From eefaedd59cccaeddcde8f54f89c98a26cc570e82 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Wed, 7 May 2014 10:44:43 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6920 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32/STM32F37x/USB_CDC/main.c | 516 +++++++++++++++++++++++++++++++++ 1 file changed, 516 insertions(+) create mode 100644 testhal/STM32/STM32F37x/USB_CDC/main.c (limited to 'testhal/STM32/STM32F37x/USB_CDC/main.c') diff --git a/testhal/STM32/STM32F37x/USB_CDC/main.c b/testhal/STM32/STM32F37x/USB_CDC/main.c new file mode 100644 index 000000000..8730cabe6 --- /dev/null +++ b/testhal/STM32/STM32F37x/USB_CDC/main.c @@ -0,0 +1,516 @@ +/* + 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 +#include + +#include "ch.h" +#include "hal.h" +#include "test.h" + +#include "shell.h" +#include "chprintf.h" + +/*===========================================================================*/ +/* USB related stuff. */ +/*===========================================================================*/ + +/* + * Endpoints to be used for USBD1. + */ +#define USBD1_DATA_REQUEST_EP 1 +#define USBD1_DATA_AVAILABLE_EP 1 +#define USBD1_INTERRUPT_REQUEST_EP 2 + +/* + * DP resistor control. + */ +#define usb_lld_connect_bus(usbp) palClearPad(GPIOC, GPIOC_USB_DISCONNECT) +#define usb_lld_disconnect_bus(usbp) palSetPad(GPIOC, GPIOC_USB_DISCONNECT) + +/* + * Serial over USB Driver structure. + */ +static SerialUSBDriver SDU1; + +/* + * USB Device Descriptor. + */ +static const uint8_t vcom_device_descriptor_data[18] = { + USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */ + 0x02, /* bDeviceClass (CDC). */ + 0x00, /* bDeviceSubClass. */ + 0x00, /* bDeviceProtocol. */ + 0x40, /* bMaxPacketSize. */ + 0x0483, /* idVendor (ST). */ + 0x5740, /* idProduct. */ + 0x0200, /* bcdDevice. */ + 1, /* iManufacturer. */ + 2, /* iProduct. */ + 3, /* iSerialNumber. */ + 1) /* bNumConfigurations. */ +}; + +/* + * Device Descriptor wrapper. + */ +static const USBDescriptor vcom_device_descriptor = { + sizeof vcom_device_descriptor_data, + vcom_device_descriptor_data +}; + +/* Configuration Descriptor tree for a CDC.*/ +static const uint8_t vcom_configuration_descriptor_data[67] = { + /* Configuration Descriptor.*/ + USB_DESC_CONFIGURATION(67, /* wTotalLength. */ + 0x02, /* bNumInterfaces. */ + 0x01, /* bConfigurationValue. */ + 0, /* iConfiguration. */ + 0xC0, /* bmAttributes (self powered). */ + 50), /* bMaxPower (100mA). */ + /* Interface Descriptor.*/ + USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */ + 0x00, /* bAlternateSetting. */ + 0x01, /* bNumEndpoints. */ + 0x02, /* bInterfaceClass (Communications + Interface Class, CDC section + 4.2). */ + 0x02, /* bInterfaceSubClass (Abstract + Control Model, CDC section 4.3). */ + 0x01, /* bInterfaceProtocol (AT commands, + CDC section 4.4). */ + 0), /* iInterface. */ + /* Header Functional Descriptor (CDC section 5.2.3).*/ + USB_DESC_BYTE (5), /* bLength. */ + USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */ + USB_DESC_BYTE (0x00), /* bDescriptorSubtype (Header + Functional Descriptor. */ + USB_DESC_BCD (0x0110), /* bcdCDC. */ + /* Call Management Functional Descriptor. */ + USB_DESC_BYTE (5), /* bFunctionLength. */ + USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */ + USB_DESC_BYTE (0x01), /* bDescriptorSubtype (Call Management + Functional Descriptor). */ + USB_DESC_BYTE (0x00), /* bmCapabilities (D0+D1). */ + USB_DESC_BYTE (0x01), /* bDataInterface. */ + /* ACM Functional Descriptor.*/ + USB_DESC_BYTE (4), /* bFunctionLength. */ + USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */ + USB_DESC_BYTE (0x02), /* bDescriptorSubtype (Abstract + Control Management Descriptor). */ + USB_DESC_BYTE (0x02), /* bmCapabilities. */ + /* Union Functional Descriptor.*/ + USB_DESC_BYTE (5), /* bFunctionLength. */ + USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */ + USB_DESC_BYTE (0x06), /* bDescriptorSubtype (Union + Functional Descriptor). */ + USB_DESC_BYTE (0x00), /* bMasterInterface (Communication + Class Interface). */ + USB_DESC_BYTE (0x01), /* bSlaveInterface0 (Data Class + Interface). */ + /* Endpoint 2 Descriptor.*/ + USB_DESC_ENDPOINT (USBD1_INTERRUPT_REQUEST_EP|0x80, + 0x03, /* bmAttributes (Interrupt). */ + 0x0008, /* wMaxPacketSize. */ + 0xFF), /* bInterval. */ + /* Interface Descriptor.*/ + USB_DESC_INTERFACE (0x01, /* bInterfaceNumber. */ + 0x00, /* bAlternateSetting. */ + 0x02, /* bNumEndpoints. */ + 0x0A, /* bInterfaceClass (Data Class + Interface, CDC section 4.5). */ + 0x00, /* bInterfaceSubClass (CDC section + 4.6). */ + 0x00, /* bInterfaceProtocol (CDC section + 4.7). */ + 0x00), /* iInterface. */ + /* Endpoint 3 Descriptor.*/ + USB_DESC_ENDPOINT (USBD1_DATA_AVAILABLE_EP, /* bEndpointAddress.*/ + 0x02, /* bmAttributes (Bulk). */ + 0x0040, /* wMaxPacketSize. */ + 0x00), /* bInterval. */ + /* Endpoint 1 Descriptor.*/ + USB_DESC_ENDPOINT (USBD1_DATA_REQUEST_EP|0x80, /* bEndpointAddress.*/ + 0x02, /* bmAttributes (Bulk). */ + 0x0040, /* wMaxPacketSize. */ + 0x00) /* bInterval. */ +}; + +/* + * Configuration Descriptor wrapper. + */ +static const USBDescriptor vcom_configuration_descriptor = { + sizeof vcom_configuration_descriptor_data, + vcom_configuration_descriptor_data +}; + +/* + * U.S. English language identifier. + */ +static const uint8_t vcom_string0[] = { + USB_DESC_BYTE(4), /* bLength. */ + USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */ + USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */ +}; + +/* + * Vendor string. + */ +static const uint8_t vcom_string1[] = { + USB_DESC_BYTE(38), /* bLength. */ + USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */ + 'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0, + 'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0, + 'c', 0, 's', 0 +}; + +/* + * Device Description string. + */ +static const uint8_t vcom_string2[] = { + USB_DESC_BYTE(56), /* bLength. */ + USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */ + 'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0, + 'R', 0, 'T', 0, ' ', 0, 'V', 0, 'i', 0, 'r', 0, 't', 0, 'u', 0, + 'a', 0, 'l', 0, ' ', 0, 'C', 0, 'O', 0, 'M', 0, ' ', 0, 'P', 0, + 'o', 0, 'r', 0, 't', 0 +}; + +/* + * Serial Number string. + */ +static const uint8_t vcom_string3[] = { + USB_DESC_BYTE(8), /* bLength. */ + USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */ + '0' + CH_KERNEL_MAJOR, 0, + '0' + CH_KERNEL_MINOR, 0, + '0' + CH_KERNEL_PATCH, 0 +}; + +/* + * Strings wrappers array. + */ +static const USBDescriptor vcom_strings[] = { + {sizeof vcom_string0, vcom_string0}, + {sizeof vcom_string1, vcom_string1}, + {sizeof vcom_string2, vcom_string2}, + {sizeof vcom_string3, vcom_string3} +}; + +/* + * Handles the GET_DESCRIPTOR callback. All required descriptors must be + * handled here. + */ +static const USBDescriptor *get_descriptor(USBDriver *usbp, + uint8_t dtype, + uint8_t dindex, + uint16_t lang) { + + (void)usbp; + (void)lang; + switch (dtype) { + case USB_DESCRIPTOR_DEVICE: + return &vcom_device_descriptor; + case USB_DESCRIPTOR_CONFIGURATION: + return &vcom_configuration_descriptor; + case USB_DESCRIPTOR_STRING: + if (dindex < 4) + return &vcom_strings[dindex]; + } + return NULL; +} + +/** + * @brief IN EP1 state. + */ +static USBInEndpointState ep1instate; + +/** + * @brief OUT EP1 state. + */ +static USBOutEndpointState ep1outstate; + +/** + * @brief EP1 initialization structure (both IN and OUT). + */ +static const USBEndpointConfig ep1config = { + USB_EP_MODE_TYPE_BULK, + NULL, + sduDataTransmitted, + sduDataReceived, + 0x0040, + 0x0040, + &ep1instate, + &ep1outstate, + 1, + NULL +}; + +/** + * @brief IN EP2 state. + */ +static USBInEndpointState ep2instate; + +/** + * @brief EP2 initialization structure (IN only). + */ +static const USBEndpointConfig ep2config = { + USB_EP_MODE_TYPE_INTR, + NULL, + sduInterruptTransmitted, + NULL, + 0x0010, + 0x0000, + &ep2instate, + NULL, + 1, + NULL +}; + +/* + * Handles the USB driver global events. + */ +static void usb_event(USBDriver *usbp, usbevent_t event) { + + switch (event) { + case USB_EVENT_RESET: + return; + case USB_EVENT_ADDRESS: + return; + case USB_EVENT_CONFIGURED: + chSysLockFromISR(); + + /* Enables the endpoints specified into the configuration. + Note, this callback is invoked from an ISR so I-Class functions + must be used.*/ + usbInitEndpointI(usbp, USBD1_DATA_REQUEST_EP, &ep1config); + usbInitEndpointI(usbp, USBD1_INTERRUPT_REQUEST_EP, &ep2config); + + /* Resetting the state of the CDC subsystem.*/ + sduConfigureHookI(&SDU1); + + chSysUnlockFromISR(); + return; + case USB_EVENT_SUSPEND: + return; + case USB_EVENT_WAKEUP: + return; + case USB_EVENT_STALLED: + return; + } + return; +} + +/* + * USB driver configuration. + */ +static const USBConfig usbcfg = { + usb_event, + get_descriptor, + sduRequestsHook, + NULL +}; + +/* + * Serial over USB driver configuration. + */ +static const SerialUSBConfig serusbcfg = { + &USBD1, + USBD1_DATA_REQUEST_EP, + USBD1_DATA_AVAILABLE_EP, + USBD1_INTERRUPT_REQUEST_EP +}; + +/*===========================================================================*/ +/* Command line related. */ +/*===========================================================================*/ + +#define SHELL_WA_SIZE THD_WORKING_AREA_SIZE(2048) +#define TEST_WA_SIZE THD_WORKING_AREA_SIZE(256) + +static void cmd_mem(BaseSequentialStream *chp, int argc, char *argv[]) { + size_t n, size; + + (void)argv; + if (argc > 0) { + chprintf(chp, "Usage: mem\r\n"); + return; + } + n = chHeapStatus(NULL, &size); + chprintf(chp, "core free memory : %u bytes\r\n", chCoreStatus()); + chprintf(chp, "heap fragments : %u\r\n", n); + chprintf(chp, "heap free total : %u bytes\r\n", size); +} + +static void cmd_threads(BaseSequentialStream *chp, int argc, char *argv[]) { + static const char *states[] = {CH_STATE_NAMES}; + thread_t *tp; + + (void)argv; + if (argc > 0) { + chprintf(chp, "Usage: threads\r\n"); + return; + } + chprintf(chp, " addr stack prio refs state time\r\n"); + tp = chRegFirstThread(); + do { + chprintf(chp, "%.8lx %.8lx %4lu %4lu %9s\r\n", + (uint32_t)tp, (uint32_t)tp->p_ctx.r13, + (uint32_t)tp->p_prio, (uint32_t)(tp->p_refs - 1), + states[tp->p_state]); + tp = chRegNextThread(tp); + } while (tp != NULL); +} + +static void cmd_test(BaseSequentialStream *chp, int argc, char *argv[]) { + thread_t *tp; + + (void)argv; + if (argc > 0) { + chprintf(chp, "Usage: test\r\n"); + return; + } + tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriorityX(), + TestThread, chp); + if (tp == NULL) { + chprintf(chp, "out of memory\r\n"); + return; + } + chThdWait(tp); +} + +static void cmd_write(BaseSequentialStream *chp, int argc, char *argv[]) { + static uint8_t buf[] = + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef" + "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"; + + (void)argv; + if (argc > 0) { + chprintf(chp, "Usage: write\r\n"); + return; + } + + while (chnGetTimeout((BaseChannel *)chp, TIME_IMMEDIATE) == Q_TIMEOUT) { + chSequentialStreamWrite(&SDU1, buf, sizeof buf - 1); + } + chprintf(chp, "\r\n\nstopped\r\n"); +} + +static const ShellCommand commands[] = { + {"mem", cmd_mem}, + {"threads", cmd_threads}, + {"test", cmd_test}, + {"write", cmd_write}, + {NULL, NULL} +}; + +static const ShellConfig shell_cfg1 = { + (BaseSequentialStream *)&SDU1, + commands +}; + +/*===========================================================================*/ +/* Generic code. */ +/*===========================================================================*/ + +/* + * Red LED blinker thread, times are in milliseconds. + */ +static THD_WORKING_AREA(waThread1, 128); +static THD_FUNCTION(Thread1, arg) { + + (void)arg; + + chRegSetThreadName("blinker"); + while (TRUE) { + systime_t time = serusbcfg.usbp->state == USB_ACTIVE ? 250 : 500; + palClearPad(GPIOC, GPIOC_LED1); + chThdSleepMilliseconds(time); + palSetPad(GPIOC, GPIOC_LED1); + chThdSleepMilliseconds(time); + } +} + +/* + * Application entry point. + */ +int main(void) { + thread_t *shelltp = NULL; + + /* + * 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(); + + /* + * Initializes a serial-over-USB CDC driver. + */ + sduObjectInit(&SDU1); + sduStart(&SDU1, &serusbcfg); + + /* + * Activates the USB driver and then the USB bus pull-up on D+. + * Note, a delay is inserted in order to not have to disconnect the cable + * after a reset. + */ + usbDisconnectBus(serusbcfg.usbp); + chThdSleepMilliseconds(1500); + usbStart(serusbcfg.usbp, &usbcfg); + usbConnectBus(serusbcfg.usbp); + + /* + * Shell manager initialization. + */ + shellInit(); + + /* + * Creates the blinker thread. + */ + chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL); + + /* + * Normal main() thread activity, in this demo it does nothing except + * sleeping in a loop and check the button state. + */ + while (TRUE) { + if (!shelltp && (SDU1.config->usbp->state == USB_ACTIVE)) + shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO); + else if (chThdTerminatedX(shelltp)) { + chThdRelease(shelltp); /* Recovers memory of the previous shell. */ + shelltp = NULL; /* Triggers spawning of a new shell. */ + } + chThdSleepMilliseconds(1000); + } +} -- cgit v1.2.3