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authorChristian Pointner <equinox@spreadspace.org>2015-06-21 22:47:21 +0200
committerChristian Pointner <equinox@spreadspace.org>2015-06-21 22:47:21 +0200
commit24a1b19d6b6671284f05c63b03e420a408828bb9 (patch)
treed3b00a47612d60a23d3f7f1678885e563dabe687 /usb-spi
parentuse printf_P(PSTR(__fmt__... where possible (diff)
dos2unix for all files
Diffstat (limited to 'usb-spi')
-rw-r--r--usb-spi/Makefile90
-rw-r--r--usb-spi/usb-spi.c398
2 files changed, 244 insertions, 244 deletions
diff --git a/usb-spi/Makefile b/usb-spi/Makefile
index b0516bc..67e99aa 100644
--- a/usb-spi/Makefile
+++ b/usb-spi/Makefile
@@ -1,45 +1,45 @@
-##
-## spreadspace avr utils
-##
-##
-## Copyright (C) 2013-2014 Christian Pointner <equinox@spreadspace.org>
-##
-## This file is part of spreadspace avr utils.
-##
-## spreadspace avr utils 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
-## any later version.
-##
-## spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
-##
-
-NAME := usb-spi
-BOARD_TYPE := teensy2
-OBJ := $(NAME).o
-LIBS := util led lufa-descriptor-usbserial
-EXTERNAL_LIBS := lufa
-SPREADAVR_PATH := ..
-
-LUFA_PATH := $(SPREADAVR_PATH)/contrib/LUFA-120219
-LUFA_OPTS = -D USB_DEVICE_ONLY
-LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
-LUFA_OPTS += -D ORDERED_EP_CONFIG
-LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
-LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
-LUFA_OPTS += -D USE_FLASH_DESCRIPTORS
-LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
-LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT
-
-LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\"" -D USB_MANUFACTURER_LEN=7
-LUFA_OPTS += -D USB_PRODUCT="L\"spreadspace usb-spi example\"" -D USB_PRODUCT_LEN=27
-
-LUFA_COMPONENTS := USB USBCLASS
-
-include $(SPREADAVR_PATH)/include.mk
+##
+## spreadspace avr utils
+##
+##
+## Copyright (C) 2013-2014 Christian Pointner <equinox@spreadspace.org>
+##
+## This file is part of spreadspace avr utils.
+##
+## spreadspace avr utils 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
+## any later version.
+##
+## spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+##
+
+NAME := usb-spi
+BOARD_TYPE := teensy2
+OBJ := $(NAME).o
+LIBS := util led lufa-descriptor-usbserial
+EXTERNAL_LIBS := lufa
+SPREADAVR_PATH := ..
+
+LUFA_PATH := $(SPREADAVR_PATH)/contrib/LUFA-120219
+LUFA_OPTS = -D USB_DEVICE_ONLY
+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
+LUFA_OPTS += -D ORDERED_EP_CONFIG
+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
+LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT
+
+LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\"" -D USB_MANUFACTURER_LEN=7
+LUFA_OPTS += -D USB_PRODUCT="L\"spreadspace usb-spi example\"" -D USB_PRODUCT_LEN=27
+
+LUFA_COMPONENTS := USB USBCLASS
+
+include $(SPREADAVR_PATH)/include.mk
diff --git a/usb-spi/usb-spi.c b/usb-spi/usb-spi.c
index 1c000ed..6ae785a 100644
--- a/usb-spi/usb-spi.c
+++ b/usb-spi/usb-spi.c
@@ -1,199 +1,199 @@
-/*
- * spreadspace avr utils
- *
- *
- * Copyright (C) 2013-2014 Christian Pointner <equinox@spreadspace.org>
- *
- * This file is part of spreadspace avr utils.
- *
- * spreadspace avr utils 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
- * any later version.
- *
- * spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/interrupt.h>
-#include <avr/power.h>
-
-#include "util.h"
-#include "led.h"
-
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-#include <LUFA/Version.h>
-#include <LUFA/Drivers/Peripheral/SPI.h>
-#include <LUFA/Drivers/Misc/RingBuffer.h>
-#include <LUFA/Drivers/USB/USB.h>
-#include "lufa-descriptor-usbserial.h"
-
- /* Global I/O Buffers: */
-static RingBuffer_t USBtoSPI_Buffer;
-static uint8_t USBtoSPI_Buffer_Data[128];
-static RingBuffer_t SPItoUSB_Buffer;
-static uint8_t SPItoUSB_Buffer_Data[128];
-
-/** LUFA CDC Class driver interface configuration and state information. This structure is
- * passed to all CDC Class driver functions, so that multiple instances of the same class
- * within a device can be differentiated from one another.
- */
-USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
- {
- .Config =
- {
- .ControlInterfaceNumber = 0,
-
- .DataINEndpointNumber = CDC_TX_EPNUM,
- .DataINEndpointSize = CDC_TXRX_EPSIZE,
- .DataINEndpointDoubleBank = false,
-
- .DataOUTEndpointNumber = CDC_RX_EPNUM,
- .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
- .DataOUTEndpointDoubleBank = false,
-
- .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
- .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
- .NotificationEndpointDoubleBank = false,
- },
- };
-
-void EVENT_USB_Device_ConfigurationChanged(void)
-{
- CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
-}
-
-void EVENT_USB_Device_ControlRequest(void)
-{
- CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
-}
-
-/* end LUFA CDC-ACM specific definitions */
-
- /* Hardware Defines: */
-#define SPI_CS_DDR DDRB
-#define SPI_CS_PORT PORTB
-#define CS 0
-
-#define RESET_DDR DDRB
-#define RESET_PORT PORTB
-#define RESET 7
-
-void SetupHardware(void)
-{
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- cpu_init();
- led_init();
- USB_Init();
-
- TCCR0B = (1 << CS02);
-
- SPI_Init(SPI_SPEED_FCPU_DIV_16 | SPI_MODE_MASTER | SPI_ORDER_MSB_FIRST |
- SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING);
- SPI_CS_DDR |= (1<<CS);
- SPI_CS_PORT |= (1<<CS);
-
- RESET_DDR |= (1<<RESET);
- RESET_PORT |= (1<<RESET);
-
-/* INT0 as input with pull-up */
- DDRD &= ~(1<<0);
- PORTD |= (1<<0);
- EICRA |= (1<<ISC01);
- EIFR |= (1<<INTF0);
- EIMSK |= (1<<INT0);
-}
-
-void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
-{
- if(CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR)
- RESET_PORT &= ~(1<<RESET);
- else
- RESET_PORT |= (1<<RESET);
-}
-
-void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Duration)
-{
- SPI_CS_PORT ^= (1<<CS);
-}
-
-ISR(INT0_vect)
-{
- SPI_CS_PORT &= ~(1<<CS);
- led_on();
-
- uint8_t ReceivedByte = SPI_ReceiveByte();
- RingBuffer_Insert(&SPItoUSB_Buffer, ReceivedByte);
-
- led_off();
- SPI_CS_PORT |= (1<<CS);
-}
-
-void SPI_SendBuffer(void)
-{
- SPI_CS_PORT &= ~(1<<CS);
- led_on();
-
- while(!(RingBuffer_IsEmpty(&USBtoSPI_Buffer))) {
- SPI_SendByte(RingBuffer_Remove(&USBtoSPI_Buffer));
- }
-
- led_off();
- SPI_CS_PORT |= (1<<CS);
-}
-
-int main(void)
-{
- SetupHardware();
-
- RingBuffer_InitBuffer(&USBtoSPI_Buffer, USBtoSPI_Buffer_Data, sizeof(USBtoSPI_Buffer_Data));
- RingBuffer_InitBuffer(&SPItoUSB_Buffer, SPItoUSB_Buffer_Data, sizeof(SPItoUSB_Buffer_Data));
-
- sei();
-
- for (;;) {
- int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface);
- while(BytesReceived > 0) {
- if(!(RingBuffer_IsFull(&USBtoSPI_Buffer))) {
- int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
- if (!(ReceivedByte < 0))
- RingBuffer_Insert(&USBtoSPI_Buffer, ReceivedByte);
-
- BytesReceived--;
- }
- }
-
- uint16_t BufferCount = RingBuffer_GetCount(&SPItoUSB_Buffer);
- if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(SPItoUSB_Buffer_Data) * .75))) {
- TIFR0 |= (1 << TOV0);
- while (BufferCount--) {
- if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
- RingBuffer_Peek(&SPItoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
- break;
-
- RingBuffer_Remove(&SPItoUSB_Buffer);
- }
- }
-
- if (!(RingBuffer_IsEmpty(&USBtoSPI_Buffer)))
- SPI_SendBuffer();
-
- CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
- USB_USBTask();
- }
-}
+/*
+ * spreadspace avr utils
+ *
+ *
+ * Copyright (C) 2013-2014 Christian Pointner <equinox@spreadspace.org>
+ *
+ * This file is part of spreadspace avr utils.
+ *
+ * spreadspace avr utils 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
+ * any later version.
+ *
+ * spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+
+#include "util.h"
+#include "led.h"
+
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2012.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+#include <LUFA/Version.h>
+#include <LUFA/Drivers/Peripheral/SPI.h>
+#include <LUFA/Drivers/Misc/RingBuffer.h>
+#include <LUFA/Drivers/USB/USB.h>
+#include "lufa-descriptor-usbserial.h"
+
+ /* Global I/O Buffers: */
+static RingBuffer_t USBtoSPI_Buffer;
+static uint8_t USBtoSPI_Buffer_Data[128];
+static RingBuffer_t SPItoUSB_Buffer;
+static uint8_t SPItoUSB_Buffer_Data[128];
+
+/** LUFA CDC Class driver interface configuration and state information. This structure is
+ * passed to all CDC Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
+ {
+ .Config =
+ {
+ .ControlInterfaceNumber = 0,
+
+ .DataINEndpointNumber = CDC_TX_EPNUM,
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,
+ .DataINEndpointDoubleBank = false,
+
+ .DataOUTEndpointNumber = CDC_RX_EPNUM,
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
+ .DataOUTEndpointDoubleBank = false,
+
+ .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
+ .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
+ .NotificationEndpointDoubleBank = false,
+ },
+ };
+
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
+}
+
+void EVENT_USB_Device_ControlRequest(void)
+{
+ CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
+}
+
+/* end LUFA CDC-ACM specific definitions */
+
+ /* Hardware Defines: */
+#define SPI_CS_DDR DDRB
+#define SPI_CS_PORT PORTB
+#define CS 0
+
+#define RESET_DDR DDRB
+#define RESET_PORT PORTB
+#define RESET 7
+
+void SetupHardware(void)
+{
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ cpu_init();
+ led_init();
+ USB_Init();
+
+ TCCR0B = (1 << CS02);
+
+ SPI_Init(SPI_SPEED_FCPU_DIV_16 | SPI_MODE_MASTER | SPI_ORDER_MSB_FIRST |
+ SPI_SCK_LEAD_RISING | SPI_SAMPLE_LEADING);
+ SPI_CS_DDR |= (1<<CS);
+ SPI_CS_PORT |= (1<<CS);
+
+ RESET_DDR |= (1<<RESET);
+ RESET_PORT |= (1<<RESET);
+
+/* INT0 as input with pull-up */
+ DDRD &= ~(1<<0);
+ PORTD |= (1<<0);
+ EICRA |= (1<<ISC01);
+ EIFR |= (1<<INTF0);
+ EIMSK |= (1<<INT0);
+}
+
+void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ if(CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR)
+ RESET_PORT &= ~(1<<RESET);
+ else
+ RESET_PORT |= (1<<RESET);
+}
+
+void EVENT_CDC_Device_BreakSent(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Duration)
+{
+ SPI_CS_PORT ^= (1<<CS);
+}
+
+ISR(INT0_vect)
+{
+ SPI_CS_PORT &= ~(1<<CS);
+ led_on();
+
+ uint8_t ReceivedByte = SPI_ReceiveByte();
+ RingBuffer_Insert(&SPItoUSB_Buffer, ReceivedByte);
+
+ led_off();
+ SPI_CS_PORT |= (1<<CS);
+}
+
+void SPI_SendBuffer(void)
+{
+ SPI_CS_PORT &= ~(1<<CS);
+ led_on();
+
+ while(!(RingBuffer_IsEmpty(&USBtoSPI_Buffer))) {
+ SPI_SendByte(RingBuffer_Remove(&USBtoSPI_Buffer));
+ }
+
+ led_off();
+ SPI_CS_PORT |= (1<<CS);
+}
+
+int main(void)
+{
+ SetupHardware();
+
+ RingBuffer_InitBuffer(&USBtoSPI_Buffer, USBtoSPI_Buffer_Data, sizeof(USBtoSPI_Buffer_Data));
+ RingBuffer_InitBuffer(&SPItoUSB_Buffer, SPItoUSB_Buffer_Data, sizeof(SPItoUSB_Buffer_Data));
+
+ sei();
+
+ for (;;) {
+ int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface);
+ while(BytesReceived > 0) {
+ if(!(RingBuffer_IsFull(&USBtoSPI_Buffer))) {
+ int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
+ if (!(ReceivedByte < 0))
+ RingBuffer_Insert(&USBtoSPI_Buffer, ReceivedByte);
+
+ BytesReceived--;
+ }
+ }
+
+ uint16_t BufferCount = RingBuffer_GetCount(&SPItoUSB_Buffer);
+ if ((TIFR0 & (1 << TOV0)) || (BufferCount > (uint8_t)(sizeof(SPItoUSB_Buffer_Data) * .75))) {
+ TIFR0 |= (1 << TOV0);
+ while (BufferCount--) {
+ if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
+ RingBuffer_Peek(&SPItoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
+ break;
+
+ RingBuffer_Remove(&SPItoUSB_Buffer);
+ }
+ }
+
+ if (!(RingBuffer_IsEmpty(&USBtoSPI_Buffer)))
+ SPI_SendBuffer();
+
+ CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
+ USB_USBTask();
+ }
+}