diff options
author | tmk <nobody@nowhere> | 2012-06-07 02:25:15 +0900 |
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committer | tmk <nobody@nowhere> | 2012-06-07 02:47:33 +0900 |
commit | f4125707399d11a7d80587659c464b9bcddb8c56 (patch) | |
tree | 1d2a02e30f8cd103e8f4dc36629c09f6a3d44fef /protocol/pjrc/usb_extra.c | |
parent | 225de7a847a511d004bf909b1334e19497cf2f9d (diff) |
Moved files to common, protocol and doc directory
Diffstat (limited to 'protocol/pjrc/usb_extra.c')
-rw-r--r-- | protocol/pjrc/usb_extra.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/protocol/pjrc/usb_extra.c b/protocol/pjrc/usb_extra.c new file mode 100644 index 0000000000..fe1f422c0d --- /dev/null +++ b/protocol/pjrc/usb_extra.c @@ -0,0 +1,70 @@ +/* USB Keyboard Plus Debug Channel Example for Teensy USB Development Board + * http://www.pjrc.com/teensy/usb_keyboard.html + * Copyright (c) 2009 PJRC.COM, LLC + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include <util/delay.h> +#include <avr/interrupt.h> +#include "host.h" +#include "usb_extra.h" + + +int8_t usb_extra_send(uint8_t report_id, uint16_t data) +{ + uint8_t intr_state, timeout; + + if (!usb_configured()) return -1; + intr_state = SREG; + cli(); + UENUM = EXTRA_ENDPOINT; + timeout = UDFNUML + 50; + while (1) { + // are we ready to transmit? + if (UEINTX & (1<<RWAL)) break; + SREG = intr_state; + // has the USB gone offline? + if (!usb_configured()) return -1; + // have we waited too long? + if (UDFNUML == timeout) return -1; + // get ready to try checking again + intr_state = SREG; + cli(); + UENUM = EXTRA_ENDPOINT; + } + + UEDATX = report_id; + UEDATX = data&0xFF; + UEDATX = (data>>8)&0xFF; + + UEINTX = 0x3A; + SREG = intr_state; + return 0; +} + +int8_t usb_extra_consumer_send(uint16_t bits) +{ + return usb_extra_send(REPORT_ID_CONSUMER, bits); +} + +int8_t usb_extra_system_send(uint16_t bits) +{ + return usb_extra_send(REPORT_ID_SYSTEM, bits); +} |