diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2016-05-30 14:57:10 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2016-05-30 14:57:10 +0900 |
| commit | 9f16e5e051c2cf11465d00a2ee0265039e448b06 (patch) | |
| tree | fb3a664b095446e632a135c38ee139a85db48066 /example-cdc | |
| parent | b90e58f763bd277b7a5285601a34818f44f2b01c (diff) | |
consolidate mcu-chip specific code
Diffstat (limited to 'example-cdc')
| -rw-r--r-- | example-cdc/Makefile | 7 | ||||
| -rw-r--r-- | example-cdc/aes-constant-ft.c | 145 | ||||
| -rw-r--r-- | example-cdc/sample.c | 9 | ||||
| -rw-r--r-- | example-cdc/sample.ld | 8 | ||||
| -rw-r--r-- | example-cdc/sys.c | 394 | ||||
| -rw-r--r-- | example-cdc/sys.h | 130 | ||||
| -rw-r--r-- | example-cdc/usb_stm32f103.c | 1127 |
7 files changed, 18 insertions, 1802 deletions
diff --git a/example-cdc/Makefile b/example-cdc/Makefile index b6c4c76..2e6e667 100644 --- a/example-cdc/Makefile +++ b/example-cdc/Makefile @@ -4,7 +4,12 @@ PROJECT = sample CHOPSTX = .. LDSCRIPT= sample.ld -CSRC = sys.c aes-constant-ft.c sample.c usb-cdc.c usb_stm32f103.c +CSRC = sample.c usb-cdc.c + +CHIP=stm32f103 + +USE_SYS = yes +USE_USB = yes ################################### CROSS = arm-none-eabi- diff --git a/example-cdc/aes-constant-ft.c b/example-cdc/aes-constant-ft.c deleted file mode 100644 index 21d1ba7..0000000 --- a/example-cdc/aes-constant-ft.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * aes-constant-ft.c - AES forward tables. - * - * We need something useful for the initial flash ROM page (4 Ki - * bytes), which cannot be modified after installation. Even after - * upgrade of the firmware, it stays intact. - * - * We decide to put 3/4 of AES forward tables to fill 3 Ki bytes, as - * its useful and it won't change. - * - * The code was taken from aes.c of PolarSSL version 0.14, and then, - * modified to add section names. - * - * Since this is just a data, it wouldn't be copyright-able, but the - * original auther would claim so. Thus, we put original copyright - * notice here. It is highly likely that there will be no such a - * thing for copyright. Nevertheless, we think that PolarSSL is good - * software to address here, and encourage people using it. - * - */ - -#include <stdint.h> - -/* - * Original copyright notice is below: - */ - -/* - * FIPS-197 compliant AES implementation - * - * Copyright (C) 2006-2010, Brainspark B.V. - * - * This file is part of PolarSSL (http://www.polarssl.org) - * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> - * - * All rights reserved. - * - * 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 2 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, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ -/* - * The AES block cipher was designed by Vincent Rijmen and Joan Daemen. - * - * http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf - * http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf - */ - -/* - * Forward tables - */ -#define FT \ -\ - V(A5,63,63,C6), V(84,7C,7C,F8), V(99,77,77,EE), V(8D,7B,7B,F6), \ - V(0D,F2,F2,FF), V(BD,6B,6B,D6), V(B1,6F,6F,DE), V(54,C5,C5,91), \ - V(50,30,30,60), V(03,01,01,02), V(A9,67,67,CE), V(7D,2B,2B,56), \ - V(19,FE,FE,E7), V(62,D7,D7,B5), V(E6,AB,AB,4D), V(9A,76,76,EC), \ - V(45,CA,CA,8F), V(9D,82,82,1F), V(40,C9,C9,89), V(87,7D,7D,FA), \ - V(15,FA,FA,EF), V(EB,59,59,B2), V(C9,47,47,8E), V(0B,F0,F0,FB), \ - V(EC,AD,AD,41), V(67,D4,D4,B3), V(FD,A2,A2,5F), V(EA,AF,AF,45), \ - V(BF,9C,9C,23), V(F7,A4,A4,53), V(96,72,72,E4), V(5B,C0,C0,9B), \ - V(C2,B7,B7,75), V(1C,FD,FD,E1), V(AE,93,93,3D), V(6A,26,26,4C), \ - V(5A,36,36,6C), V(41,3F,3F,7E), V(02,F7,F7,F5), V(4F,CC,CC,83), \ - V(5C,34,34,68), V(F4,A5,A5,51), V(34,E5,E5,D1), V(08,F1,F1,F9), \ - V(93,71,71,E2), V(73,D8,D8,AB), V(53,31,31,62), V(3F,15,15,2A), \ - V(0C,04,04,08), V(52,C7,C7,95), V(65,23,23,46), V(5E,C3,C3,9D), \ - V(28,18,18,30), V(A1,96,96,37), V(0F,05,05,0A), V(B5,9A,9A,2F), \ - V(09,07,07,0E), V(36,12,12,24), V(9B,80,80,1B), V(3D,E2,E2,DF), \ - V(26,EB,EB,CD), V(69,27,27,4E), V(CD,B2,B2,7F), V(9F,75,75,EA), \ - V(1B,09,09,12), V(9E,83,83,1D), V(74,2C,2C,58), V(2E,1A,1A,34), \ - V(2D,1B,1B,36), V(B2,6E,6E,DC), V(EE,5A,5A,B4), V(FB,A0,A0,5B), \ - V(F6,52,52,A4), V(4D,3B,3B,76), V(61,D6,D6,B7), V(CE,B3,B3,7D), \ - V(7B,29,29,52), V(3E,E3,E3,DD), V(71,2F,2F,5E), V(97,84,84,13), \ - V(F5,53,53,A6), V(68,D1,D1,B9), V(00,00,00,00), V(2C,ED,ED,C1), \ - V(60,20,20,40), V(1F,FC,FC,E3), V(C8,B1,B1,79), V(ED,5B,5B,B6), \ - V(BE,6A,6A,D4), V(46,CB,CB,8D), V(D9,BE,BE,67), V(4B,39,39,72), \ - V(DE,4A,4A,94), V(D4,4C,4C,98), V(E8,58,58,B0), V(4A,CF,CF,85), \ - V(6B,D0,D0,BB), V(2A,EF,EF,C5), V(E5,AA,AA,4F), V(16,FB,FB,ED), \ - V(C5,43,43,86), V(D7,4D,4D,9A), V(55,33,33,66), V(94,85,85,11), \ - V(CF,45,45,8A), V(10,F9,F9,E9), V(06,02,02,04), V(81,7F,7F,FE), \ - V(F0,50,50,A0), V(44,3C,3C,78), V(BA,9F,9F,25), V(E3,A8,A8,4B), \ - V(F3,51,51,A2), V(FE,A3,A3,5D), V(C0,40,40,80), V(8A,8F,8F,05), \ - V(AD,92,92,3F), V(BC,9D,9D,21), V(48,38,38,70), V(04,F5,F5,F1), \ - V(DF,BC,BC,63), V(C1,B6,B6,77), V(75,DA,DA,AF), V(63,21,21,42), \ - V(30,10,10,20), V(1A,FF,FF,E5), V(0E,F3,F3,FD), V(6D,D2,D2,BF), \ - V(4C,CD,CD,81), V(14,0C,0C,18), V(35,13,13,26), V(2F,EC,EC,C3), \ - V(E1,5F,5F,BE), V(A2,97,97,35), V(CC,44,44,88), V(39,17,17,2E), \ - V(57,C4,C4,93), V(F2,A7,A7,55), V(82,7E,7E,FC), V(47,3D,3D,7A), \ - V(AC,64,64,C8), V(E7,5D,5D,BA), V(2B,19,19,32), V(95,73,73,E6), \ - V(A0,60,60,C0), V(98,81,81,19), V(D1,4F,4F,9E), V(7F,DC,DC,A3), \ - V(66,22,22,44), V(7E,2A,2A,54), V(AB,90,90,3B), V(83,88,88,0B), \ - V(CA,46,46,8C), V(29,EE,EE,C7), V(D3,B8,B8,6B), V(3C,14,14,28), \ - V(79,DE,DE,A7), V(E2,5E,5E,BC), V(1D,0B,0B,16), V(76,DB,DB,AD), \ - V(3B,E0,E0,DB), V(56,32,32,64), V(4E,3A,3A,74), V(1E,0A,0A,14), \ - V(DB,49,49,92), V(0A,06,06,0C), V(6C,24,24,48), V(E4,5C,5C,B8), \ - V(5D,C2,C2,9F), V(6E,D3,D3,BD), V(EF,AC,AC,43), V(A6,62,62,C4), \ - V(A8,91,91,39), V(A4,95,95,31), V(37,E4,E4,D3), V(8B,79,79,F2), \ - V(32,E7,E7,D5), V(43,C8,C8,8B), V(59,37,37,6E), V(B7,6D,6D,DA), \ - V(8C,8D,8D,01), V(64,D5,D5,B1), V(D2,4E,4E,9C), V(E0,A9,A9,49), \ - V(B4,6C,6C,D8), V(FA,56,56,AC), V(07,F4,F4,F3), V(25,EA,EA,CF), \ - V(AF,65,65,CA), V(8E,7A,7A,F4), V(E9,AE,AE,47), V(18,08,08,10), \ - V(D5,BA,BA,6F), V(88,78,78,F0), V(6F,25,25,4A), V(72,2E,2E,5C), \ - V(24,1C,1C,38), V(F1,A6,A6,57), V(C7,B4,B4,73), V(51,C6,C6,97), \ - V(23,E8,E8,CB), V(7C,DD,DD,A1), V(9C,74,74,E8), V(21,1F,1F,3E), \ - V(DD,4B,4B,96), V(DC,BD,BD,61), V(86,8B,8B,0D), V(85,8A,8A,0F), \ - V(90,70,70,E0), V(42,3E,3E,7C), V(C4,B5,B5,71), V(AA,66,66,CC), \ - V(D8,48,48,90), V(05,03,03,06), V(01,F6,F6,F7), V(12,0E,0E,1C), \ - V(A3,61,61,C2), V(5F,35,35,6A), V(F9,57,57,AE), V(D0,B9,B9,69), \ - V(91,86,86,17), V(58,C1,C1,99), V(27,1D,1D,3A), V(B9,9E,9E,27), \ - V(38,E1,E1,D9), V(13,F8,F8,EB), V(B3,98,98,2B), V(33,11,11,22), \ - V(BB,69,69,D2), V(70,D9,D9,A9), V(89,8E,8E,07), V(A7,94,94,33), \ - V(B6,9B,9B,2D), V(22,1E,1E,3C), V(92,87,87,15), V(20,E9,E9,C9), \ - V(49,CE,CE,87), V(FF,55,55,AA), V(78,28,28,50), V(7A,DF,DF,A5), \ - V(8F,8C,8C,03), V(F8,A1,A1,59), V(80,89,89,09), V(17,0D,0D,1A), \ - V(DA,BF,BF,65), V(31,E6,E6,D7), V(C6,42,42,84), V(B8,68,68,D0), \ - V(C3,41,41,82), V(B0,99,99,29), V(77,2D,2D,5A), V(11,0F,0F,1E), \ - V(CB,B0,B0,7B), V(FC,54,54,A8), V(D6,BB,BB,6D), V(3A,16,16,2C) - -#define V(a,b,c,d) 0x##a##b##c##d -const uint32_t FT0[256] __attribute__((section(".sys.0"))) = { FT }; -#undef V - -#define V(a,b,c,d) 0x##b##c##d##a -const uint32_t FT1[256] __attribute__((section(".sys.1"))) = { FT }; -#undef V - -#define V(a,b,c,d) 0x##c##d##a##b -const uint32_t FT2[256] __attribute__((section(".sys.2"))) = { FT }; -#undef V - -#ifdef ORIGINAL_IMPLEMENTATION -#define V(a,b,c,d) 0x##d##a##b##c -const uint32_t FT3[256] = { FT }; -#undef V -#endif diff --git a/example-cdc/sample.c b/example-cdc/sample.c index cb6c5ae..db23133 100644 --- a/example-cdc/sample.c +++ b/example-cdc/sample.c @@ -3,10 +3,17 @@ #include <string.h> #include <chopstx.h> -#include "sys.h" /* for set_led */ #include "usb_lld.h" #include "tty.h" +/* For set_led */ +#include "board.h" +#ifdef MCU_KINETIS_L +#include "mcu/sys-mkl27z.h" +#else +#include "mcu/sys-stm32f103.h" +#endif + static chopstx_mutex_t mtx; static chopstx_cond_t cnd0; static chopstx_cond_t cnd1; diff --git a/example-cdc/sample.ld b/example-cdc/sample.ld index 9b7eca3..5bb17e1 100644 --- a/example-cdc/sample.ld +++ b/example-cdc/sample.ld @@ -30,10 +30,10 @@ SECTIONS KEEP(*(.sys.version)) KEEP(*(.sys.board_id)) KEEP(*(.sys.board_name)) - build/sys.o(.text) - build/sys.o(.text.*) - build/sys.o(.rodata) - build/sys.o(.rodata.*) + build/sys-*.o(.text) + build/sys-*.o(.text.*) + build/sys-*.o(.rodata) + build/sys-*.o(.rodata.*) . = ALIGN(1024); *(.sys.0) *(.sys.1) diff --git a/example-cdc/sys.c b/example-cdc/sys.c deleted file mode 100644 index d73b709..0000000 --- a/example-cdc/sys.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * sys.c - system routines for the initial page for STM32F103. - * - * Copyright (C) 2013, 2014, 2015, 2016 Flying Stone Technology - * Author: NIIBE Yutaka <gniibe@fsij.org> - * - * Copying and distribution of this file, with or without modification, - * are permitted in any medium without royalty provided the copyright - * notice and this notice are preserved. This file is offered as-is, - * without any warranty. - * - * When the flash ROM is protected, we cannot modify the initial page. - * We put some system routines (which is useful for any program) here. - */ - -#include <stdint.h> -#include <stdlib.h> -#include "board.h" - -#include "mcu/clk_gpio_init-stm32.c" - - -static void -usb_cable_config (int enable) -{ -#if defined(GPIO_USB_SET_TO_ENABLE) - if (enable) - GPIO_USB->BSRR = (1 << GPIO_USB_SET_TO_ENABLE); - else - GPIO_USB->BRR = (1 << GPIO_USB_SET_TO_ENABLE); -#elif defined(GPIO_USB_CLEAR_TO_ENABLE) - if (enable) - GPIO_USB->BRR = (1 << GPIO_USB_CLEAR_TO_ENABLE); - else - GPIO_USB->BSRR = (1 << GPIO_USB_CLEAR_TO_ENABLE); -#else - (void)enable; -#endif -} - -void -set_led (int on) -{ -#if defined(GPIO_LED_CLEAR_TO_EMIT) - if (on) - GPIO_LED->BRR = (1 << GPIO_LED_CLEAR_TO_EMIT); - else - GPIO_LED->BSRR = (1 << GPIO_LED_CLEAR_TO_EMIT); -#else - if (on) - GPIO_LED->BSRR = (1 << GPIO_LED_SET_TO_EMIT); - else - GPIO_LED->BRR = (1 << GPIO_LED_SET_TO_EMIT); -#endif -} - -static void wait (int count) -{ - int i; - - for (i = 0; i < count; i++) - asm volatile ("" : : "r" (i) : "memory"); -} - - -static void -usb_lld_sys_shutdown (void) -{ - RCC->APB1ENR &= ~RCC_APB1ENR_USBEN; - RCC->APB1RSTR = RCC_APB1RSTR_USBRST; - usb_cable_config (0); -} - -static void -usb_lld_sys_init (void) -{ - if ((RCC->APB1ENR & RCC_APB1ENR_USBEN) - && (RCC->APB1RSTR & RCC_APB1RSTR_USBRST) == 0) - /* Make sure the device is disconnected, even after core reset. */ - { - usb_lld_sys_shutdown (); - /* Disconnect requires SE0 (>= 2.5uS). */ - wait (300); - } - - usb_cable_config (1); - RCC->APB1ENR |= RCC_APB1ENR_USBEN; - RCC->APB1RSTR = RCC_APB1RSTR_USBRST; - RCC->APB1RSTR = 0; -} - -#define FLASH_KEY1 0x45670123UL -#define FLASH_KEY2 0xCDEF89ABUL - -enum flash_status -{ - FLASH_BUSY = 1, - FLASH_ERROR_PG, - FLASH_ERROR_WRP, - FLASH_COMPLETE, - FLASH_TIMEOUT -}; - -static void __attribute__ ((used)) -flash_unlock (void) -{ - FLASH->KEYR = FLASH_KEY1; - FLASH->KEYR = FLASH_KEY2; -} - - -#define intr_disable() asm volatile ("cpsid i" : : : "memory") -#define intr_enable() asm volatile ("cpsie i" : : : "memory") - -#define FLASH_SR_BSY 0x01 -#define FLASH_SR_PGERR 0x04 -#define FLASH_SR_WRPRTERR 0x10 -#define FLASH_SR_EOP 0x20 - -#define FLASH_CR_PG 0x0001 -#define FLASH_CR_PER 0x0002 -#define FLASH_CR_MER 0x0004 -#define FLASH_CR_OPTPG 0x0010 -#define FLASH_CR_OPTER 0x0020 -#define FLASH_CR_STRT 0x0040 -#define FLASH_CR_LOCK 0x0080 -#define FLASH_CR_OPTWRE 0x0200 -#define FLASH_CR_ERRIE 0x0400 -#define FLASH_CR_EOPIE 0x1000 - -static int -flash_wait_for_last_operation (uint32_t timeout) -{ - int status; - - do - { - status = FLASH->SR; - if (--timeout == 0) - break; - } - while ((status & FLASH_SR_BSY) != 0); - - return status & (FLASH_SR_BSY|FLASH_SR_PGERR|FLASH_SR_WRPRTERR); -} - -#define FLASH_PROGRAM_TIMEOUT 0x00010000 -#define FLASH_ERASE_TIMEOUT 0x01000000 - -static int -flash_program_halfword (uint32_t addr, uint16_t data) -{ - int status; - - status = flash_wait_for_last_operation (FLASH_PROGRAM_TIMEOUT); - - intr_disable (); - if (status == 0) - { - FLASH->CR |= FLASH_CR_PG; - - *(volatile uint16_t *)addr = data; - - status = flash_wait_for_last_operation (FLASH_PROGRAM_TIMEOUT); - FLASH->CR &= ~FLASH_CR_PG; - } - intr_enable (); - - return status; -} - -static int -flash_erase_page (uint32_t addr) -{ - int status; - - status = flash_wait_for_last_operation (FLASH_ERASE_TIMEOUT); - - intr_disable (); - if (status == 0) - { - FLASH->CR |= FLASH_CR_PER; - FLASH->AR = addr; - FLASH->CR |= FLASH_CR_STRT; - - status = flash_wait_for_last_operation (FLASH_ERASE_TIMEOUT); - FLASH->CR &= ~FLASH_CR_PER; - } - intr_enable (); - - return status; -} - -static int -flash_check_blank (const uint8_t *p_start, size_t size) -{ - const uint8_t *p; - - for (p = p_start; p < p_start + size; p++) - if (*p != 0xff) - return 0; - - return 1; -} - -#define FLASH_START_ADDR 0x08000000 /* Fixed for all STM32F1. */ -#define FLASH_OFFSET 0x1000 /* First pages are not-writable. */ -#define FLASH_START (FLASH_START_ADDR+FLASH_OFFSET) -#define CHIP_ID_REG ((uint32_t *)0xe0042000) -#define FLASH_SIZE_REG ((uint16_t *)0x1ffff7e0) - -static int -flash_write (uint32_t dst_addr, const uint8_t *src, size_t len) -{ - int status; - uint32_t flash_end = FLASH_START_ADDR + (*FLASH_SIZE_REG)*1024; - - if (dst_addr < FLASH_START || dst_addr + len > flash_end) - return 0; - - while (len) - { - uint16_t hw = *src++; - - hw |= (*src++ << 8); - status = flash_program_halfword (dst_addr, hw); - if (status != 0) - return 0; /* error return */ - - dst_addr += 2; - len -= 2; - } - - return 1; -} - -#define OPTION_BYTES_ADDR 0x1ffff800 - -static int -flash_protect (void) -{ - int status; - uint32_t option_bytes_value; - - status = flash_wait_for_last_operation (FLASH_ERASE_TIMEOUT); - - intr_disable (); - if (status == 0) - { - FLASH->OPTKEYR = FLASH_KEY1; - FLASH->OPTKEYR = FLASH_KEY2; - - FLASH->CR |= FLASH_CR_OPTER; - FLASH->CR |= FLASH_CR_STRT; - - status = flash_wait_for_last_operation (FLASH_ERASE_TIMEOUT); - FLASH->CR &= ~FLASH_CR_OPTER; - } - intr_enable (); - - if (status != 0) - return 0; - - option_bytes_value = *(uint32_t *)OPTION_BYTES_ADDR; - return (option_bytes_value & 0xff) == 0xff ? 1 : 0; -} - -static void __attribute__((naked)) -flash_erase_all_and_exec (void (*entry)(void)) -{ - uint32_t addr = FLASH_START; - uint32_t end = FLASH_START_ADDR + (*FLASH_SIZE_REG)*1024; - uint32_t page_size = 1024; - int r; - - if (((*CHIP_ID_REG) & 0xfff) == 0x0414) - page_size = 2048; - - while (addr < end) - { - r = flash_erase_page (addr); - if (r != 0) - break; - - addr += page_size; - } - - if (addr >= end) - (*entry) (); - - for (;;); -} - -struct SCB -{ - volatile uint32_t CPUID; - volatile uint32_t ICSR; - volatile uint32_t VTOR; - volatile uint32_t AIRCR; - volatile uint32_t SCR; - volatile uint32_t CCR; - volatile uint8_t SHP[12]; - volatile uint32_t SHCSR; - volatile uint32_t CFSR; - volatile uint32_t HFSR; - volatile uint32_t DFSR; - volatile uint32_t MMFAR; - volatile uint32_t BFAR; - volatile uint32_t AFSR; - volatile uint32_t PFR[2]; - volatile uint32_t DFR; - volatile uint32_t ADR; - volatile uint32_t MMFR[4]; - volatile uint32_t ISAR[5]; -}; - -#define SCS_BASE (0xE000E000) -#define SCB_BASE (SCS_BASE + 0x0D00) -static struct SCB *const SCB = ((struct SCB *const) SCB_BASE); - -#define SYSRESETREQ 0x04 -static void -nvic_system_reset (void) -{ - SCB->AIRCR = (0x05FA0000 | (SCB->AIRCR & 0x70) | SYSRESETREQ); - asm volatile ("dsb"); - for (;;); -} - -static void __attribute__ ((naked)) -reset (void) -{ - extern const unsigned long *FT0, *FT1, *FT2; - - /* - * This code may not be at the start of flash ROM, because of DFU. - * So, we take the address from PC. - */ - asm volatile ("cpsid i\n\t" /* Mask all interrupts. */ - "ldr r0, 1f\n\t" /* r0 = SCR */ - "mov r1, pc\n\t" /* r1 = (PC + 0x1000) & ~0x0fff */ - "mov r2, #0x1000\n\t" - "add r1, r1, r2\n\t" - "sub r2, r2, #1\n\t" - "bic r1, r1, r2\n\t" - "str r1, [r0, #8]\n\t" /* Set SCR->VCR */ - "ldr r0, [r1], #4\n\t" - "msr MSP, r0\n\t" /* Main (exception handler) stack. */ - "ldr r0, [r1]\n\t" /* Reset handler. */ - "bx r0\n\t" - ".align 2\n" - "1: .word 0xe000ed00" - : /* no output */ : /* no input */ : "memory"); - - /* Never reach here. */ - /* Artificial entry to refer FT0, FT1, and FT2. */ - asm volatile ("" - : : "r" (FT0), "r" (FT1), "r" (FT2)); -} - -typedef void (*handler)(void); -extern uint8_t __ram_end__; - -handler vector[] __attribute__ ((section(".vectors"))) = { - (handler)&__ram_end__, - reset, - (handler)set_led, - flash_unlock, - (handler)flash_program_halfword, - (handler)flash_erase_page, - (handler)flash_check_blank, - (handler)flash_write, - (handler)flash_protect, - (handler)flash_erase_all_and_exec, - usb_lld_sys_init, - usb_lld_sys_shutdown, - nvic_system_reset, - clock_init, - gpio_init, - NULL, -}; - -const uint8_t sys_version[8] __attribute__((section(".sys.version"))) = { - 3*2+2, /* bLength */ - 0x03, /* bDescriptorType = USB_STRING_DESCRIPTOR_TYPE */ - /* sys version: "3.0" */ - '3', 0, '.', 0, '0', 0, -}; - -const uint32_t __attribute__((section(".sys.board_id"))) -sys_board_id = BOARD_ID; - -const uint8_t __attribute__((section(".sys.board_name"))) -sys_board_name[] = BOARD_NAME; diff --git a/example-cdc/sys.h b/example-cdc/sys.h deleted file mode 100644 index aa7825d..0000000 --- a/example-cdc/sys.h +++ /dev/null @@ -1,130 +0,0 @@ -#define BOARD_ID_CQ_STARM 0xc5480875 -#define BOARD_ID_FST_01_00 0x613870a9 -#define BOARD_ID_FST_01 0x696886af -#define BOARD_ID_MAPLE_MINI 0x7a445272 -#define BOARD_ID_OLIMEX_STM32_H103 0xf92bb594 -#define BOARD_ID_STBEE_MINI 0x1f341961 -#define BOARD_ID_STBEE 0x945c37e8 -#define BOARD_ID_STM32_PRIMER2 0x21e5798d -#define BOARD_ID_STM8S_DISCOVERY 0x2f0976bb -#define BOARD_ID_ST_DONGLE 0x2cd4e471 -#define BOARD_ID_ST_NUCLEO_F103 0x9b87c16d -#define BOARD_ID_NITROKEY_START 0xad1e7ebd - -extern const uint8_t sys_version[8]; -extern const uint32_t sys_board_id; -extern const uint8_t sys_board_name[]; - -typedef void (*handler)(void); -extern handler vector[16]; - -static inline const uint8_t * -unique_device_id (void) -{ - /* STM32F103 has 96-bit unique device identifier */ - const uint8_t *addr = (const uint8_t *)0x1ffff7e8; - - return addr; -} - -static inline void -set_led (int on) -{ - void (*func) (int) = (void (*)(int))vector[2]; - - return (*func) (on); -} - -static inline void -flash_unlock (void) -{ - (*vector[3]) (); -} - -static inline int -flash_program_halfword (uint32_t addr, uint16_t data) -{ - int (*func) (uint32_t, uint16_t) = (int (*)(uint32_t, uint16_t))vector[4]; - - return (*func) (addr, data); -} - -static inline int -flash_erase_page (uint32_t addr) -{ - int (*func) (uint32_t) = (int (*)(uint32_t))vector[5]; - - return (*func) (addr); -} - -static inline int -flash_check_blank (const uint8_t *p_start, size_t size) -{ - int (*func) (const uint8_t *, int) = (int (*)(const uint8_t *, int))vector[6]; - - return (*func) (p_start, size); -} - -static inline int -flash_write (uint32_t dst_addr, const uint8_t *src, size_t len) -{ - int (*func) (uint32_t, const uint8_t *, size_t) - = (int (*)(uint32_t, const uint8_t *, size_t))vector[7]; - - return (*func) (dst_addr, src, len); -} - -static inline int -flash_protect (void) -{ - int (*func) (void) = (int (*)(void))vector[8]; - - return (*func) (); -} - -static inline void __attribute__((noreturn)) -flash_erase_all_and_exec (void (*entry)(void)) -{ - void (*func) (void (*)(void)) = (void (*)(void (*)(void)))vector[9]; - - (*func) (entry); - for (;;); -} - -static inline void -usb_lld_sys_init (void) -{ - (*vector[10]) (); -} - -static inline void -usb_lld_sys_shutdown (void) -{ - (*vector[11]) (); -} - -static inline void -nvic_system_reset (void) -{ - (*vector[12]) (); -} - -/* - * Users can override INLINE by 'attribute((used))' to have an - * implementation defined. - */ -#if !defined(INLINE) -#define INLINE __inline__ -#endif - -static INLINE void -clock_init (void) -{ - (*vector[13]) (); -} - -static INLINE void -gpio_init (void) -{ - (*vector[14]) (); -} diff --git a/example-cdc/usb_stm32f103.c b/example-cdc/usb_stm32f103.c deleted file mode 100644 index 80fbcc7..0000000 --- a/example-cdc/usb_stm32f103.c +++ /dev/null @@ -1,1127 +0,0 @@ -#include <stdint.h> -#include <stdlib.h> - -#include "sys.h" -#include "usb_lld.h" - -#define USB_MAX_PACKET_SIZE 64 /* For FS device */ - -enum STANDARD_REQUESTS -{ - GET_STATUS = 0, - CLEAR_FEATURE, - RESERVED1, - SET_FEATURE, - RESERVED2, - SET_ADDRESS, - GET_DESCRIPTOR, - SET_DESCRIPTOR, - GET_CONFIGURATION, - SET_CONFIGURATION, - GET_INTERFACE, - SET_INTERFACE, - SYNCH_FRAME, - TOTAL_REQUEST /* Total number of Standard request */ -}; - -/* The state machine states of a control pipe */ -enum CONTROL_STATE -{ - WAIT_SETUP, - SETTING_UP, - IN_DATA, - OUT_DATA, - LAST_IN_DATA, - WAIT_STATUS_IN, - WAIT_STATUS_OUT, - STALLED, - PAUSE -}; - -enum FEATURE_SELECTOR -{ - ENDPOINT_STALL, - DEVICE_REMOTE_WAKEUP -}; - -struct DATA_INFO -{ - uint8_t *addr; - uint16_t len; - uint8_t require_zlp; -}; - - -struct DEVICE_INFO -{ - uint8_t current_configuration; - uint8_t current_feature; - uint8_t state; - /**/ - uint8_t bmRequestType; - uint8_t bRequest; - /**/ - uint16_t value; - uint16_t index; - uint16_t len; -}; - -static struct DEVICE_INFO device_info; -static struct DATA_INFO data_info; - -static struct DEVICE_INFO *const dev_p = &device_info; -static struct DATA_INFO *const data_p = &data_info; - -#define REG_BASE (0x40005C00UL) /* USB_IP Peripheral Registers base address */ -#define PMA_ADDR (0x40006000UL) /* USB_IP Packet Memory Area base address */ - -/* Control register */ -#define CNTR ((volatile uint16_t *)(REG_BASE + 0x40)) -/* Interrupt status register */ -#define ISTR ((volatile uint16_t *)(REG_BASE + 0x44)) -/* Frame number register */ -#define FNR ((volatile uint16_t *)(REG_BASE + 0x48)) -/* Device address register */ -#define DADDR ((volatile uint16_t *)(REG_BASE + 0x4C)) -/* Buffer Table address register */ -#define BTABLE ((volatile uint16_t *)(REG_BASE + 0x50)) - -#define ISTR_CTR (0x8000) /* Correct TRansfer (read-only bit) */ -#define ISTR_OVR (0x4000) /* OVeR/underrun (clear-only bit) */ -#define ISTR_ERR (0x2000) /* ERRor (clear-only bit) */ -#define ISTR_WKUP (0x1000) /* WaKe UP (clear-only bit) */ -#define ISTR_SUSP (0x0800) /* SUSPend (clear-only bit) */ -#define ISTR_RESET (0x0400) /* RESET (clear-only bit) */ -#define ISTR_SOF (0x0200) /* Start Of Frame (clear-only bit) */ -#define ISTR_ESOF (0x0100) /* Expected Start Of Frame (clear-only bit) */ - -#define ISTR_DIR (0x0010) /* DIRection of transaction (read-only bit) */ -#define ISTR_EP_ID (0x000F) /* EndPoint IDentifier (read-only bit) */ - -#define CLR_OVR (~ISTR_OVR) /* clear OVeR/underrun bit*/ -#define CLR_ERR (~ISTR_ERR) /* clear ERRor bit */ -#define CLR_WKUP (~ISTR_WKUP) /* clear WaKe UP bit */ -#define CLR_SUSP (~ISTR_SUSP) /* clear SUSPend bit */ -#define CLR_RESET (~ISTR_RESET) /* clear RESET bit */ -#define CLR_SOF (~ISTR_SOF) /* clear Start Of Frame bit */ -#define CLR_ESOF (~ISTR_ESOF) /* clear Expected Start Of Frame bit */ - -#define CNTR_CTRM (0x8000) /* Correct TRansfer Mask */ -#define CNTR_OVRM (0x4000) /* OVeR/underrun Mask */ -#define CNTR_ERRM (0x2000) /* ERRor Mask */ -#define CNTR_WKUPM (0x1000) /* WaKe UP Mask */ -#define CNTR_SUSPM (0x0800) /* SUSPend Mask */ -#define CNTR_RESETM (0x0400) /* RESET Mask */ -#define CNTR_SOFM (0x0200) /* Start Of Frame Mask */ -#define CNTR_ESOFM (0x0100) /* Expected Start Of Frame Mask */ - -#define CNTR_RESUME (0x0010) /* RESUME request */ -#define CNTR_FSUSP (0x0008) /* Force SUSPend */ -#define CNTR_LPMODE (0x0004) /* Low-power MODE */ -#define CNTR_PDWN (0x0002) /* Power DoWN */ -#define CNTR_FRES (0x0001) /* Force USB RESet */ - -#define DADDR_EF (0x80) -#define DADDR_ADD (0x7F) - -#define EP_CTR_RX (0x8000) /* EndPoint Correct TRansfer RX */ -#define EP_DTOG_RX (0x4000) /* EndPoint Data TOGGLE RX */ -#define EPRX_STAT (0x3000) /* EndPoint RX STATus bit field */ -#define EP_SETUP (0x0800) /* EndPoint SETUP */ -#define EP_T_FIELD (0x0600) /* EndPoint TYPE */ -#define EP_KIND (0x0100) /* EndPoint KIND */ -#define EP_CTR_TX (0x0080) /* EndPoint Correct TRansfer TX */ -#define EP_DTOG_TX (0x0040) /* EndPoint Data TOGGLE TX */ -#define EPTX_STAT (0x0030) /* EndPoint TX STATus bit field */ -#define EPADDR_FIELD (0x000F) /* EndPoint ADDRess FIELD */ - -#define EPREG_MASK (EP_CTR_RX|EP_SETUP|EP_T_FIELD|EP_KIND|EP_CTR_TX|EPADDR_FIELD) - -/* STAT_TX[1:0] STATus for TX transfer */ -#define EP_TX_DIS (0x0000) /* EndPoint TX DISabled */ -#define EP_TX_STALL (0x0010) /* EndPoint TX STALLed */ -#define EP_TX_NAK (0x0020) /* EndPoint TX NAKed */ -#define EP_TX_VALID (0x0030) /* EndPoint TX VALID */ -#define EPTX_DTOG1 (0x0010) /* EndPoint TX Data TOGgle bit1 */ -#define EPTX_DTOG2 (0x0020) /* EndPoint TX Data TOGgle bit2 */ - -/* STAT_RX[1:0] STATus for RX transfer */ -#define EP_RX_DIS (0x0000) /* EndPoint RX DISabled */ -#define EP_RX_STALL (0x1000) /* EndPoint RX STALLed */ -#define EP_RX_NAK (0x2000) /* EndPoint RX NAKed */ -#define EP_RX_VALID (0x3000) /* EndPoint RX VALID */ -#define EPRX_DTOG1 (0x1000) /* EndPoint RX Data TOGgle bit1 */ -#define EPRX_DTOG2 (0x2000) /* EndPoint RX Data TOGgle bit1 */ - -static void usb_handle_transfer (uint16_t istr_value); - -static void st103_set_btable (void) -{ - *BTABLE = 0; -} - -static uint16_t st103_get_istr (void) -{ - return *ISTR; -} - -static void st103_set_istr (uint16_t istr) -{ - *ISTR = istr; -} - -static void st103_set_cntr (uint16_t cntr) -{ - *CNTR = cntr; -} - -static void st103_set_daddr (uint16_t daddr) -{ - *DADDR = daddr | DADDR_EF; -} - -static void st103_set_epreg (uint8_t ep_num, uint16_t value) -{ - uint16_t *reg_p = (uint16_t *)(REG_BASE + ep_num*4); - - *reg_p = value; -} - -static uint16_t st103_get_epreg (uint8_t ep_num) -{ - uint16_t *reg_p = (uint16_t *)(REG_BASE + ep_num*4); - - return *reg_p; -} - -static void st103_set_tx_addr (uint8_t ep_num, uint16_t addr) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+0)*2); - - *reg_p = addr; -} - -static uint16_t st103_get_tx_addr (uint8_t ep_num) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+0)*2); - - return *reg_p; -} - - -static void st103_set_tx_count (uint8_t ep_num, uint16_t size) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+2)*2); - - *reg_p = size; -} - -static uint16_t st103_get_tx_count (uint8_t ep_num) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+2)*2); - - return *reg_p & 0x03ff; -} - - -static void st103_set_rx_addr (uint8_t ep_num, uint16_t addr) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+4)*2); - - *reg_p = addr; -} - -static uint16_t st103_get_rx_addr (uint8_t ep_num) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+4)*2); - - return *reg_p; -} - - -static void st103_set_rx_buf_size (uint8_t ep_num, uint16_t size) -{ /* Assume size is even */ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+6)*2); - uint16_t value; - - if (size <= 62) - value = (size & 0x3e) << 9; - else - value = 0x8000 | (((size >> 5) - 1) << 10); - - *reg_p = value; -} - -static uint16_t st103_get_rx_count (uint8_t ep_num) -{ - uint16_t *reg_p = (uint16_t *)(PMA_ADDR + (ep_num*8+6)*2); - - return *reg_p & 0x03ff; -} - - -static void st103_ep_clear_ctr_rx (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num) & ~EP_CTR_RX & EPREG_MASK; - - st103_set_epreg (ep_num, value); -} - -static void st103_ep_clear_ctr_tx (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num) & ~EP_CTR_TX & EPREG_MASK; - - st103_set_epreg (ep_num, value); -} - -static void st103_ep_set_rxtx_status (uint8_t ep_num, uint16_t st_rx, - uint16_t st_tx) -{ - uint16_t value = st103_get_epreg (ep_num); - - value &= (EPREG_MASK|EPRX_STAT|EPTX_STAT); - value ^= (EPRX_DTOG1 & st_rx); - value ^= (EPRX_DTOG2 & st_rx); - value ^= (EPTX_DTOG1 & st_tx); - value ^= (EPTX_DTOG2 & st_tx); - value |= EP_CTR_RX | EP_CTR_TX; - st103_set_epreg (ep_num, value); -} - -static void st103_ep_set_rx_status (uint8_t ep_num, uint16_t st_rx) -{ - uint16_t value = st103_get_epreg (ep_num); - - value &= (EPREG_MASK|EPRX_STAT); - value ^= (EPRX_DTOG1 & st_rx); - value ^= (EPRX_DTOG2 & st_rx); - value |= EP_CTR_RX | EP_CTR_TX; - st103_set_epreg (ep_num, value); -} - -static uint16_t st103_ep_get_rx_status (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num); - - return value & EPRX_STAT; -} - -static void st103_ep_set_tx_status (uint8_t ep_num, uint16_t st_tx) -{ - uint16_t value = st103_get_epreg (ep_num); - - value &= (EPREG_MASK|EPTX_STAT); - value ^= (EPTX_DTOG1 & st_tx); - value ^= (EPTX_DTOG2 & st_tx); - value |= EP_CTR_RX | EP_CTR_TX; - st103_set_epreg (ep_num, value); -} - -static uint16_t st103_ep_get_tx_status (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num); - - return value & EPTX_STAT; -} - -static void st103_ep_clear_dtog_rx (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num); - - if ((value & EP_DTOG_RX)) - { - value &= EPREG_MASK; - value |= EP_CTR_RX | EP_CTR_TX | EP_DTOG_RX; - st103_set_epreg (ep_num, value); - } -} - -static void st103_ep_clear_dtog_tx (uint8_t ep_num) -{ - uint16_t value = st103_get_epreg (ep_num); - - if ((value & EP_DTOG_TX)) - { - value &= EPREG_MASK; - value |= EP_CTR_RX | EP_CTR_TX | EP_DTOG_TX; - st103_set_epreg (ep_num, value); - } -} - -void usb_lld_init (uint8_t feature) -{ - usb_lld_sys_init (); - - dev_p->state = IN_DATA; - - usb_lld_set_configuration (0); - dev_p->current_feature = feature; - - /* Reset USB */ - st103_set_cntr (CNTR_FRES); - st103_set_cntr (0); - - /* Clear Interrupt Status Register, and enable interrupt for USB */ - st103_set_istr (0); - st103_set_cntr (CNTR_CTRM | CNTR_RESETM); -} - -void usb_lld_prepare_shutdown (void) -{ - st103_set_istr (0); - st103_set_cntr (0); -} - -void usb_lld_shutdown (void) -{ - st103_set_cntr (CNTR_PDWN); - usb_lld_sys_shutdown (); -} - -void -usb_interrupt_handler (void) -{ - uint16_t istr_value = st103_get_istr (); - - if ((istr_value & ISTR_RESET)) - { - st103_set_istr (CLR_RESET); - usb_cb_device_reset (); - } - else - { - if ((istr_value & ISTR_OVR)) - st103_set_istr (CLR_OVR); - - if ((istr_value & ISTR_ERR)) - st103_set_istr (CLR_ERR); - - if ((istr_value & ISTR_CTR)) - usb_handle_transfer (istr_value); - } -} - -static void handle_datastage_out (void) -{ - if (data_p->addr && data_p->len) - { - uint32_t len = st103_get_rx_count (ENDP0); - - if (len > data_p->len) - len = data_p->len; - - usb_lld_from_pmabuf (data_p->addr, st103_get_rx_addr (ENDP0), len); - data_p->len -= len; - data_p->addr += len; - } - - if (data_p->len == 0) - { - dev_p->state = WAIT_STATUS_IN; - st103_set_tx_count (ENDP0, 0); - st103_ep_set_rxtx_status (ENDP0, EP_RX_STALL, EP_TX_VALID); - } - else - { - dev_p->state = OUT_DATA; - st103_ep_set_rx_status (ENDP0, EP_RX_VALID); - } -} - -static void handle_datastage_in (void) -{ - uint32_t len = USB_MAX_PACKET_SIZE;; - - if ((data_p->len == 0) && (dev_p->state == LAST_IN_DATA)) - { - if (data_p->require_zlp) - { - data_p->require_zlp = 0; - - /* No more data to send. Send empty packet */ - st103_set_tx_count (ENDP0, 0); - st103_ep_set_rxtx_status (ENDP0, EP_RX_VALID, EP_TX_VALID); - } - else - { - /* No more data to send, proceed to receive OUT acknowledge.*/ - dev_p->state = WAIT_STATUS_OUT; - st103_ep_set_rxtx_status (ENDP0, EP_RX_VALID, EP_TX_STALL); - } - - return; - } - - dev_p->state = (data_p->len <= len) ? LAST_IN_DATA : IN_DATA; - - if (len > data_p->len) - len = data_p->len; - - usb_lld_to_pmabuf (data_p->addr, st103_get_tx_addr (ENDP0), len); - data_p->len -= len; - data_p->addr += len; - st103_set_tx_count (ENDP0, len); - st103_ep_set_tx_status (ENDP0, EP_TX_VALID); -} - -typedef int (*HANDLER) (uint8_t req, struct req_args *arg); - -static int std_none (uint8_t req, struct req_args *arg) -{ - (void)req; (void)arg; - return USB_UNSUPPORT; -} - -static int std_get_status (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - uint16_t status_info = 0; - - if (arg->value != 0 || arg->len != 2 || (arg->index >> 8) != 0 - || USB_SETUP_SET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT) - { - if (arg->index == 0) - { - /* Get Device Status */ - uint8_t feature = dev_p->current_feature; - - /* Remote Wakeup enabled */ - if ((feature & (1 << 5))) - status_info |= 2; - else - status_info &= ~2; - - /* Bus-powered */ - if ((feature & (1 << 6))) - status_info |= 1; - else /* Self-powered */ - status_info &= ~1; - - return usb_lld_reply_request (&status_info, 2, arg); - } - } - else if (rcp == INTERFACE_RECIPIENT) - { - int r; - - if (dev_p->current_configuration == 0) - return USB_UNSUPPORT; - - r = usb_cb_interface (USB_QUERY_INTERFACE, arg); - if (r != USB_SUCCESS) - return USB_UNSUPPORT; - - return usb_lld_reply_request (&status_info, 2, arg); - } - else if (rcp == ENDPOINT_RECIPIENT) - { - uint8_t endpoint = (arg->index & 0x0f); - uint16_t status; - - if ((arg->index & 0x70) || endpoint == ENDP0) - return USB_UNSUPPORT; - - if ((arg->index & 0x80)) - { - status = st103_ep_get_tx_status (endpoint); - if (status == 0) /* Disabled */ - return USB_UNSUPPORT; - else if (status == EP_TX_STALL) - status_info |= 1; /* IN Endpoint stalled */ - } - else - { - status = st103_ep_get_rx_status (endpoint); - if (status == 0) /* Disabled */ - return USB_UNSUPPORT; - else if (status == EP_RX_STALL) - status_info |= 1; /* OUT Endpoint stalled */ - } - - return usb_lld_reply_request (&status_info, 2, arg); - } - - return USB_UNSUPPORT; -} - -static int std_clear_feature (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_GET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT) - { - if (arg->len != 0 || arg->index != 0) - return USB_UNSUPPORT; - - if (arg->value == DEVICE_REMOTE_WAKEUP) - { - dev_p->current_feature &= ~(1 << 5); - return USB_SUCCESS; - } - } - else if (rcp == ENDPOINT_RECIPIENT) - { - uint8_t endpoint = (arg->index & 0x0f); - uint16_t status; - - if (dev_p->current_configuration == 0) - return USB_UNSUPPORT; - - if (arg->len != 0 || (arg->index >> 8) != 0 - || arg->value != ENDPOINT_STALL || endpoint == ENDP0) - return USB_UNSUPPORT; - - if ((arg->index & 0x80)) - status = st103_ep_get_tx_status (endpoint); - else - status = st103_ep_get_rx_status (endpoint); - - if (status == 0) /* Disabled */ - return USB_UNSUPPORT; - - if (arg->index & 0x80) /* IN endpoint */ - st103_ep_clear_dtog_tx (endpoint); - else /* OUT endpoint */ - st103_ep_clear_dtog_rx (endpoint); - - // event?? - return USB_SUCCESS; - } - - return USB_UNSUPPORT; -} - -static int std_set_feature (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_GET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT) - { - if (arg->len != 0 || arg->index != 0) - return USB_UNSUPPORT; - - if (arg->value == DEVICE_REMOTE_WAKEUP) - { - dev_p->current_feature |= 1 << 5; - // event?? - return USB_SUCCESS; - } - } - else if (rcp == ENDPOINT_RECIPIENT) - { - uint8_t endpoint = (arg->index & 0x0f); - uint32_t status; - - if (dev_p->current_configuration == 0) - return USB_UNSUPPORT; - - if (arg->len != 0 || (arg->index >> 8) != 0 - || arg->value != 0 || endpoint == ENDP0) - return USB_UNSUPPORT; - - if ((arg->index & 0x80)) - status = st103_ep_get_tx_status (endpoint); - else - status = st103_ep_get_rx_status (endpoint); - - if (status == 0) /* Disabled */ - return USB_UNSUPPORT; - - if (arg->index & 0x80) - /* IN endpoint */ - st103_ep_set_tx_status (endpoint, EP_TX_STALL); - else - /* OUT endpoint */ - st103_ep_set_rx_status (endpoint, EP_RX_STALL); - - // event?? - return USB_SUCCESS; - } - - return USB_UNSUPPORT; -} - -static int std_set_address (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_GET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT && arg->len == 0 && arg->value <= 127 - && arg->index == 0 && dev_p->current_configuration == 0) - return USB_SUCCESS; - - return USB_UNSUPPORT; -} - -static int std_get_descriptor (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_SET (req)) - return USB_UNSUPPORT; - - return usb_cb_get_descriptor (rcp, (arg->value >> 8), - (arg->value & 0xff), arg); -} - -static int std_get_configuration (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_SET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT) - return usb_lld_reply_request (&dev_p->current_configuration, 1, arg); - - return USB_UNSUPPORT; -} - -static int std_set_configuration (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_GET (req)) - return USB_UNSUPPORT; - - if (rcp == DEVICE_RECIPIENT && arg->index == 0 && arg->len == 0) - return usb_cb_handle_event (USB_EVENT_CONFIG, arg->value); - - return USB_UNSUPPORT; -} - -static int std_get_interface (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_SET (req)) - return USB_UNSUPPORT; - - if (rcp == INTERFACE_RECIPIENT) - { - if (arg->value != 0 || (arg->index >> 8) != 0 || arg->len != 1) - return USB_UNSUPPORT; - - if (dev_p->current_configuration == 0) - return USB_UNSUPPORT; - - return usb_cb_interface (USB_GET_INTERFACE, arg); - } - - return USB_UNSUPPORT; -} - -static int std_set_interface (uint8_t req, struct req_args *arg) -{ - uint8_t rcp = req & RECIPIENT; - - if (USB_SETUP_GET (req) || rcp != INTERFACE_RECIPIENT - || arg->len != 0 || (arg->index >> 8) != 0 - || (arg->value >> 8) != 0 || dev_p->current_configuration == 0) - return USB_UNSUPPORT; - - return usb_cb_interface (USB_SET_INTERFACE, arg); -} - - -static void handle_setup0 (void) -{ - const uint16_t *pw; - uint16_t w; - uint8_t req_no; - int r = USB_UNSUPPORT; - HANDLER handler; - - pw = (uint16_t *)(PMA_ADDR + (uint8_t *)(st103_get_rx_addr (ENDP0) * 2)); - w = *pw++; - - dev_p->bmRequestType = w & 0xff; - dev_p->bRequest = req_no = w >> 8; - pw++; - dev_p->value = *pw++; - pw++; - dev_p->index = *pw++; - pw++; - dev_p->len = *pw; - - data_p->addr = NULL; - data_p->len = 0; - data_p->require_zlp = 0; - - if ((dev_p->bmRequestType & REQUEST_TYPE) == STANDARD_REQUEST) - { - if (req_no < TOTAL_REQUEST) - { - switch (req_no) - { - case 0: handler = std_get_status; break; - case 1: handler = std_clear_feature; break; - case 3: handler = std_set_feature; break; - case 5: handler = std_set_address; break; - case 6: handler = std_get_descriptor; break; - case 8: handler = std_get_configuration; break; - case 9: handler = std_set_configuration; break; - case 10: handler = std_get_interface; break; - case 11: handler = std_set_interface; break; - default: handler = std_none; break; - } - - r = (*handler) (dev_p->bmRequestType, - (struct req_args *)&dev_p->value); - } - } - else - r = usb_cb_setup (dev_p->bmRequestType, req_no, - (struct req_args *)&dev_p->value); - - if (r != USB_SUCCESS) - dev_p->state = STALLED; - else - { - if (USB_SETUP_SET (dev_p->bmRequestType)) - { - if (dev_p->len == 0) - { - dev_p->state = WAIT_STATUS_IN; - st103_set_tx_count (ENDP0, 0); - st103_ep_set_rxtx_status (ENDP0, EP_RX_STALL, EP_TX_VALID); - } - else - { - dev_p->state = OUT_DATA; - st103_ep_set_rx_status (ENDP0, EP_RX_VALID); - } - } - } -} - -static void handle_in0 (void) -{ - if (dev_p->state == IN_DATA || dev_p->state == LAST_IN_DATA) - handle_datastage_in (); - else if (dev_p->state == WAIT_STATUS_IN) - { - if ((dev_p->bRequest == SET_ADDRESS) && - ((dev_p->bmRequestType & (REQUEST_TYPE | RECIPIENT)) - == (STANDARD_REQUEST | DEVICE_RECIPIENT))) - { - st103_set_daddr (dev_p->value); - usb_cb_handle_event (USB_EVENT_ADDRESS, dev_p->value); - } - else - usb_cb_ctrl_write_finish (dev_p->bmRequestType, dev_p->bRequest, - (struct req_args *)&dev_p->value); - - dev_p->state = STALLED; - } - else - dev_p->state = STALLED; -} - -static void handle_out0 (void) -{ - if (dev_p->state == IN_DATA || dev_p->state == LAST_IN_DATA) - /* host aborts the transfer before finish */ - dev_p->state = STALLED; - else if (dev_p->state == OUT_DATA) - handle_datastage_out (); - else if (dev_p->state == WAIT_STATUS_OUT) - dev_p->state = STALLED; - /* Unexpect state, STALL the endpoint */ - else - dev_p->state = STALLED; -} - -static void -usb_handle_transfer (uint16_t istr_value) -{ - uint16_t ep_value = 0; - uint8_t ep_index; - - ep_index = (istr_value & ISTR_EP_ID); - /* Decode and service non control endpoints interrupt */ - /* process related endpoint register */ - ep_value = st103_get_epreg (ep_index); - - if (ep_index == 0) - { - if ((ep_value & EP_CTR_TX)) - { - st103_ep_clear_ctr_tx (ep_index); - handle_in0 (); - } - - if ((ep_value & EP_CTR_RX)) - { - st103_ep_clear_ctr_rx (ep_index); - - if ((ep_value & EP_SETUP)) - handle_setup0 (); - else - handle_out0 (); - } - - if (dev_p->state == STALLED) - st103_ep_set_rxtx_status (ENDP0, EP_RX_STALL, EP_TX_STALL); - } - else - { - if ((ep_value & EP_CTR_RX)) - { - st103_ep_clear_ctr_rx (ep_index); - usb_cb_rx_ready (ep_index); - } - - if ((ep_value & EP_CTR_TX)) - { - st103_ep_clear_ctr_tx (ep_index); - usb_cb_tx_done (ep_index); - } - } -} - -void usb_lld_reset (uint8_t feature) -{ - usb_lld_set_configuration (0); - dev_p->current_feature = feature; - st103_set_btable (); - st103_set_daddr (0); -} - -void usb_lld_txcpy (const void *src, - int ep_num, int offset, size_t len) -{ - usb_lld_to_pmabuf (src, st103_get_tx_addr (ep_num) + offset, len); -} - -void usb_lld_write (uint8_t ep_num, const void *buf, size_t len) -{ - usb_lld_to_pmabuf (buf, st103_get_tx_addr (ep_num), len); - st103_set_tx_count (ep_num, len); - st103_ep_set_tx_status (ep_num, EP_TX_VALID); -} - -void usb_lld_rxcpy (uint8_t *dst, - int ep_num, int offset, size_t len) -{ - usb_lld_from_pmabuf (dst, st103_get_rx_addr (ep_num) + offset, len); -} - -void usb_lld_tx_enable (int ep_num, size_t len) -{ - st103_set_tx_count (ep_num, len); - st103_ep_set_tx_status (ep_num, EP_TX_VALID); -} - -int usb_lld_tx_data_len (int ep_num) -{ - return st103_get_tx_count (ep_num); -} - -int usb_lld_rx_data_len (int ep_num) -{ - return st103_get_rx_count (ep_num); -} - -void usb_lld_stall_tx (int ep_num) -{ - st103_ep_set_tx_status (ep_num, EP_TX_STALL); -} - -void usb_lld_stall_rx (int ep_num) -{ - st103_ep_set_rx_status (ep_num, EP_RX_STALL); -} - -void usb_lld_rx_enable (int ep_num) -{ - st103_ep_set_rx_status (ep_num, EP_RX_VALID); -} - -void usb_lld_setup_endpoint (int ep_num, int ep_type, int ep_kind, - int ep_rx_addr, int ep_tx_addr, - int ep_rx_buf_size) -{ - uint16_t epreg_value = st103_get_epreg (ep_num); - uint16_t ep_rxtx_status = 0; /* Both disabled */ - - /* Clear: Write 1 if 1: EP_DTOG_RX, EP_DTOG_TX */ - /* Set: Write: EP_T_FIELD, EP_KIND, EPADDR_FIELD */ - /* Set: Toggle: EPRX_STAT, EPTX_STAT */ - epreg_value &= (EPRX_STAT | EP_SETUP | EPTX_STAT | EP_DTOG_RX | EP_DTOG_TX); -#if USB_KEEP_CORRECT_TRANSFER_FLAGS - /* Keep: Write 1: EP_CTR_RX, EP_CTR_TX */ - epreg_value |= (EP_CTR_RX|EP_CTR_TX); -#else - /* Clear: Write 0: EP_CTR_RX, EP_CTR_TX */ -#endif - epreg_value |= ep_type; - epreg_value |= ep_kind; - epreg_value |= ep_num; - - if (ep_rx_addr) - { - ep_rxtx_status |= EP_RX_VALID; - st103_set_rx_addr (ep_num, ep_rx_addr); - st103_set_rx_buf_size (ep_num, ep_rx_buf_size); - } - - if (ep_tx_addr) - { - ep_rxtx_status |= EP_TX_NAK; - st103_set_tx_addr (ep_num, ep_tx_addr); - } - - epreg_value ^= (EPRX_DTOG1 & ep_rxtx_status); - epreg_value ^= (EPRX_DTOG2 & ep_rxtx_status); - epreg_value ^= (EPTX_DTOG1 & ep_rxtx_status); - epreg_value ^= (EPTX_DTOG2 & ep_rxtx_status); - - st103_set_epreg (ep_num, epreg_value); -} - -void usb_lld_set_configuration (uint8_t config) -{ - dev_p->current_configuration = config; -} - -uint8_t usb_lld_current_configuration (void) -{ - return dev_p->current_configuration; -} - -void usb_lld_set_data_to_recv (void *p, size_t len) -{ - data_p->addr = p; - data_p->len = len; -} - -void usb_lld_to_pmabuf (const void *src, uint16_t addr, size_t n) -{ - const uint8_t *s = (const uint8_t *)src; - uint16_t *p; - uint16_t w; - - if (n == 0) - return; - - if ((addr & 1)) - { - p = (uint16_t *)(PMA_ADDR + (addr - 1) * 2); - w = *p; - w = (w & 0xff) | (*s++) << 8; - *p = w; - p += 2; - n--; - } - else - p = (uint16_t *)(PMA_ADDR + addr * 2); - - while (n >= 2) - { - w = *s++; - w |= (*s++) << 8; - *p = w; - p += 2; - n -= 2; - } - - if (n > 0) - { - w = *s; - *p = w; - } -} - -void usb_lld_from_pmabuf (void *dst, uint16_t addr, size_t n) -{ - uint8_t *d = (uint8_t *)dst; - uint16_t *p; - uint16_t w; - - if (n == 0) - return; - - if ((addr & 1)) - { - p = (uint16_t *)(PMA_ADDR + (addr - 1) * 2); - w = *p; - *d++ = (w >> 8); - p += 2; - n--; - } - else - p = (uint16_t *)(PMA_ADDR + addr * 2); - - while (n >= 2) - { - w = *p; - *d++ = (w & 0xff); - *d++ = (w >> 8); - p += 2; - n -= 2; - } - - if (n > 0) - { - w = *p; - *d = (w & 0xff); - } -} - - -/* - * BUF: Pointer to data memory. Data memory should not be allocated - * on stack when BUFLEN > USB_MAX_PACKET_SIZE. - * - * BUFLEN: size of the data. - */ -int -usb_lld_reply_request (const void *buf, size_t buflen, struct req_args *ctl) -{ - uint32_t len_asked = ctl->len; - uint32_t len; - - data_p->addr = (void *)buf; - data_p->len = buflen; - - /* Restrict the data length to be the one host asks for */ - if (data_p->len > len_asked) - data_p->len = len_asked; - - if (data_p->len != 0 && (data_p->len % USB_MAX_PACKET_SIZE) == 0) - data_p->require_zlp = 1; - - if (data_p->len < USB_MAX_PACKET_SIZE) - { - len = data_p->len; - dev_p->state = LAST_IN_DATA; - } - else - { - len = USB_MAX_PACKET_SIZE; - dev_p->state = IN_DATA; - } - - if (len) - { - usb_lld_to_pmabuf (data_p->addr, st103_get_tx_addr (ENDP0), len); - data_p->len -= len; - data_p->addr += len; - } - - st103_set_tx_count (ENDP0, len); - st103_ep_set_tx_status (ENDP0, EP_TX_VALID); - return USB_SUCCESS; -} |