mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-14 18:24:34 -05:00
111 lines
3.4 KiB
C
111 lines
3.4 KiB
C
/*
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* Copyright (C) 2023 Bernd Herzog
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* Copyright (C) 2024 HTotoo
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "i2c_device_to_host.h"
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#include "i2cdevmanager_c_api.h"
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#include <string.h>
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I2CShellDriver I2CD1;
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// pp to i2c data tx
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static void onotifyi2c(GenericQueue* qp) {
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I2CShellDriver* sdp = chQGetLink(qp);
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uint8_t buff[I2CSHELL_BUFFERS_SIZE];
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int n = chOQGetFullI(&sdp->oqueue);
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if (n > I2CSHELL_BUFFERS_SIZE) n = I2CSHELL_BUFFERS_SIZE; // don't overflow
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if (n > 0) {
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for (int i = 0; i < n; i++) {
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buff[i] = chOQGetI(&sdp->oqueue);
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}
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int ret;
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chSysUnlock();
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do {
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ret = oNofityI2cFromShell(&buff[0], n); // i2c_write
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if (ret == -1)
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chThdSleepMilliseconds(1);
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} while (ret == -1);
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chSysLock();
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}
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}
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static size_t write(void* ip, const uint8_t* bp, size_t n) {
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return chOQWriteTimeout(&((I2CShellDriver*)ip)->oqueue, bp,
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n, TIME_INFINITE);
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}
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static size_t read(void* ip, uint8_t* bp, size_t n) {
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return chIQReadTimeout(&((I2CShellDriver*)ip)->iqueue, bp,
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n, TIME_INFINITE);
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}
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static msg_t put(void* ip, uint8_t b) {
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return chOQPutTimeout(&((I2CShellDriver*)ip)->oqueue, b, TIME_INFINITE);
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}
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static msg_t get(void* ip) {
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return chIQGetTimeout(&((I2CShellDriver*)ip)->iqueue, TIME_INFINITE);
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}
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static msg_t putt(void* ip, uint8_t b, systime_t timeout) {
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return chOQPutTimeout(&((I2CShellDriver*)ip)->oqueue, b, timeout);
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}
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static msg_t gett(void* ip, systime_t timeout) {
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return chIQGetTimeout(&((I2CShellDriver*)ip)->iqueue, timeout);
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}
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static size_t writet(void* ip, const uint8_t* bp, size_t n, systime_t time) {
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return chOQWriteTimeout(&((I2CShellDriver*)ip)->oqueue, bp, n, time);
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}
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static size_t readt(void* ip, uint8_t* bp, size_t n, systime_t time) {
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return chIQReadTimeout(&((I2CShellDriver*)ip)->iqueue, bp, n, time);
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}
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static const struct I2CShellDriverVMT vmt = {
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write, read, put, get,
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putt, gett, writet, readt};
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void init_i2c_shell_driver(I2CShellDriver* sdp) {
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sdp->vmt = &vmt;
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chIQInit(&sdp->iqueue, sdp->ib, I2CSHELL_BUFFERS_SIZE, NULL, sdp);
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chOQInit(&sdp->oqueue, sdp->ob, I2CSHELL_BUFFERS_SIZE, onotifyi2c, sdp);
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}
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// i2c->pp data rx
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void complete_i2chost_to_device_transfer(uint8_t* data, size_t length) {
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chSysLock();
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for (unsigned int i = 0; i < length; i++) {
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msg_t ret;
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do {
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ret = chIQPutI(&I2CD1.iqueue, data[i]);
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if (ret == Q_FULL) {
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chSysUnlock();
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chThdSleepMilliseconds(1); // wait for shell thread when buffer is full
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chSysLock();
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}
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} while (ret == Q_FULL);
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}
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chSysUnlock();
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}
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