diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2017-08-02 14:09:13 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2017-08-02 14:19:10 +0900 |
| commit | a4f28ee17680742b0b0055f68b7a0741ccb17d6b (patch) | |
| tree | 13f83854e641e6884d6faad1299b088cd044ee5f | |
| parent | 87767f1be5d8d4adac8d23a285250299eccee3fb (diff) | |
Add adc-gnu-linux driver.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | contrib/adc-gnu-linux.c | 77 |
2 files changed, 81 insertions, 0 deletions
@@ -1,3 +1,7 @@ +2017-08-02 NIIBE Yutaka <gniibe@fsij.org> + + * contrib/adc-gnu-linux.c: New. + 2017-07-07 NIIBE Yutaka <gniibe@fsij.org> * mcu/usb-usbip.c (usbip_handle_data_urb): Fix error return value. diff --git a/contrib/adc-gnu-linux.c b/contrib/adc-gnu-linux.c new file mode 100644 index 0000000..e71d7f9 --- /dev/null +++ b/contrib/adc-gnu-linux.c @@ -0,0 +1,77 @@ +/* + * adc-gnu-linux.c - ADC driver for GNU/Linux emulation. + * This ADC driver just fills pseudo random values. + * It's completely useless other than for NeuG. + * + * Copyright (C) 2017 Free Software Initiative of Japan + * Author: NIIBE Yutaka <gniibe@fsij.org> + * + * This file is a part of Chopstx, a thread library for embedded. + * + * Chopstx 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. + * + * Chopstx 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/>. + * + * As additional permission under GNU GPL version 3 section 7, you may + * distribute non-source form of the Program without the copy of the + * GNU GPL normally required by section 4, provided you inform the + * receipents of GNU GPL by a written offer. + * + */ + +#include <stdint.h> +#include <stdlib.h> +#include <chopstx.h> +#include "adc.h" + +#define ADC_RANDOM_SEED 0x01034649 /* "Hello, father!" in Japanese */ + +/* + * Do calibration for ADC. + */ +int +adc_init (void) +{ + srandom (ADC_RANDOM_SEED); + return 0; +} + +void +adc_start (void) +{ +} + +uint32_t adc_buf[64]; + +void +adc_start_conversion (int offset, int count) +{ + while (count--) + adc_buf[offset++] = random (); +} + + +void +adc_stop (void) +{ +} + + +/* + * Return 0 on success. + * Return 1 on error. + */ +int +adc_wait_completion (void) +{ + return 0; +} |