1 files changed, 82 insertions, 0 deletions
diff --git a/emb/pastilda/usb/usb_host/usbh_host.cpp b/emb/pastilda/usb/usb_host/usbh_host.cpp
new file mode 100644
index 0000000..4a8f559
--- /dev/null
+++ b/emb/pastilda/usb/usb_host/usbh_host.cpp
@@ -0,0 +1,82 @@
+/*
+ * This file is part of the pastilda project.
+ * hosted at http://github.com/thirdpin/pastilda
+ *
+ * Copyright (C) 2016  Third Pin LLC
+ * Written by Anastasiia Lazareva <a.lazareva@thirdpin.ru>
+ *
+ * This program 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.
+ *
+ * This program 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include <usb/usb_host/usbh_host.h>
+
+constexpr hid_kbd_config_t USB_host::kbd_config;
+constexpr usbh_dev_driver_t* USB_host::device_drivers[];
+
+USB_host *usb_host_pointer;
+USB_host::USB_host(redirect _redirect_callback, control_interception _control_interception_callback)
+{
+	usb_host_pointer = this;
+	redirect_callback = _redirect_callback;
+	control_interception_callback = _control_interception_callback;
+
+	timer_setup();
+	oth_hs_setup();
+
+	hid_kbd_driver_init(&kbd_config);
+	usbh_init(usbh_lld_stm32f4_drivers, device_drivers);
+}
+
+void USB_host::poll()
+{
+	usbh_poll(get_time_us());
+	delay_ms(1);
+}
+
+void USB_host::kbd_in_message_handler(uint8_t data_len, const uint8_t *data)
+{
+	if ((data[0] == 0x03) && data[2] == 0x35) {
+		control_interception_callback();
+	}
+	else {
+		redirect_callback((uint8_t*)data, data_len);
+	}
+}
+
+void USB_host::timer_setup()
+{
+	_timer = new TIMER_ext(USB_HOST_TIMER_NUMBER);
+	_timer->set_prescaler_value(USB_HOST_TIMER_PRESCALER);
+	_timer->set_autoreload_value(USB_HOST_TIMER_PERIOD);
+	_timer->enable_counter();
+}
+
+void USB_host::oth_hs_setup()
+{
+	GPIO_ext uf_p(PB15);
+	GPIO_ext uf_m(PB14);
+
+	uf_p.mode_setup(Mode::ALTERNATE_FUNCTION, PullMode::NO_PULL);
+	uf_m.mode_setup(Mode::ALTERNATE_FUNCTION, PullMode::NO_PULL);
+
+	uf_p.set_af(AF_Number::AF12);
+	uf_m.set_af(AF_Number::AF12);
+}
+
+//convert to 1MHz less precise timer value
+//units: microseconds
+uint32_t USB_host::get_time_us()
+{
+	return ((_timer->get_counter_value()) * 100);
+}