer * alloc_pitc_timer(uint32_t interval, uint32_t (*func)(struct pitc_timer *), void *privdata);
uint32_t pitc_get_ticks(void);
void at91_pitc_init(void);
#endif /*AT91_PITC_H_*/

22
include/at91_sysc.h
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#ifndef AT91_SYSC_H_
#define AT91_SYSC_H_
#include <stdint.h>
enum syscirqs {
AT91_SYSIRQ_PIT = 0,
AT91_SYSIRQ_DBGU = 1,
AT91_SYSIRQ_EFC = 2,
AT91_SYSIRQ_WDT = 3,
AT91_SYSIRQ_RTT = 4,
AT91_SYSIRQ_RSTC = 5,
AT91_SYSIRQ_PMC = 6,
AT91_SYSIRQ_COUNT
};
typedef void SYSCISR(uint32_t status);
void at91_sysc_init(void);
void sysc_register_isr(enum syscirqs irq, SYSCISR *isr);
#endif /*AT91_SYSC_H_*/

14
include/at91_tc1.h
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#ifndef RC_PPM_H_
#define RC_PPM_H_
#define MAX_CHANNELS 8
struct rc_values {
int16_t ch[MAX_CHANNELS];
uint32_t count;
};
void at91_tc1_init(void);
uint32_t rc_ppm_getvalues(struct rc_values *rc);
#endif /*RC_PPM_H_*/

9
include/at91_tests.h
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#ifndef AT91_TESTS_H_
#define AT91_TESTS_H_
void at91_rttc_test_init(void);
void at91_adc_test_init(void);
void at91_adc_printresults(void);
#endif /*AT91_TESTS_H_*/

57
include/at91_twi.h
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#ifndef AT91TWI_H_
#define AT91TWI_H_
#include <list.h>
/* TWI slave addresses */
#define TWI_ADDR_BL1 0x21
#define TWI_ADDR_BL2 0x22
#define TWI_ADDR_BL3 0x23
#define TWI_ADDR_BL4 0x24
#define TWI_ADDR_EEPROM 0x40
/* TWIBOOT commands */
#define CMD_WAIT 0x00
#define CMD_GET_INFO 0x10
#define CMD_GET_SIGNATURE 0x11
#define CMD_WRITE_FLASH 0x12
#define CMD_READ_FLASH 0x13
#define CMD_WRITE_EEPROM 0x14
#define CMD_READ_EEPROM 0x15
#define CMD_BOOT_APPLICATION 0x1F
/* blctrl commands */
//#define CMD_WAIT 0x00
//#define CMD_GET_INFO 0x10
#define CMD_SET_PWM 0x21
#define CMD_GET_STATUS 0x22
//#define CMD_SET_PARAM 0x23
//#define CMD_GET_PARAM 0x24
#define CMD_BOOT_LOADER 0x2F
struct blmc_cmd {
uint32_t cmd; /* cmd byte(s) */
uint8_t mode; /* read/write, cmdlen (1-3 bytes) */
uint8_t size; /* data size */
uint8_t *data; /* read/write data */
};
/* same bits as TWI_MMR[8..15] */
#define BLMC_CMD_READ 0x10
#define BLMC_CMD_WRITE 0x00
#define BLMC_CMD_0_ARG 0x01
#define BLMC_CMD_1_ARG 0x02
#define BLMC_CMD_2_ARG 0x03
uint32_t twi_read_eeprom(uint32_t addr, uint8_t *buf, uint32_t size);
uint32_t twi_write_eeprom(uint32_t addr, uint8_t *buf, uint32_t size);
uint32_t twi_setpwm(uint8_t *values);
uint32_t twi_cmd(uint8_t addr, struct blmc_cmd *cmd);
void at91_twi_init(void);
void at91_twi_test(void);
#endif /*AT91TWI_H_*/

6
include/at91_udp.h
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#ifndef AT91_UDP_H_
#define AT91_UDP_H_
void at91_udp_init(void);
#endif /*AT91_UDP_H_*/

26
include/atomic.h
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#ifndef ATOMIC_H_
#define ATOMIC_H_
//TODO: not for thumbcode?!
#define disable_irqs() \
{ \
int temp_; \
asm volatile ( \
"mrs %0, cpsr" "\n\t" \
"stmfd sp!, {%0}" "\n\t" \
"orr %0, %0, #0xC0" "\n\t" \
"msr cpsr, %0" "\n\t" \
: "=r" (temp_) : ); \
}
#define restore_irqs() \
{ \
int temp_; \
asm volatile ( \
"ldmfd sp!, {%0}" "\n\t" \
"msr cpsr, %0" "\n\t" \
: "=r" (temp_) : ); \
}
#endif /*ATOMIC_H_*/

43
include/board.h
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#ifndef BOARD_H_
#define BOARD_H_
#include "AT91SAM7S256.h"
/* keep in sync with at91_init1.c */
#define MAINCK 18432000
#define PLLCK (MAINCK / 24 * 125) /* 96MHz */
#define MCK (PLLCK / 2) /* 48MHz */
/* DBGU UART Baudrate calculation */
#define BAUD_TO_DIV(BAUD) (MCK / (16 * BAUD))
/* LED PIOs */
#define LED_ORANGE AT91C_PIO_PA17
#define LED_GREEN AT91C_PIO_PA18
/* Taster PIOs */
#define TAST1 AT91C_PIO_PA19
#define TAST2 AT91C_PIO_PA20
/* USB PIOs */
#define UDP_VBUS_MON AT91C_PIO_PA24
#define UDP_PULLUP AT91C_PIO_PA25
/* ATMEL IDs */
#define USB_VENDOR_ID 0x03EB
#define USB_PRODUCT_ID 0x6124
/* Interrupt Priorities (7 = highest) */
#define IRQPRIO_SYSC 6 /* pitc */
#define IRQPRIO_PIOA 1 /* pinchange interrupts */
#define IRQPRIO_ADC 2
#define IRQPRIO_TWI 7 /* twi must be fast! */
#define IRQPRIO_UDP 4 /* usb */
#define IRQPRIO_TC1 5 /* ppm capturing */
/* TODO: find better place */
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x))
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif /*BOARD_H_*/

28
include/fifo.h
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#ifndef FIFO_H_
#define FIFO_H_
#include <stdint.h>
struct fifo {
uint32_t in;
uint32_t out;
uint16_t pdc_tx;
uint16_t pdc_rx;
uint32_t size;
char buf[0];
};
uint32_t fifo_put(struct fifo *fifo, const char *buf, uint32_t len);
uint32_t fifo_get(struct fifo *fifo, char *buf, uint32_t len);
uint32_t fifo_rxpdc(struct fifo *fifo, AT91S_PDC *pdc, uint16_t maxsize);
uint32_t fifo_txpdc(struct fifo *fifo, AT91S_PDC *pdc, uint16_t maxsize);
uint32_t fifo_putbyte(struct fifo *fifo, char c);
uint32_t fifo_getbyte(struct fifo *fifo, char *p);
struct fifo * fifo_alloc(uint32_t size);
#endif /*FIFO_H_*/

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include/list.h
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#ifndef _LIST_H_
#define _LIST_H_
/*
* stolen from linux kernel 2.6.11 (http://kernel.org/)
* linux/include/linux/stddef.h (offsetoff)
* linux/include/linux/kernel.h (container_of)
* linux/include/linux/list.h (*list*)
* linux/include/linux/netfilter_ipv4/listhelp.h (LIST_FIND)
*
* modified by Olaf Rempel <razzor@kopf-tisch.de>
*/
//#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
struct list_head {
struct list_head *next, *prev;
};
#define LIST_HEAD_INIT(name) { &(name), &(name) }
#define LIST_HEAD(name) \
struct list_head name = LIST_HEAD_INIT(name)
#define INIT_LIST_HEAD(ptr) do { \
(ptr)->next = (ptr); (ptr)->prev = (ptr); \
} while (0)
/*
* Insert a new entry between two known consecutive entries.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
static inline void __list_add(struct list_head *new,
struct list_head *prev,
struct list_head *next)
{
next->prev = new;
new->next = next;
new->prev = prev;
prev->next = new;
}
/*
* list_add - add a new entry
* @new: new entry to be added
* @head: list head to add it after
*
* Insert a new entry after the specified head.
* This is good for implementing stacks.
*/
static inline void list_add(struct list_head *new, struct list_head *head)
{
__list_add(new, head, head->next);
}
/*
* list_add_tail - add a new entry
* @new: new entry to be added
* @head: list head to add it before
*
* Insert a new entry before the specified head.
* This is useful for implementing queues.
*/
static inline void list_add_tail(struct list_head *new, struct list_head *head)
{
__list_add(new, head->prev, head);
}
/*
* Delete a list entry by making the prev/next entries
* point to each other.
*
* This is only for internal list manipulation where we know
* the prev/next entries already!
*/
static inline void __list_del(struct list_head * prev, struct list_head * next)
{
next->prev = prev;
prev->next = next;
}
/*
* list_del - deletes entry from list.
* @entry: the element to delete from the list.
* Note: list_empty on entry does not return true after this, the entry is
* in an undefined state.
*/
static inline void list_del(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
entry->next = NULL;
entry->prev = NULL;
}
/*
* list_del_init - deletes entry from list and reinitialize it.
* entry: the element to delete from the list.
*/
static inline void list_del_init(struct list_head *entry)
{
__list_del(entry->prev, entry->next);
INIT_LIST_HEAD(entry);
}
/*
* list_move - delete from one list and add as another's head
* @list: the entry to move
* @head: the head that will precede our entry
*/
static inline void list_move(struct list_head *list, struct list_head *head)
{
__list_del(list->prev, list->next);
list_add(list, head);
}
/*
* list_move_tail - delete from one list and add as another's tail
* @list: the entry to move
* @head: the head that will follow our entry
*/
static inline void list_move_tail(struct list_head *list,
struct list_head *head)
{
__list_del(list->prev, list->next);
list_add_tail(list, head);
}
/*
* list_empty - tests whether a list is empty
* @head: the list to test.
*/
static inline int list_empty(const struct list_head *head)
{
return head->next == head;
}
static inline void __list_splice(struct list_head *list,
struct list_head *head)
{
struct list_head *first = list->next;
struct list_head *last = list->prev;
struct list_head *at = head->next;
first->prev = head;
head->next = first;
last->next = at;
at->prev = last;
}
/*
* list_splice - join two lists
* @list: the new list to add.
* @head: the place to add it in the first list.
*/
static inline void list_splice(struct list_head *list, struct list_head *head)
{
if (!list_empty(list))
__list_splice(list, head);
}
/*
* list_splice_init - join two lists and reinitialise the emptied list.
* @list: the new list to add.
* @head: the place to add it in the first list.
*
* The list at @list is reinitialised
*/
static inline void list_splice_init(struct list_head *list,
struct list_head *head)
{
if (!list_empty(list)) {
__list_splice(list, head);
INIT_LIST_HEAD(list);
}
}
/*
* list_entry - get the struct for this entry
* @ptr: the &struct list_head pointer.
* @type: the type of the struct this is embedded in.
* @member: the name of the list_struct within the struct.
*/
#define list_entry(ptr, type, member) \
container_of(ptr, type, member)
/*
* list_for_each - iterate over a list
* @pos: the &struct list_head to use as a loop counter.
* @head: the head for your list.
*/
#define list_for_each(pos, head) \
for (pos = (head)->next; pos != (head); pos = pos->next)
/*
* list_for_each_prev - iterate over a list backwards
* @pos: the &struct list_head to use as a loop counter.
* @head: the head for your list.
*/
#define list_for_each_prev(pos, head) \
for (pos = (head)->prev; pos != (head); pos = pos->prev)
/*
* list_for_each_safe - iterate over a list safe against removal of list entry
* @pos: the &struct list_head to use as a loop counter.
* @n: another &struct list_head to use as temporary storage
* @head: the head for your list.
*/
#define list_for_each_safe(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
pos = n, n = pos->next)
/*
* list_for_each_entry - iterate over list of given type
* @pos: the type * to use as a loop counter.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*/
#define list_for_each_entry(pos, head, member) \
for (pos = list_entry((head)->next, typeof(*pos), member); \
&pos->member != (head); \
pos = list_entry(pos->member.next, typeof(*pos), member))
/*
* list_for_each_entry_reverse - iterate backwards over list of given type.
* @pos: the type * to use as a loop counter.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*/
#define list_for_each_entry_reverse(pos, head, member) \
for (pos = list_entry((head)->prev, typeof(*pos), member); \
&pos->member != (head); \
pos = list_entry(pos->member.prev, typeof(*pos), member))
/*
* list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
* @pos: the type * to use as a loop counter.
* @n: another type * to use as temporary storage
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*/
#define list_for_each_entry_safe(pos, n, head, member) \
for (pos = list_entry((head)->next, typeof(*pos), member), \
n = list_entry(pos->member.next, typeof(*pos), member); \
&pos->member != (head); \
pos = n, n = list_entry(n->member.next, typeof(*n), member))
/* Return pointer to first true entry, if any, or NULL. A macro
required to allow inlining of cmpfn. */
#define LIST_FIND(head, cmpfn, type, args...) \
({ \
const struct list_head *__i, *__j = NULL; \
\
list_for_each(__i, (head)) \
if (cmpfn((const type)__i , ## args)) { \
__j = __i; \
break; \
} \
(type)__j; \
})
#endif /* _LIST_H_ */

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include/static_alloc.h
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#ifndef STATIC_ALLOC_H_
#define STATIC_ALLOC_H_
void * static_alloc(uint32_t size);
uint32_t static_alloc_used(void);
uint32_t next_powerof2(uint32_t value);
#endif /*STATIC_ALLOC_H_*/

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include/usb_cdc.h
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#ifndef USB_CDC_H_
#define USB_CDC_H_
#include <stdint.h>
/*
* the content of this file comes from
* - linux/include/linux/usb/cdc.h
* with minor modifications:
* - type conversion (e.g. __u8 -> uint8_t)
*/
/*-------------------------------------------------------------------------*/
/*
* USB Communications Device Class (CDC) definitions
*
* CDC says how to talk to lots of different types of network adapters,
* notably ethernet adapters and various modems. It's used mostly with
* firmware based USB peripherals.
*/
#define USB_CDC_SUBCLASS_ACM 0x02
#define USB_CDC_SUBCLASS_ETHERNET 0x06
#define USB_CDC_SUBCLASS_WHCM 0x08
#define USB_CDC_SUBCLASS_DMM 0x09
#define USB_CDC_SUBCLASS_MDLM 0x0a
#define USB_CDC_SUBCLASS_OBEX 0x0b
#define USB_CDC_PROTO_NONE 0
#define USB_CDC_ACM_PROTO_AT_V25TER 1
#define USB_CDC_ACM_PROTO_AT_PCCA101 2
#define USB_CDC_ACM_PROTO_AT_PCCA101_WAKE 3
#define USB_CDC_ACM_PROTO_AT_GSM 4
#define USB_CDC_ACM_PROTO_AT_3G 5
#define USB_CDC_ACM_PROTO_AT_CDMA 6
#define USB_CDC_ACM_PROTO_VENDOR 0xff
/*-------------------------------------------------------------------------*/
/*
* Class-Specific descriptors ... there are a couple dozen of them
*/
#define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
#define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
#define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
#define USB_CDC_UNION_TYPE 0x06 /* union_desc */
#define USB_CDC_COUNTRY_TYPE 0x07
#define USB_CDC_NETWORK_TERMINAL_TYPE 0x0a /* network_terminal_desc */
#define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
#define USB_CDC_WHCM_TYPE 0x11
#define USB_CDC_MDLM_TYPE 0x12 /* mdlm_desc */
#define USB_CDC_MDLM_DETAIL_TYPE 0x13 /* mdlm_detail_desc */
#define USB_CDC_DMM_TYPE 0x14
#define USB_CDC_OBEX_TYPE 0x15
/* "Header Functional Descriptor" from CDC spec 5.2.3.1 */
struct usb_cdc_header_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t bcdCDC;
} __attribute__ ((packed));
/* "Call Management Descriptor" from CDC spec 5.2.3.2 */
struct usb_cdc_call_mgmt_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bmCapabilities;
#define USB_CDC_CALL_MGMT_CAP_CALL_MGMT 0x01
#define USB_CDC_CALL_MGMT_CAP_DATA_INTF 0x02
uint8_t bDataInterface;
} __attribute__ ((packed));
/* "Abstract Control Management Descriptor" from CDC spec 5.2.3.3 */
struct usb_cdc_acm_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bmCapabilities;
} __attribute__ ((packed));
/* capabilities from 5.2.3.3 */
#define USB_CDC_COMM_FEATURE 0x01
#define USB_CDC_CAP_LINE 0x02
#define USB_CDC_CAP_BRK 0x04
#define USB_CDC_CAP_NOTIFY 0x08
/* "Union Functional Descriptor" from CDC spec 5.2.3.8 */
struct usb_cdc_union_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bMasterInterface0;
uint8_t bSlaveInterface0;
/* ... and there could be other slave interfaces */
} __attribute__ ((packed));
/* "Country Selection Functional Descriptor" from CDC spec 5.2.3.9 */
struct usb_cdc_country_functional_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t iCountryCodeRelDate;
uint16_t wCountyCode0;
/* ... and there can be a lot of country codes */
} __attribute__ ((packed));
/* "Network Channel Terminal Functional Descriptor" from CDC spec 5.2.3.11 */
struct usb_cdc_network_terminal_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bEntityId;
uint8_t iName;
uint8_t bChannelIndex;
uint8_t bPhysicalInterface;
} __attribute__ ((packed));
/* "Ethernet Networking Functional Descriptor" from CDC spec 5.2.3.16 */
struct usb_cdc_ether_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t iMACAddress;
uint32_t bmEthernetStatistics;
uint16_t wMaxSegmentSize;
uint16_t wNumberMCFilters;
uint8_t bNumberPowerFilters;
} __attribute__ ((packed));
/* "MDLM Functional Descriptor" from CDC WMC spec 6.7.2.3 */
struct usb_cdc_mdlm_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t bcdVersion;
uint8_t bGUID[16];
} __attribute__ ((packed));
/* "MDLM Detail Functional Descriptor" from CDC WMC spec 6.7.2.4 */
struct usb_cdc_mdlm_detail_desc {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
/* type is associated with mdlm_desc.bGUID */
uint8_t bGuidDescriptorType;
uint8_t bDetailData[0];
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/*
* Class-Specific Control Requests (6.2)
*
* section 3.6.2.1 table 4 has the ACM profile, for modems.
* section 3.8.2 table 10 has the ethernet profile.
*
* Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant,
* heavily dependent on the encapsulated (proprietary) command mechanism.
*/
#define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
#define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
#define USB_CDC_REQ_SET_LINE_CODING 0x20
#define USB_CDC_REQ_GET_LINE_CODING 0x21
#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
#define USB_CDC_REQ_SEND_BREAK 0x23
#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
#define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
#define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
#define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
#define USB_CDC_GET_ETHERNET_STATISTIC 0x44
/* Line Coding Structure from CDC spec 6.2.13 */
struct usb_cdc_line_coding {
uint32_t dwDTERate;
uint8_t bCharFormat;
#define USB_CDC_1_STOP_BITS 0
#define USB_CDC_1_5_STOP_BITS 1
#define USB_CDC_2_STOP_BITS 2
uint8_t bParityType;
#define USB_CDC_NO_PARITY 0
#define USB_CDC_ODD_PARITY 1
#define USB_CDC_EVEN_PARITY 2
#define USB_CDC_MARK_PARITY 3
#define USB_CDC_SPACE_PARITY 4
uint8_t bDataBits;
} __attribute__ ((packed));
/* table 62; bits in multicast filter */
#define USB_CDC_PACKET_TYPE_PROMISCUOUS (1 << 0)
#define USB_CDC_PACKET_TYPE_ALL_MULTICAST (1 << 1) /* no filter */
#define USB_CDC_PACKET_TYPE_DIRECTED (1 << 2)
#define USB_CDC_PACKET_TYPE_BROADCAST (1 << 3)
#define USB_CDC_PACKET_TYPE_MULTICAST (1 << 4) /* filtered */
/*-------------------------------------------------------------------------*/
/*
* Class-Specific Notifications (6.3) sent by interrupt transfers
*
* section 3.8.2 table 11 of the CDC spec lists Ethernet notifications
* section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS
* RNDIS also defines its own bit-incompatible notifications
*/
#define USB_CDC_NOTIFY_NETWORK_CONNECTION 0x00
#define USB_CDC_NOTIFY_RESPONSE_AVAILABLE 0x01
#define USB_CDC_NOTIFY_SERIAL_STATE 0x20
#define USB_CDC_NOTIFY_SPEED_CHANGE 0x2a
struct usb_cdc_notification {
uint8_t bmRequestType;
uint8_t bNotificationType;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
#endif /*USB_CDC_H_*/

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include/usb_ch9.h
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#ifndef USB_CH9_H_
#define USB_CH9_H_
#include <stdint.h>
/*
* the content of this file comes from
* - linux/include/linux/usb/ch9.h
* with minor modifications:
* - type conversion (e.g. __u8 -> uint8_t)
* - usb_endpoint_descriptor: removed last 2 bytes
*/
/*-------------------------------------------------------------------------*/
/* CONTROL REQUEST SUPPORT */
/*
* USB directions
*
* This bit flag is used in endpoint descriptors' bEndpointAddress field.
* It's also one of three fields in control requests bRequestType.
*/
#define USB_DIR_OUT 0 /* to device */
#define USB_DIR_IN 0x80 /* to host */
/*
* USB types, the second of three bRequestType fields
*/
#define USB_TYPE_MASK (0x03 << 5)
#define USB_TYPE_STANDARD (0x00 << 5)
#define USB_TYPE_CLASS (0x01 << 5)
#define USB_TYPE_VENDOR (0x02 << 5)
#define USB_TYPE_RESERVED (0x03 << 5)
/*
* USB recipients, the third of three bRequestType fields
*/
#define USB_RECIP_MASK 0x1f
#define USB_RECIP_DEVICE 0x00
#define USB_RECIP_INTERFACE 0x01
#define USB_RECIP_ENDPOINT 0x02
#define USB_RECIP_OTHER 0x03
/* From Wireless USB 1.0 */
#define USB_RECIP_PORT 0x04
#define USB_RECIP_RPIPE 0x05
/*
* Standard requests, for the bRequest field of a SETUP packet.
*
* These are qualified by the bRequestType field, so that for example
* TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
* by a GET_STATUS request.
*/
#define USB_REQ_GET_STATUS 0x00
#define USB_REQ_CLEAR_FEATURE 0x01
#define USB_REQ_SET_FEATURE 0x03
#define USB_REQ_SET_ADDRESS 0x05
#define USB_REQ_GET_DESCRIPTOR 0x06
#define USB_REQ_SET_DESCRIPTOR 0x07
#define USB_REQ_GET_CONFIGURATION 0x08
#define USB_REQ_SET_CONFIGURATION 0x09
#define USB_REQ_GET_INTERFACE 0x0A
#define USB_REQ_SET_INTERFACE 0x0B
#define USB_REQ_SYNCH_FRAME 0x0C
#define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */
#define USB_REQ_GET_ENCRYPTION 0x0E
#define USB_REQ_RPIPE_ABORT 0x0E
#define USB_REQ_SET_HANDSHAKE 0x0F
#define USB_REQ_RPIPE_RESET 0x0F
#define USB_REQ_GET_HANDSHAKE 0x10
#define USB_REQ_SET_CONNECTION 0x11
#define USB_REQ_SET_SECURITY_DATA 0x12
#define USB_REQ_GET_SECURITY_DATA 0x13
#define USB_REQ_SET_WUSB_DATA 0x14
#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
#define USB_REQ_LOOPBACK_DATA_READ 0x16
#define USB_REQ_SET_INTERFACE_DS 0x17
/*
* USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
* are read as a bit array returned by USB_REQ_GET_STATUS. (So there
* are at most sixteen features of each type.)
*/
#define USB_DEVICE_SELF_POWERED 0 /* (read only) */
#define USB_DEVICE_REMOTE_WAKEUP 1 /* dev may initiate wakeup */
#define USB_DEVICE_TEST_MODE 2 /* (wired high speed only) */
#define USB_DEVICE_BATTERY 2 /* (wireless) */
#define USB_DEVICE_B_HNP_ENABLE 3 /* (otg) dev may initiate HNP */
#define USB_DEVICE_WUSB_DEVICE 3 /* (wireless)*/
#define USB_DEVICE_A_HNP_SUPPORT 4 /* (otg) RH port supports HNP */
#define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */
#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
#define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */
/**
* struct usb_ctrlrequest - SETUP data for a USB device control request
* @bRequestType: matches the USB bmRequestType field
* @bRequest: matches the USB bRequest field
* @wValue: matches the USB wValue field (le16 byte order)
* @wIndex: matches the USB wIndex field (le16 byte order)
* @wLength: matches the USB wLength field (le16 byte order)
*
* This structure is used to send control requests to a USB device. It matches
* the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the
* USB spec for a fuller description of the different fields, and what they are
* used for.
*
* Note that the driver for any interface can issue control requests.
* For most devices, interfaces don't coordinate with each other, so
* such requests may be made at any time.
*/
struct usb_ctrlrequest {
uint8_t bRequestType;
uint8_t bRequest;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/*
* STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
* (rarely) accepted by SET_DESCRIPTOR.
*
* Note that all multi-byte values here are encoded in little endian
* byte order "on the wire". But when exposed through Linux-USB APIs,
* they've been converted to cpu byte order.
*/
/*
* Descriptor types ... USB 2.0 spec table 9.5
*/
#define USB_DT_DEVICE 0x01
#define USB_DT_CONFIG 0x02
#define USB_DT_STRING 0x03
#define USB_DT_INTERFACE 0x04
#define USB_DT_ENDPOINT 0x05
#define USB_DT_DEVICE_QUALIFIER 0x06
#define USB_DT_OTHER_SPEED_CONFIG 0x07
#define USB_DT_INTERFACE_POWER 0x08
/* these are from a minor usb 2.0 revision (ECN) */
#define USB_DT_OTG 0x09
#define USB_DT_DEBUG 0x0a
#define USB_DT_INTERFACE_ASSOCIATION 0x0b
/* these are from the Wireless USB spec */
#define USB_DT_SECURITY 0x0c
#define USB_DT_KEY 0x0d
#define USB_DT_ENCRYPTION_TYPE 0x0e
#define USB_DT_BOS 0x0f
#define USB_DT_DEVICE_CAPABILITY 0x10
#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
#define USB_DT_WIRE_ADAPTER 0x21
#define USB_DT_RPIPE 0x22
/* Conventional codes for class-specific descriptors. The convention is
* defined in the USB "Common Class" Spec (3.11). Individual class specs
* are authoritative for their usage, not the "common class" writeup.
*/
#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
/* All standard descriptors have these 2 fields at the beginning */
struct usb_descriptor_header {
uint8_t bLength;
uint8_t bDescriptorType;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE: Device descriptor */
struct usb_device_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdUSB;
uint8_t bDeviceClass;
uint8_t bDeviceSubClass;
uint8_t bDeviceProtocol;
uint8_t bMaxPacketSize0;
uint16_t idVendor;
uint16_t idProduct;
uint16_t bcdDevice;
uint8_t iManufacturer;
uint8_t iProduct;
uint8_t iSerialNumber;
uint8_t bNumConfigurations;
} __attribute__ ((packed));
#define USB_DT_DEVICE_SIZE 18
/*
* Device and/or Interface Class codes
* as found in bDeviceClass or bInterfaceClass
* and defined by www.usb.org documents
*/
#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
#define USB_CLASS_AUDIO 1
#define USB_CLASS_COMM 2
#define USB_CLASS_HID 3
#define USB_CLASS_PHYSICAL 5
#define USB_CLASS_STILL_IMAGE 6
#define USB_CLASS_PRINTER 7
#define USB_CLASS_MASS_STORAGE 8
#define USB_CLASS_HUB 9
#define USB_CLASS_CDC_DATA 0x0a
#define USB_CLASS_CSCID 0x0b /* chip+ smart card */
#define USB_CLASS_CONTENT_SEC 0x0d /* content security */
#define USB_CLASS_VIDEO 0x0e
#define USB_CLASS_WIRELESS_CONTROLLER 0xe0
#define USB_CLASS_MISC 0xef
#define USB_CLASS_APP_SPEC 0xfe
#define USB_CLASS_VENDOR_SPEC 0xff
/*-------------------------------------------------------------------------*/
/* USB_DT_CONFIG: Configuration descriptor information.
*
* USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
* descriptor type is different. Highspeed-capable devices can look
* different depending on what speed they're currently running. Only
* devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
* descriptors.
*/
struct usb_config_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumInterfaces;
uint8_t bConfigurationValue;
uint8_t iConfiguration;
uint8_t bmAttributes;
uint8_t bMaxPower;
} __attribute__ ((packed));
#define USB_DT_CONFIG_SIZE 9
/* from config descriptor bmAttributes */
#define USB_CONFIG_ATT_ONE (1 << 7) /* must be set */
#define USB_CONFIG_ATT_SELFPOWER (1 << 6) /* self powered */
#define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */
#define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */
/*-------------------------------------------------------------------------*/
/* USB_DT_STRING: String descriptor */
struct usb_string_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wData[1]; /* UTF-16LE encoded */
} __attribute__ ((packed));
/* note that "string" zero is special, it holds language codes that
* the device supports, not Unicode characters.
*/
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE: Interface descriptor */
struct usb_interface_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bNumEndpoints;
uint8_t bInterfaceClass;
uint8_t bInterfaceSubClass;
uint8_t bInterfaceProtocol;
uint8_t iInterface;
} __attribute__ ((packed));
#define USB_DT_INTERFACE_SIZE 9
/*-------------------------------------------------------------------------*/
/* USB_DT_ENDPOINT: Endpoint descriptor */
struct usb_endpoint_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
uint16_t wMaxPacketSize;
uint8_t bInterval;
/* NOTE: these two are _only_ in audio endpoints. */
/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
// uint8_t bRefresh;
// uint8_t bSynchAddress;
} __attribute__ ((packed));
#define USB_DT_ENDPOINT_SIZE 7
//#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
/*
* Endpoints
*/
#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
#define USB_ENDPOINT_DIR_MASK 0x80
#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
#define USB_ENDPOINT_XFER_CONTROL 0
#define USB_ENDPOINT_XFER_ISOC 1
#define USB_ENDPOINT_XFER_BULK 2
#define USB_ENDPOINT_XFER_INT 3
#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
/*-------------------------------------------------------------------------*/
/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
struct usb_qualifier_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdUSB;
uint8_t bDeviceClass;
uint8_t bDeviceSubClass;
uint8_t bDeviceProtocol;
uint8_t bMaxPacketSize0;
uint8_t bNumConfigurations;
uint8_t bRESERVED;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_OTG (from OTG 1.0a supplement) */
struct usb_otg_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bmAttributes; /* support for HNP, SRP, etc */
} __attribute__ ((packed));
/* from usb_otg_descriptor.bmAttributes */
#define USB_OTG_SRP (1 << 0)
#define USB_OTG_HNP (1 << 1) /* swap host/device roles */
/*-------------------------------------------------------------------------*/
/* USB_DT_DEBUG: for special highspeed devices, replacing serial console */
struct usb_debug_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
/* bulk endpoints with 8 byte maxpacket */
uint8_t bDebugInEndpoint;
uint8_t bDebugOutEndpoint;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
struct usb_interface_assoc_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bFirstInterface;
uint8_t bInterfaceCount;
uint8_t bFunctionClass;
uint8_t bFunctionSubClass;
uint8_t bFunctionProtocol;
uint8_t iFunction;
} __attribute__ ((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_SECURITY: group of wireless security descriptors, including
* encryption types available for setting up a CC/association.
*/
struct usb_security_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumEncryptionTypes;
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_KEY: used with {GET,SET}_SECURITY_DATA; only public keys
* may be retrieved.
*/
struct usb_key_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t tTKID[3];
uint8_t bReserved;
uint8_t bKeyData[0];
} __attribute__((packed));
/*-------------------------------------------------------------------------*/
/* USB_DT_ENCRYPTION_TYPE: bundled in DT_SECURITY groups */
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