diff options
Diffstat (limited to 'libmaple/i2c.c')
| -rw-r--r-- | libmaple/i2c.c | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/libmaple/i2c.c b/libmaple/i2c.c index 5fbafad..3a1082a 100644 --- a/libmaple/i2c.c +++ b/libmaple/i2c.c @@ -1,29 +1,32 @@ -/* ***************************************************************************** +/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. * - * 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 + * 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 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. - * ****************************************************************************/ + * 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. + *****************************************************************************/ /** - * @brief + * @file i2c.c + * @brief Inter-Integrated Circuit (I2C) support. */ #include "libmaple.h" @@ -150,8 +153,9 @@ static void i2c_irq_handler(i2c_dev *dev) { } } else { /* - * Master transmitter: write first byte to fill shift register. - * We should get another TXE interrupt immediately to fill DR again. + * Master transmitter: write first byte to fill shift + * register. We should get another TXE interrupt + * immediately to fill DR again. */ if (msg->length != 1) i2c_write(dev, msg->data[msg->xferred++]); @@ -206,9 +210,10 @@ static void i2c_irq_handler(i2c_dev *dev) { i2c_stop_condition(dev); /* - * Turn off event interrupts to keep BTF from firing until the end - * of the stop condition. Why on earth they didn't have a start/stop - * condition request clear BTF is beyond me. + * Turn off event interrupts to keep BTF from firing until + * the end of the stop condition. Why on earth they didn't + * have a start/stop condition request clear BTF is beyond + * me. */ i2c_disable_irq(dev, I2C_IRQ_EVENT); leave_big_crumb(STOP_SENT, 0, 0); @@ -395,7 +400,6 @@ void i2c_master_enable(i2c_dev *dev, uint32 flags) { i2c_peripheral_enable(dev); } - int32 i2c_master_xfer(i2c_dev *dev, i2c_msg *msgs, uint16 num) { int32 rc; @@ -431,8 +435,3 @@ static inline int32 wait_for_state_change(i2c_dev *dev, i2c_state state) { } } } - - - - - |