static usbh_baseclassdriver_t *_load(usbh_device_t *dev, const uint8_t *descriptor, uint16_t rem) {
int i;
USBHCustomDriver *custp;
(void)dev;
if (_usbh_match_vid_pid(dev, 0xABCD, 0x0123) != HAL_SUCCESS)
return NULL;
const usbh_interface_descriptor_t * const ifdesc = (const usbh_interface_descriptor_t *)descriptor;
/* alloc driver */
for (i = 0; i < USBH_CUSTOM_CLASS_MAX_INSTANCES; i++) {
if (USBHCUSTOMD[i].dev == NULL) {
custp = &USBHCUSTOMD[i];
goto alloc_ok;
}
}
uwarn("Can't alloc CUSTOM driver");
/* can't alloc */
return NULL;
alloc_ok:
/* initialize the driver's variables */
custp->ifnum = ifdesc->bInterfaceNumber;
/* parse the configuration descriptor */
if_iterator_t iif;
generic_iterator_t iep;
iif.iad = 0;
iif.curr = descriptor;
iif.rem = rem;
for (ep_iter_init(&iep, &iif); iep.valid; ep_iter_next(&iep)) {
const usbh_endpoint_descriptor_t *const epdesc = ep_get(&iep);
if ((epdesc->bEndpointAddress & 0x80) && (epdesc->bmAttributes == USBH_EPTYPE_INT)) {
/* ... */
} else {
uinfof("unsupported endpoint found: bEndpointAddress=%02x, bmAttributes=%02x",
epdesc->bEndpointAddress, epdesc->bmAttributes);
}
}
custp->state = USBHCUSTOM_STATE_ACTIVE;
return (usbh_baseclassdriver_t *)custp;
}
static uint32_t _get_divisor(uint32_t baud, usbhftdi_type_t type) {
static const uint8_t divfrac[8] = {0, 3, 2, 4, 1, 5, 6, 7};
uint32_t divisor;
if (type == USBHFTDI_TYPE_A) {
uint32_t divisor3 = ((48000000UL / 2) + baud / 2) / baud;
uinfof("FTDI: desired=%dbps, real=%dbps", baud, (48000000UL / 2) / divisor3);
if ((divisor3 & 0x7) == 7)
divisor3++; /* round x.7/8 up to x+1 */
divisor = divisor3 >> 3;
divisor3 &= 0x7;
if (divisor3 == 1)
divisor |= 0xc000;
else if (divisor3 >= 4)
divisor |= 0x4000;
else if (divisor3 != 0)
divisor |= 0x8000;
else if (divisor == 1)
divisor = 0; /* special case for maximum baud rate */
} else {
static usbh_baseclassdriver_t *_ftdi_load(usbh_device_t *dev, const uint8_t *descriptor, uint16_t rem) {
int i;
USBHFTDIDriver *ftdip;
if (dev->devDesc.idVendor != 0x0403) {
uerr("FTDI: Unrecognized VID");
return NULL;
}
switch (dev->devDesc.idProduct) {
case 0x6001:
case 0x6010:
case 0x6011:
case 0x6014:
case 0x6015:
break;
default:
uerr("FTDI: Unrecognized PID");
return NULL;
}
if ((rem < descriptor[0]) || (descriptor[1] != USBH_DT_INTERFACE))
return NULL;
const usbh_interface_descriptor_t * const ifdesc = (const usbh_interface_descriptor_t * const)descriptor;
if (ifdesc->bInterfaceNumber != 0) {
uwarn("FTDI: Will allocate driver along with IF #0");
}
/* alloc driver */
for (i = 0; i < HAL_USBHFTDI_MAX_INSTANCES; i++) {
if (USBHFTDID[i].dev == NULL) {
ftdip = &USBHFTDID[i];
goto alloc_ok;
}
}
uwarn("FTDI: Can't alloc driver");
/* can't alloc */
return NULL;
alloc_ok:
/* initialize the driver's variables */
ftdip->ports = 0;
switch (dev->devDesc.bcdDevice) {
case 0x200: //AM
uinfo("FTDI: Type A chip");
ftdip->type = USBHFTDI_TYPE_A;
break;
case 0x400: //BM
case 0x500: //2232C
case 0x600: //R
case 0x1000: //230X
uinfo("FTDI: Type B chip");
ftdip->type = USBHFTDI_TYPE_B;
break;
case 0x700: //2232H;
case 0x800: //4232H;
case 0x900: //232H;
uinfo("FTDI: Type H chip");
ftdip->type = USBHFTDI_TYPE_H;
default:
uerr("FTDI: Unrecognized chip type");
return NULL;
}
usbhEPSetName(&dev->ctrl, "FTD[CTRL]");
/* parse the configuration descriptor */
generic_iterator_t iep, icfg;
if_iterator_t iif;
cfg_iter_init(&icfg, dev->fullConfigurationDescriptor, dev->basicConfigDesc.wTotalLength);
for (if_iter_init(&iif, &icfg); iif.valid; if_iter_next(&iif)) {
const usbh_interface_descriptor_t *const ifdesc = if_get(&iif);
uinfof("FTDI: Interface #%d", ifdesc->bInterfaceNumber);
USBHFTDIPortDriver *const prt = _find_port();
if (prt == NULL) {
uwarn("\tCan't alloc port for this interface");
break;
}
prt->ifnum = ifdesc->bInterfaceNumber;
prt->epin.status = USBH_EPSTATUS_UNINITIALIZED;
prt->epout.status = USBH_EPSTATUS_UNINITIALIZED;
for (ep_iter_init(&iep, &iif); iep.valid; ep_iter_next(&iep)) {
const usbh_endpoint_descriptor_t *const epdesc = ep_get(&iep);
if ((epdesc->bEndpointAddress & 0x80) && (epdesc->bmAttributes == USBH_EPTYPE_BULK)) {
uinfof("BULK IN endpoint found: bEndpointAddress=%02x", epdesc->bEndpointAddress);
usbhEPObjectInit(&prt->epin, dev, epdesc);
usbhEPSetName(&prt->epin, "FTD[BIN ]");
} else if (((epdesc->bEndpointAddress & 0x80) == 0)
&& (epdesc->bmAttributes == USBH_EPTYPE_BULK)) {
uinfof("BULK OUT endpoint found: bEndpointAddress=%02x", epdesc->bEndpointAddress);
usbhEPObjectInit(&prt->epout, dev, epdesc);
usbhEPSetName(&prt->epout, "FTD[BOUT]");
} else {
uinfof("unsupported endpoint found: bEndpointAddress=%02x, bmAttributes=%02x",
epdesc->bEndpointAddress, epdesc->bmAttributes);
}
}
if ((prt->epin.status != USBH_EPSTATUS_CLOSED)
|| (prt->epout.status != USBH_EPSTATUS_CLOSED)) {
uwarn("\tCouldn't find endpoints; can't alloc port for this interface");
continue;
}
/* link the new block driver to the list */
prt->next = ftdip->ports;
ftdip->ports = prt;
prt->ftdip = ftdip;
prt->state = USBHFTDIP_STATE_ACTIVE;
}
return (usbh_baseclassdriver_t *)ftdip;
}
static usbh_baseclassdriver_t *_msd_load(usbh_device_t *dev, const uint8_t *descriptor, uint16_t rem) {
int i;
USBHMassStorageDriver *msdp;
uint8_t luns;
usbh_urbstatus_t stat;
if (_usbh_match_descriptor(descriptor, rem, USBH_DT_INTERFACE,
0x08, 0x06, 0x50) != HAL_SUCCESS)
return NULL;
const usbh_interface_descriptor_t * const ifdesc = (const usbh_interface_descriptor_t *)descriptor;
if ((ifdesc->bAlternateSetting != 0)
|| (ifdesc->bNumEndpoints < 2)) {
return NULL;
}
/* alloc driver */
for (i = 0; i < HAL_USBHMSD_MAX_INSTANCES; i++) {
if (USBHMSD[i].dev == NULL) {
msdp = &USBHMSD[i];
goto alloc_ok;
}
}
uwarn("Can't alloc MSD driver");
/* can't alloc */
return NULL;
alloc_ok:
/* initialize the driver's variables */
msdp->epin.status = USBH_EPSTATUS_UNINITIALIZED;
msdp->epout.status = USBH_EPSTATUS_UNINITIALIZED;
msdp->max_lun = 0;
msdp->tag = 0;
msdp->luns = 0;
msdp->ifnum = ifdesc->bInterfaceNumber;
usbhEPSetName(&dev->ctrl, "MSD[CTRL]");
/* parse the configuration descriptor */
if_iterator_t iif;
generic_iterator_t iep;
iif.iad = 0;
iif.curr = descriptor;
iif.rem = rem;
for (ep_iter_init(&iep, &iif); iep.valid; ep_iter_next(&iep)) {
const usbh_endpoint_descriptor_t *const epdesc = ep_get(&iep);
if ((epdesc->bEndpointAddress & 0x80) && (epdesc->bmAttributes == USBH_EPTYPE_BULK)) {
uinfof("BULK IN endpoint found: bEndpointAddress=%02x", epdesc->bEndpointAddress);
usbhEPObjectInit(&msdp->epin, dev, epdesc);
usbhEPSetName(&msdp->epin, "MSD[BIN ]");
} else if (((epdesc->bEndpointAddress & 0x80) == 0)
&& (epdesc->bmAttributes == USBH_EPTYPE_BULK)) {
uinfof("BULK OUT endpoint found: bEndpointAddress=%02x", epdesc->bEndpointAddress);
usbhEPObjectInit(&msdp->epout, dev, epdesc);
usbhEPSetName(&msdp->epout, "MSD[BOUT]");
} else {
uinfof("unsupported endpoint found: bEndpointAddress=%02x, bmAttributes=%02x",
epdesc->bEndpointAddress, epdesc->bmAttributes);
}
}
if ((msdp->epin.status != USBH_EPSTATUS_CLOSED) || (msdp->epout.status != USBH_EPSTATUS_CLOSED)) {
goto deinit;
}
/* read the number of LUNs */
uinfo("Reading Max LUN:");
USBH_DEFINE_BUFFER(uint8_t buff[4]);
stat = usbhControlRequest(dev,
USBH_REQTYPE_CLASSIN(USBH_REQTYPE_RECIP_INTERFACE),
MSD_GET_MAX_LUN, 0, msdp->ifnum, 1, buff);
if (stat == USBH_URBSTATUS_OK) {
msdp->max_lun = buff[0] + 1;
uinfof("\tmax_lun = %d", msdp->max_lun);
if (msdp->max_lun > HAL_USBHMSD_MAX_LUNS) {
msdp->max_lun = HAL_USBHMSD_MAX_LUNS;
uwarnf("\tUsing max_lun = %d", msdp->max_lun);
}
} else if (stat == USBH_URBSTATUS_STALL) {
uwarn("\tStall, max_lun = 1");
msdp->max_lun = 1;
} else {
uerr("\tError");
goto deinit;
}
/* open the bulk IN/OUT endpoints */
usbhEPOpen(&msdp->epin);
usbhEPOpen(&msdp->epout);
/* Alloc one block device per logical unit found */
luns = msdp->max_lun;
for (i = 0; (luns > 0) && (i < HAL_USBHMSD_MAX_LUNS); i++) {
if (MSBLKD[i].msdp == NULL) {
/* link the new block driver to the list */
MSBLKD[i].next = msdp->luns;
msdp->luns = &MSBLKD[i];
MSBLKD[i].msdp = msdp;
MSBLKD[i].state = BLK_ACTIVE;
luns--;
}
}
return (usbh_baseclassdriver_t *)msdp;
deinit:
/* Here, the enpoints are closed, and the driver is unlinked */
return NULL;
}
bool usbhmsdLUNConnect(USBHMassStorageLUNDriver *lunp) {
osalDbgCheck(lunp != NULL);
osalDbgCheck(lunp->msdp != NULL);
msd_result_t res;
chSemWait(&lunp->sem);
osalDbgAssert((lunp->state == BLK_READY) || (lunp->state == BLK_ACTIVE), "invalid state");
if (lunp->state == BLK_READY) {
chSemSignal(&lunp->sem);
return HAL_SUCCESS;
}
lunp->state = BLK_CONNECTING;
{
USBH_DEFINE_BUFFER(scsi_inquiry_response_t inq);
uinfo("INQUIRY...");
res = scsi_inquiry(lunp, &inq);
if (res == MSD_RESULT_DISCONNECTED) {
goto failed;
} else if (res == MSD_RESULT_TRANSPORT_ERROR) {
//retry?
goto failed;
} else if (res == MSD_RESULT_FAILED) {
//retry?
goto failed;
}
uinfof("\tPDT=%02x", inq.peripheral & 0x1f);
if (inq.peripheral != 0) {
uerr("\tUnsupported PDT");
goto failed;
}
}
// Test if unit ready
uint8_t i;
for (i = 0; i < 10; i++) {
uinfo("TEST UNIT READY...");
res = scsi_testunitready(lunp);
if (res == MSD_RESULT_DISCONNECTED) {
goto failed;
} else if (res == MSD_RESULT_TRANSPORT_ERROR) {
//retry?
goto failed;
} else if (res == MSD_RESULT_FAILED) {
uinfo("\tTEST UNIT READY: Command Failed, retry");
osalThreadSleepMilliseconds(200);
continue;
}
uinfo("\tReady.");
break;
}
if (i == 10) goto failed;
{
USBH_DEFINE_BUFFER(scsi_readcapacity10_response_t cap);
// Read capacity
uinfo("READ CAPACITY(10)...");
res = scsi_readcapacity10(lunp, &cap);
if (res == MSD_RESULT_DISCONNECTED) {
goto failed;
} else if (res == MSD_RESULT_TRANSPORT_ERROR) {
//retry?
goto failed;
} else if (res == MSD_RESULT_FAILED) {
//retry?
goto failed;
}
lunp->info.blk_size = __REV(cap.block_size);
lunp->info.blk_num = __REV(cap.last_block_addr) + 1;
}
uinfof("\tBlock size=%dbytes, blocks=%u (~%u MB)", lunp->info.blk_size, lunp->info.blk_num,
(uint32_t)(((uint64_t)lunp->info.blk_size * lunp->info.blk_num) / (1024UL * 1024UL)));
uinfo("MSD Connected.");
lunp->state = BLK_READY;
chSemSignal(&lunp->sem);
return HAL_SUCCESS;
/* Connection failed, state reset to BLK_ACTIVE.*/
failed:
uinfo("MSD Connect failed.");
lunp->state = BLK_ACTIVE;
chSemSignal(&lunp->sem);
return HAL_FAILED;
}