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Add support for FS-BB48

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This commit is contained in:
NIIBE Yutaka
2016-04-18 11:46:14 +09:00
parent 92e17d3bdf
commit 82749ab97a
17 changed files with 2403 additions and 16 deletions
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11
ChangeLog
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@@ -1,3 +1,14 @@
2016-04-18 Niibe Yutaka <gniibe@fsij.org>
* example-fs-bb48: New directory for FS-BB48.
* clk_gpio_init-kl.c: New.
* clk_gpio_init-stm32.c: Rename from clk_gpio_init.c.
2016-04-07 Niibe Yutaka <gniibe@fsij.org>
* example-fsm-55/sys.c: Update for non-SVC Chopstx.
2016-04-07 Niibe Yutaka <gniibe@fsij.org>
* example-cdc/usb-cdc.c: Update.

17
NEWS
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@@ -1,6 +1,23 @@
NEWS - Noteworthy changes
* Major changes in Chopstx 0.11
Released 2016-0X-XX
** FS-BB48: Kinetis L MCU
Support for FS-BB48 board with Kinetis L MCU is added.
** No HardFault at context switch on Cortex-M0
By its design, Chopstx does context switch hodling scheduler lock.
This is implemented with the feature of BASEPRI on Cortex-M3. Because
Cortex-M0 doesn't have support of BASEPRI, the context switch (before
version 0.11) always caused HardFault exception. Since Cortex-M0
doesn't have complex exception mechism of ICI/IT (which is supported
on Cortex-M3), it is actually possible to implement the context switch
in user mode. This is done.
* Major changes in Chopstx 0.10
Released 2015-09-15

7
README
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@@ -1,6 +1,6 @@
Chopstx - Threads and only Threads
Version 0.10
2015-09-15
Version 0.11
2016-04-XX
Niibe Yutaka
Flying Stone Technology
@@ -46,6 +46,5 @@ Future Works
============
Convenience function to determine bottom of thread stack, thread local
storage and support of interface like poll/select would be next thing
to be done.
storage would be next thing to be done.
--

5
board/board-fs-bb48.h Normal file
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@@ -0,0 +1,5 @@
#define BOARD_NAME "FS-BB48"
#define BOARD_ID 0xd1f5119c
/* echo -n "FST-01" | sha256sum | sed -e 's/^.*\(........\) -$/\1/' */
#define MCU_KINETIS_L 1

170
clk_gpio_init-kl.c Normal file
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@@ -0,0 +1,170 @@
/*
* clk_gpio_init-kl.c - Clock and GPIO initialization for Kinetis L.
*
* Copyright (C) 2016 Flying Stone Technology
* Author: NIIBE Yutaka <gniibe@fsij.org>
*
* This file is a part of Chopstx, a thread library for embedded.
*
* Chopstx 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.
*
* Chopstx 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/>.
*
* As additional permission under GNU GPL version 3 section 7, you may
* distribute non-source form of the Program without the copy of the
* GNU GPL normally required by section 4, provided you inform the
* receipents of GNU GPL by a written offer.
*
*/
/* System Integration Module. */
struct SIM {
volatile uint32_t SOPT1; /* System Options Register 1 */
volatile uint32_t SOPT1CFG; /* SOPT1 Configuration Register */
uint32_t reserved0[1023]; /* */
volatile uint32_t SOPT2; /* System Options Register 2 */
uint32_t reserved1[1]; /* */
volatile uint32_t SOPT4; /* System Options Register 4 */
volatile uint32_t SOPT5; /* System Options Register 5 */
uint32_t reserved2[1]; /* */
volatile uint32_t SOPT7; /* System Options Register 7 */
uint32_t reserved3[2]; /* */
volatile uint32_t SDID; /* System Device Identification Register */
uint32_t reserved4[3]; /* */
volatile uint32_t SCGC4; /* System Clock Gating Control Register 4 */
volatile uint32_t SCGC5; /* System Clock Gating Control Register 5 */
volatile uint32_t SCGC6; /* System Clock Gating Control Register 6 */
volatile uint32_t SCGC7; /* System Clock Gating Control Register 7 */
volatile uint32_t CLKDIV1; /* System Clock Divider Register 1 */
uint32_t reserved5[1]; /* */
volatile uint32_t FCFG1; /* Flash Configuration Register 1 */
volatile uint32_t FCFG2; /* Flash Configuration Register 2 */
uint32_t reserved6[1]; /* */
volatile uint32_t UIDMH; /* Unique Identification Register Mid-High */
volatile uint32_t UIDML; /* Unique Identification Register Mid Low */
volatile uint32_t UIDL; /* Unique Identification Register Low */
uint32_t reserved7[39]; /* */
volatile uint32_t COPC; /* COP Control Register */
volatile uint32_t SRVCOP; /* Service COP */
};
static struct SIM *const SIM = (struct SIM *const)0x40047000;
struct MCG {
volatile uint8_t C1; /* MCG Control Register 1 */
volatile uint8_t C2; /* MCG Control Register 2 */
uint8_t reserved0[4]; /* */
volatile uint8_t S; /* MCG Status Register */
uint8_t reserved1[1]; /* */
volatile uint8_t SC; /* MCG Status and Control Register */
uint8_t reserved2[15]; /* */
volatile uint8_t MC; /* MCG Miscellaneous Control Register */
};
static struct MCG *const MCG = (struct MCG *const)0x40064000;
struct USB_CLK_RECOVER {
volatile uint8_t CTRL; /* USB Clock */
uint8_t rsvd38[3]; /* recovery control */
volatile uint8_t IRC_EN; /* IRC48M oscillator */
uint8_t rsvd39[3]; /* enable register */
volatile uint8_t INT_EN; /* Clock recovery */
uint8_t rsvd40[3]; /* interrupt enable */
volatile uint8_t INT_STATUS; /* Clock recovery */
/* interrupt status */
};
static struct USB_CLK_RECOVER *const USB_CLK_RECOVER =
(struct USB_CLK_RECOVER *const)0x40072140;
static void __attribute__((used))
clock_init (void)
{
SIM->CLKDIV1 = (SIM->CLKDIV1 & 0xF0070000)
| (1 << 16) /* OUTDIV4 = 001: Divide-by-2 */
;
MCG->MC = 0x80; /* HIRC Enable, LIRC_DIV2=000: Division factor=1 */
MCG->C1 = 0x00; /* Select HIRC clock, LIRC disabled. */
/* Make sure HIRC clock is selected. */
while ((MCG->S & 0x0c) != 0)
;
SIM->SOPT2 = 0x00040060; /* USBSRC=IRC48, CLOKOUTSEL=LPO, RTC-clock */
SIM->SCGC4 = (1 << 18); /* Enable USB FS clock */
SIM->SCGC5 = (1 << 10); /* Enable Port B clock */
SIM->COPC = 0; /* COP disabled */
/* Crystal-less USB setup. */
USB_CLK_RECOVER->IRC_EN = 0x02;
USB_CLK_RECOVER->CTRL = 0x80;
}
struct PORT {
volatile uint32_t PCR0; volatile uint32_t PCR1;
volatile uint32_t PCR2; volatile uint32_t PCR3;
volatile uint32_t PCR4; volatile uint32_t PCR5;
volatile uint32_t PCR6; volatile uint32_t PCR7;
volatile uint32_t PCR8; volatile uint32_t PCR9;
volatile uint32_t PCR10; volatile uint32_t PCR11;
volatile uint32_t PCR12; volatile uint32_t PCR13;
volatile uint32_t PCR14; volatile uint32_t PCR15;
volatile uint32_t PCR16; volatile uint32_t PCR17;
volatile uint32_t PCR18; volatile uint32_t PCR19;
volatile uint32_t PCR20; volatile uint32_t PCR21;
volatile uint32_t PCR22; volatile uint32_t PCR23;
volatile uint32_t PCR24; volatile uint32_t PCR25;
volatile uint32_t PCR26; volatile uint32_t PCR27;
volatile uint32_t PCR28; volatile uint32_t PCR29;
volatile uint32_t PCR30; volatile uint32_t PCR31;
volatile uint32_t GPCLR; volatile uint32_t GPCHR;
uint32_t reserved[6];
volatile uint32_t ISFR;
};
static struct PORT *const PORTB = (struct PORT *const)0x4004A000;
static struct PORT *const PORTD = (struct PORT *const)0x4004C000;
static struct PORT *const PORTE = (struct PORT *const)0x4004D000;
struct GPIO {
volatile uint32_t PDOR; /* Port Data Output Register */
volatile uint32_t PSOR; /* Port Set Output Register */
volatile uint32_t PCOR; /* Port Clear Output Register */
volatile uint32_t PTOR; /* Port Toggle Output Register */
volatile uint32_t PDIR; /* Port Data Input Register */
volatile uint32_t PDDR; /* Port Data Direction Register */
};
static struct GPIO *const GPIOB = (struct GPIO *const)0x400FF040;
static struct GPIO *const GPIOD = (struct GPIO *const)0x400FF0C0;
static struct GPIO *const GPIOE = (struct GPIO *const)0x400FF100;
static void __attribute__((used))
gpio_init (void)
{
PORTB->PCR0 = (1<<8) /* GPIO */
| (0<<6) /* DriveStrengthEnable=0 */
| (0<<4) /* PassiveFilterEnable=0 */
| (1<<2) /* SlewRateEnable = slow */
| (0<<1) /* pull enable = 0 */
| (0<<0) /* puddselect= 0 */
;
PORTB->PCR1 = (1<<8) /* GPIO */
| (0<<6) /* DriveStrengthEnable=0 */
| (0<<4) /* PassiveFilterEnable=0 */
| (1<<2) /* SlewRateEnable = slow */
| (0<<1) /* pull enable = 0 */
| (0<<0) /* puddselect= 0 */
;
GPIOB->PDDR = (1 << 1) | (1 << 0); /* PTB0, PTB1 : Output */
GPIOB->PSOR = (1 << 0); /* PTB0: Set : Light off */
GPIOB->PCOR = (1 << 1); /* PTB1: Clear: Output 0 */
}

2
clk_gpio_init.c → clk_gpio_init-stm32.c
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@@ -1,5 +1,5 @@
/*
* clk_gpio_init.c - Clock and GPIO initialization.
* clk_gpio_init-stm32.c - Clock and GPIO initialization for STM32.
*
* Copyright (C) 2015 Flying Stone Technology
* Author: NIIBE Yutaka <gniibe@fsij.org>

6
entry.c
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@@ -38,7 +38,11 @@
#undef STM32F10X_MD /* Prepare for high density device, too. */
#else
#include "board.h"
#include "clk_gpio_init.c"
#if defined (MCU_KINETIS_L)
#include "clk_gpio_init-kl.c"
#else
#include "clk_gpio_init-stm32.c"
#endif
#endif

31
example-fs-bb48/Makefile Normal file
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@@ -0,0 +1,31 @@
# Makefile for example application of Chopstx
PROJECT = sample
### Currently, it's for FS-BB48.
CHOPSTX = ..
LDSCRIPT= sample.ld
CSRC = sample.c reset.c usb_kl27z.c usb-cdc.c
###################################
CROSS = arm-none-eabi-
CC = $(CROSS)gcc
LD = $(CROSS)gcc
OBJCOPY = $(CROSS)objcopy
MCU = cortex-m0plus
CWARN = -Wall -Wextra -Wstrict-prototypes
DEFS = -DMAKE_ENTRY_PUBLIC -DFREE_STANDING -DMHZ=48
OPT = -O3 -Os -g
LIBS =
####################
include ../rules.mk
board.h:
@echo Please make a symbolic link \'board.h\' to a file in ../board;
@exit 1
distclean: clean
rm -f board.h

1
example-fs-bb48/board.h Symbolic link
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@@ -0,0 +1 @@
../board/board-fs-bb48.h

114
example-fs-bb48/reset.c Normal file
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@@ -0,0 +1,114 @@
/*
* sys.c - No system routines, but only RESET handler for MKL27Z256.
*
* Copyright (C) 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.
*
*/
#include <stdint.h>
#include <stdlib.h>
static void __attribute__ ((naked))
reset (void)
{
asm volatile ("cpsid i\n\t" /* Mask all interrupts. */
"mov r0, pc\n\t" /* r0 = PC & ~0x0fff */
"mov r1, #0x10\n\t"
"lsl r1, #8\n\t"
"sub r1, r1, #1\n\t"
"bic r0, r0, r1\n\t"
"ldr r2, [r0]\n\t"
"msr MSP, r2\n\t" /* Main (exception handler) stack. */
"b entry\n\t"
: /* no output */ : /* no input */ : "memory");
/* Never reach here. */
}
extern uint8_t __main_stack_end__;
extern void preempt (void);
extern void chx_timer_expired (void);
extern void chx_handle_intr (void);
static void nmi (void)
{
for (;;);
}
static void __attribute__ ((naked))
hard_fault (void)
{
for (;;);
}
static void mem_manage (void)
{
for (;;);
}
static void bus_fault (void)
{
for (;;);
}
static void usage_fault (void)
{
for (;;);
}
static void none (void)
{
}
typedef void (*handler)(void);
extern uint8_t __main_stack_end__;
handler vector[] __attribute__ ((section(".vectors"))) = {
(handler)(&__main_stack_end__ - 32),
reset,
nmi, /* nmi */
hard_fault, /* hard fault */
/* 0x10 */
mem_manage, /* mem manage */
bus_fault, /* bus fault */
usage_fault, /* usage fault */
none,
/* 0x20 */
none, none, none, /* reserved */
none, /* SVCall */
none, /* Debug */
none, /* reserved */
preempt, /* PendSV */
chx_timer_expired, /* SysTick */
/* 0x40 */
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
/* 0x60 */
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
/* 0x80 */
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
/* 0xA0 */
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr,
/* 0xc0 */
};
uint32_t flash_config[] __attribute__ ((section(".flash_config"))) = {
0xffffffff, 0xffffffff, /* Backdoor comparison key. */
0xffffffff, /* Protection bytes */
0xffff3ffe, /* FSEC=0xfe, FOPT=0x3f */
/* FOPT=0x3f:
* BOOTSRC_SEL=00: Boot from flash
*/
/* FSEC=0xfe:
* unsecure
*/
};

228
example-fs-bb48/sample.c Normal file
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@@ -0,0 +1,228 @@
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <chopstx.h>
#include "usb_lld.h"
#include "stream.h"
#include "board.h"
struct GPIO {
volatile uint32_t PDOR; /* Port Data Output Register */
volatile uint32_t PSOR; /* Port Set Output Register */
volatile uint32_t PCOR; /* Port Clear Output Register */
volatile uint32_t PTOR; /* Port Toggle Output Register */
volatile uint32_t PDIR; /* Port Data Input Register */
volatile uint32_t PDDR; /* Port Data Direction Register */
};
static struct GPIO *const GPIOB = (struct GPIO *const)0x400FF040;
static struct GPIO *const GPIOD = (struct GPIO *const)0x400FF0C0;
static struct GPIO *const GPIOE = (struct GPIO *const)0x400FF100;
static void
set_led (int on)
{
if (on)
GPIOB->PCOR = (1 << 0); /* PTB0: Clear: Light on */
else
GPIOB->PSOR = (1 << 0); /* PTB0: Set : Light off */
}
static chopstx_mutex_t mtx;
static chopstx_cond_t cnd0;
static chopstx_cond_t cnd1;
uint8_t u;
static uint8_t v;
static uint8_t m; /* 0..100 */
static void
wait_for (uint32_t usec)
{
#if defined(BUSY_LOOP)
uint32_t count = usec * 6;
uint32_t i;
for (i = 0; i < count; i++)
asm volatile ("" : : "r" (i) : "memory");
#else
chopstx_usec_wait (usec);
#endif
}
static void *
pwm (void *arg)
{
(void)arg;
chopstx_mutex_lock (&mtx);
chopstx_cond_wait (&cnd0, &mtx);
chopstx_mutex_unlock (&mtx);
while (1)
{
set_led (u&v);
wait_for (m);
set_led (0);
wait_for (100-m);
}
return NULL;
}
static void *
blk (void *arg)
{
(void)arg;
chopstx_mutex_lock (&mtx);
chopstx_cond_wait (&cnd1, &mtx);
chopstx_mutex_unlock (&mtx);
while (1)
{
v = 0;
wait_for (200*1000);
v = 1;
wait_for (200*1000);
}
return NULL;
}
#define INTR_REQ_USB 24
static void *
usb_intr (void *arg)
{
extern void usb_lld_init (uint8_t feature);
extern void usb_interrupt_handler (void);
chopstx_intr_t interrupt;
(void)arg;
chopstx_claim_irq (&interrupt, INTR_REQ_USB);
usb_lld_init (0x80); /* Bus powered. */
while (1)
{
chopstx_intr_wait (&interrupt);
/* Process interrupt. */
usb_interrupt_handler ();
}
chopstx_release_irq (&interrupt);
return NULL;
}
#if defined(BUSY_LOOP)
#define PRIO_PWM (CHOPSTX_SCHED_RR|1)
#define PRIO_BLK (CHOPSTX_SCHED_RR|1)
#else
#define PRIO_PWM 3
#define PRIO_BLK 2
#endif
#define PRIO_INTR 4
extern uint8_t __process1_stack_base__, __process1_stack_size__;
extern uint8_t __process2_stack_base__, __process2_stack_size__;
extern uint8_t __process3_stack_base__, __process3_stack_size__;
const uint32_t __stackaddr_pwm = (uint32_t)&__process1_stack_base__;
const size_t __stacksize_pwm = (size_t)&__process1_stack_size__;
const uint32_t __stackaddr_blk = (uint32_t)&__process2_stack_base__;
const size_t __stacksize_blk = (size_t)&__process2_stack_size__;
const uint32_t __stackaddr_intr = (uint32_t)&__process3_stack_base__;
const size_t __stacksize_intr = (size_t)&__process3_stack_size__;
static char hexchar (uint8_t x)
{
if (x <= 0x09)
return '0' + x;
else if (x <= 0x0f)
return 'a' + x - 10;
else
return '?';
}
int
main (int argc, const char *argv[])
{
struct stream *st;
uint8_t count;
extern uint32_t bDeviceState;
(void)argc;
(void)argv;
chopstx_mutex_init (&mtx);
chopstx_cond_init (&cnd0);
chopstx_cond_init (&cnd1);
st = stream_open ();
m = 10;
chopstx_create (PRIO_PWM, __stackaddr_pwm, __stacksize_pwm, pwm, NULL);
chopstx_create (PRIO_BLK, __stackaddr_blk, __stacksize_blk, blk, NULL);
chopstx_create (PRIO_INTR, __stackaddr_intr, __stacksize_intr,
usb_intr, NULL);
chopstx_usec_wait (200*1000);
chopstx_mutex_lock (&mtx);
chopstx_cond_signal (&cnd0);
chopstx_cond_signal (&cnd1);
chopstx_mutex_unlock (&mtx);
u = 1;
while (bDeviceState != CONFIGURED)
chopstx_usec_wait (500*1000);
count = 0;
while (1)
{
uint8_t s[64];
if (stream_wait_connection (st) < 0)
{
chopstx_usec_wait (1000*1000);
continue;
}
chopstx_usec_wait (500*1000);
/* Send ZLP at the beginning. */
stream_send (st, s, 0);
memcpy (s, "xx: Hello, World with Chopstx!\r\n\000", 32);
s[0] = hexchar (count >> 4);
s[1] = hexchar (count & 0x0f);
count++;
if (stream_send (st, s, 32) < 0)
continue;
while (1)
{
int size = stream_recv (st, s);
if (size < 0)
break;
if (size >= 0)
{
if (stream_send (st, s, size) < 0)
break;
}
u ^= 1;
}
}
return 0;
}

135
example-fs-bb48/sample.ld Normal file
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@@ -0,0 +1,135 @@
/*
* MK27Z memory setup.
*/
__main_stack_size__ = 0x0100; /* Exception handlers */
__process0_stack_size__ = 0x0300; /* Main program */
__process1_stack_size__ = 0x0200; /* first thread program */
__process2_stack_size__ = 0x0100; /* second thread program */
__process3_stack_size__ = 0x0200; /* third thread program */
MEMORY
{
flash : org = 0x00000000, len = 256k
ram : org = 0x1fffe000, len = 32k
}
__ram_start__ = ORIGIN(ram);
__ram_size__ = 32k;
__ram_end__ = __ram_start__ + __ram_size__;
SECTIONS
{
. = 0;
_text = .;
.text : ALIGN(16) SUBALIGN(16)
{
KEEP(*(.vectors))
. = ALIGN(1024);
KEEP(*(.flash_config))
. = ALIGN(16);
*(.text.svc)
*(.text.sched)
*(.text.preempt)
*(.text.startup.*)
*(.text)
*(.text.*)
*(.rodata)
*(.rodata.*)
*(.glue_7t)
*(.glue_7)
*(.gcc*)
. = ALIGN(8);
} > flash
/DISCARD/ :
{
*(.startup.vectors)
*(.bss.startup.0)
}
.ARM.extab : {*(.ARM.extab* .gnu.linkonce.armextab.*)} > flash
.ARM.exidx : {
PROVIDE(__exidx_start = .);
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
PROVIDE(__exidx_end = .);
} > flash
.eh_frame_hdr : {*(.eh_frame_hdr)} > flash
.eh_frame : ONLY_IF_RO {*(.eh_frame)} > flash
.textalign : ONLY_IF_RO { . = ALIGN(8); } > flash
_etext = .;
_textdata = _etext;
.process_stack :
{
. = ALIGN(8);
__process3_stack_base__ = .;
. += __process3_stack_size__;
. = ALIGN(8);
__process3_stack_end__ = .;
__process2_stack_base__ = .;
. += __process2_stack_size__;
. = ALIGN(8);
__process2_stack_end__ = .;
__process1_stack_base__ = .;
. += __process1_stack_size__;
. = ALIGN(8);
__process1_stack_end__ = .;
__process0_stack_base__ = .;
. += __process0_stack_size__;
. = ALIGN(8);
__process0_stack_end__ = .;
} > ram
.main_stack :
{
. = ALIGN(8);
__main_stack_base__ = .;
. += __main_stack_size__;
. = ALIGN(8);
__main_stack_end__ = .;
} > ram
.data :
{
. = ALIGN(512);
__usb_bdt__ = .;
. += 512;
__usb_buf__ = .;
. += 8 /*control write*/ + 64 /*control read*/ + 64 + 64 + 8;
. = ALIGN(4);
PROVIDE(_data = .);
*(.data)
. = ALIGN(4);
*(.data.*)
. = ALIGN(4);
*(.ramtext)
. = ALIGN(4);
PROVIDE(_edata = .);
} > ram AT > flash
.bss :
{
. = ALIGN(4);
PROVIDE(_bss_start = .);
*(.bss)
. = ALIGN(4);
*(.bss.*)
. = ALIGN(4);
*(COMMON)
. = ALIGN(4);
PROVIDE(_bss_end = .);
} > ram
PROVIDE(end = .);
_end = .;
}
__heap_base__ = _end;
__heap_end__ = __ram_end__;

24
example-fs-bb48/stream.h Normal file
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@@ -0,0 +1,24 @@
#define BUFSIZE 128
#define FLAG_CONNECTED (1 << 0)
#define FLAG_SEND_AVAIL (1 << 1)
#define FLAG_RECV_AVAIL (1 << 2)
/*
* Current implementation is synchronous and buffers are not yet used.
*/
struct stream {
chopstx_mutex_t mtx;
chopstx_cond_t cnd;
uint8_t buf_send[BUFSIZE]; /* Not yet used. */
uint8_t buf_recv[BUFSIZE]; /* Not yet used. */
uint8_t cnt_send_head; /* Not yet used. */
uint8_t cnt_send_tail; /* Not yet used. */
uint8_t cnt_recv_head; /* Not yet used. */
uint8_t cnt_recv_tail; /* Not yet used. */
uint32_t flags;
};
struct stream *stream_open (void);
int stream_wait_connection (struct stream *st);
int stream_send (struct stream *st, uint8_t *buf, uint8_t count);
int stream_recv (struct stream *st, uint8_t *buf);

506
example-fs-bb48/usb-cdc.c Normal file
View File

@@ -0,0 +1,506 @@
#include <stdint.h>
#include <stdlib.h>
#include <chopstx.h>
#include "usb_lld.h"
#include "stream.h"
static struct stream stream;
#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
/* USB Device Descriptor */
static const uint8_t vcom_device_desc[18] = {
18, /* bLength */
DEVICE_DESCRIPTOR, /* bDescriptorType */
0x10, 0x01, /* bcdUSB = 1.1 */
0x02, /* bDeviceClass (CDC). */
0x00, /* bDeviceSubClass. */
0x00, /* bDeviceProtocol. */
0x40, /* bMaxPacketSize. */
0xFF, 0xFF, /* idVendor */
0x01, 0x00, /* idProduct */
0x00, 0x01, /* bcdDevice */
1, /* iManufacturer. */
2, /* iProduct. */
3, /* iSerialNumber. */
1 /* bNumConfigurations. */
};
/* Configuration Descriptor tree for a CDC.*/
static const uint8_t vcom_config_desc[67] = {
9,
CONFIG_DESCRIPTOR, /* bDescriptorType: Configuration */
/* Configuration Descriptor.*/
67, 0x00, /* wTotalLength. */
0x02, /* bNumInterfaces. */
0x01, /* bConfigurationValue. */
0, /* iConfiguration. */
0x80, /* bmAttributes (bus powered). */
50, /* bMaxPower (100mA). */
/* Interface Descriptor.*/
9,
INTERFACE_DESCRIPTOR,
0x00, /* bInterfaceNumber. */
0x00, /* bAlternateSetting. */
0x01, /* bNumEndpoints. */
0x02, /* bInterfaceClass (Communications Interface Class,
CDC section 4.2). */
0x02, /* bInterfaceSubClass (Abstract Control Model, CDC
section 4.3). */
0x01, /* bInterfaceProtocol (AT commands, CDC section
4.4). */
0, /* iInterface. */
/* Header Functional Descriptor (CDC section 5.2.3).*/
5, /* bLength. */
0x24, /* bDescriptorType (CS_INTERFACE). */
0x00, /* bDescriptorSubtype (Header Functional Descriptor). */
0x10, 0x01, /* bcdCDC. */
/* Call Management Functional Descriptor. */
5, /* bFunctionLength. */
0x24, /* bDescriptorType (CS_INTERFACE). */
0x01, /* bDescriptorSubtype (Call Management Functional
Descriptor). */
0x03, /* bmCapabilities (D0+D1). */
0x01, /* bDataInterface. */
/* ACM Functional Descriptor.*/
4, /* bFunctionLength. */
0x24, /* bDescriptorType (CS_INTERFACE). */
0x02, /* bDescriptorSubtype (Abstract Control Management
Descriptor). */
0x02, /* bmCapabilities. */
/* Union Functional Descriptor.*/
5, /* bFunctionLength. */
0x24, /* bDescriptorType (CS_INTERFACE). */
0x06, /* bDescriptorSubtype (Union Functional
Descriptor). */
0x00, /* bMasterInterface (Communication Class
Interface). */
0x01, /* bSlaveInterface0 (Data Class Interface). */
/* Endpoint 2 Descriptor.*/
7,
ENDPOINT_DESCRIPTOR,
ENDP2|0x80, /* bEndpointAddress. */
0x03, /* bmAttributes (Interrupt). */
0x08, 0x00, /* wMaxPacketSize. */
0xFF, /* bInterval. */
/* Interface Descriptor.*/
9,
INTERFACE_DESCRIPTOR, /* bDescriptorType: */
0x01, /* bInterfaceNumber. */
0x00, /* bAlternateSetting. */
0x02, /* bNumEndpoints. */
0x0A, /* bInterfaceClass (Data Class Interface, CDC section 4.5). */
0x00, /* bInterfaceSubClass (CDC section 4.6). */
0x00, /* bInterfaceProtocol (CDC section 4.7). */
0x00, /* iInterface. */
/* Endpoint 3 Descriptor.*/
7,
ENDPOINT_DESCRIPTOR, /* bDescriptorType: Endpoint */
ENDP3, /* bEndpointAddress. */
0x02, /* bmAttributes (Bulk). */
0x40, 0x00, /* wMaxPacketSize. */
0x00, /* bInterval. */
/* Endpoint 1 Descriptor.*/
7,
ENDPOINT_DESCRIPTOR, /* bDescriptorType: Endpoint */
ENDP1|0x80, /* bEndpointAddress. */
0x02, /* bmAttributes (Bulk). */
0x40, 0x00, /* wMaxPacketSize. */
0x00 /* bInterval. */
};
/*
* U.S. English language identifier.
*/
static const uint8_t vcom_string0[4] = {
4, /* bLength */
STRING_DESCRIPTOR,
0x09, 0x04 /* LangID = 0x0409: US-English */
};
static const uint8_t vcom_string1[] = {
23*2+2, /* bLength */
STRING_DESCRIPTOR, /* bDescriptorType */
/* Manufacturer: "Flying Stone Technology" */
'F', 0, 'l', 0, 'y', 0, 'i', 0, 'n', 0, 'g', 0, ' ', 0, 'S', 0,
't', 0, 'o', 0, 'n', 0, 'e', 0, ' ', 0, 'T', 0, 'e', 0, 'c', 0,
'h', 0, 'n', 0, 'o', 0, 'l', 0, 'o', 0, 'g', 0, 'y', 0,
};
static const uint8_t vcom_string2[] = {
14*2+2, /* bLength */
STRING_DESCRIPTOR, /* bDescriptorType */
/* Product name: "Chopstx Sample" */
'C', 0, 'h', 0, 'o', 0, 'p', 0, 's', 0, 't', 0, 'x', 0, ' ', 0,
'S', 0, 'a', 0, 'm', 0, 'p', 0, 'l', 0, 'e', 0,
};
/*
* Serial Number string.
*/
static const uint8_t vcom_string3[28] = {
28, /* bLength */
STRING_DESCRIPTOR, /* bDescriptorType */
'0', 0, '.', 0, '0', 0, '0', 0, /* Version number */
};
#define NUM_INTERFACES 2
uint32_t bDeviceState = UNCONNECTED; /* USB device status */
void
usb_cb_device_reset (void)
{
usb_lld_reset (vcom_config_desc[7]);
/* Initialize Endpoint 0 */
usb_lld_setup_endpoint (ENDP0, 1, 1);
chopstx_mutex_lock (&stream.mtx);
stream.flags = 0;
bDeviceState = ATTACHED;
chopstx_mutex_unlock (&stream.mtx);
}
#define CDC_CTRL_DTR 0x0001
void
usb_cb_ctrl_write_finish (uint8_t req, uint8_t req_no, struct req_args *arg)
{
uint8_t type_rcp = req & (REQUEST_TYPE|RECIPIENT);
if (type_rcp == (CLASS_REQUEST | INTERFACE_RECIPIENT)
&& USB_SETUP_SET (req) && req_no == USB_CDC_REQ_SET_CONTROL_LINE_STATE)
{
/* Open/close the connection. */
chopstx_mutex_lock (&stream.mtx);
stream.flags &= ~FLAG_CONNECTED;
stream.flags |= ((arg->value & CDC_CTRL_DTR) != 0)? FLAG_CONNECTED : 0;
chopstx_cond_signal (&stream.cnd);
chopstx_mutex_unlock (&stream.mtx);
}
}
struct line_coding
{
uint32_t bitrate;
uint8_t format;
uint8_t paritytype;
uint8_t datatype;
} __attribute__((packed));
static struct line_coding line_coding = {
115200, /* baud rate: 115200 */
0x00, /* stop bits: 1 */
0x00, /* parity: none */
0x08 /* bits: 8 */
};
static int
vcom_port_data_setup (uint8_t req, uint8_t req_no, struct req_args *arg)
{
if (USB_SETUP_GET (req))
{
if (req_no == USB_CDC_REQ_GET_LINE_CODING)
return usb_lld_reply_request (&line_coding, sizeof(line_coding), arg);
}
else /* USB_SETUP_SET (req) */
{
if (req_no == USB_CDC_REQ_SET_LINE_CODING
&& arg->len == sizeof (line_coding))
{
usb_lld_set_data_to_recv (&line_coding, sizeof (line_coding));
return USB_SUCCESS;
}
else if (req_no == USB_CDC_REQ_SET_CONTROL_LINE_STATE)
return USB_SUCCESS;
}
return USB_UNSUPPORT;
}
int
usb_cb_setup (uint8_t req, uint8_t req_no, struct req_args *arg)
{
uint8_t type_rcp = req & (REQUEST_TYPE|RECIPIENT);
if (type_rcp == (CLASS_REQUEST | INTERFACE_RECIPIENT) && arg->index == 0)
return vcom_port_data_setup (req, req_no, arg);
return USB_UNSUPPORT;
}
int
usb_cb_get_descriptor (uint8_t rcp, uint8_t desc_type, uint8_t desc_index,
struct req_args *arg)
{
if (rcp != DEVICE_RECIPIENT)
return USB_UNSUPPORT;
if (desc_type == DEVICE_DESCRIPTOR)
return usb_lld_reply_request (vcom_device_desc, sizeof (vcom_device_desc),
arg);
else if (desc_type == CONFIG_DESCRIPTOR)
return usb_lld_reply_request (vcom_config_desc, sizeof (vcom_config_desc),
arg);
else if (desc_type == STRING_DESCRIPTOR)
{
const uint8_t *str;
int size;
switch (desc_index)
{
case 0:
str = vcom_string0;
size = sizeof (vcom_string0);
break;
case 1:
str = vcom_string1;
size = sizeof (vcom_string1);
break;
case 2:
str = vcom_string2;
size = sizeof (vcom_string2);
break;
case 3:
str = vcom_string3;
size = sizeof (vcom_string3);
break;
default:
return USB_UNSUPPORT;
}
return usb_lld_reply_request (str, size, arg);
}
return USB_UNSUPPORT;
}
static void
vcom_setup_endpoints_for_interface (uint16_t interface, int stop)
{
if (interface == 0)
{
if (!stop)
usb_lld_setup_endpoint (ENDP2, 0, 1);
else
usb_lld_stall (ENDP2);
}
else if (interface == 1)
{
if (!stop)
{
usb_lld_setup_endpoint (ENDP1, 0, 1);
usb_lld_setup_endpoint (ENDP3, 1, 0);
#if 0
/* Start with no data receiving */
usb_lld_stall (ENDP3);
#endif
}
else
{
usb_lld_stall (ENDP1);
usb_lld_stall (ENDP3);
}
}
}
int
usb_cb_handle_event (uint8_t event_type, uint16_t value)
{
int i;
uint8_t current_conf;
switch (event_type)
{
case USB_EVENT_ADDRESS:
bDeviceState = ADDRESSED;
return USB_SUCCESS;
case USB_EVENT_CONFIG:
current_conf = usb_lld_current_configuration ();
if (current_conf == 0)
{
if (value != 1)
return USB_UNSUPPORT;
usb_lld_set_configuration (1);
for (i = 0; i < NUM_INTERFACES; i++)
vcom_setup_endpoints_for_interface (i, 0);
bDeviceState = CONFIGURED;
}
else if (current_conf != value)
{
if (value != 0)
return USB_UNSUPPORT;
usb_lld_set_configuration (0);
for (i = 0; i < NUM_INTERFACES; i++)
vcom_setup_endpoints_for_interface (i, 1);
bDeviceState = ADDRESSED;
}
/* Do nothing when current_conf == value */
return USB_SUCCESS;
return USB_SUCCESS;
default:
break;
}
return USB_UNSUPPORT;
}
int
usb_cb_interface (uint8_t cmd, struct req_args *arg)
{
const uint8_t zero = 0;
uint16_t interface = arg->index;
uint16_t alt = arg->value;
if (interface >= NUM_INTERFACES)
return USB_UNSUPPORT;
switch (cmd)
{
case USB_SET_INTERFACE:
if (alt != 0)
return USB_UNSUPPORT;
else
{
vcom_setup_endpoints_for_interface (interface, 0);
return USB_SUCCESS;
}
case USB_GET_INTERFACE:
return usb_lld_reply_request (&zero, 1, arg);
default:
case USB_QUERY_INTERFACE:
return USB_SUCCESS;
}
}
void
usb_cb_tx_done (uint8_t ep_num)
{
if (ep_num == ENDP1)
{
chopstx_mutex_lock (&stream.mtx);
if ((stream.flags & FLAG_SEND_AVAIL))
{
stream.flags &= ~FLAG_SEND_AVAIL;
chopstx_cond_signal (&stream.cnd);
}
chopstx_mutex_unlock (&stream.mtx);
}
else if (ep_num == ENDP2)
{
}
}
void
usb_cb_rx_ready (uint8_t ep_num)
{
if (ep_num == ENDP3)
{
chopstx_mutex_lock (&stream.mtx);
if ((stream.flags & FLAG_RECV_AVAIL) == 0)
{
stream.flags |= FLAG_RECV_AVAIL;
chopstx_cond_signal (&stream.cnd);
}
chopstx_mutex_unlock (&stream.mtx);
}
}
struct stream *
stream_open (void)
{
chopstx_mutex_init (&stream.mtx);
chopstx_cond_init (&stream.cnd);
return &stream;
}
int
stream_wait_connection (struct stream *st)
{
chopstx_mutex_lock (&st->mtx);
while ((stream.flags & FLAG_CONNECTED) == 0)
chopstx_cond_wait (&st->cnd, &st->mtx);
chopstx_mutex_unlock (&st->mtx);
stream.flags &= ~FLAG_SEND_AVAIL;
return 0;
}
int
stream_send (struct stream *st, uint8_t *buf, uint8_t count)
{
int r = 0;
chopstx_mutex_lock (&st->mtx);
if ((stream.flags & FLAG_CONNECTED) == 0)
r = -1;
else
{
usb_lld_tx_enable (ENDP1, buf, count);
stream.flags |= FLAG_SEND_AVAIL;
do
{
chopstx_cond_wait (&st->cnd, &st->mtx);
if ((stream.flags & FLAG_SEND_AVAIL) == 0)
break;
else if ((stream.flags & FLAG_CONNECTED) == 0)
{
r = -1;
break;
}
}
while (1);
}
chopstx_mutex_unlock (&st->mtx);
return r;
}
int
stream_recv (struct stream *st, uint8_t *buf)
{
int r;
chopstx_mutex_lock (&st->mtx);
if ((stream.flags & FLAG_CONNECTED) == 0)
r = -1;
else
{
usb_lld_rx_enable (ENDP3, buf, 64);
stream.flags &= ~FLAG_RECV_AVAIL;
do
{
chopstx_cond_wait (&st->cnd, &st->mtx);
if ((stream.flags & FLAG_RECV_AVAIL))
{
r = usb_lld_rx_data_len (ENDP3);
break;
}
else if ((stream.flags & FLAG_CONNECTED) == 0)
{
r = -1;
break;
}
}
while (1);
}
chopstx_mutex_unlock (&st->mtx);
return r;
}

1035
example-fs-bb48/usb_kl27z.c Normal file
View File

File diff suppressed because it is too large Load Diff

115
example-fs-bb48/usb_lld.h Normal file
View File

@@ -0,0 +1,115 @@
#define STANDARD_ENDPOINT_DESC_SIZE 0x09
/* endpoints enumeration */
#define ENDP0 ((uint8_t)0)
#define ENDP1 ((uint8_t)1)
#define ENDP2 ((uint8_t)2)
#define ENDP3 ((uint8_t)3)
#define ENDP4 ((uint8_t)4)
#define ENDP5 ((uint8_t)5)
#define ENDP6 ((uint8_t)6)
#define ENDP7 ((uint8_t)7)
/* EP_TYPE[1:0] EndPoint TYPE */
#define EP_BULK (0x0000) /* EndPoint BULK */
#define EP_CONTROL (0x0200) /* EndPoint CONTROL */
#define EP_ISOCHRONOUS (0x0400) /* EndPoint ISOCHRONOUS */
#define EP_INTERRUPT (0x0600) /* EndPoint INTERRUPT */
enum RECIPIENT_TYPE
{
DEVICE_RECIPIENT, /* Recipient device */
INTERFACE_RECIPIENT, /* Recipient interface */
ENDPOINT_RECIPIENT, /* Recipient endpoint */
OTHER_RECIPIENT
};
enum DESCRIPTOR_TYPE
{
DEVICE_DESCRIPTOR = 1,
CONFIG_DESCRIPTOR,
STRING_DESCRIPTOR,
INTERFACE_DESCRIPTOR,
ENDPOINT_DESCRIPTOR
};
#define REQUEST_DIR 0x80 /* Mask to get request dir */
#define REQUEST_TYPE 0x60 /* Mask to get request type */
#define STANDARD_REQUEST 0x00 /* Standard request */
#define CLASS_REQUEST 0x20 /* Class request */
#define VENDOR_REQUEST 0x40 /* Vendor request */
#define RECIPIENT 0x1F /* Mask to get recipient */
#define USB_SETUP_SET(req) ((req & REQUEST_DIR) == 0)
#define USB_SETUP_GET(req) ((req & REQUEST_DIR) != 0)
enum
{
USB_UNSUPPORT = 0,
USB_SUCCESS = 1,
};
struct req_args {
uint16_t value;
uint16_t index;
uint16_t len;
};
void usb_cb_device_reset (void);
int usb_cb_setup (uint8_t req, uint8_t req_no, struct req_args *arg);
int usb_cb_interface (uint8_t cmd, struct req_args *arg);
int usb_cb_get_descriptor (uint8_t rcp, uint8_t desc_type, uint8_t desc_index,
struct req_args *arg);
int usb_cb_handle_event (uint8_t event_type, uint16_t value);
void usb_cb_ctrl_write_finish (uint8_t req, uint8_t req_no,
struct req_args *arg);
void usb_cb_tx_done (uint8_t ep_num);
void usb_cb_rx_ready (uint8_t ep_num);
enum {
USB_EVENT_ADDRESS,
USB_EVENT_CONFIG,
USB_EVENT_SUSPEND,
USB_EVENT_WAKEUP,
USB_EVENT_STALL,
};
enum {
USB_SET_INTERFACE,
USB_GET_INTERFACE,
USB_QUERY_INTERFACE,
};
enum DEVICE_STATE
{
UNCONNECTED,
ATTACHED,
POWERED,
SUSPENDED,
ADDRESSED,
CONFIGURED
};
void usb_lld_init (uint8_t feature);
int usb_lld_reply_request (const void *buf, size_t buflen,
struct req_args *arg);
void usb_lld_set_data_to_recv (void *p, size_t len);
void usb_lld_tx_enable (uint8_t ep_num, const void *buf, size_t len);
int usb_lld_tx_result (int ep_num);
void usb_lld_rx_enable (int ep_num, void *buf, size_t len);
int usb_lld_rx_data_len (int ep_num);
void usb_lld_stall (int ep_num);
void usb_lld_reset (uint8_t feature);
void usb_lld_setup_endpoint (int n, int rx_en, int tx_en);
void usb_lld_set_configuration (uint8_t config);
uint8_t usb_lld_current_configuration (void);
void usb_lld_prepare_shutdown (void);
void usb_lld_shutdown (void);
void usb_interrupt_handler (void);

12
example-fsm-55/sys.c
View File

@@ -31,7 +31,6 @@ reset (void)
}
extern uint8_t __main_stack_end__;
extern void svc (void);
extern void preempt (void);
extern void chx_timer_expired (void);
extern void chx_handle_intr (void);
@@ -44,14 +43,7 @@ static void nmi (void)
static void __attribute__ ((naked))
hard_fault (void)
{
register uint32_t primask;
asm ("mrs %0, PRIMASK" : "=r" (primask));
if (primask)
asm volatile ("b svc");
else
for (;;);
for (;;);
}
static void mem_manage (void)
@@ -89,7 +81,7 @@ handler vector[] __attribute__ ((section(".vectors"))) = {
none,
/* 0x20 */
none, none, none, /* reserved */
svc, /* SVCall */
none, /* SVCall */
none, /* Debug */
none, /* reserved */
preempt, /* PendSV */