Move CHIP specific things to mcu/

author: NIIBE Yutaka <gniibe@fsij.org> 2016-05-30 14:39:02 +0900
committer: NIIBE Yutaka <gniibe@fsij.org> 2016-05-30 14:39:02 +0900
commit: b90e58f763bd277b7a5285601a34818f44f2b01c (patch)
tree: 4535e6abc8b77d58215796c240489e7dbf499b44 /example-fs-bb48
parent: 8209f3875510d1990142a367c8bab6164c2f82cc (diff)
8 files changed, 16 insertions, 1821 deletions
diff --git a/example-fs-bb48/Makefile b/example-fs-bb48/Makefile
index 52782cc..06a68bd 100644
--- a/example-fs-bb48/Makefile
+++ b/example-fs-bb48/Makefile
@@ -6,7 +6,12 @@ PROJECT = sample
 
 CHOPSTX = ..
 LDSCRIPT= sample.ld
-CSRC = sample.c sys.c usb_kl27z.c usb-cdc.c adc_kl27z.c command.c
+CSRC = sample.c usb-cdc.c command.c
+CHIP=mkl27z
+
+USE_SYS = yes
+USE_USB = yes
+USE_ADC = yes
 
 ###################################
 CROSS = arm-none-eabi-
diff --git a/example-fs-bb48/adc_kl27z.c b/example-fs-bb48/adc_kl27z.c
deleted file mode 100644
index de482bb..0000000
--- a/example-fs-bb48/adc_kl27z.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * adc_kl27z.c - ADC driver for KL27Z
- *               In this ADC driver, there are NeuG specific parts.
- *               It only records lower 8-bit of 16-bit data.
- *               You need to modify to use this as generic ADC driver.
- *
- * 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.
- *
- */
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <chopstx.h>
-#include <mcu/kl_sim.h>
-
-struct DMAMUX {
-  volatile uint32_t CHCFG0;
-  volatile uint32_t CHCFG1;
-  volatile uint32_t CHCFG2;
-  volatile uint32_t CHCFG3;
-};
-static struct DMAMUX *const DMAMUX = (struct DMAMUX *const)0x40021000;
-
-#define INTR_REQ_DMA0 0
-
-struct DMA {
-  volatile uint32_t SAR;
-  volatile uint32_t DAR;
-  volatile uint32_t DSR_BCR;
-  volatile uint32_t DCR;
-};
-static struct DMA *const DMA0 = (struct DMA *const)0x40008100;
-static struct DMA *const DMA1 = (struct DMA *const)0x40008110;
-
-
-/* We don't use ADC interrupt.  Just for reference.  */
-#define INTR_REQ_ADC 15
-
-struct ADC {
-  volatile uint32_t SC1[2];/* Status and Control Registers 1 */
-  volatile uint32_t CFG1;  /* Configuration Register 1       */
-  volatile uint32_t CFG2;  /* Configuration Register 2       */
-  volatile uint32_t R[2];  /* Data Result Register           */
-
-  /* Compare Value Registers 1, 2 */
-  volatile uint32_t CV1;
-  volatile uint32_t CV2;
-
-  volatile uint32_t SC2;   /* Status and Control Register 2  */
-  volatile uint32_t SC3;   /* Status and Control Register 3  */
-
-  volatile uint32_t OFS;   /* Offset Correction Register     */
-  volatile uint32_t PG;    /* Plus-Side Gain Register        */
-  volatile uint32_t MG;    /* Minus-Side Gain Register       */
-
-  /* Plus-Side General Calibration Value Registers */
-  volatile uint32_t CLPD;
-  volatile uint32_t CLPS;
-  volatile uint32_t CLP4;
-  volatile uint32_t CLP3;
-  volatile uint32_t CLP2;
-  volatile uint32_t CLP1;
-  volatile uint32_t CLP0;
-  uint32_t rsvd0;
-  /* Minus-Side General Calibration Value Registers */
-  volatile uint32_t CLMD;
-  volatile uint32_t CLMS;
-  volatile uint32_t CLM4;
-  volatile uint32_t CLM3;
-  volatile uint32_t CLM2;
-  volatile uint32_t CLM1;
-  volatile uint32_t CLM0;
-};
-static struct ADC *const ADC0 = (struct ADC *const)0x4003B000;
-
-/* SC1 */
-#define ADC_SC1_DIFF            (1 << 5)
-#define ADC_SC1_AIEN            (1 << 6)
-#define ADC_SC1_COCO            (1 << 7)
-#define ADC_SC1_TEMPSENSOR      26
-#define ADC_SC1_BANDGAP         27
-#define ADC_SC1_ADCSTOP         31
-
-/* CFG1 */
-#define ADC_CLOCK_SOURCE_ASYNCH (3 << 0)
-#define ADC_MODE_16BIT          (3 << 2)
-#define ADC_ADLSMP_SHORT        (0 << 4)
-#define ADC_ADLSMP_LONG         (1 << 4)
-#define ADC_ADIV_1              (0 << 5)
-#define ADC_ADIV_8              (3 << 5)
-#define ADC_ADLPC_NORMAL        (0 << 7)
-#define ADC_ADLPC_LOWPOWER      (1 << 7)
-/**/
-#define ADC_CLOCK_SOURCE ADC_CLOCK_SOURCE_ASYNCH
-#define ADC_MODE         ADC_MODE_16BIT
-#define ADC_ADLSMP       ADC_ADLSMP_SHORT
-#define ADC_ADIV         ADC_ADIV_1
-#define ADC_ADLPC        ADC_ADLPC_LOWPOWER
-
-/* CFG2 */
-#define ADC_ADLSTS_DEFAULT      0 /* 24 cycles if CFG1.ADLSMP=1, 4 if not.  */
-#define ADC_ADHSC_NORMAL        (0 << 2)
-#define ADC_ADHSC_HIGHSPEED     (1 << 2)
-#define ADC_ADACK_DISABLE       (0 << 3)
-#define ADC_ADACK_ENABLE        (1 << 3)
-#define ADC_MUXSEL_A            (0 << 4)
-#define ADC_MUXSEL_B            (1 << 4)
-/**/
-#define ADC_ADLSTS       ADC_ADLSTS_DEFAULT 
-#define ADC_ADHSC        ADC_ADHSC_NORMAL
-#define ADC_ADACKEN      ADC_ADACK_ENABLE
-#define ADC_MUXSEL       ADC_MUXSEL_A
-
-/* SC2 */
-#define ADC_SC2_REFSEL_DEFAULT  1 /* Internal Voltage Reference??? */
-#define ADC_SC2_DMAEN           (1 << 2)
-#define ADC_SC2_ACREN           (1 << 3)
-#define ADC_SC2_ACFGT           (1 << 4)
-#define ADC_SC2_ACFE            (1 << 5)
-#define ADC_SC2_ADTRG		(1 << 6) /* For hardware trigger */
-
-/* SC3 */
-#define ADC_SC3_AVGS11          0x03
-#define ADC_SC3_AVGE            (1 << 2)
-#define ADC_SC3_ADCO            (1 << 3)
-#define ADC_SC3_CALF            (1 << 6)
-#define ADC_SC3_CAL             (1 << 7)
-
-#define ADC_DMA_SLOT_NUM 40
-
-/*
- * Buffer to save ADC data.
- */
-uint32_t adc_buf[64];
-
-static const uint32_t adc0_sc1_setting = ADC_SC1_TEMPSENSOR;
-
-static chopstx_intr_t adc_intr;
-
-struct adc_internal {
-  uint32_t buf[64];
-  uint8_t *p;
-  int phase : 8;
-  int count : 8;
-};
-struct adc_internal adc;
-
-/*
- * Initialize ADC module, do calibration.
- *
- * This is called by MAIN, only once, hopefully before creating any
- * other threads (to be accurate).
- *
- * We configure ADC0 to kick DMA0, configure DMA0 to kick DMA1.
- * DMA0 records output of ADC0 to the ADC.BUF.
- * DMA1 kicks ADC0 again to get another value.
- *
- * ADC0 --[finish conversion]--> DMA0 --[Link channel 1]--> DMA1
- */
-int
-adc_init (void)
-{
-  uint32_t v;
-
-  /* Enable ADC0 and DMAMUX clock.  */
-  SIM->SCGC6 |= (1 << 27) | (1 << 1);
-  /* Enable DMA clock.  */
-  SIM->SCGC7 |= (1 << 8);
-
-  /* ADC0 setting for calibration.  */
-  ADC0->CFG1 = ADC_CLOCK_SOURCE | ADC_MODE | ADC_ADLSMP | ADC_ADIV | ADC_ADLPC;
-  ADC0->CFG2 = ADC_ADLSTS | ADC_ADHSC | ADC_ADACKEN | ADC_MUXSEL;
-  ADC0->SC2 = ADC_SC2_REFSEL_DEFAULT;
-  ADC0->SC3 = ADC_SC3_CAL | ADC_SC3_CALF | ADC_SC3_AVGE | ADC_SC3_AVGS11;
-
-  /* Wait ADC completion */
-  while ((ADC0->SC1[0] & ADC_SC1_COCO) == 0)
-    if ((ADC0->SC3 & ADC_SC3_CALF) != 0)
-      /* Calibration failure */
-      return -1;
-
-  if ((ADC0->SC3 & ADC_SC3_CALF) != 0)
-    /* Calibration failure */
-    return -1;
-
-  /* Configure PG by the calibration values.  */
-  v = ADC0->CLP0 + ADC0->CLP1 + ADC0->CLP2 + ADC0->CLP3 + ADC0->CLP4 + ADC0->CLPS;
-  ADC0->PG = 0x8000 | (v >> 1);
-
-  /* Configure MG by the calibration values.  */
-  v = ADC0->CLM0 + ADC0->CLM1 + ADC0->CLM2 + ADC0->CLM3 + ADC0->CLM4 + ADC0->CLMS;
-  ADC0->MG = 0x8000 | (v >> 1);
-
-  ADC0->SC1[0] = ADC_SC1_ADCSTOP;
-
-  /* DMAMUX setting.  */
-  DMAMUX->CHCFG0 = (1 << 7) | ADC_DMA_SLOT_NUM;
-
-  /* DMA0 initial setting.  */
-  DMA0->SAR = (uint32_t)&ADC0->R[0];
-
-  /* DMA1 initial setting.  */
-  DMA1->SAR = (uint32_t)&adc0_sc1_setting;
-  DMA1->DAR = (uint32_t)&ADC0->SC1[0];
-  
-  chopstx_claim_irq (&adc_intr, INTR_REQ_DMA0);
-  return 0;
-}
-
-/*
- * Start using ADC.
- */
-void
-adc_start (void)
-{
-  ADC0->CFG1 = ADC_CLOCK_SOURCE | ADC_MODE | ADC_ADLSMP | ADC_ADIV | ADC_ADLPC;
-  ADC0->CFG2 = ADC_ADLSTS | ADC_ADHSC | ADC_ADACKEN | ADC_MUXSEL;
-  ADC0->SC2 = ADC_SC2_REFSEL_DEFAULT | ADC_SC2_DMAEN;
-  ADC0->SC3 = 0;
-}
-
-/*
- * Kick getting data for COUNT times.
- * Data will be saved in ADC_BUF starting at OFFSET.
- */
-static void
-adc_start_conversion_internal (int count)
-{
-  /* DMA0 setting.  */
-  DMA0->DAR = (uint32_t)&adc.buf[0];
-  DMA0->DSR_BCR = 4 * count;
-  DMA0->DCR = (1 << 31) | (1 << 30) | (1 << 29) | (0 << 20) | (1 << 19)
-            | (0 << 17) | (1 <<  7) | (2 <<  4) | (1 <<  2);
-
-  /* Kick DMA1.  */
-  DMA1->DSR_BCR = 4 * count;
-  DMA1->DCR = (1 << 30) | (1 << 29) | (0 << 19) | (0 << 17) | (1 << 16) | (1 << 7);
-}
-
-
-/*
- * Kick getting data for COUNT times.
- * Data will be saved in ADC_BUF starting at OFFSET.
- */
-void
-adc_start_conversion (int offset, int count)
-{
-  adc.p = (uint8_t *)&adc_buf[offset];
-  adc.phase = 0;
-  adc.count = count;
-  adc_start_conversion_internal (count);
-}
-
-
-static void
-adc_stop_conversion (void)
-{
-  ADC0->SC1[0] = ADC_SC1_ADCSTOP;
-}
-
-/*
- * Stop using ADC.
- */
-void
-adc_stop (void)
-{
-  SIM->SCGC6 &= ~(1 << 27);
-}
-
-/*
- * Return 0 on success.
- * Return 1 on error.
- */
-int
-adc_wait_completion (void)
-{
-  while (1)
-    {
-      int i;
-
-      /* Wait DMA completion */
-      chopstx_poll (NULL, 1, &adc_intr);
-
-      DMA0->DSR_BCR = (1 << 24);
-      DMA1->DSR_BCR = (1 << 24);
-
-      adc_stop_conversion ();
-
-      for (i = 0; i < adc.count; i++)
-	*adc.p++ = (uint8_t)adc.buf[i];
-
-      if (++adc.phase >= 4)
-	break;
-
-      adc_start_conversion_internal (adc.count);
-    }
-
-  return 0;
-}
diff --git a/example-fs-bb48/command.c b/example-fs-bb48/command.c
index 6556bc7..15df6dd 100644
--- a/example-fs-bb48/command.c
+++ b/example-fs-bb48/command.c
@@ -7,8 +7,13 @@
 #include "adc.h"
 static int adc_initialized = 0;
 #endif
-#include "sys.h"
 #include "board.h"
+#ifdef MCU_KINETIS_L
+#include "mcu/sys-mkl27z.h"
+#else
+#include "mcu/sys-stm32.h"
+#undef STM32F10X_MD		/* Prepare for high density device, too.  */
+#endif
 
 struct command_table
 {
diff --git a/example-fs-bb48/sample.ld b/example-fs-bb48/sample.ld
index 5a728a6..fa75271 100644
--- a/example-fs-bb48/sample.ld
+++ b/example-fs-bb48/sample.ld
@@ -29,10 +29,10 @@ SECTIONS
         KEEP(*(.sys.version))
         KEEP(*(.sys.board_info))
         KEEP(*(.sys.vectors))
-	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);
         KEEP(*(.flash_config))
 	KEEP(*(.fixed_function.reset))
diff --git a/example-fs-bb48/sys.c b/example-fs-bb48/sys.c
deleted file mode 100644
index f0a0402..0000000
--- a/example-fs-bb48/sys.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- * sys.c - First pages 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.
- *
- *
- * First two pages of Flash ROM is difficult to use because of
- * predefined purposes.  It's defined as a default vector page and
- * a flash configuration page.
- *
- * We put something useful to those two pages, together with the
- * data for predefined purposes.
- */
-
-#include <stdint.h>
-#include <stdlib.h>
-#include "board.h"
-
-#define ADDR_VECTORS (0x00000900)
-#define ADDR_SCR_VTOR 0xe000ed08
-
-static void __attribute__ ((naked,section(".fixed_function.reset")))
-reset (void)
-{
-  uint32_t r3 = ADDR_SCR_VTOR;
-
-  asm volatile ("str	%2, [%0]\n\t"	  /* Set SCR->VTOR     */
-		"ldr	%0, [%2]\n\t"     /* Stack address     */
-		"msr	MSP, %0\n\t"	  /* Exception handler stack. */
-		"ldr	%0, [%2, #4]\n\t" /* The entry address */
-		"bx	%0\n\t"           /* Jump to the entry */
-		".align	2"
-		: "=r" (r3)
-		: "0" (r3), "r" (ADDR_VECTORS)
-		: "memory");
-
-  /* Never reach here. */
-}
-
-
-static uint32_t
-stack_entry[] __attribute__ ((section(".first_page.first_words"),used)) = {
-  /* Since MSP are soon modified in RESET, we put 0 here.  */
-  0,
-  (uint32_t)reset,
-};
-
-#include "mcu/clk_gpio_init-kl.c"
-
-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 */
-}
-
-/*
- * Here comes other SYS routines and data.
- */
-
-const uint8_t sys_version[8] __attribute__((section(".sys.version"))) = {
-  3*2+2,	     /* bLength */
-  0x03,		     /* bDescriptorType = STRING_DESCRIPTOR */
-  /* sys version: "3.0" */
-  '3', 0, '.', 0, '0', 0,
-};
-
-static const uint8_t board_name_string[] = BOARD_NAME;
-
-const uint8_t __attribute__((section(".sys.board_info")))
-*const sys_board_name = board_name_string;
-
-const uint32_t __attribute__((section(".sys.board_info")))
-sys_board_id = BOARD_ID;
-
-typedef void (*handler)(void);
-
-handler sys_vector[] __attribute__ ((section(".sys.vectors"))) = {
-  clock_init,
-  gpio_init,
-  (handler)set_led,
-  NULL,
-};
-
-static uint32_t
-flash_config[] __attribute__ ((section(".flash_config"),used)) = {
-  0xffffffff, 0xffffffff, /* Comparison Key */
-  0xffffffff, /* Protection bytes */
-  0xffff3ffe, /* FSEC=0xfe, FOPT=0x3f */
-  /* FOPT=0x3f:
-   * BOOTSRC_SEL=00: Boot from flash
-   */
-  /* FSEC=0xfe:
-   * unsecure
-   */
-};
-
-
-/*
- * Flash memory routine
- */
-struct FTFA {
-  volatile uint8_t FSTAT;
-  volatile uint8_t FCNFG;
-  volatile uint8_t FSEC;
-  volatile uint8_t FOPT;
-  /* Note: addressing (3,2,1,0, 7,6,5,4, B,A,9,8) */
-  /* Use Bx macro. */
-  volatile uint8_t FCCO[12];
-  /* Note: addressing (3,2,1,0).  Use Bx macro.  */
-  volatile uint8_t FPROT[4];
-};
-static struct FTFA *const FTFA = (struct FTFA *const)0x40020000;
-
-#define FSTAT_CCIF 0x80
-#define B3 0
-#define B2 1
-#define B1 2
-#define B0 3
-#define B7 4
-#define B6 5
-#define B5 6
-#define B4 7
-#define BB 8
-#define BA 9
-#define B9 10
-#define B8 11
-
-uint32_t __attribute__ ((naked,section(".fixed_function.flash_do_internal")))
-flash_do_internal (void)
-{
-#ifdef ORIGINAL_IN_C
-  uint8_t r;
-
-  asm volatile ("cpsid	i" : : : "memory");
-  FTFA->FSTAT |= FSTAT_CCIF;
-  while (((r = FTFA->FSTAT) & FSTAT_CCIF) == 0)
-    ;
-  r &= ~FSTAT_CCIF;
-  asm volatile ("cpsie	i" : : : "memory");
-
-  return (uint32_t)r;
-#else
-  register unsigned int r0 asm ("r0");
-  register unsigned int r1 asm ("r1") = (unsigned int)FTFA;
-  register unsigned int r2 asm ("r2") = FSTAT_CCIF;
-
-  asm volatile ("cpsid	i\n\t"
-		"ldrb	%0, [%1]\n\t"
-		"orr	%0, %2\n\t"
-		"strb	%0, [%1]\n"
-	"0:\t"
-		"ldrb	%0, [%1]\n\t"
-		"uxtb	%0, %0\n\t"
-		"tst	%0, %2\n\t"
-		"beq	0b\n\t"
-		"cpsie	i\n\t"
-		"bic	%0, %2\n\t"
-		"bx	lr"
-		: "=r" (r0)
-		: "r" (r1), "r" (r2)
-		: "memory");
-  return r0;
-#endif
-}
-
-/*
- * Let execute flash command.
- * Since the code should be on RAM, we copy the code onto stack
- * and let it go.
- */
-uint32_t __attribute__ ((naked,section(".fixed_function.flash_do")))
-flash_do (void)
-{
-  register unsigned int r0 asm ("r0");
-  register unsigned int r1 asm ("r1");
-  register unsigned int r2 asm ("r2");
-  register unsigned int r3 asm ("r3") = (unsigned int)flash_do_internal&~3;
-  /* Address of Thumb code &1 == 1, so, we clear the last bits.    ------^ */
-
-  asm volatile ("sub	sp, #32\n\t"
-		"mov	%1, sp\n\t"
-		"mov	%2, #0\n"
-	"0:\t"
-		"cmp	%2, #32\n\t"
-		"beq	1f\n\t"
-		"ldr	%0, [%3, %2]\n\t"
-		"str	%0, [%1, %2]\n\t"
-		"add	%2, #4\n\t"
-		"b	0b\n"
-	"1:\t"
-		"add	%1, #1\n\t" /* Thumb code requires LSB=1.  */
-		"mov	%3, lr\n\t"
-		"blx	%1\n\t"
-		"add	sp, #32\n\t"
-		"bx	%3"
-		: "=r" (r0), "=r" (r1), "=r" (r2), "=r" (r3)
-		: "3" (r3));
-}
-
-#define FLASH_COMMAND_PROGRAM_LONGWORD   0x06
-#define FLASH_COMMAND_ERASE_FLASH_SECTOR 0x09
-
-int __attribute__ ((naked,section(".fixed_function.flash_erase_page")))
-flash_erase_page (uint32_t addr)
-{
-#ifdef ORIGINAL_IN_C
-  FTFA->FCCO[B0] = FLASH_COMMAND_ERASE_FLASH_SECTOR;
-  FTFA->FCCO[B3] = (addr >>  0) & 0xff;
-  FTFA->FCCO[B2] = (addr >>  8) & 0xff;
-  FTFA->FCCO[B1] = (addr >> 16) & 0xff;
-  flash_do ();
-#else
-  register unsigned int r0 asm ("r0") = addr;
-  register unsigned int r1 asm ("r1");
-  register unsigned int r2 asm ("r2") = FLASH_COMMAND_ERASE_FLASH_SECTOR;
-  register unsigned int r3 asm ("r3") = (unsigned int)FTFA;
-
-  asm volatile ("strb	%2, [%3, #7]\n\t"
-		"strb	%0, [%3, #4]\n\t"
-		"lsr	%0, #8\n\t"
-		"strb	%0, [%3, #5]\n\t"
-		"lsr	%0, #8\n\t"
-		"strb	%0, [%3, #6]\n\t"
-		"b	flash_do"
-		: "=r" (r0), "=r" (r1), "=r" (r2), "=r" (r3)
-		: "0" (r0), "2" (r2), "3" (r3));
-#endif
-}
-
-int __attribute__ ((naked,section(".fixed_function.flash_program_word")))
-flash_program_word (uint32_t addr, uint32_t word)
-{
-#ifdef ORIGINAL_IN_C
-  FTFA->FCCO[B0] = FLASH_COMMAND_PROGRAM_LONGWORD;
-  FTFA->FCCO[B3] = (addr >>  0) & 0xff;
-  FTFA->FCCO[B2] = (addr >>  8) & 0xff;
-  FTFA->FCCO[B1] = (addr >> 16) & 0xff;
-  FTFA->FCCO[B4] = (word >>  0) & 0xff;
-  FTFA->FCCO[B5] = (word >>  8) & 0xff;
-  FTFA->FCCO[B6] = (word >> 16) & 0xff;
-  FTFA->FCCO[B7] = (word >> 24) & 0xff;
-  flash_do ();
-#else
-  register unsigned int r0 asm ("r0") = addr;
-  register unsigned int r1 asm ("r1") = word;
-  register unsigned int r2 asm ("r2") = FLASH_COMMAND_PROGRAM_LONGWORD;
-  register unsigned int r3 asm ("r3") = (unsigned int)FTFA;
-
-  asm volatile ("strb	%2, [%3, #7]\n\t"
-		"strb	%0, [%3, #4]\n\t"
-		"lsr	%0, #8\n\t"
-		"strb	%0, [%3, #5]\n\t"
-		"lsr	%0, #8\n\t"
-		"strb	%0, [%3, #6]\n\t"
-		"strb	%1, [%3, #11]\n\t"
-		"lsr	%1, #8\n\t"
-		"strb	%1, [%3, #10]\n\t"
-		"lsr	%1, #8\n\t"
-		"strb	%1, [%3, #9]\n\t"
-		"lsr	%1, #8\n\t"
-		"strb	%1, [%3, #8]\n\t"
-		"b	flash_do"
-		: "=r" (r0), "=r" (r1), "=r" (r2), "=r" (r3)
-		: "0" (r0), "1" (r1), "2" (r2), "3" (r3));
-#endif
-}
-
-
-/*
- * CRC32 calculation routines.
- */
-void __attribute__ ((naked,section(".fixed_function.crc32_init")))
-crc32_init  (unsigned int *p)
-{
-#ifdef ORIGINAL_IN_C
-  *p = 0xffffffff;
-#else
-  register unsigned int r3 asm ("r3");
-
-  asm volatile ("mov	%0, #1\n\t"
-		"neg	%0, %0\n\t"
-		"str	%0, [%1]\n\t"
-		"bx	lr"
-		: "=r" (r3)
-		: "r" (p)
-		: "memory");
-#endif
-}
-
-#ifdef ORIGINAL_IN_C
-const unsigned int *const crc32_table= (const unsigned int *const)0x00000500;
-#endif
-
-void __attribute__ ((naked,section(".fixed_function.crc32_u8")))
-crc32_u8 (unsigned int *p, unsigned char v)
-{
-#ifdef ORIGINAL_IN_C
-  *p = crc32_table[(*p & 0xff) ^ v] ^ (*p >> 8);
-#else
-  register unsigned int r2 asm ("r2");
-  register unsigned int r3 asm ("r3");
-
-  asm volatile ("ldrb	%2, [%4]\n\t"
-		"eor	%0, %2\n\t"
-		"mov	%2, #0xa0\n\t" /* (0x0500 >> 3) */
-		"lsl	%0, %0, #2\n\t"
-		"lsl	%2, %2, #3\n\t"
-		"add	%0, %0, %2\n\t"
-		"ldr	%2, [%4]\n\t"
-		"ldr	%1, [%0]\n\t"
-		"lsr	%2, %2, #8\n\t"
-		"eor	%2, %1\n\t"
-		"str	%2, [%4]\n\t"
-		"bx	lr"
-		: "=r" (v), "=r" (r2), "=r" (r3)
-		: "0" (v), "r" (p)
-		: "memory");
-#endif
-}
-
-void __attribute__ ((naked,section(".fixed_function.crc32_u32")))
-crc32_u32 (unsigned int *p, unsigned int u)
-{
-#ifdef ORIGINAL_IN_C
-  crc32_u8 (p, u & 0xff);
-  crc32_u8 (p, (u >> 8)& 0xff);
-  crc32_u8 (p, (u >> 16)& 0xff);
-  crc32_u8 (p, (u >> 24)& 0xff);
-#else
-  register unsigned int r3 asm ("r3");
-  register unsigned int r4 asm ("r4");
-  register unsigned int r5 asm ("r5");
-
-  asm volatile ("push	{%1, %2, %3, lr}\n\t"
-		"mov	%2, %0\n\t"
-		"mov	%3, %5\n\t"
-		"uxtb	%0, %0\n\t"
-		"bl	crc32_u8\n\t"
-		"lsr	%0, %2, #8\n\t"
-		"mov	%5, %3\n\t"
-		"uxtb	%0, %0\n\t"
-		"bl	crc32_u8\n\t"
-		"lsr	%0, %2, #16\n\t"
-		"mov	%5, %3\n\t"
-		"uxtb	%0, %0\n\t"
-		"bl	crc32_u8\n\t"
-		"mov	%5, %3\n\t"
-		"lsr	%0, %2, #24\n\t"
-		"bl	crc32_u8\n\t"
-		"pop	{%1, %2, %3, pc}"
-		: "=r" (u), "=r" (r3), "=r" (r4), "=r" (r5)
-		: "0" (u), "r" (p)
-		: "memory");
-#endif
-}
-
-/*
- * Table of CRC32, generated by gen_crc_table.py
- */
-const unsigned int
-crc32_table[256] __attribute__ ((section(".crc32_table"))) = {
-  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 
-  0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 
-  0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 
-  0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 
-  0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 
-  0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 
-  0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 
-  0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 
-  0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 
-  0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 
-  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 
-  0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 
-  0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 
-  0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 
-  0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 
-  0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 
-  0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 
-  0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 
-  0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 
-  0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 
-  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 
-  0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 
-  0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 
-  0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 
-  0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 
-  0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 
-  0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 
-  0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 
-  0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 
-  0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 
-  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 
-  0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 
-  0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 
-  0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 
-  0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 
-  0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 
-  0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 
-  0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 
-  0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 
-  0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 
-  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 
-  0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 
-  0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
-};
diff --git a/example-fs-bb48/sys.h b/example-fs-bb48/sys.h
deleted file mode 100644
index eed5d92..0000000
--- a/example-fs-bb48/sys.h
+++ /dev/null
@@ -1,41 +0,0 @@
-extern const uint8_t sys_version[8];
-extern const uint32_t sys_board_id;
-extern const char *const sys_board_name;
-
-typedef void (*handler)(void);
-extern handler sys_vector[16];
-
-/*
- * 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)
-{
-  (*sys_vector[0]) ();
-}
-
-static INLINE void
-gpio_init (void)
-{
-  (*sys_vector[1]) ();
-}
-
-static inline void
-set_led (int on)
-{
-  void (*func) (int) = (void (*)(int))sys_vector[2];
-
-  return (*func) (on);
-}
-
-void crc32_init (unsigned int *);
-void crc32_u8 (unsigned int *, unsigned char);
-void crc32_u32 (unsigned int *, unsigned int);
-
-int flash_erase_page (uint32_t addr);
-int flash_program_word (uint32_t addr, uint32_t word);
diff --git a/example-fs-bb48/usb_kl27z.c b/example-fs-bb48/usb_kl27z.c
deleted file mode 100644
index a7b8723..0000000
--- a/example-fs-bb48/usb_kl27z.c
+++ /dev/null
@@ -1,1034 +0,0 @@
-/*
- * usb_kl27z.c - USB driver for KL27Z
- *
- * 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.
- *
- */
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "usb_lld.h"
-
-struct endpoint_ctl {
-  uint32_t rx_odd: 1;
-  uint32_t tx_odd: 1;
-};
-static struct endpoint_ctl ep[16];
-
-struct USB_CONF {
-  const uint8_t PERID;       /* Peripheral ID register              */
-  uint8_t rsvd0[3];          /*                                     */
-  const uint8_t IDCOMP;      /* Peripheral ID Complement register   */
-  uint8_t rsvd1[3];          /*                                     */
-  const uint8_t REV;         /* Peripheral Revision register        */
-  uint8_t rsvd2[3];          /*                                     */
-  volatile uint8_t ADDINFO;  /* Peripheral Additional Info register */
-};
-static struct USB_CONF *const USB_CONF = (struct USB_CONF *const) 0x40072000;
-
-struct USB_CTRL0 {
-  volatile uint8_t OTGCTL;   /* OTG Control register                */
-};
-static struct USB_CTRL0 *const USB_CTRL0 = (struct USB_CTRL0 *const)0x4007201c;
-
-struct USB_CTRL1 {
-  volatile uint8_t ISTAT;    /* Interrupt Status register           */
-  uint8_t rsvd5[3];          /*                                     */
-  volatile uint8_t INTEN;    /* Interrupt Enable register           */
-  uint8_t rsvd6[3];          /*                                     */
-  volatile uint8_t ERRSTAT;  /* Error Interrupt Status register     */
-  uint8_t rsvd7[3];          /*                                     */
-  volatile uint8_t ERREN;    /* Error Interrupt Enable register     */
-  uint8_t rsvd8[3];          /*                                     */
-  volatile uint8_t STAT;     /* Status register                     */
-  uint8_t rsvd9[3];          /*                                     */
-  volatile uint8_t CTL;      /* Control register                    */
-  uint8_t rsvd10[3];         /*                                     */
-  volatile uint8_t ADDR;     /* Address register                    */
-  uint8_t rsvd11[3];         /*                                     */
-  volatile uint8_t BDTPAGE1; /* BDT Page register 1                 */
-  uint8_t rsvd12[3];         /*                                     */
-  volatile uint8_t FRMNUML;  /* Frame Number register Low           */
-  uint8_t rsvd13[3];         /*                                     */
-  volatile uint8_t FRMNUMH;  /* Frame Number register High          */
-  uint8_t rsvd14[11];        /*                                     */
-  volatile uint8_t BDTPAGE2; /* BDT Page Register 2                 */
-  uint8_t rsvd15[3];         /*                                     */
-  volatile uint8_t BDTPAGE3; /* BDT Page Register 3                 */
-};
-static struct USB_CTRL1 *const USB_CTRL1 = (struct USB_CTRL1 *const)0x40072080;
-
-/* Interrupt source bits */
-#define USB_IS_STALL  (1 << 7)
-#define USB_IS_RESUME (1 << 5)
-#define USB_IS_SLEEP  (1 << 4)
-#define USB_IS_TOKDNE (1 << 3)
-#define USB_IS_SOFTOK (1 << 2)
-#define USB_IS_ERROR  (1 << 1)
-#define USB_IS_USBRST (1 << 0)
-
-
-struct USB_ENDPT {
-  volatile uint8_t EP;  /* Endpoint Control register */
-  uint8_t rsvd17[3];
-};
-static struct USB_ENDPT *const USB_ENDPT = (struct USB_ENDPT *const)0x400720c0;
-
-struct USB_CTRL2 {
-  volatile uint8_t USBCTRL;  /* USB Control register                */
-  uint8_t rsvd33[3];         /*                                     */
-  volatile uint8_t OBSERVE;  /* USB OTG Observe register            */
-  uint8_t rsvd34[3];         /*                                     */
-  volatile uint8_t CONTROL;  /* USB OTG Control register            */
-  uint8_t rsvd35[3];         /*                                     */
-  volatile uint8_t USBTRC0;  /* USB Transceiver Control register 0  */
-  uint8_t rsvd36[7];         /*                                     */
-  volatile uint8_t USBFRMADJUST;           /* Frame Adjut Register  */
-};
-static struct USB_CTRL2 *const USB_CTRL2 = (struct USB_CTRL2 *const)0x40072100;
-
-/* Buffer Descriptor */
-struct BD {
-  volatile uint32_t ctrl;
-  volatile void *buf; 
-};
-/*
-  uint32_t rsvd0 : 2;
-  volatile uint32_t STALL: 1;
-  volatile uint32_t DTS: 1;
-
-  volatile uint32_t NINC: 1;
-  volatile uint32_t KEEP: 1;
-  volatile uint32_t DATA01: 1;
-  volatile uint32_t OWN: 1;
-
-  uint32_t rsvd1: 8;
-  volatile uint32_t BC: 10;
-  uint32_t rsvd2: 6;
-*/
-#define TOK_PID(ctrl)   ((ctrl >> 2) & 0x0f)
-
-extern uint8_t __usb_bdt__;
-
-static struct BD *const BD_table = (struct BD *const)&__usb_bdt__;
-
-static uint8_t setup[8];
-/* bmRequestType, bRequest */
-/* Value: 2-byte  */
-/* Index: 2-byte  */
-/* Length: 2-byte */
-
-static void
-kl27z_usb_init (void)
-{
-  int i;
-
-  memset (ep, 0, sizeof (ep));
-  memset (BD_table, 0, 16 * 2 * 2 * sizeof (struct BD));
-
-  /* D+ pull up */
-  USB_CTRL0->OTGCTL = 0x80;
-
-  USB_CTRL1->ERREN = 0xff;
-
-  USB_CTRL1->BDTPAGE1 = ((uint32_t)BD_table) >> 8;
-  USB_CTRL1->BDTPAGE2 = ((uint32_t)BD_table) >> 16;
-  USB_CTRL1->BDTPAGE3 = ((uint32_t)BD_table) >> 24;
-
-  /* Not suspended, Pull-down disabled.  */
-  USB_CTRL2->USBCTRL = 0x00;
-  /* DP Pullup in non-OTG device mode.  */
-  USB_CTRL2->CONTROL = 0x10;
-
-  /* Disable all endpoints.  */
-  for (i = 0; i < 16; i++)
-    USB_ENDPT[i].EP = 0;
-
-  /* 
-   * Enable USB FS communication module, clearing all ODD-bits
-   * for BDT.
-   */
-  USB_CTRL1->CTL = 0x03;    
-
-  /* ??? How we can ask re-enumeration?  Is only hard RESET enough? */
-}
-
-static void
-kl27z_set_daddr (uint8_t daddr)
-{
-  USB_CTRL1->ADDR = daddr;
-}
-
-static void
-kl27z_prepare_ep0_setup (void)
-{
-  /* Endpoint 0, TX=0. */
-  BD_table[ep[0].rx_odd].ctrl = 0x00080088; /* Len=8, OWN=1, DATA01=0, DTS=1 */
-  BD_table[ep[0].rx_odd].buf = setup;
-
-  BD_table[!ep[0].rx_odd].ctrl = 0x0000; /* OWN=0 */
-  BD_table[!ep[0].rx_odd].buf = NULL;
-}
-
-static void
-kl27z_prepare_ep0_in (const void *buf, uint8_t len, int data01)
-{
-  /* Endpoint 0, TX=1 *//* OWN=1, DTS=1 */
-  BD_table[2+ep[0].tx_odd].ctrl = (len << 16) | 0x0088 | (data01 << 6); 
-  BD_table[2+ep[0].tx_odd].buf = (void *)buf;
-}
-
-static void
-kl27z_prepare_ep0_out (void *buf, uint8_t len, int data01)
-{
-  /* Endpoint 0, TX=0 *//* OWN=1, DTS=1 */
-  BD_table[ep[0].rx_odd].ctrl = (len << 16) | 0x0088 | (data01 << 6);
-  BD_table[ep[0].rx_odd].buf = buf;
-}
-
-static int
-kl27z_ep_is_disabled (uint8_t n)
-{
-  return (USB_ENDPT[n].EP == 0);
-}
-
-static int
-kl27z_ep_is_stall (uint8_t n)
-{
-  return (USB_ENDPT[n].EP & 0x02) >> 1;
-}
-
-static void
-kl27z_ep_stall (uint8_t n)
-{
-  USB_ENDPT[n].EP |= 0x02;
-}
-
-static void
-kl27z_ep_clear_stall (uint8_t n)
-{
-  USB_ENDPT[n].EP &= ~0x02;
-}
-
-static void
-kl27z_ep_clear_dtog (int rx, uint8_t n)
-{
-  uint32_t config;
-
-  if (!kl27z_ep_is_stall (n))
-    /* Just in case, when the endpoint is active */
-    kl27z_ep_stall (n);
-
-  if (rx)
-    {
-      config = BD_table[4*n+ep[n].rx_odd].ctrl;
-
-      BD_table[4*n+!ep[n].rx_odd].ctrl &= ~(1 << 6);
-      if ((config & 0x0080)) /* OWN already? */
-	{
-	  /*
-	   * How to update BDT entry which is owned by USBFS seems to
-	   * be not clearly documented.  It would be just OK to update
-	   * it as long as the endpoint is stalled (BDT entry is
-	   * actually not in use).  We write 0 at first and then write
-	   * value with OWN, to avoid possible failure.
-	   */
-	  BD_table[4*n+ep[n].rx_odd].ctrl = 0;
-	  BD_table[4*n+ep[n].rx_odd].ctrl = (config & ~(1 << 6));
-	}
-    }
-  else
-    {
-      config = BD_table[4*n+2+ep[n].tx_odd].ctrl;
-
-      BD_table[4*n+2+!ep[n].tx_odd].ctrl &= ~(1 << 6);
-      if ((config & 0x0080)) /* OWN already? */
-	{
-	  BD_table[4*n+2+ep[n].tx_odd].ctrl = 0;
-	  BD_table[4*n+2+ep[n].tx_odd].ctrl = (config & ~(1 << 6));
-	}
-    }
-
-  kl27z_ep_clear_stall (n);
-}
-
-#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 */
-};
-
-
-enum FEATURE_SELECTOR {
-  ENDPOINT_STALL,
-  DEVICE_REMOTE_WAKEUP
-};
-
-
-struct data_ctl {
-  uint8_t *addr;
-  uint16_t len;
-  uint8_t require_zlp;
-};
-
-/* The state machine states of a control pipe */
-enum {
-  WAIT_SETUP,
-  IN_DATA,
-  OUT_DATA,
-  LAST_IN_DATA,
-  WAIT_STATUS_IN,
-  WAIT_STATUS_OUT,
-  STALLED,
-  PAUSE
-};
-
-struct device_ctl {
-  /* control pipe state */
-  uint8_t state;		
-
-  uint32_t tkdone;
-  uint32_t reset;
-  uint32_t error;
-  uint32_t stall;
-
-  uint32_t send;
-  uint32_t recv;
-
-  /* Device specific settings */
-  uint8_t configuration;
-  uint8_t feature;
-};
-
-static struct device_ctl device_ctl;
-static struct data_ctl data_ctl;
-
-static struct device_ctl *const dev_p = &device_ctl;
-static struct data_ctl *const data_p = &data_ctl;
-
-static void handle_transaction (uint8_t stat);
-
-void
-usb_lld_stall (int n)
-{
-  kl27z_ep_stall (n);
-}
-
-
-void
-usb_lld_init (uint8_t feature)
-{
-  dev_p->state = WAIT_SETUP;
-  dev_p->tkdone = 0;
-  dev_p->reset = 0;
-  dev_p->error = 0;
-  dev_p->stall = 0;
-
-  usb_lld_set_configuration (0);
-  dev_p->feature = feature;
-
-  kl27z_set_daddr (0);
-  kl27z_usb_init ();
-
-  /* Enable the endpoint 0.  */
-  USB_ENDPT[0].EP = 0x0d;
-
-  /* Clear Interrupt Status Register, and enable interrupt for USB */
-  USB_CTRL1->ISTAT = 0xff;		     /* All clear */
-
-  USB_CTRL1->INTEN = USB_IS_STALL | USB_IS_TOKDNE
-                   | USB_IS_ERROR | USB_IS_USBRST;
-}
-
-void
-usb_interrupt_handler (void)
-{
-  uint8_t istat_value = USB_CTRL1->ISTAT;
-  uint8_t stat = USB_CTRL1->STAT;
-
-  if ((istat_value & USB_IS_USBRST))
-    {
-      USB_CTRL1->ISTAT = USB_IS_USBRST;
-      usb_cb_device_reset ();
-      dev_p->reset++;
-    }
-  else if ((istat_value & USB_IS_ERROR))
-    { /* Clear Errors.  */
-      USB_CTRL1->ERRSTAT = USB_CTRL1->ERRSTAT;
-      USB_CTRL1->ISTAT = USB_IS_ERROR;
-      /*reset???*/
-      dev_p->error++;
-    }
-  else if ((istat_value & USB_IS_TOKDNE))
-    {
-      handle_transaction (stat);
-      dev_p->tkdone++;
-    }
-  else if ((istat_value & USB_IS_STALL))
-    {
-      /* ??? stat includes ep_num in this case ???: No, it doesn't  */
-
-      if (kl27z_ep_is_stall (0))
-	{ /* It's endpoint 0, recover from erorr.  */
-	  dev_p->state = WAIT_SETUP;
-	  kl27z_ep_clear_stall (0);
-	  kl27z_prepare_ep0_setup ();
-	}
-
-      USB_CTRL1->ISTAT = USB_IS_STALL;
-      dev_p->stall++;
-    }
-}
-
-#define DATA0 0
-#define DATA1 1
-
-static void
-handle_datastage_out (uint8_t stat)
-{
-  int odd = (stat >> 2)&1;
-  int data01 = !((BD_table[odd].ctrl >> 6)&1);
-  uint32_t len = (BD_table[odd].ctrl >> 16)&0x3ff;
-
-  data_p->len -= len;
-  data_p->addr += len;
-
-  len = data_p->len;
-  if (len > USB_MAX_PACKET_SIZE)
-    len = USB_MAX_PACKET_SIZE;
-
-  if (data_p->len == 0)
-    {
-      /* No more data to receive, proceed to send acknowledge for IN.  */
-      dev_p->state = WAIT_STATUS_IN;
-      kl27z_prepare_ep0_in (setup, 0, DATA1);
-    }
-  else
-    {
-      dev_p->state = OUT_DATA;
-      kl27z_prepare_ep0_out (data_p->addr, len, data01);
-    }
-}
-
-static void
-handle_datastage_in (uint8_t stat)
-{
-  int odd = (stat >> 2)&1;
-  int data01 = !((BD_table[2+odd].ctrl >> 6)&1);
-  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 */
-	  kl27z_prepare_ep0_in (setup, 0, data01);
-	}
-      else
-	{
-	  /* No more data to send, proceed to receive OUT acknowledge.  */
-	  dev_p->state = WAIT_STATUS_OUT;
-	  kl27z_prepare_ep0_out (setup, 8, DATA1);
-	}
-
-      return;
-    }
-
-  dev_p->state = (data_p->len <= len) ? LAST_IN_DATA : IN_DATA;
-
-  if (len > data_p->len)
-    len = data_p->len;
-
-  kl27z_prepare_ep0_in (data_p->addr, len, data01);
-  data_p->len -= len;
-  data_p->addr += len;
-}
-
-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->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->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 n = (arg->index & 0x0f);
-
-      if ((arg->index & 0x70) || n == ENDP0)
-	return USB_UNSUPPORT;
-
-      if (kl27z_ep_is_disabled (n))
-	return USB_UNSUPPORT;
-
-      status_info = kl27z_ep_is_stall (n);
-      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->feature &= ~(1 << 5);
-	  return USB_SUCCESS;
-	}
-    }
-  else if (rcp == ENDPOINT_RECIPIENT)
-    {
-      uint8_t n = (arg->index & 0x0f);
-
-      if (dev_p->configuration == 0)
-	return USB_UNSUPPORT;
-
-      if (arg->len != 0 || (arg->index >> 8) != 0
-	  || arg->value != ENDPOINT_STALL || n == ENDP0)
-	return USB_UNSUPPORT;
-
-      if (kl27z_ep_is_disabled (n))
-	return USB_UNSUPPORT;
-
-      kl27z_ep_clear_dtog ((arg->index & 0x80) == 0, n);
-
-      // 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->feature |= 1 << 5;
-	  // event??
-	  return USB_SUCCESS;
-	}
-    }
-  else if (rcp == ENDPOINT_RECIPIENT)
-    {
-      uint8_t n = (arg->index & 0x0f);
-
-      if (dev_p->configuration == 0)
-	return USB_UNSUPPORT;
-
-      if (arg->len != 0 || (arg->index >> 8) != 0
-	  || arg->value != 0 || n == ENDP0)
-	return USB_UNSUPPORT;
-
-      if (kl27z_ep_is_disabled (n))
-	return USB_UNSUPPORT;
-
-      kl27z_ep_stall (n);
-
-      // 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->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;
-
-  (void)arg;
-  if (USB_SETUP_SET (req))
-    return USB_UNSUPPORT;
-
-  if (rcp == DEVICE_RECIPIENT)
-    return usb_lld_reply_request (&dev_p->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->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->configuration == 0)
-    return USB_UNSUPPORT;
-
-  return usb_cb_interface (USB_SET_INTERFACE, arg);
-}
-
-
-static void
-handle_setup0 (void)
-{
-  struct req_args *arg = (struct req_args *)&setup[2];
-  int r = USB_UNSUPPORT;
-  HANDLER handler;
-
-  data_p->addr = NULL;
-  data_p->len = 0;
-  data_p->require_zlp = 0;
-
-  if ((setup[0] & REQUEST_TYPE) == STANDARD_REQUEST)
-    {
-      if (setup[1] < TOTAL_REQUEST)
-	{
-	  switch (setup[1])
-	    {
-	    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) (setup[0], arg);
-	}
-    }
-  else
-    r = usb_cb_setup (setup[0], setup[1], arg);
-
-  if (r != USB_SUCCESS)
-    dev_p->state = STALLED;
-  else if (USB_SETUP_SET (setup[0]))
-    {
-      if (arg->len == 0)
-	{
-	  /* Zero length packet for ACK.  */
-	  kl27z_prepare_ep0_in (setup, 0, DATA1);
-	  dev_p->state = WAIT_STATUS_IN;
-	}
-    }
-}
-
-static void
-handle_in0 (uint8_t stat)
-{
-  if (dev_p->state == IN_DATA || dev_p->state == LAST_IN_DATA)
-    handle_datastage_in (stat);
-  else if (dev_p->state == WAIT_STATUS_IN)
-    { /* Control WRITE transfer done successfully.  */
-      uint16_t value = (setup[3]<<8) | setup[2];
-
-      if ((setup[1] == SET_ADDRESS) &&
-	  ((setup[0] & (REQUEST_TYPE | RECIPIENT))
-	   == (STANDARD_REQUEST | DEVICE_RECIPIENT)))
-	{
-	  kl27z_set_daddr (value);
-	  usb_cb_handle_event (USB_EVENT_ADDRESS, value);
-	  ep[0].rx_odd = 0;
-	}
-      else
-	usb_cb_ctrl_write_finish  (setup[0], setup[1],
-				   (struct req_args *)&setup[2]);
-
-      dev_p->state = WAIT_SETUP;
-      kl27z_prepare_ep0_setup ();
-    }
-  else
-    dev_p->state = STALLED;
-}
-
-static void
-handle_out0 (uint8_t stat)
-{
-  if (dev_p->state == IN_DATA || dev_p->state == LAST_IN_DATA)
-    /* Host aborts the control READ transfer before finish. */
-    dev_p->state = STALLED;
-  else if (dev_p->state == OUT_DATA)
-    /* It's normal control WRITE transfer.  */
-    handle_datastage_out (stat);
-  else if (dev_p->state == WAIT_STATUS_OUT)
-    { /* Control READ transfer done successfully.  */
-      dev_p->state = WAIT_SETUP;
-      kl27z_prepare_ep0_setup ();
-    }
-  else
-    dev_p->state = STALLED;
-}
-
-static void
-handle_transaction (uint8_t stat)
-{
-  int odd = (stat >> 2)&1;
-  uint8_t ep_num = (stat >> 4);
-
-  if (ep_num == 0)
-    {
-      if ((stat & 0x08) == 0)
-	{
-	  ep[0].rx_odd ^= 1;
-	  if (TOK_PID (BD_table[odd].ctrl) == 0x0d)
-	    {
-	      handle_setup0 ();
-	      USB_CTRL1->ISTAT = USB_IS_TOKDNE;
-	      USB_CTRL1->CTL = 0x01; /* Clear TXSUSPENDTOKENBUSY.  */
-	    }
-	  else
-	    {
-	      USB_CTRL1->ISTAT = USB_IS_TOKDNE;
-	      handle_out0 (stat);
-	    }
-	}
-      else
-	{
-	  ep[0].tx_odd ^= 1;
-	  USB_CTRL1->ISTAT = USB_IS_TOKDNE;
-	  handle_in0 (stat);
-	}
-
-      if (dev_p->state == STALLED)
-	kl27z_ep_stall (0);
-    }
-  else
-    {
-      if ((stat & 0x08) == 0)
-	{
-	  dev_p->recv++;
-	  ep[ep_num].rx_odd ^= 1;
-	  usb_cb_rx_ready (ep_num);
-	}
-      else
-	{
-	  /* XXX: Can be NAK.  Check BDT if it's NAK or not.  */
-
-	  dev_p->send++;
-	  ep[ep_num].tx_odd ^= 1;
-	  usb_cb_tx_done (ep_num);
-	}
-
-      USB_CTRL1->ISTAT = USB_IS_TOKDNE;
-    }
-}
-
-void
-usb_lld_reset (uint8_t feature)
-{
-  dev_p->feature = feature;
-  usb_lld_set_configuration (0);
-
-  /* Reset USB */
-  USB_CTRL2->USBTRC0 = 0xc0;
-
-  USB_CTRL1->CTL = 0x00;    /* Disable USB FS communication module */
-
-  dev_p->state = WAIT_SETUP;
-  dev_p->tkdone = 0;
-  dev_p->error = 0;
-  dev_p->stall = 0;
-
-  kl27z_set_daddr (0);
-  kl27z_usb_init ();
-
-  /* Clear Interrupt Status Register, and enable interrupt for USB */
-  USB_CTRL1->ISTAT = 0xff;		     /* All clear */
-
-  USB_CTRL1->INTEN = USB_IS_STALL | USB_IS_TOKDNE
-                   | USB_IS_ERROR | USB_IS_USBRST;
-}
-
-void
-usb_lld_setup_endpoint (int n, int rx_en, int tx_en)
-{
-  if (n == 0)
-    {
-      /* Enable the endpoint 0.  */
-      USB_ENDPT[0].EP = 0x0d;
-      kl27z_prepare_ep0_setup ();
-    }
-  else
-    {
-      /* Enable the endpoint.  */
-      USB_ENDPT[n].EP = (rx_en << 3)|(tx_en << 2)|0x11;
-
-      /* Configure BDT entry so that it starts with DATA0.  */
-
-      /* RX */
-      BD_table[4*n+ep[n].rx_odd].ctrl = 0x0000;
-      BD_table[4*n+ep[n].rx_odd].buf = NULL;
-      BD_table[4*n+!ep[n].rx_odd].ctrl = 0x0040;
-      BD_table[4*n+!ep[n].rx_odd].buf = NULL;
-
-      /* TX */
-      BD_table[4*n+2+ep[n].tx_odd].ctrl = 0x0000;
-      BD_table[4*n+2+ep[n].tx_odd].buf = NULL;
-      BD_table[4*n+2+!ep[n].tx_odd].ctrl = 0x0040;
-      BD_table[4*n+2+!ep[n].tx_odd].buf = NULL;
-    }
-}
-
-
-void
-usb_lld_set_configuration (uint8_t config)
-{
-  dev_p->configuration = config;
-}
-
-uint8_t
-usb_lld_current_configuration (void)
-{
-  return dev_p->configuration;
-}
-
-void
-usb_lld_set_data_to_recv (void *p, size_t len)
-{
-  data_p->addr = (uint8_t *)p;
-  data_p->len = len;
-  if (len > USB_MAX_PACKET_SIZE)
-    len = USB_MAX_PACKET_SIZE;
-
-  kl27z_prepare_ep0_out (p, len, DATA1);
-  dev_p->state = OUT_DATA;
-}
-
-/*
- * 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 *a)
-{
-  uint32_t len_asked = a->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;
-
-  data_p->require_zlp = (data_p->len != 0
-			 && (data_p->len % USB_MAX_PACKET_SIZE) == 0);
-
-  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)
-    kl27z_prepare_ep0_in (data_p->addr, len, DATA1);
-
-  data_p->len -= len;
-  data_p->addr += len;
-
-  return USB_SUCCESS;
-}
-
-void
-usb_lld_rx_enable (int n, void *buf, size_t len)
-{
-  int data01 = !((BD_table[4*n+!ep[n].rx_odd].ctrl >> 6)&1);
-
-  BD_table[4*n+ep[n].rx_odd].ctrl = (len << 16) | 0x0088 | (data01 << 6);
-  BD_table[4*n+ep[n].rx_odd].buf = buf;
-}
-
-int
-usb_lld_rx_data_len (int n)
-{
-  return (BD_table[4*n+!ep[n].rx_odd].ctrl >> 16)&0x3ff;
-}
-
-
-void
-usb_lld_tx_enable (uint8_t n, const void *buf, size_t len)
-{
-  int data01 = !((BD_table[4*n+2+!ep[n].tx_odd].ctrl >> 6)&1);
-
-  BD_table[4*n+2+ep[n].tx_odd].ctrl = (len << 16) | 0x0088 | (data01 << 6); 
-  BD_table[4*n+2+ep[n].tx_odd].buf = (void *)buf;
-}
-
-int
-usb_lld_tx_result (int ep_num)
-{
-  (void)ep_num;
-  return 0; /* XXX: return -1 when NAK */
-}
diff --git a/example-fs-bb48/usb_lld.h b/example-fs-bb48/usb_lld.h
index da694a6..b2ce4fb 100644
--- a/example-fs-bb48/usb_lld.h
+++ b/example-fs-bb48/usb_lld.h
@@ -10,12 +10,6 @@
 #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    */
author	NIIBE Yutaka <gniibe@fsij.org>	2016-05-30 14:39:02 +0900
committer	NIIBE Yutaka <gniibe@fsij.org>	2016-05-30 14:39:02 +0900
commit	b90e58f763bd277b7a5285601a34818f44f2b01c (patch)
tree	4535e6abc8b77d58215796c240489e7dbf499b44 /example-fs-bb48
parent	8209f3875510d1990142a367c8bab6164c2f82cc (diff)