/*
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "ch.h"
#include "hal.h"
/*
* Maximum speed SPI configuration (18MHz, CPHA=0, CPOL=0, MSb first).
*/
static const SPIConfig hs_spicfg = {
NULL,
GPIOB,
12,
0,
SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0
};
/*
* Low speed SPI configuration (140.625kHz, CPHA=0, CPOL=0, MSb first).
*/
static const SPIConfig ls_spicfg = {
NULL,
GPIOB,
12,
SPI_CR1_BR_2 | SPI_CR1_BR_1,
SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0
};
/*
* SPI TX and RX buffers.
*/
static uint8_t txbuf[512];
static uint8_t rxbuf[512];
/*
* SPI bus contender 1.
*/
static THD_WORKING_AREA(spi_thread_1_wa, 256);
static msg_t spi_thread_1(void *p) {
(void)p;
chRegSetThreadName("SPI thread 1");
while (TRUE) {
spiAcquireBus(&SPID2); /* Acquire ownership of the bus. */
palSetPad(GPIOC, GPIOC_LED4); /* LED ON. */
spiStart(&SPID2, &hs_spicfg); /* Setup transfer parameters. */
spiSelect(&SPID2); /* Slave Select assertion. */
spiExchange(&SPID2, 512,
txbuf, rxbuf); /* Atomic transfer operations. */
spiUnselect(&SPID2); /* Slave Select de-assertion. */
spiReleaseBus(&SPID2); /* Ownership release. */
}
return 0;
}
/*
* SPI bus contender 2.
*/
static THD_WORKING_AREA(spi_thread_2_wa, 256);
static msg_t spi_thread_2(void *p) {
(void)p;
chRegSetThreadName("SPI thread 2");
while (TRUE) {
spiAcquireBus(&SPID2); /* Acquire ownership of the bus. */
palClearPad(GPIOC, GPIOC_LED4); /* LED OFF. */
spiStart(&SPID2, &ls_spicfg); /* Setup transfer parameters. */
spiSelect(&SPID2); /* Slave Select assertion. */
spiExchange(&SPID2, 512,
txbuf, rxbuf); /* Atomic transfer operations. */
spiUnselect(&SPID2); /* Slave Select de-assertion. */
spiReleaseBus(&SPID2); /* Ownership release. */
}
return 0;
}
/*
* This is a periodic thread that does absolutely nothing except flashing
* a LED.
*/
static THD_WORKING_AREA(blinker_wa, 128);
static msg_t blinker(void *arg) {
(void)arg;
chRegSetThreadName("blinker");
while (TRUE) {
palSetPad(GPIOC, GPIOC_LED3);
chThdSleepMilliseconds(500);
palClearPad(GPIOC, GPIOC_LED3);
chThdSleepMilliseconds(500);
}
}
/*
* Application entry point.
*/
int main(void) {
unsigned i;
/*
* System initializations.
* - HAL initialization, this also initializes the configured device drivers
* and performs the board-specific initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
halInit();
chSysInit();
/*
* SPI2 I/O pins setup.
*/
palSetPadMode(GPIOB, 13, PAL_MODE_ALTERNATE(0) |
PAL_STM32_OSPEED_HIGHEST); /* New SCK. */
palSetPadMode(GPIOB, 14, PAL_MODE_ALTERNATE(0) |
PAL_STM32_OSPEED_HIGHEST); /* New MISO. */
palSetPadMode(GPIOB, 15, PAL_MODE_ALTERNATE(0) |
PAL_STM32_OSPEED_HIGHEST); /* New MOSI. */
palSetPad(GPIOB, 12);
palSetPadMode(GPIOB, 12, PAL_MODE_OUTPUT_PUSHPULL |
PAL_STM32_OSPEED_HIGHEST); /* New CS. */
/*
* Prepare transmit pattern.
*/
for (i = 0; i < sizeof(txbuf); i++)
txbuf[i] = (uint8_t)i;
/*
* Starting the transmitter and receiver threads.
*/
chThdCreateStatic(spi_thread_1_wa, sizeof(spi_thread_1_wa),
NORMALPRIO + 1, spi_thread_1, NULL);
chThdCreateStatic(spi_thread_2_wa, sizeof(spi_thread_2_wa),
NORMALPRIO + 1, spi_thread_2, NULL);
/*
* Starting the blinker thread.
*/
chThdCreateStatic(blinker_wa, sizeof(blinker_wa),
NORMALPRIO-1, blinker, NULL);
/*
* Normal main() thread activity, in this demo it does nothing.
*/
while (TRUE) {
chThdSleepMilliseconds(500);
}
return 0;
}
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/*
LUFA Library
Copyright (C) Dean Camera, 2017.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* USB Device Mode management functions and variables. This file contains the LUFA code required to
* manage the USB Mass Storage device mode.
*/
#include "USBDeviceMode.h"
/** Message buffer for RNDIS messages processed by the RNDIS device class driver. */
static uint8_t RNDIS_Message_Buffer[192];
/** LUFA RNDIS Class driver interface configuration and state information. This structure is
* passed to all RNDIS Class driver functions, so that multiple instances of the same class
* within a device can be differentiated from one another.
*/
USB_ClassInfo_RNDIS_Device_t Ethernet_RNDIS_Interface_Device =
{
.Config =
{
.ControlInterfaceNumber = INTERFACE_ID_CDC_CCI,
.DataINEndpoint =
{
.Address = CDC_TX_EPADDR,
.Size = CDC_TXRX_EPSIZE,
.Banks = 1,
},
.DataOUTEndpoint =
{
.Address = CDC_RX_EPADDR,
.Size = CDC_TXRX_EPSIZE,
.Banks = 1,
},
.NotificationEndpoint =
{
.Address = CDC_NOTIFICATION_EPADDR,
.Size = CDC_NOTIFICATION_EPSIZE,
.Banks = 1,
},
.AdapterVendorDescription = "LUFA RNDIS Adapter",
.AdapterMACAddress = {{0x02, 0x00, 0x02, 0x00, 0x02, 0x00}},
.MessageBuffer = RNDIS_Message_Buffer,
.MessageBufferLength = sizeof(RNDIS_Message_Buffer),
},
};
/** LUFA Mass Storage Class driver interface configuration and state information. This structure is
* passed to all Mass Storage Class driver functions, so that multiple instances of the same class
* within a device can be differentiated from one another.
*/
USB_ClassInfo_MS_Device_t Disk_MS_Interface =
{
.Config =
{
.InterfaceNumber = INTERFACE_ID_MassStorage,
.DataINEndpoint =
{
.Address = MASS_STORAGE_IN_EPADDR,
.Size = MASS_STORAGE_IO_EPSIZE,
.Banks = 1,
},
.DataOUTEndpoint =
{
.Address = MASS_STORAGE_OUT_EPADDR,
.Size = MASS_STORAGE_IO_EPSIZE,
.Banks = 1,
},
.TotalLUNs = 1,
},
};
/** USB device mode management task. This function manages the Mass Storage Device class driver when the device is
* initialized in USB device mode.
*/
void USBDeviceMode_USBTask(void)
{
if (USB_CurrentMode != USB_MODE_Device)
return;
uIPManagement_ManageNetwork();
RNDIS_Device_USBTask(&Ethernet_RNDIS_Interface_Device);
MS_Device_USBTask(&Disk_MS_Interface);
}
/** Event handler for the library USB Connection event. */
void EVENT_USB_Device_Connect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
uIPManagement_Init();
}
/** Event handler for the library USB Disconnection event. */
void EVENT_USB_Device_Disconnect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
}
/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_Device_ConfigurationChanged(void)
{
bool ConfigSuccess = true;
ConfigSuccess &= RNDIS_Device_ConfigureEndpoints(&Ethernet_RNDIS_Interface_Device);
ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
}
/** Event handler for the library USB Control Request reception event. */
void EVENT_USB_Device_ControlRequest(void)
{
RNDIS_Device_ProcessControlRequest(&Ethernet_RNDIS_Interface_Device);
MS_Device_ProcessControlRequest(&Disk_MS_Interface);
}
/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
*
* \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced
*/
bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
{
bool CommandSuccess;
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
LEDs_SetAllLEDs(LEDMASK_USB_READY);
return CommandSuccess;
}
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