Version 1.14.

AUTHORS

@@ -27,19 +27,30 @@ Mateusz Zalega:
 
 NIIBE Yutaka:
     Wrote the library:
-	chopstx.c, entry.c, eventflag.c,
-	chopstx.h, eventflag.h
+	chopstx.c, chopstx.h,
+	chopstx-cortex-m.c, chopstx-cortex-m.h,
+	chopstx-gnu-linux.c, chopstx-gnu-linux.h,
+	entry.c,
+	eventflag.c, eventflag.h
     Wrote the drivers mcu/*:
+	chx-gnu-linux.c, chx-mkl27z.c, chx-stm32f0.c, chx-stm32f103.c,
     	clk_gpio_init-mkl27z.c, clk_gpio_init-stm32.c,
-	sys-stm32f103.c, sys-stm32f030.c, sys-mkl27z.c,
-	adc-stm32f103.c, adc-mkl27z.c
+	cortex-m.h, mkl27z.h, stm32.h, stm32f103.h,
+	sys-gnu-linux.c,sys-gnu-linux.h,
+	sys-mkl27z.c, sys-mkl27z.h,
+	sys-stm32f0.c, sys-stm32f0.h
+	sys-stm32f103.c, sys-stm32f103.h,
+	usb-stm32f103.c, usb-mkl27z.c
+    Wrote the drivers:
+	controb/adc-mkl27z.c
     Drew the logo:
 	chopstx.svg, chopstx.png
     Wrote examples:
 	example-led, example-cdc, example-fsm-55, example-fs-bb48,
-	example-usb-serial
+	example-usb-serial, example-cdc-gnu-linux
     Wrote board/*:
-	board-fst-01.h, board-fst-01-00.h,
+        board-fst-01sz.h,
+	board-fst-01g.h, board-fst-01.h, board-fst-01-00.h,
 	board-olimex-stm32-h103.h, board-stm8s-discovery.h
 	board-cq-starm.h, board-stbee-mini.h, board-stbee.h,
 
@@ -47,9 +58,14 @@ NIIBE Yutaka:
 
 	board-fs-bb48.h
 
+    For Free Software Initiative of Japan, wrote:
+	contrib/adc-stm32f103.c,
+	contrib/adc-gnu-linux.c
+
     Under contract of g10 Code GmbH, wrote:
 	mcu/usb-usbip.c
 	contrib/usart-stm32f103.c
+	contrib/ackbtn-stm32f103.c
 
 Paul Fertser:
     Added Blue Pill support.

ChangeLog

@@ -1,3 +1,140 @@
+2019-03-02  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* VERSION: 1.14.
+	* doc/chopstx.texi (VERSION): 1.14.
+
+2019-03-01  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/usart-stm32f103.c (usart_config): Fix SCEN setting
+	procedure.
+
+2019-03-01  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/usart-stm32f103.c (usart_config): Support parity error
+	interrupt setting.
+	(usart_init): Don't call usart_config here.
+	* example-usb-serial/sample.c: It's application calling
+	usart_config.
+
+2019-02-28  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/usart.h (BSCARD): New.
+	* contrib/usart-stm32f103.c (BSCARD): Baudrate for smartcard.
+	(usart_config_clken): New.
+	(usart_config): Fix for MODE_SMARTCARD.
+
+	* board/board-st-nucleo-f103.h: Define pins for smartcard
+	interface.
+
+2019-02-21  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/usart.h (MODE_SMARTCARD, MODE_IRDA, MODE_IRDA_LP)
+	(MASK_MODE): New.
+
+	* contrib/usart-stm32f103.c (usart_config): Add support for
+	those modes.
+
+2018-12-19  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* VERSION: 1.13.
+	* doc/chopstx.texi (VERSION): 1.13.
+
+2018-12-08  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* chopstx.c (chx_timer_dequeue): Fix calculation of return value.
+
+2018-12-07  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* chopstx.c (chx_timer_dequeue): Return ticks remained.
+	(chx_wakeup, chopstx_mutex_lock): Use return value of
+	chx_timer_dequeue.
+	(chx_snooze): Update *USEC_P, accordingly.
+
+2018-11-12  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* VERSION: 1.12.
+	* doc/chopstx.texi (VERSION): 1.12.
+
+	* contrib/ackbtn-stm32f103.c (ackbtn_init): Support FST-01 and
+	FST-01G, using PA2.
+	(ackbtn_disable): Fix to correctly clear pending interrupt.
+
+2018-11-09  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* eventflag.c (eventflag_set_mask): New.
+
+2018-10-02  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* VERSION: 1.11.
+	* doc/chopstx.texi (VERSION): 1.11.
+
+2018-10-01  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/ackbtn-stm32f103.c (PINCFG_EDGE): New.
+	(ackbtn_init): Use PINCFG_EDGE bit.
+	(ackbtn_enable): Configure the edge detector here.
+	(ackbtn_disable): Disable the edge detector.
+
+	* chopstx.c (chopstx_poll): Don't clear ->ready here.
+	(chx_cond_hook): Set ->ready = 0 when condition does
+	not meet.
+	(chopstx_claim_irq): Make sure clearing the interrupt.
+	(chx_intr_hook): Add the case when ->ready == 1.
+	(chopstx_intr_done): Set ->ready = 0.
+	(chx_join_hook): Set ->ready = 0 when it is still alive.
+
+2018-09-29  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* VERSION: 1.10.
+	* doc/chopstx.texi (VERSION): 1.10.
+
+2018-09-27  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* contrib/ackbtn-stm32f103.c: New.
+	* rules.mk [USE_ACKBTN] (CSRC): Add ack-button support.
+
+2018-09-26  NIIBE Yutaka  <gniibe@fsij.org>
+
+	Fix for chopstx_intr_done.  No spurious interrupts.
+	* contrib/adc-mkl27z.c (adc_wait_completion): Fix.
+	* contrib/adc-stm32f103.c (adc_wait_completion): Likewise.
+	* contrib/usart-stm32f103.c (usart_main): Likewise.
+	* example-cdc-gnu-linux/usb-cdc.c (tty_main): Likewise.
+	* example-cdc/usb-cdc.c (tty_main): Likewise.
+	* example-fraucheky/main.c (usb_main): Likewise.
+	* example-fs-bb48/touch.c (touch_get): Likewise.
+	* example-fs-bb48/usb-cdc.c (tty_main): Likewise.
+	* example-primer2/primer2-ts.c (adc3_conversion): Likewise.
+	* example-usb-serial/usb-cdc.c (cdc_main): Likewise.
+
+2018-09-26  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* chopstx.h (chopstx_intr_done): New function.
+	* chopstx.c (chopstx_intr_done): New function.
+	(chopstx_poll): Don't call chx_clr_intr.
+	Ensure data memory barrier for interrupt handling.
+
+	* chopstx-cortex-m.c (chx_dmb): New static function.
+	* chopstx-gnu-linux.c (chx_dmb): Ditto.
+
+2018-09-21  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* mcu/stm32.h (struct GPIO, struct FLASH): Moved from...
+	* mcu/clk_gpio_init-stm32.c: ... here.
+	(AFIO_MAPR_SWJ_CFG_JTAGDISABLE): Move to ...
+	* mcu/stm32f103.h: ... here.
+	* mcu/sys-stm32f103.c: Don't include "mcu/cortex-m.h".
+
+	* board/board-fst-01sz.h: New.
+	* mcu/sys-stm32f103.h (BOARD_ID_FST_01SZ): New.
+	* contrib/adc-stm32f103.c (get_adc_config): Add BOARD_ID_FST_01SZ.
+
+2018-08-20  NIIBE Yutaka  <gniibe@fsij.org>
+
+	* mcu/usb-stm32f103.c (usb_lld_ctrl_send): Fix for ZLP.
+	* mcu/usb-usbip.c (usb_lld_ctrl_send): Likewise.
+	* mcu/usb-mkl27z.c (usb_lld_ctrl_send): Likewise.
+
 2018-05-09  NIIBE Yutaka  <gniibe@fsij.org>
 
 	* VERSION: 1.9.

NEWS

@@ -1,6 +1,74 @@
 NEWS - Noteworthy changes
 
 
+* Major changes in Chopstx 1.14
+
+  Released 2019-03-02
+
+** Enhancement of driver: USART for STM32
+Now, it supports smartcard communication.
+
+
+* Major changes in Chopstx 1.13
+
+  Released 2018-12-19
+
+** API fix (redefinition): chopstx_poll
+In old implementations, when chopstx_poll returns by non-timeout
+event, *USEC_P is not updated.  Now, it is updated.
+
+
+* Major changes in Chopstx 1.12
+
+  Released 2018-11-12
+
+** Enhance API of eventflag
+New function eventflag_set_mask is added, so that we can only handle
+specified events.  See Gnuk 1.2.12 for an example (while USB Tx is
+busy, the USB thread only accepts EV_TX_FINISHED event, leaving
+other events).
+
+** Acknowledge button support for FST-01 and FST-01G
+While FST-01 and FST-01G don't have any button in the original design,
+it may be PA2 when user put a hall sensor or a switch.
+
+
+* Major changes in Chopstx 1.11
+
+  Released 2018-10-02
+
+** Support calling chopstx_poll with intr->ready==1
+In version <= 1.10, it assumed that all events should be handled after
+chopstx_poll, before calling chopstx_poll again.  With having
+chopstx_intr_done, it's OK now that chopstx_poll can be called again
+not examining/handling all poll descriptors, but only parts of them.
+
+** Acknowledge button change
+In 1.10, the action was able to be "memorized" by the edge detector.
+Now, the edge detector is disabled by ackbtn_disable, and it is
+enabled by ackbtn_enable.  So, the status is cleared correctly.
+
+** New board support: FST-01SZ
+It's still under development.  Programming-wise, it will be kept same.
+
+
+* Major changes in Chopstx 1.10
+
+  Released 2018-09-29
+
+** Function chopstx_intr_wait is not deprecated, now
+Once, it was said that it's deprecated, but it's active again
+to match the new function of chopstx_intr_done.
+
+** API change: chopstx_poll, chopstx_intr_wait, chopstx_intr_done
+To avoid spurious interrupt, we introduce new function
+chopstx_intr_done, which should be called after interrupt handling.
+
+** New driver: Acknowledge button for FST-01SZ
+The use case is waiting user's acknowledge.  We use EXTI interrupt
+feature of STM32.
+
+
 * Major changes in Chopstx 1.9
 
   Released 2018-05-09
@@ -42,7 +110,7 @@ Timer expiration had a bug.  When it is waken up, the wake up doesn't
 handle as a timer expiration when there are multiple threads on same
 timing of expire.  It confuses as if it were forced wakeup.
 
-** New driver: USART for STM32.
+** New driver: USART for STM32
 USART driver for STM32 is added.
 
 
@@ -377,11 +445,11 @@ Vectored Interrupt Controller (NVIC), in the ARM v7-M Architecture
 Reference Manual.  The subsection, B3.4.1, Theory of operation,
 explains how it works.
 
-
 ** gpio_init change
 Now, gpi_init support AFIO mapping and another GPIO (GPIO_OTHER)
 settings.
 
-Local Variables:
-mode: outline
-End:
+
+# Local Variables:
+# mode: outline
+# End:

README

@@ -1,6 +1,6 @@
 Chopstx - Threads and only Threads
-							 Version 1.9
-							  2018-05-09
+							Version 1.14
+							  2018-03-02
 							Niibe Yutaka
 					     Flying Stone Technology
 

VERSION

@@ -1 +1 @@
-release/1.9
+release/1.14

board/board-fst-01.h

@@ -71,6 +71,7 @@
  * Those will be removed soon, once such an driver will be improved
  * in new style.
  */
+#if defined(PINPAD_CIR_SUPPORT)
 /* For pin-cir settings of Gnuk */
 #define TIMx                  TIM2
 #define INTR_REQ_TIM          TIM2_IRQ
@@ -83,3 +84,4 @@
 #define ENABLE_RCC_APB1
 #define RCC_APBnENR_TIMxEN    RCC_APB1ENR_TIM2EN
 #define RCC_APBnRSTR_TIMxRST  RCC_APB1RSTR_TIM2RST
+#endif

board/board-fst-01g.h

@@ -71,7 +71,7 @@
  * Those will be removed soon, once such an driver will be improved
  * in new style.
  */
-/* For pin-cir settings of Gnuk */
+#if defined(PINPAD_CIR_SUPPORT)
 #define TIMx                  TIM2
 #define INTR_REQ_TIM          TIM2_IRQ
 #define AFIO_EXTICR_INDEX     0
@@ -83,3 +83,4 @@
 #define ENABLE_RCC_APB1
 #define RCC_APBnENR_TIMxEN    RCC_APB1ENR_TIM2EN
 #define RCC_APBnRSTR_TIMxRST  RCC_APB1RSTR_TIM2RST
+#endif

board/board-fst-01sz.h

@@ -0,0 +1,43 @@
+#define BOARD_NAME "FST-01SZ"
+#define BOARD_ID    0x7e6fb084
+/* echo -n "FST-01SZ" | sha256sum | sed -e 's/^.*\(........\)  -$/\1/' */
+
+#define MCU_STM32F1_GD32F1 1
+#define STM32_USBPRE                    STM32_USBPRE_DIV2
+#define STM32_ADCPRE                    STM32_ADCPRE_DIV8
+
+#define MCU_STM32F1 1
+#define STM32F10X_MD		/* Medium-density device */
+
+#define STM32_PLLXTPRE                  STM32_PLLXTPRE_DIV1
+#define STM32_PLLMUL_VALUE              8
+#define STM32_HSECLK                    12000000
+
+#define GPIO_LED_BASE   GPIOA_BASE
+#define GPIO_LED_SET_TO_EMIT            8
+#define GPIO_USB_BASE   GPIOA_BASE
+#undef  GPIO_OTHER_BASE
+
+/*
+ * Port A setup.
+ * PA0  - input with pull-up: AN0 for NeuG
+ * PA1  - input with pull-up: AN1 for NeuG
+ * PA3  - input with pull-up: Hall effect sensor output
+ * PA8  - Push pull output 10MHz 0 default (LED 1:ON 0:OFF)
+ * PA11 - Push Pull output 10MHz 0 default (until USB enabled) (USBDM)
+ * PA12 - Push Pull output 10MHz 0 default (until USB enabled) (USBDP)
+ * ------------------------ Default
+ * PAx  - input with pull-up.
+ */
+#define VAL_GPIO_LED_ODR            0xFFFFE6FF
+#define VAL_GPIO_LED_CRL            0x88888888      /*  PA7...PA0 */
+#define VAL_GPIO_LED_CRH            0x88811881      /* PA15...PA8 */
+
+#define RCC_ENR_IOP_EN      RCC_APB2ENR_IOPAEN
+#define RCC_RSTR_IOP_RST    RCC_APB2RSTR_IOPARST
+
+/*
+ * Board specific information other than clock and GPIO initial
+ * setting should not be in board-*.h, but each driver should include
+ * such specific information by itself.
+ */

board/board-st-nucleo-f103.h

@@ -49,17 +49,26 @@
  * Port B setup.
  * PB0  - input with pull-up: AN8 for NeuG
  * PB1  - input with pull-up: AN9 for NeuG
- * PB10 - Alternate function push pull output 2MHz USART3-TX
- * PB11 - Input with pull-up                       USART3-RX
- * PB12 - Alternate function push pull output 2MHz USART3-CK
- * PB13 - Input with pull-up                       USART3-CTS
- * PB14 - Alternate function push pull output 2MHz USART3-RTS
+ * ---
+ * ---
+ * PB4  - Input with pull-up: Card insertion detect: 0 when detected
+ * ---
+ * PB6  - Output push pull 2MHz: Vcc for card: default 0
+ * ---
+ * PB8  - Output push pull 2MHz: Vpp for card: default 0
+ * PB9  - Output push pull 2MHz: RST for card: default 0
+ * PB10 - Alternate function open-drain output 50MHz USART3-TX
+ * PB11 - Input with pull-up                         USART3-RX
+ * PB12 - Alternate function push pull output  50MHz USART3-CK
+ * PB13 - Input with pull-up                         USART3-CTS
+ * PB14 - Alternate function push pull output  50MHz USART3-RTS
+ * ---
  * ------------------------ Default
  * PBx  - input with pull-up.
  */
-#define VAL_GPIO_OTHER_ODR          0xFFFFFFFF
-#define VAL_GPIO_OTHER_CRL          0x88888888      /*  PB7...PB0 */
-#define VAL_GPIO_OTHER_CRH          0x8A8A8A88      /* PB15...PB8 */
+#define VAL_GPIO_OTHER_ODR          0xFFFFFCBF
+#define VAL_GPIO_OTHER_CRL          0x82888888      /*  PB7...PB0 */
+#define VAL_GPIO_OTHER_CRH          0x8B8B8F22      /* PB15...PB8 */
 
 #define RCC_ENR_IOP_EN      (RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPBEN)
 #define RCC_RSTR_IOP_RST    (RCC_APB2RSTR_IOPARST | RCC_APB2RSTR_IOPBRST)

board/board-stm8s-discovery.h

@@ -44,7 +44,7 @@
 #define VAL_GPIO_OTHER_CRH 0x88888888      /* PB15...PB8 */
 
 
-/* For pin-cir settings of Gnuk */
+#if defined(PINPAD_CIR_SUPPORT)
 #define TIMx                  TIM3
 #define INTR_REQ_TIM          TIM3_IRQ
 #define AFIO_EXTICR_INDEX     1
@@ -58,3 +58,4 @@
 #define RCC_APBnRSTR_TIMxRST  RCC_APB1RSTR_TIM3RST
 #define AFIO_MAPR_SOMETHING   AFIO_MAPR_TIM3_REMAP_PARTIALREMAP
                               /* Remap (PB4, PB5) -> (TIM3_CH1, TIM3_CH2) */
+#endif

chopstx-cortex-m.c

@@ -2,7 +2,7 @@
  * chopstx-cortex-m.c - Threads and only threads: Arch specific code
  *                      for Cortex-M0/M3
  *
- * Copyright (C) 2013, 2014, 2015, 2016, 2017
+ * Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018
  *               Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
@@ -28,6 +28,13 @@
  *
  */
 
+/* Data Memory Barrier.  */
+static void
+chx_dmb (void)
+{
+  asm volatile ("dmb"  : : : "memory");
+}
+
 /* Saved registers on the stack.  */
 struct chx_stack_regs {
   uint32_t reg[8];	       /* r0, r1, r2, r3, r12, lr, pc, xpsr */
@@ -286,8 +293,8 @@ chx_request_preemption (uint16_t prio)
  * 	AAPCS: ARM Architecture Procedure Call Standard
  *
  * Returns:
- *          1 on wakeup by others.
- *          0 on normal wakeup (timer expiration, lock aquirement).
+ *       >= 1 on wakeup by others, value means ticks remained for sleep.
+ *          0 on normal wakeup (timer expiration, lock acquirement).
  *         -1 on cancellation.
  */
 static uintptr_t __attribute__ ((naked, noinline))

chopstx-gnu-linux.c

@@ -2,7 +2,7 @@
  * chopstx-gnu-linux.c - Threads and only threads: Arch specific code
  *                       for GNU/Linux emulation
  *
- * Copyright (C) 2017 Flying Stone Technology
+ * Copyright (C) 2017, 2018 Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -32,6 +32,13 @@
 #include <signal.h>
 #include <sys/time.h>
 
+/* Data Memory Barrier.  */
+static void
+chx_dmb (void)
+{
+}
+
+
 static sigset_t ss_cur;
 
 static void

chopstx.c

@@ -1,7 +1,7 @@
 /*
  * chopstx.c - Threads and only threads.
  *
- * Copyright (C) 2013, 2014, 2015, 2016, 2017
+ * Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019
  *               Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
@@ -107,7 +107,7 @@ static struct chx_queue q_intr;
 static void chx_request_preemption (uint16_t prio);
 static int chx_wakeup (struct chx_pq *p);
 static struct chx_thread * chx_timer_insert (struct chx_thread *tp, uint32_t usec);
-static void chx_timer_dequeue (struct chx_thread *tp);
+static uint32_t chx_timer_dequeue (struct chx_thread *tp);
 
 
 
@@ -349,29 +349,35 @@ chx_timer_insert (struct chx_thread *tp, uint32_t usec)
 }
 
 
-static void
+static uint32_t
 chx_timer_dequeue (struct chx_thread *tp)
 {
   struct chx_thread *tp_prev;
+  uint32_t ticks_remained;
 
   chx_spin_lock (&q_timer.lock);
+  ticks_remained = chx_systick_get ();
   tp_prev = (struct chx_thread *)tp->prev;
   if (tp_prev == (struct chx_thread *)&q_timer.q)
     {
       if (tp->next == (struct chx_pq *)&q_timer.q)
-	chx_set_timer (tp_prev, 0); /* Cancel timer*/
+	chx_systick_reload (0);                      /* Cancel timer.  */
       else
-	{			/* Update timer.  */
-	  uint32_t next_ticks = chx_systick_get () + tp->v;
-
-	  chx_set_timer (tp_prev, next_ticks);
-	}
+	chx_systick_reload (ticks_remained + tp->v); /* Update timer.  */
     }
   else
-    tp_prev->v += tp->v;
+    {
+      struct chx_pq *p;
+
+      for (p = q_timer.q.next; p != (struct chx_pq *)tp; p = p->next)
+	ticks_remained += p->v;
+
+      tp_prev->v += tp->v;
+    }
   ll_dequeue ((struct chx_pq *)tp);
   tp->v = 0;
   chx_spin_unlock (&q_timer.lock);
+  return ticks_remained;
 }
 
 
@@ -502,9 +508,11 @@ chx_wakeup (struct chx_pq *pq)
       tp = px->master;
       if (tp->state == THREAD_WAIT_POLL)
 	{
-	  tp->v = (uintptr_t)1;
 	  if (tp->parent == &q_timer.q)
-	    chx_timer_dequeue (tp);
+	    tp->v = (uintptr_t)chx_timer_dequeue (tp);
+	  else
+	    tp->v = (uintptr_t)1;
+
 	  chx_ready_enqueue (tp);
 	  if (!running || tp->prio > running->prio)
 	    yield = 1;
@@ -559,19 +567,21 @@ chx_exit (void *retval)
 
 /*
  * Lower layer mutex unlocking.  Called with schedule lock held.
+ * Return PRIO of the thread which is waken up.
  */
 static chopstx_prio_t
 chx_mutex_unlock (chopstx_mutex_t *mutex)
 {
   struct chx_thread *tp;
-  chopstx_prio_t prio = 0;
 
   mutex->owner = NULL;
   running->mutex_list = mutex->list;
   mutex->list = NULL;
 
   tp = (struct chx_thread *)ll_pop (&mutex->q);
-  if (tp)
+  if (!tp)
+    return 0;
+  else
     {
       uint16_t newprio = running->prio_orig;
       chopstx_mutex_t *m;
@@ -587,11 +597,8 @@ chx_mutex_unlock (chopstx_mutex_t *mutex)
       /* Then, assign it.  */
       running->prio = newprio;
 
-      if (prio < tp->prio)
-	prio = tp->prio;
+      return tp->prio;
     }
-
-  return prio;
 }
 
 #define CHOPSTX_PRIO_MASK ((1 << CHOPSTX_PRIO_BITS) - 1)
@@ -679,6 +686,11 @@ chx_snooze (uint32_t state, uint32_t *usec_p)
   r = chx_sched (CHX_SLEEP);
   if (r == 0)
     *usec_p -= usec0;
+  else if (r > 0)
+    {
+      *usec_p -= (usec0 - r / MHZ);
+      r = 1;
+    }
 
   return r;
 }
@@ -803,9 +815,10 @@ chopstx_mutex_lock (chopstx_mutex_t *mutex)
 	  if (tp0->state == THREAD_WAIT_TIME
 	      || tp0->state == THREAD_WAIT_POLL)
 	    {
-	      tp0->v = (uintptr_t)1;
 	      if (tp0->parent == &q_timer.q)
-		chx_timer_dequeue (tp0);
+		tp0->v = (uintptr_t)chx_timer_dequeue (tp0);
+	      else
+		tp0->v = (uintptr_t)1;
 
 	      chx_ready_enqueue (tp0);
 	      tp0 = NULL;
@@ -969,6 +982,7 @@ chx_cond_hook (struct chx_px *px, struct chx_poll_head *pd)
     { /* Condition doesn't met.
        * Register the proxy to wait for the condition.
        */
+      pc->ready = 0;
       chx_cpu_sched_lock ();
       chx_spin_lock (&pc->cond->lock);
       ll_prio_enqueue ((struct chx_pq *)px, &pc->cond->q);
@@ -998,6 +1012,7 @@ chopstx_claim_irq (chopstx_intr_t *intr, uint8_t irq_num)
   chx_cpu_sched_lock ();
   chx_spin_lock (&q_intr.lock);
   chx_disable_intr (irq_num);
+  chx_clr_intr (irq_num);
   chx_set_intr_prio (irq_num);
   chx_spin_unlock (&q_intr.lock);
   chx_cpu_sched_unlock ();
@@ -1012,10 +1027,19 @@ chx_intr_hook (struct chx_px *px, struct chx_poll_head *pd)
   chopstx_testcancel ();
   chx_cpu_sched_lock ();
   px->v = intr->irq_num;
-  chx_spin_lock (&q_intr.lock);
-  ll_prio_enqueue ((struct chx_pq *)px, &q_intr.q);
-  chx_enable_intr (intr->irq_num);
-  chx_spin_unlock (&q_intr.lock);
+  if (intr->ready)
+    {
+      chx_spin_lock (&px->lock);
+      (*px->counter_p)++;
+      chx_spin_unlock (&px->lock);
+    }
+  else
+    {
+      chx_spin_lock (&q_intr.lock);
+      ll_prio_enqueue ((struct chx_pq *)px, &q_intr.q);
+      chx_enable_intr (intr->irq_num);
+      chx_spin_unlock (&q_intr.lock);
+    }
   chx_cpu_sched_unlock ();
 }
 
@@ -1034,6 +1058,26 @@ chopstx_intr_wait (chopstx_intr_t *intr)
 }
 
 
+/**
+ * chopstx_intr_done - Finish an IRQ handling
+ * @intr: Pointer to INTR structure
+ *
+ * Finish for the interrupt @intr occurred.
+ *
+ */
+void
+chopstx_intr_done (chopstx_intr_t *intr)
+{
+  chx_dmb ();
+
+  if (intr->ready)
+    {
+      chx_clr_intr (intr->irq_num);
+      intr->ready = 0;
+    }
+}
+
+
 /**
  * chopstx_cleanup_push - Register a clean-up
  * @clp: Pointer to clean-up structure
@@ -1198,6 +1242,7 @@ chx_join_hook (struct chx_px *px, struct chx_poll_head *pd)
     { /* Not yet exited.
        * Register the proxy to wait for TP's exit.
        */
+      pj->ready = 0;
       px->v = (uintptr_t)tp;
       chx_spin_lock (&q_join.lock);
       ll_prio_enqueue ((struct chx_pq *)px, &q_join.q);
@@ -1315,7 +1360,8 @@ chx_proxy_init (struct chx_px *px, uint32_t *cp)
 
 /**
  * chopstx_poll - wait for condition variable, thread's exit, or IRQ
- * @usec_p: Pointer to usec for timeout.  Forever if NULL.
+ * @usec_p: Pointer to usec for timeout.  Forever if NULL.  It is
+ * updated on return
  * @n: Number of poll descriptors
  * @pd_array: Pointer to an array of poll descriptor pointer which
  * should be one of:
@@ -1332,6 +1378,7 @@ chopstx_poll (uint32_t *usec_p, int n, struct chx_poll_head *const pd_array[])
   struct chx_poll_head *pd;
   int r = 0;
 
+  chx_dmb ();
   chopstx_testcancel ();
 
   for (i = 0; i < n; i++)
@@ -1340,7 +1387,6 @@ chopstx_poll (uint32_t *usec_p, int n, struct chx_poll_head *const pd_array[])
   for (i = 0; i < n; i++)
     {
       pd = pd_array[i];
-      pd->ready = 0;
       px[i].ready_p = &pd->ready;
       if (pd->type == CHOPSTX_POLL_COND)
 	chx_cond_hook (&px[i], pd);
@@ -1384,6 +1430,7 @@ chopstx_poll (uint32_t *usec_p, int n, struct chx_poll_head *const pd_array[])
       while (r == 0);
     }
 
+  chx_dmb ();
   for (i = 0; i < n; i++)
     {
       pd = pd_array[i];
@@ -1404,9 +1451,7 @@ chopstx_poll (uint32_t *usec_p, int n, struct chx_poll_head *const pd_array[])
 	{
 	  struct chx_intr *intr = (struct chx_intr *)pd;
 
-	  if (intr->ready)
-	    chx_clr_intr (intr->irq_num);
-	  else
+	  if (intr->ready == 0)
 	    {
 	      chx_spin_lock (&q_intr.lock);
 	      ll_dequeue ((struct chx_pq *)&px[i]);

chopstx.h

@@ -1,7 +1,7 @@
 /*
  * chopstx.h - Threads and only threads.
  *
- * Copyright (C) 2013, 2016, 2017 Flying Stone Technology
+ * Copyright (C) 2013, 2016, 2017, 2018  Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -155,7 +155,8 @@ typedef struct chx_intr chopstx_intr_t;
 
 void chopstx_claim_irq (chopstx_intr_t *intr, uint8_t irq_num);
 
-void chopstx_intr_wait (chopstx_intr_t *intr); /* DEPRECATED */
+void chopstx_intr_wait (chopstx_intr_t *intr);
+void chopstx_intr_done (chopstx_intr_t *intr);
 
 
 int chopstx_poll (uint32_t *usec_p, int n,

contrib/ackbtn-stm32f103.c

@@ -0,0 +1,115 @@
+/*
+ * ackbtn-stm32f103.c - Acknowledge button support for STM32F103
+ *
+ * Copyright (C) 2018  g10 Code GmbH
+ * 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 <string.h>
+#include <chopstx.h>
+#include <mcu/stm32f103.h>
+
+#include "board.h"
+#include "sys.h"
+
+/*
+ * All EXTI registers (EXTI_IMR, EXTI_EMR, EXTI_PR , EXTI_RTSR, and
+ * EXTI_FTSR) have same structure, where each bit of X is used for
+ * line X, from 0 up to 19.
+ *
+ * We use 31-bit of PIN_CONFIG to represent if it's for rising edge or
+ * falling edge.
+ */
+static uint32_t pin_config;
+#define PINCFG_EDGE        0x80000000
+#define PINCFG_EDGE_RISING PINCFG_EDGE
+
+void
+ackbtn_init (chopstx_intr_t *intr)
+{
+  uint8_t irq_num;
+  uint32_t afio_exticr_index;
+  uint32_t afio_exticr_extiX_pY;
+
+  switch (SYS_BOARD_ID)
+    {
+    case BOARD_ID_FST_01:
+    case BOARD_ID_FST_01G:
+      /* PA2 can be connected to a hall sensor or a switch */
+      afio_exticr_index = 0;
+      afio_exticr_extiX_pY = AFIO_EXTICR1_EXTI2_PA;
+      irq_num = EXTI2_IRQ;
+      pin_config = 0x0004; /* EXTI_PR_PR2 == EXTI_IMR_MR2 == EXTI_RTSR_TR2 */
+      pin_config |= PINCFG_EDGE_RISING;
+      break;
+
+    case BOARD_ID_FST_01SZ:
+    default:
+      /* PA3 is connected to a hall sensor DRV5032FA */
+      afio_exticr_index = 0;
+      afio_exticr_extiX_pY = AFIO_EXTICR1_EXTI3_PA;
+      irq_num = EXTI3_IRQ;
+      pin_config = 0x0008; /* EXTI_PR_PR3 == EXTI_IMR_MR3 == EXTI_RTSR_TR3 */
+      pin_config |= PINCFG_EDGE_RISING;
+      break;
+    }
+
+  /* Configure EXTI line */
+  if (afio_exticr_extiX_pY)
+    AFIO->EXTICR[afio_exticr_index] |= afio_exticr_extiX_pY;
+
+  /* Interrupt is masked, now */
+  EXTI->IMR &= ~(pin_config & ~PINCFG_EDGE);
+
+  chopstx_claim_irq (intr, irq_num);
+}
+
+void
+ackbtn_enable (void)
+{
+  /* Clear pending interrupt */
+  EXTI->PR |= (pin_config & ~PINCFG_EDGE);
+  /* Enable interrupt, clearing the mask */
+  EXTI->IMR |= (pin_config & ~PINCFG_EDGE);
+
+  /* Configure which edge is detected */
+  if ((pin_config & PINCFG_EDGE))
+    EXTI->RTSR |= (pin_config & ~PINCFG_EDGE);
+  else
+    EXTI->FTSR |= (pin_config & ~PINCFG_EDGE);
+}
+
+void
+ackbtn_disable (void)
+{
+  /* Disable interrupt having the mask */
+  EXTI->IMR &= ~(pin_config & ~PINCFG_EDGE);
+  /* Clear pending interrupt */
+  EXTI->PR |= (pin_config & ~PINCFG_EDGE);
+
+  /* Disable edge detection */
+  EXTI->RTSR &= ~(pin_config & ~PINCFG_EDGE);
+  EXTI->FTSR &= ~(pin_config & ~PINCFG_EDGE);
+}

contrib/ackbtn.h

@@ -0,0 +1,3 @@
+void ackbtn_init (chopstx_intr_t *intr);
+void ackbtn_enable (void);
+void ackbtn_disable (void);

contrib/adc-mkl27z.c

@@ -295,19 +295,20 @@ adc_stop (void)
 int
 adc_wait_completion (void)
 {
-  struct chx_poll_head *pd_array[1] = { (struct chx_poll_head *)&adc_intr };
   int i;
 
   while (1)
     {
       /* Wait DMA completion */
-      chopstx_poll (NULL, 1, pd_array);
+      chopstx_intr_wait (&adc_intr);
 
       DMA0->DSR_BCR = (1 << 24);
       DMA1->DSR_BCR = (1 << 24);
 
       adc_stop_conversion ();
 
+      chopstx_intr_done (&adc_intr);
+
       for (i = 0; i < adc.count; i++)
 	*adc.p++ = (uint8_t)adc.buf[i];
 

contrib/adc-stm32f103.c

@@ -192,6 +192,7 @@ get_adc_config (uint32_t config[4])
     case BOARD_ID_STM8S_DISCOVERY:
     case BOARD_ID_ST_DONGLE:
     case BOARD_ID_NITROKEY_START:
+    case BOARD_ID_FST_01SZ:
     default:
       config[0] = 0;
       config[1] = ADC_SMPR2_SMP_AN0(ADC_SAMPLE_1P5)
@@ -315,11 +316,10 @@ int
 adc_wait_completion (void)
 {
   uint32_t flags;
-  struct chx_poll_head *pd_array[1] = { (struct chx_poll_head *)&adc_intr };
 
   while (1)
     {
-      chopstx_poll (NULL, 1, pd_array);
+      chopstx_intr_wait (&adc_intr);
       flags = DMA1->ISR & STM32_DMA_ISR_MASK; /* Channel 1 interrupt cause.  */
       /*
        * Clear interrupt cause of channel 1.
@@ -328,6 +328,7 @@ adc_wait_completion (void)
        * and TEIF.
        */
       DMA1->IFCR = (flags & ~1);
+      chopstx_intr_done (&adc_intr);
 
       if ((flags & STM32_DMA_ISR_TEIF) != 0)  /* DMA errors  */
 	{

contrib/usart-stm32f103.c

@@ -1,7 +1,7 @@
 /*
  * usart-stm32.c - USART driver for STM32F103 (USART2 and USART3)
  *
- * Copyright (C) 2017  g10 Code GmbH
+ * Copyright (C) 2017, 2019  g10 Code GmbH
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -104,6 +104,7 @@ static const struct brr_setting brr_table[] = {
   { B230400, (   9 << 4)|12},
   { B460800, (   4 << 4)|14},
   { B921600, (   2 << 4)|7},
+  { BSCARD,  ( 232 << 4)|8},
 };
 
 static void *usart_main (void *arg);
@@ -111,6 +112,18 @@ static void *usart_main (void *arg);
 static struct usart_stat usart2_stat;
 static struct usart_stat usart3_stat;
 
+void
+usart_config_clken (uint8_t dev_no, int on)
+{
+  struct USART *USARTx = get_usart_dev (dev_no);
+
+  if (on)
+    USARTx->CR2 |= (1 << 11);
+  else
+    USARTx->CR2 &= ~(1 << 11);
+}
+
+
 int
 usart_config (uint8_t dev_no, uint32_t config_bits)
 {
@@ -136,9 +149,9 @@ usart_config (uint8_t dev_no, uint32_t config_bits)
     return -1;
 
   if ((config_bits & PARENB) == 0)
-    cr1_config &= ~USART_CR1_PCE;
+    cr1_config &= ~(USART_CR1_PCE | USART_CR1_PEIE);
   else
-    cr1_config |=  USART_CR1_PCE;
+    cr1_config |=  (USART_CR1_PCE | USART_CR1_PEIE);
 
   if ((config_bits & PARODD) == 0)
     cr1_config &= ~USART_CR1_PS;
@@ -169,6 +182,21 @@ usart_config (uint8_t dev_no, uint32_t config_bits)
     USARTx->CR3 = 0;
 
   USARTx->CR1 = cr1_config;
+
+  /* SCEN (smartcard enable) should be set _after_ CR1.  */
+  if ((config_bits & MASK_MODE))
+    {
+      if ((config_bits & MASK_MODE) == MODE_SMARTCARD)
+	{
+	  USARTx->GTPR = (16 << 8) | 5;
+	  USARTx->CR3 |= ((1 << 5) | (1 << 4));
+	}
+      else if ((config_bits & MASK_MODE) == MODE_IRDA)
+	USARTx->CR3 |= (1 << 1);
+      else if ((config_bits & MASK_MODE) == MODE_IRDA_LP)
+	USARTx->CR3 |= (1 << 2) | (1 << 1);
+    }
+
   return 0;
 }
 
@@ -187,8 +215,6 @@ usart_init (uint16_t prio, uintptr_t stack_addr, size_t stack_size,
   RCC->APB1RSTR = ((1 << 18) | (1 << 17));
   RCC->APB1RSTR = 0;
 
-  usart_config (2, B115200 | CS8 | STOP1B);
-  usart_config (3, B115200 | CS8 | STOP1B);
   chopstx_create (prio, stack_addr, stack_size, usart_main, NULL);
 }
 
@@ -541,10 +567,16 @@ usart_main (void *arg)
       chopstx_poll (NULL, n, usart_poll);
 
       if (usart2_intr.ready)
-	usart2_tx_ready = handle_intr (USART2, &usart2_rb_h2a, &usart2_stat);
+	{
+	  usart2_tx_ready = handle_intr (USART2, &usart2_rb_h2a, &usart2_stat);
+	  chopstx_intr_done (&usart2_intr);
+	}
 
       if (usart3_intr.ready)
-	usart3_tx_ready = handle_intr (USART3, &usart3_rb_h2a, &usart3_stat);
+	{
+	  usart3_tx_ready = handle_intr (USART3, &usart3_rb_h2a, &usart3_stat);
+	  chopstx_intr_done (&usart3_intr);
+	}
 
       if (usart2_tx_ready && usart2_app_write_event.ready)
 	usart2_tx_ready = handle_tx_ready (USART2,

contrib/usart.h

@@ -11,6 +11,7 @@
 #define B230400     26
 #define B460800     27
 #define B921600     28
+#define BSCARD      63
 #define MASK_BAUD 0x3f
 
 /* POSIX supports 5, 6.  USB suppots 16 */
@@ -43,6 +44,13 @@ PAR_BITS  3
 /* USB: SERIAL_STATE
    DSR DCD RI */
 
+/* non-POSIX, non-USB-CDC configs */
+#define MODE_SMARTCARD (1 << 30)
+#define MODE_IRDA      (2UL << 30)
+#define MODE_IRDA_LP   (3UL << 30)
+#define MASK_MODE      (0x3UL << 30)
+/* 0: standard, 1: smartcard, 2: IrDA, 3: IrDA-LP */
+
 struct usart_stat {
   uint8_t dev_no;
 
@@ -64,3 +72,4 @@ int usart_read (uint8_t dev_no, char *buf, uint16_t buflen);
 int usart_write (uint8_t dev_no, char *buf, uint16_t buflen);
 const struct usart_stat *usart_stat (uint8_t dev_no);
 int usart_send_break (uint8_t dev_no);
+void usart_config_clken (uint8_t dev_no, int on);

doc/chopstx-api.texi

@@ -107,6 +107,14 @@ Claim interrupt @var{intr} with @var{irq_num}
 Wait for the interrupt @var{intr} to be occured.
 @end deftypefun
 
+@subheading chopstx_intr_done
+@anchor{chopstx_intr_done}
+@deftypefun {void} {chopstx_intr_done} (chopstx_intr_t * @var{intr})
+@var{intr}: Pointer to INTR structure
+
+Finish for the interrupt @var{intr} occurred.
+@end deftypefun
+
 @subheading chopstx_cleanup_push
 @anchor{chopstx_cleanup_push}
 @deftypefun {void} {chopstx_cleanup_push} (struct chx_cleanup * @var{clp})

doc/chopstx.texi

@@ -1,7 +1,7 @@
 \input texinfo                      @c -*-texinfo-*-
 @c %**start of header
 @setfilename chopstx.info
-@set VERSION 1.9
+@set VERSION 1.14
 @settitle Chopstx Reference Manual
 @c Unify some of the indices.
 @syncodeindex tp fn

eventflag.c

@@ -1,7 +1,7 @@
 /*
  * eventflag.c - Eventflag
  *
- * Copyright (C) 2013, 2016  Flying Stone Technology
+ * Copyright (C) 2013, 2016, 2018  Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -36,17 +36,29 @@ void
 eventflag_init (struct eventflag *ev)
 {
   ev->flags = 0;
+  ev->mask = ~0;
   chopstx_cond_init (&ev->cond);
   chopstx_mutex_init (&ev->mutex);
 }
 
 
+void
+eventflag_set_mask (struct eventflag *ev, eventmask_t m)
+{
+  chopstx_mutex_lock (&ev->mutex);
+  ev->mask = m;
+  if ((ev->flags & ev->mask))
+    chopstx_cond_signal (&ev->cond);
+  chopstx_mutex_unlock (&ev->mutex);
+}
+
+
 static int
 eventflag_check (void *arg)
 {
   struct eventflag *ev = arg;
 
-  return ev->flags != 0;
+  return (ev->flags & ev->mask) != 0;
 }
 
 
@@ -62,6 +74,9 @@ eventflag_prepare_poll (struct eventflag *ev, chopstx_poll_cond_t *poll_desc)
 }
 
 
+/* When multiple events are marked, event with lower bit has precedence.
+   Because __builtin_ffs returns the least significant 1-bit.  */
+
 eventmask_t
 eventflag_get (struct eventflag *ev)
 {
@@ -69,7 +84,7 @@ eventflag_get (struct eventflag *ev)
   eventmask_t m;
 
   chopstx_mutex_lock (&ev->mutex);
-  n = __builtin_ffs (ev->flags);
+  n = __builtin_ffs ((ev->flags & ev->mask));
   if (n)
     {
       m = (1 << (n - 1));
@@ -90,10 +105,10 @@ eventflag_wait (struct eventflag *ev)
   eventmask_t m;
 
   chopstx_mutex_lock (&ev->mutex);
-  if (!ev->flags)
+  while (!(ev->flags & ev->mask))
     chopstx_cond_wait (&ev->cond, &ev->mutex);
 
-  n = __builtin_ffs (ev->flags);
+  n = __builtin_ffs ((ev->flags & ev->mask));
   if (n) /* Always n > 0 when waked up, but make sure no bad things.  */
     {
       m = (1 << (n - 1));
@@ -124,6 +139,7 @@ eventflag_signal (struct eventflag *ev, eventmask_t m)
 {
   chopstx_mutex_lock (&ev->mutex);
   ev->flags |= m;
-  chopstx_cond_signal (&ev->cond);
+  if ((ev->flags & ev->mask))
+    chopstx_cond_signal (&ev->cond);
   chopstx_mutex_unlock (&ev->mutex);
 }

eventflag.h

@@ -2,11 +2,13 @@ typedef uint32_t eventmask_t;
 
 struct eventflag {
   eventmask_t flags;
+  eventmask_t mask;
   chopstx_mutex_t mutex;
   chopstx_cond_t cond;
 };
 
 void eventflag_init (struct eventflag *ev);
+void eventflag_set_mask (struct eventflag *ev, eventmask_t m);
 eventmask_t eventflag_wait (struct eventflag *ev);
 eventmask_t eventflag_wait_timeout (struct eventflag *ev, uint32_t usec);
 void eventflag_signal (struct eventflag *ev, eventmask_t m);

example-cdc-gnu-linux/usb-cdc.c

@@ -708,6 +708,7 @@ tty_main (void *arg)
 	   *        
 	   */
 	  e = usb_lld_event_handler (&dev);
+	  chopstx_intr_done (&usb_intr);
 	  ep_num = USB_EVENT_ENDP (e);
 
 	  if (ep_num != 0)

example-cdc/Makefile

@@ -10,6 +10,7 @@ CHIP=stm32f103
 
 USE_SYS = yes
 USE_USB = yes
+ENABLE_OUTPUT_HEX=yes
 
 ###################################
 CROSS = arm-none-eabi-
@@ -19,7 +20,7 @@ OBJCOPY   = $(CROSS)objcopy
 
 MCU   = cortex-m3
 CWARN = -Wall -Wextra -Wstrict-prototypes
-DEFS  = -DUSE_SYS3 -DFREE_STANDING
+DEFS  = -DUSE_SYS3 -DFREE_STANDING -DMHZ=72
 OPT   = -O3 -Os -g
 LIBS  =
 

example-cdc/usb-cdc.c

@@ -719,6 +719,7 @@ tty_main (void *arg)
 	   *        
 	   */
 	  e = usb_lld_event_handler (&dev);
+	  chopstx_intr_done (&usb_intr);
 	  ep_num = USB_EVENT_ENDP (e);
 
 	  if (ep_num != 0)

example-fraucheky/main.c

@@ -185,6 +185,7 @@ usb_main (void *arg)
 
 	event_handle:
 	  e = usb_lld_event_handler (&dev);
+	  chopstx_intr_done (&interrupt);
 	  ep_num = USB_EVENT_ENDP (e);
 
 	  if (ep_num != 0)

example-fs-bb48/touch.c

@@ -74,6 +74,7 @@ touch_get (void)
   TPM1->SC = 0;
   TPM1->CNT = 0xffff;	   /* Writing causes reset of the counter.  */
 
+  chopstx_intr_done (&tpm1_intr);
   return v;
 }
 

example-fs-bb48/usb-cdc.c

@@ -708,6 +708,7 @@ tty_main (void *arg)
 	   *        
 	   */
 	  e = usb_lld_event_handler (&dev);
+	  chopstx_intr_done (&usb_intr);
 	  ep_num = USB_EVENT_ENDP (e);
 
 	  if (ep_num != 0)

example-primer2/primer2-ts.c

@@ -107,6 +107,10 @@ void adc3_conversion (uint32_t *result)
   /* Stop conversion.  */
   ADC3->CR2 &= ~ADC_CR2_JSWSTART;
 
+#if USE_ADC3_INTR
+  chopstx_intr_done (&adc3_intr);
+#endif
+
   return;
 }
 

example-usb-serial/Makefile

@@ -20,7 +20,7 @@ OBJCOPY   = $(CROSS)objcopy
 
 MCU   = cortex-m3
 CWARN = -Wall -Wextra -Wstrict-prototypes
-DEFS  = -DUSE_SYS3 -DFREE_STANDING
+DEFS  = -DUSE_SYS3 -DFREE_STANDING -DMHZ=72
 OPT   = -O3 -Os -g
 LIBS  =
 

example-usb-serial/README

@@ -1,12 +1,19 @@
 This is an application example using ST Nucleo F103 board.
 
-SB62 and SB63 should be soldered.
-ST-Link/V2 is disconnected (SB13 and SB14).
+SB62 and SB63 should be soldered to connect PA2 and PA3 to CN10
+connector.
+
+ST-Link/V2's TX and RX are disconnected (by removing SB13 and SB14).
+
+Smartcard can be connected, by using USART3_TX for I/O and USART3_CK
+for CLK, PB6 for Vcc, PB8 for Vpp, and PB9 for RST.
+
 
 NOTE:
 
 Using the USB CDC-ACM for serial communication is a kind of wrong,
-because it's designed for modem;  No way to control CTSRTS. 
+because it's designed for modem; In the protocol, we have no way to
+control the CTSRTS signal.
 
 TIOCGICOUNT
 
@@ -19,4 +26,4 @@ TODO:
 * stats report control
   By vendor specific control?
 * Half-duplex support
-* Support of other communication mode: smartcard, IrDA, etc.
+* Support of other communication mode: IrDA, etc.

example-usb-serial/sample.c

@@ -238,6 +238,9 @@ main (int argc, const char *argv[])
 
   usart_init (PRIO_USART, STACK_ADDR_USART, STACK_SIZE_USART, ss_notify);
 
+  usart_config (2, B115200 | CS8 | STOP1B);
+  usart_config (3, B115200 | CS8 | STOP1B);
+
   cdc_usart0.cdc = cdc_open (0);
   cdc_usart0.dev_no = 2;
   cdc_usart1.cdc = cdc_open (1);

example-usb-serial/usb-cdc.c

@@ -770,6 +770,7 @@ cdc_main (void *arg)
 	   *        
 	   */
 	  e = usb_lld_event_handler (&dev);
+	  chopstx_intr_done (&usb_intr);
 	  ep_num = USB_EVENT_ENDP (e);
 
 	  if (ep_num != 0)

mcu/clk_gpio_init-stm32.c

@@ -1,7 +1,7 @@
 /*
  * clk_gpio_init-stm32.c - Clock and GPIO initialization for STM32.
  *
- * Copyright (C) 2015  Flying Stone Technology
+ * Copyright (C) 2015, 2018  Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -26,7 +26,11 @@
  *
  */
 
+#if defined(MCU_STM32F0)
 #include <mcu/stm32.h>
+#else
+#include <mcu/stm32f103.h>
+#endif
 
 #if defined(MCU_STM32F0)
 #define STM32_PPRE1		STM32_PPRE1_DIV1
@@ -57,34 +61,6 @@
 #define STM32_HCLK		(STM32_SYSCLK / 1)
 
 
-#if defined(MCU_STM32F0)
-struct SYSCFG {
-  volatile uint32_t CFGR1;
-  uint32_t dummy0;
-  volatile uint32_t EXTICR[4];
-  volatile uint32_t CFGR2;
-};
-#define SYSCFG_CFGR1_MEM_MODE 0x03
-
-#define SYSCFG_BASE	(APB1PERIPH_BASE + 0x00010000)
-static struct SYSCFG *const SYSCFG = (struct SYSCFG *)SYSCFG_BASE;
-#endif
-
-struct FLASH {
-  volatile uint32_t ACR;
-  volatile uint32_t KEYR;
-  volatile uint32_t OPTKEYR;
-  volatile uint32_t SR;
-  volatile uint32_t CR;
-  volatile uint32_t AR;
-  volatile uint32_t RESERVED;
-  volatile uint32_t OBR;
-  volatile uint32_t WRPR;
-};
-
-#define FLASH_R_BASE	(AHBPERIPH_BASE + 0x2000)
-static struct FLASH *const FLASH = (struct FLASH *)FLASH_R_BASE;
-
 static void __attribute__((used))
 clock_init (void)
 {
@@ -140,75 +116,6 @@ clock_init (void)
 }
 
 
-#if defined(MCU_STM32F0)
-struct GPIO {
-  volatile uint32_t MODER;
-  volatile uint16_t OTYPER;
-  uint16_t dummy0;
-  volatile uint32_t OSPEEDR;
-  volatile uint32_t PUPDR;
-  volatile uint16_t IDR;
-  uint16_t dummy1;
-  volatile uint16_t ODR;
-  uint16_t dummy2;
-  volatile uint16_t BSRR;
-  uint16_t dummy3;
-  volatile uint32_t LCKR;
-  volatile uint32_t AFR[2];
-  volatile uint16_t BRR;
-  uint16_t dummy4;
-};
-
-#define GPIOA_BASE	(AHB2PERIPH_BASE + 0x0000)
-#define GPIOA		((struct GPIO *) GPIOA_BASE)
-#define GPIOB_BASE	(AHB2PERIPH_BASE + 0x0400)
-#define GPIOB		((struct GPIO *) GPIOB_BASE)
-#define GPIOC_BASE	(AHB2PERIPH_BASE + 0x0800)
-#define GPIOC		((struct GPIO *) GPIOC_BASE)
-#define GPIOD_BASE	(AHB2PERIPH_BASE + 0x0C00)
-#define GPIOD		((struct GPIO *) GPIOD_BASE)
-#define GPIOF_BASE	(AHB2PERIPH_BASE + 0x1400)
-#define GPIOF		((struct GPIO *) GPIOF_BASE)
-#else
-struct AFIO
-{
-  volatile uint32_t EVCR;
-  volatile uint32_t MAPR;
-  volatile uint32_t EXTICR[4];
-  uint32_t RESERVED0;
-  volatile uint32_t MAPR2;
-};
-
-#define AFIO_BASE 0x40010000
-static struct AFIO *const AFIO = (struct AFIO *)AFIO_BASE;
-
-#define AFIO_MAPR_TIM3_REMAP_PARTIALREMAP 0x00000800
-#define AFIO_MAPR_SWJ_CFG_DISABLE         0x04000000
-#define AFIO_MAPR_SWJ_CFG_JTAGDISABLE     0x02000000
-
-
-struct GPIO {
-  volatile uint32_t CRL;
-  volatile uint32_t CRH;
-  volatile uint32_t IDR;
-  volatile uint32_t ODR;
-  volatile uint32_t BSRR;
-  volatile uint32_t BRR;
-  volatile uint32_t LCKR;
-};
-
-#define GPIOA_BASE	(APB2PERIPH_BASE + 0x0800)
-#define GPIOA		((struct GPIO *) GPIOA_BASE)
-#define GPIOB_BASE	(APB2PERIPH_BASE + 0x0C00)
-#define GPIOB		((struct GPIO *) GPIOB_BASE)
-#define GPIOC_BASE	(APB2PERIPH_BASE + 0x1000)
-#define GPIOC		((struct GPIO *) GPIOC_BASE)
-#define GPIOD_BASE	(APB2PERIPH_BASE + 0x1400)
-#define GPIOD		((struct GPIO *) GPIOD_BASE)
-#define GPIOE_BASE	(APB2PERIPH_BASE + 0x1800)
-#define GPIOE		((struct GPIO *) GPIOE_BASE)
-#endif
-
 static struct GPIO *const GPIO_LED = (struct GPIO *)GPIO_LED_BASE;
 #ifdef GPIO_USB_BASE
 static struct GPIO *const GPIO_USB = (struct GPIO *)GPIO_USB_BASE;
@@ -248,7 +155,7 @@ gpio_init (void)
   AFIO->MAPR |= AFIO_MAPR_SOMETHING;
 #endif
 
-  /* LED is mandatory.  If it's on an independent port, we configure it.  */
+  /* LED is mandatory.  We configure it always.  */
   GPIO_LED->ODR = VAL_GPIO_LED_ODR;
   GPIO_LED->CRH = VAL_GPIO_LED_CRH;
   GPIO_LED->CRL = VAL_GPIO_LED_CRL;

mcu/stm32.h

@@ -140,3 +140,85 @@ static struct PWR *const PWR = ((struct PWR *)0x40007000);
 #define PWR_CR_LPDS 0x0001	/* Low-power deepsleep  */
 #define PWR_CR_PDDS 0x0002	/* Power down deepsleep */
 #define PWR_CR_CWUF 0x0004	/* Clear wakeup flag    */
+
+
+#if defined(MCU_STM32F0)
+struct GPIO {
+  volatile uint32_t MODER;
+  volatile uint16_t OTYPER;
+  uint16_t dummy0;
+  volatile uint32_t OSPEEDR;
+  volatile uint32_t PUPDR;
+  volatile uint16_t IDR;
+  uint16_t dummy1;
+  volatile uint16_t ODR;
+  uint16_t dummy2;
+  volatile uint16_t BSRR;
+  uint16_t dummy3;
+  volatile uint32_t LCKR;
+  volatile uint32_t AFR[2];
+  volatile uint16_t BRR;
+  uint16_t dummy4;
+};
+
+#define GPIOA_BASE	(AHB2PERIPH_BASE + 0x0000)
+#define GPIOA		((struct GPIO *) GPIOA_BASE)
+#define GPIOB_BASE	(AHB2PERIPH_BASE + 0x0400)
+#define GPIOB		((struct GPIO *) GPIOB_BASE)
+#define GPIOC_BASE	(AHB2PERIPH_BASE + 0x0800)
+#define GPIOC		((struct GPIO *) GPIOC_BASE)
+#define GPIOD_BASE	(AHB2PERIPH_BASE + 0x0C00)
+#define GPIOD		((struct GPIO *) GPIOD_BASE)
+#define GPIOF_BASE	(AHB2PERIPH_BASE + 0x1400)
+#define GPIOF		((struct GPIO *) GPIOF_BASE)
+#else
+struct GPIO {
+  volatile uint32_t CRL;
+  volatile uint32_t CRH;
+  volatile uint32_t IDR;
+  volatile uint32_t ODR;
+  volatile uint32_t BSRR;
+  volatile uint32_t BRR;
+  volatile uint32_t LCKR;
+};
+
+#define GPIOA_BASE	(APB2PERIPH_BASE + 0x0800)
+#define GPIOA		((struct GPIO *) GPIOA_BASE)
+#define GPIOB_BASE	(APB2PERIPH_BASE + 0x0C00)
+#define GPIOB		((struct GPIO *) GPIOB_BASE)
+#define GPIOC_BASE	(APB2PERIPH_BASE + 0x1000)
+#define GPIOC		((struct GPIO *) GPIOC_BASE)
+#define GPIOD_BASE	(APB2PERIPH_BASE + 0x1400)
+#define GPIOD		((struct GPIO *) GPIOD_BASE)
+#define GPIOE_BASE	(APB2PERIPH_BASE + 0x1800)
+#define GPIOE		((struct GPIO *) GPIOE_BASE)
+#endif
+
+
+#if defined(MCU_STM32F0)
+struct SYSCFG {
+  volatile uint32_t CFGR1;
+  uint32_t dummy0;
+  volatile uint32_t EXTICR[4];
+  volatile uint32_t CFGR2;
+};
+#define SYSCFG_CFGR1_MEM_MODE 0x03
+
+#define SYSCFG_BASE	(APB1PERIPH_BASE + 0x00010000)
+static struct SYSCFG *const SYSCFG = (struct SYSCFG *)SYSCFG_BASE;
+#endif
+
+struct FLASH {
+  volatile uint32_t ACR;
+  volatile uint32_t KEYR;
+  volatile uint32_t OPTKEYR;
+  volatile uint32_t SR;
+  volatile uint32_t CR;
+  volatile uint32_t AR;
+  volatile uint32_t RESERVED;
+  volatile uint32_t OBR;
+  volatile uint32_t WRPR;
+};
+
+#define FLASH_R_BASE	(AHBPERIPH_BASE + 0x2000)
+static struct FLASH *const FLASH = (struct FLASH *)FLASH_R_BASE;

mcu/stm32f103.h

@@ -574,6 +574,8 @@ static struct EXTI *const EXTI = (struct EXTI *)EXTI_BASE;
 #define EXTI0_IRQ    6
 #define EXTI1_IRQ    7
 #define EXTI2_IRQ    8
+#define EXTI3_IRQ    9
+#define EXTI4_IRQ   10
 #define EXTI9_5_IRQ 23
 #define TIM2_IRQ    28
 #define TIM3_IRQ    29
@@ -633,6 +635,7 @@ static struct AFIO *const AFIO = (struct AFIO *)AFIO_BASE;
 
 #define AFIO_MAPR_TIM3_REMAP_PARTIALREMAP 0x00000800
 #define AFIO_MAPR_SWJ_CFG_DISABLE         0x04000000
+#define AFIO_MAPR_SWJ_CFG_JTAGDISABLE     0x02000000
 
 
 struct DBGMCU {

mcu/sys-mkl27z.c

@@ -23,14 +23,14 @@
 #include "board.h"
 
 #define ADDR_VECTORS (0x00000900)
-#define ADDR_SCR_VTOR 0xe000ed08
+#define ADDR_SCB_VTOR 0xe000ed08
 
 static void __attribute__ ((naked,section(".fixed_function.reset")))
 reset (void)
 {
-  uint32_t r3 = ADDR_SCR_VTOR;
+  uint32_t r3 = ADDR_SCB_VTOR;
 
-  asm volatile ("str	%2, [%0]\n\t"	  /* Set SCR->VTOR     */
+  asm volatile ("str	%2, [%0]\n\t"	  /* Set SCB->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 */

mcu/sys-stm32f0.c

@@ -340,13 +340,13 @@ reset (void)
 #else
   extern const uint32_t FT0[256], FT1[256], FT2[256];
   asm volatile ("cpsid	i\n\t"		/* Mask all interrupts. */
-		"ldr	r0, 1f\n\t"     /* r0 = SCR */
+		"ldr	r0, 1f\n\t"     /* r0 = SCB start */
 		"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 */
+		"str	r1, [r0, #8]\n\t"	/* Set SCB->VTOR */
 		"ldr	r0, [r1], #4\n\t"
 		"msr	MSP, r0\n\t"	/* Main (exception handler) stack. */
 		"ldr	r0, [r1]\n\t"	/* Reset handler.                  */

mcu/sys-stm32f103.c

@@ -18,7 +18,6 @@
 #include <stdlib.h>
 #include "board.h"
 
-#include "mcu/cortex-m.h"
 #include "mcu/clk_gpio_init-stm32.c"
 
 
@@ -322,13 +321,13 @@ reset (void)
    * So, we take the address from PC.
    */
   asm volatile ("cpsid	i\n\t"		/* Mask all interrupts. */
-		"ldr	r0, 1f\n\t"     /* r0 = SCR */
+		"ldr	r0, 1f\n\t"     /* r0 = SCB start */
 		"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 */
+		"str	r1, [r0, #8]\n\t"	/* Set SCB->VTOR */
 		"ldr	r0, [r1], #4\n\t"
 		"msr	MSP, r0\n\t"	/* Main (exception handler) stack. */
 		"ldr	r0, [r1]\n\t"	/* Reset handler.                  */

mcu/sys-stm32f103.h

@@ -2,6 +2,7 @@
 #define BOARD_ID_FST_01_00         0x613870a9
 #define BOARD_ID_FST_01            0x696886af
 #define BOARD_ID_FST_01G           0x8801277f
+#define BOARD_ID_FST_01SZ          0x7e6fb084
 #define BOARD_ID_MAPLE_MINI        0x7a445272
 #define BOARD_ID_OLIMEX_STM32_H103 0xf92bb594
 #define BOARD_ID_STBEE_MINI        0x1f341961

mcu/usb-mkl27z.c

@@ -1,7 +1,7 @@
 /*
  * usb-mkl27z.c - USB driver for MKL27Z
  *
- * Copyright (C) 2016  Flying Stone Technology
+ * Copyright (C) 2016, 2018  Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -950,11 +950,11 @@ usb_lld_ctrl_send (struct usb_dev *dev, const void *buf, size_t buflen)
   data_p->len = buflen;
 
   /* Restrict the data length to be the one host asks for */
-  if (data_p->len > len_asked)
+  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);
+  /* ZLP is only required when host doesn't expect the end of packets.  */
+  else 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)
     {

mcu/usb-stm32f103.c

@@ -1,7 +1,7 @@
 /*
  * usb-stm32f103.c - USB driver for STM32F103
  *
- * Copyright (C) 2016, 2017  Flying Stone Technology
+ * Copyright (C) 2016, 2017, 2018  Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -1105,10 +1105,10 @@ usb_lld_ctrl_send (struct usb_dev *dev, const void *buf, size_t buflen)
   data_p->len = buflen;
 
   /* Restrict the data length to be the one host asks for */
-  if (data_p->len > len_asked)
+  if (data_p->len >= len_asked)
     data_p->len = len_asked;
-
-  if (data_p->len != 0 && (data_p->len % USB_MAX_PACKET_SIZE) == 0)
+  /* ZLP is only required when host doesn't expect the end of packets.  */
+  else 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)

mcu/usb-usbip.c

@@ -1,7 +1,7 @@
 /*
  * usb-usbip.c - USB Device Emulation (server side) by USBIP
  *
- * Copyright (C) 2017 g10 Code GmbH
+ * Copyright (C) 2017, 2018  g10 Code GmbH
  * Author: NIIBE Yutaka <gniibe@fsij.org>
  *
  * This file is a part of Chopstx, a thread library for embedded.
@@ -2169,10 +2169,10 @@ usb_lld_ctrl_send (struct usb_dev *dev, const void *buf, size_t buflen)
   data_p->len = buflen;
 
   /* Restrict the data length to be the one host asks for */
-  if (data_p->len > len_asked)
+  if (data_p->len >= len_asked)
     data_p->len = len_asked;
-
-  if (data_p->len != 0 && (data_p->len % USB_MAX_PACKET_SIZE) == 0)
+  /* ZLP is only required when host doesn't expect the end of packets.  */
+  else 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)

rules.mk

@@ -28,6 +28,9 @@ endif
 ifneq ($(USE_USART),)
 CSRC += $(CHOPSTX)/contrib/usart-$(CHIP).c
 endif
+ifneq ($(USE_ACKBTN),)
+CSRC += $(CHOPSTX)/contrib/ackbtn-$(CHIP).c
+endif
 
 INCDIR += $(CHOPSTX)