59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/***************************************************************************
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*
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* Copyright 2015-2020 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#include "plat_addr_map.h"
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#ifdef I2C_SLAVE_BASE
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#include "hal_slave_i2c.h"
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#include "reg_slave_i2c.h"
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static struct SLAVE_I2C_T *const slave_i2c =
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(struct SLAVE_I2C_T *)I2C_SLAVE_BASE;
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void hal_slave_i2c_enable(void) { slave_i2c->EN |= I2C_EN; }
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void hal_slave_i2c_disable(void) { slave_i2c->EN &= ~I2C_EN; }
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uint32_t hal_slave_i2c_get_filter_len(void) {
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return GET_BITFIELD(slave_i2c->EN, R_FILTERLEN);
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}
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int hal_slave_i2c_set_filter_len(uint32_t len) {
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if (len > (W_FILTERLEN_MASK >> W_FILTERLEN_SHIFT)) {
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return 1;
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}
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slave_i2c->EN = SET_BITFIELD(slave_i2c->EN, W_FILTERLEN, len);
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return 0;
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}
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uint32_t hal_slave_i2c_get_dev_id(void) {
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return GET_BITFIELD(slave_i2c->ID, DEV_ID);
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}
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int hal_slave_i2c_set_dev_id(uint32_t dev_id) {
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if (dev_id > 0x7F) {
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return 1;
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}
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slave_i2c->ID = SET_BITFIELD(slave_i2c->ID, DEV_ID, dev_id);
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return 0;
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}
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void hal_slave_i2c_bypass_timeout(void) { slave_i2c->TBP |= TIMEOUT_BYPASS; }
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void hal_slave_i2c_restore_timeout(void) { slave_i2c->TBP &= ~TIMEOUT_BYPASS; }
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#endif
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