/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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.
ChibiOS/RT 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 .
*/
#include
#include
#include "ch.h"
#include "hal.h"
#include "test.h"
#include "usb_cdc.h"
#include "chprintf.h"
#include "shell.h"
#include "lwipthread.h"
#include "web/web.h"
#include "ff.h"
/*===========================================================================*/
/* Card insertion monitor. */
/*===========================================================================*/
#define POLLING_INTERVAL 10
#define POLLING_DELAY 10
/**
* @brief Card monitor timer.
*/
static VirtualTimer tmr;
/**
* @brief Debounce counter.
*/
static unsigned cnt;
/**
* @brief Card event sources.
*/
static EventSource inserted_event, removed_event;
/**
* @brief Insertion monitor timer callback function.
*
* @param[in] p pointer to the @p BaseBlockDevice object
*
* @notapi
*/
static void tmrfunc(void *p) {
BaseBlockDevice *bbdp = p;
chSysLockFromIsr();
if (cnt > 0) {
if (blkIsInserted(bbdp)) {
if (--cnt == 0) {
chEvtBroadcastI(&inserted_event);
}
}
else
cnt = POLLING_INTERVAL;
}
else {
if (!blkIsInserted(bbdp)) {
cnt = POLLING_INTERVAL;
chEvtBroadcastI(&removed_event);
}
}
chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, bbdp);
chSysUnlockFromIsr();
}
/**
* @brief Polling monitor start.
*
* @param[in] p pointer to an object implementing @p BaseBlockDevice
*
* @notapi
*/
static void tmr_init(void *p) {
chEvtInit(&inserted_event);
chEvtInit(&removed_event);
chSysLock();
cnt = POLLING_INTERVAL;
chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, p);
chSysUnlock();
}
/*===========================================================================*/
/* FatFs related. */
/*===========================================================================*/
/**
* @brief FS object.
*/
static FATFS SDC_FS;
/* FS mounted and ready.*/
static bool_t fs_ready = FALSE;
/* Generic large buffer.*/
static uint8_t fbuff[1024];
static FRESULT scan_files(BaseSequentialStream *chp, char *path) {
FRESULT res;
FILINFO fno;
DIR dir;
int i;
char *fn;
#if _USE_LFN
fno.lfname = 0;
fno.lfsize = 0;
#endif
res = f_opendir(&dir, path);
if (res == FR_OK) {
i = strlen(path);
for (;;) {
res = f_readdir(&dir, &fno);
if (res != FR_OK || fno.fname[0] == 0)
break;
if (fno.fname[0] == '.')
continue;
fn = fno.fname;
if (fno.fattrib & AM_DIR) {
path[i++] = '/';
strcpy(&path[i], fn);
res = scan_files(chp, path);
if (res != FR_OK)
break;
path[--i] = 0;
}
else {
chprintf(chp, "%s/%s\r\n", path, fn);
}
}
}
return res;
}
/*===========================================================================*/
/* USB related stuff. */
/*===========================================================================*/
/*
* 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 (USB_CDC_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 (USB_CDC_DATA_AVAILABLE_EP, /* bEndpointAddress.*/
0x02, /* bmAttributes (Bulk). */
0x0040, /* wMaxPacketSize. */
0x00), /* bInterval. */
/* Endpoint 1 Descriptor.*/
USB_DESC_ENDPOINT (USB_CDC_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,
2,
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, USB_CDC_DATA_REQUEST_EP, &ep1config);
usbInitEndpointI(usbp, USB_CDC_INTERRUPT_REQUEST_EP, &ep2config);
/* Resetting the state of the CDC subsystem.*/
sduConfigureHookI(usbp);
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
};
/*===========================================================================*/
/* Command line related. */
/*===========================================================================*/
#define SHELL_WA_SIZE THD_WA_SIZE(2048)
#define TEST_WA_SIZE THD_WA_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[] = {THD_STATE_NAMES};
Thread *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 %lu\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], (uint32_t)tp->p_time);
tp = chRegNextThread(tp);
} while (tp != NULL);
}
static void cmd_test(BaseSequentialStream *chp, int argc, char *argv[]) {
Thread *tp;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: test\r\n");
return;
}
tp = chThdCreateFromHeap(NULL, TEST_WA_SIZE, chThdGetPriority(),
TestThread, chp);
if (tp == NULL) {
chprintf(chp, "out of memory\r\n");
return;
}
chThdWait(tp);
}
static void cmd_tree(BaseSequentialStream *chp, int argc, char *argv[]) {
FRESULT err;
uint32_t clusters;
FATFS *fsp;
(void)argv;
if (argc > 0) {
chprintf(chp, "Usage: tree\r\n");
return;
}
if (!fs_ready) {
chprintf(chp, "File System not mounted\r\n");
return;
}
err = f_getfree("/", &clusters, &fsp);
if (err != FR_OK) {
chprintf(chp, "FS: f_getfree() failed\r\n");
return;
}
chprintf(chp,
"FS: %lu free clusters, %lu sectors per cluster, %lu bytes free\r\n",
clusters, (uint32_t)SDC_FS.csize,
clusters * (uint32_t)SDC_FS.csize * (uint32_t)MMCSD_BLOCK_SIZE);
fbuff[0] = 0;
scan_files(chp, (char *)fbuff);
}
static const ShellCommand commands[] = {
{"mem", cmd_mem},
{"threads", cmd_threads},
{"test", cmd_test},
{"tree", cmd_tree},
{NULL, NULL}
};
static const ShellConfig shell_cfg1 = {
(BaseSequentialStream *)&SDU1,
commands
};
/*===========================================================================*/
/* Main and generic code. */
/*===========================================================================*/
/*
* Card insertion event.
*/
static void InsertHandler(eventid_t id) {
FRESULT err;
(void)id;
/*
* On insertion SDC initialization and FS mount.
*/
if (sdcConnect(&SDCD1))
return;
err = f_mount(0, &SDC_FS);
if (err != FR_OK) {
sdcDisconnect(&SDCD1);
return;
}
fs_ready = TRUE;
}
/*
* Card removal event.
*/
static void RemoveHandler(eventid_t id) {
(void)id;
sdcDisconnect(&SDCD1);
fs_ready = FALSE;
}
/*
* Green LED blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
chRegSetThreadName("blinker");
while (TRUE) {
palTogglePad(GPIOC, GPIOC_LED);
chThdSleepMilliseconds(fs_ready ? 125 : 500);
}
}
/*
* Application entry point.
*/
int main(void) {
static Thread *shelltp = NULL;
static const evhandler_t evhndl[] = {
InsertHandler,
RemoveHandler
};
struct EventListener el0, el1;
/*
* 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();
/*
* Activates the serial driver 6 and SDC driver 1 using default
* configuration.
*/
sdStart(&SD6, NULL);
sdcStart(&SDCD1, NULL);
/*
* Activates the card insertion monitor.
*/
tmr_init(&SDCD1);
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Creates the LWIP threads (it changes priority internally).
*/
chThdCreateStatic(wa_lwip_thread, LWIP_THREAD_STACK_SIZE, NORMALPRIO + 2,
lwip_thread, NULL);
/*
* Creates the HTTP thread (it changes priority internally).
*/
chThdCreateStatic(wa_http_server, sizeof(wa_http_server), NORMALPRIO + 1,
http_server, NULL);
/*
* Normal main() thread activity, in this demo it does nothing except
* sleeping in a loop and listen for events.
*/
chEvtRegister(&inserted_event, &el0, 0);
chEvtRegister(&removed_event, &el1, 1);
while (TRUE) {
if (!shelltp && (SDU1.config->usbp->state == USB_ACTIVE))
shelltp = shellCreate(&shell_cfg1, SHELL_WA_SIZE, NORMALPRIO);
else if (chThdTerminated(shelltp)) {
chThdRelease(shelltp); /* Recovers memory of the previous shell. */
shelltp = NULL; /* Triggers spawning of a new shell. */
}
if (palReadPad(GPIOA, GPIOA_BUTTON_WKUP) != 0) {
}
chEvtDispatch(evhndl, chEvtWaitOneTimeout(ALL_EVENTS, MS2ST(500)));
}
}