mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-02 01:54:29 +00:00
a24b7a8895
This commit adds the Synopsys source code for the arc ADC driver. Change-Id: I140a63505685cda8ec9d3174b7cf4fc1e2e91b06 Signed-off-by: Anas Nashif <anas.nashif@intel.com> Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/**
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* Synopsys DesignWare Sensor and Control IP Subsystem IO Software Driver and
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* documentation (hereinafter, "Software") is an Unsupported proprietary work
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* of Synopsys, Inc. unless otherwise expressly agreed to in writing between
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* Synopsys and you.
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*
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* The Software IS NOT an item of Licensed Software or Licensed Product under
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* any End User Software License Agreement or Agreement for Licensed Product
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* with Synopsys or any supplement thereto. You are permitted to use and
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* redistribute this Software in source and binary forms, with or without
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* modification, provided that redistributions of source code must retain this
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* notice. You may not view, use, disclose, copy or distribute this file or
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* any information contained herein except pursuant to this license grant from
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* Synopsys. If you do not agree with this notice, including the disclaimer
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* below, then you are not authorized to use the Software.
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*
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* THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#include <nanokernel.h>
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#include <stddef.h>
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#include <toolchain.h>
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#include "adc_dw.h"
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void adc_dw_rx_isr(struct device *dev)
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{
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struct adc_config *config;
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struct device_config *dev_config;
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struct adc_info *info;
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uint32_t adc_base;
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uint32_t i, reg_val, rx_cnt;
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uint32_t rd;
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uint32_t idx;
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dev_config = dev->config;
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config = dev_config->config_info;
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info = dev->driver_data;
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adc_base = config->reg_base;
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idx = info->index;
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if (config->seq_mode == IO_ADC_SEQ_MODE_REPETITIVE) {
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if (info->rx_buf[idx] == NULL) {
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goto cli;
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}
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rx_cnt = (config->fifo_tld + 1);
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} else {
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rx_cnt = info->seq_size;
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}
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if (rx_cnt > info->rx_len[idx]) {
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rx_cnt = info->rx_len[idx];
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}
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for (i = 0; i < rx_cnt; i++) {
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reg_val = sys_in32(adc_base + ADC_SET);
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sys_out32(reg_val|ADC_POP_SAMPLE, adc_base + ADC_SET);
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rd = sys_in32(adc_base + ADC_SAMPLE);
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info->rx_buf[idx][i] = rd;
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}
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info->rx_buf[idx] += i;
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info->rx_len[idx] -= i;
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if (info->rx_len[idx] == 0) {
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if (likely(info->cb != NULL)) {
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info->cb(dev, ADC_CB_DONE);
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}
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if (config->seq_mode == IO_ADC_SEQ_MODE_SINGLESHOT) {
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sys_out32(RESUME_ADC_CAPTURE, adc_base + ADC_CTRL);
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reg_val = sys_in32(adc_base + ADC_SET);
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sys_out32(reg_val | ADC_FLUSH_RX, adc_base + ADC_SET);
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info->state = ADC_STATE_IDLE;
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goto cli;
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}
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info->rx_buf[idx] = NULL;
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idx++;
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idx %= BUFS_NUM;
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info->index = idx;
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} else if (config->seq_mode == IO_ADC_SEQ_MODE_SINGLESHOT) {
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sys_out32(RESUME_ADC_CAPTURE, adc_base + ADC_CTRL);
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info->state = ADC_STATE_IDLE;
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if (likely(info->cb != NULL)) {
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info->cb(dev, ADC_CB_DONE);
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}
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}
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cli:
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reg_val = sys_in32(adc_base + ADC_CTRL);
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sys_out32(reg_val | ADC_CLR_DATA_A, adc_base + ADC_CTRL);
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}
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void adc_dw_err_isr(struct device *dev)
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{
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struct adc_config *config = dev->config->config_info;
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struct adc_info *info = dev->driver_data;
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uint32_t adc_base = config->reg_base;
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uint32_t reg_val = sys_in32(adc_base + ADC_SET);
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sys_out32(RESUME_ADC_CAPTURE, adc_base + ADC_CTRL);
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sys_out32(reg_val | ADC_FLUSH_RX, adc_base + ADC_CTRL);
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info->state = ADC_STATE_IDLE;
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sys_out32(FLUSH_ADC_ERRORS, adc_base + ADC_CTRL);
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if (likely(info->cb != NULL)) {
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info->cb(dev, ADC_CB_ERROR);
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}
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}
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