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Adding CCID driver

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2021-12-31 02:17:09 +01:00
parent c8a2912616
commit 0e67eaf659
3 changed files with 118 additions and 33 deletions
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82
hsm2040.c
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@@ -15,10 +15,92 @@
#include "bsp/board.h"
#include "tusb.h"
#include "usb_descriptors.h"
#include "device/usbd_pvt.h"
// Device descriptors
#include "hsm2040.h"
static uint8_t itf_num;
static void ccid_init(void) {
}
static void ccid_reset(uint8_t __unused rhport) {
itf_num = 0;
}
static uint16_t ccid_open(uint8_t __unused rhport, tusb_desc_interface_t const *itf_desc, uint16_t max_len) {
TU_VERIFY(itf_desc->bInterfaceClass == TUSB_CLASS_SMART_CARD && itf_desc->bInterfaceSubClass == 0 && itf_desc->bInterfaceProtocol == 0, 0);
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + sizeof(class_desc_ccid_t) + 2*sizeof(tusb_desc_endpoint_t);
TU_VERIFY(max_len >= drv_len, 0);
itf_num = itf_desc->bInterfaceNumber;
return drv_len;
}
// Support for parameterized reset via vendor interface control request
static bool ccid_control_xfer_cb(uint8_t __unused rhport, uint8_t stage, tusb_control_request_t const * request) {
// nothing to do with DATA & ACK stage
if (stage != CONTROL_STAGE_SETUP) return true;
if (request->wIndex == itf_num)
{
TU_LOG2("-------- bmRequestType %x, bRequest %x, wValue %x, wLength %x\r\n",request->bmRequestType,request->bRequest, request->wValue, request->wLength);
/*
#if PICO_STDIO_USB_RESET_INTERFACE_SUPPORT_RESET_TO_BOOTSEL
if (request->bRequest == RESET_REQUEST_BOOTSEL) {
#ifdef PICO_STDIO_USB_RESET_BOOTSEL_ACTIVITY_LED
uint gpio_mask = 1u << PICO_STDIO_USB_RESET_BOOTSEL_ACTIVITY_LED;
#else
uint gpio_mask = 0u;
#endif
#if !PICO_STDIO_USB_RESET_BOOTSEL_FIXED_ACTIVITY_LED
if (request->wValue & 0x100) {
gpio_mask = 1u << (request->wValue >> 9u);
}
#endif
reset_usb_boot(gpio_mask, (request->wValue & 0x7f) | PICO_STDIO_USB_RESET_BOOTSEL_INTERFACE_DISABLE_MASK);
// does not return, otherwise we'd return true
}
#endif
#if PICO_STDIO_USB_RESET_INTERFACE_SUPPORT_RESET_TO_FLASH_BOOT
if (request->bRequest == RESET_REQUEST_FLASH) {
watchdog_reboot(0, 0, PICO_STDIO_USB_RESET_RESET_TO_FLASH_DELAY_MS);
return true;
}
#endif
*/
return true;
}
return false;
}
static bool ccid_xfer_cb(uint8_t __unused rhport, uint8_t __unused ep_addr, xfer_result_t __unused result, uint32_t __unused xferred_bytes) {
return true;
}
static usbd_class_driver_t const ccid_driver =
{
#if CFG_TUSB_DEBUG >= 2
.name = "CCID",
#endif
.init = ccid_init,
.reset = ccid_reset,
.open = ccid_open,
.control_xfer_cb = ccid_control_xfer_cb,
.xfer_cb = ccid_xfer_cb,
.sof = NULL
};
// Implement callback to add our custom driver
usbd_class_driver_t const *usbd_app_driver_get_cb(uint8_t *driver_count) {
*driver_count = 1;
return &ccid_driver;
}
enum {
BLINK_NOT_MOUNTED = 250,
BLINK_MOUNTED = 1000,