113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _EMAC_DEV_H_
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#define _EMAC_DEV_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "esp_types.h"
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#include "soc/emac_reg_v2.h"
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#define EMAC_INTR_ENABLE_BIT (EMAC_DMAIN_TIE | EMAC_DMAIN_RIE | EMAC_DMAIN_RBUE | EMAC_DMAIN_NISE)
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struct dma_desc {
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uint32_t desc0;
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uint32_t desc1;
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uint32_t desc2;
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uint32_t desc3;
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};
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typedef struct dma_extended_desc {
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struct dma_desc basic;
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uint32_t desc4;
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uint32_t desc5;
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uint32_t desc6;
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uint32_t desc7;
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} dma_extended_desc_t;
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void emac_enable_clk(bool enable);
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esp_err_t emac_reset(void);
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void emac_set_gpio_pin_rmii(void);
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void emac_set_gpio_pin_mii(void);
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uint32_t emac_read_mac_version(void);
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void emac_dma_init(void);
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void emac_mac_init(void);
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void emac_enable_dma_tx(void);
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void emac_enable_dma_rx(void);
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void emac_disable_dma_tx(void);
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void emac_disable_dma_rx(void);
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void emac_enable_flowctrl(void);
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void emac_disable_flowctrl(void);
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void emac_mac_enable_txrx(void);
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static inline uint32_t emac_read_tx_cur_reg(void)
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{
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return REG_READ(EMAC_DMATXCURRDESC_REG);
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}
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static inline uint32_t emac_read_rx_cur_reg(void)
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{
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return REG_READ(EMAC_DMARXCURRDESC_REG);
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}
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static inline void emac_poll_tx_cmd(void)
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{
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//write any to wake up dma
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REG_WRITE(EMAC_DMATXPOLLDEMAND_REG, 1);
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}
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static inline void emac_poll_rx_cmd(void)
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{
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//write any to wake up dma
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REG_WRITE(EMAC_DMARXPOLLDEMAND_REG, 1);
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}
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static inline void emac_disable_rx_intr(void)
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{
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REG_CLR_BIT(EMAC_DMAIN_EN_REG, EMAC_DMAIN_RIE);
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}
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static inline void emac_enable_rx_intr(void)
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{
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REG_SET_BIT(EMAC_DMAIN_EN_REG, EMAC_DMAIN_RIE);
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}
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static inline void emac_disable_rx_unavail_intr(void)
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{
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REG_CLR_BIT(EMAC_DMAIN_EN_REG, EMAC_DMAIN_RBUE);
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}
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static inline void emac_enable_rx_unavail_intr(void)
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{
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REG_SET_BIT(EMAC_DMAIN_EN_REG, EMAC_DMAIN_RBUE);
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}
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static inline void IRAM_ATTR emac_send_pause_frame_enable(void)
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{
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REG_SET_BIT(EMAC_EX_PHYINF_CONF_REG, EMAC_EX_SBD_FLOWCTRL);
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}
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static inline void emac_send_pause_zero_frame_enable(void)
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{
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REG_CLR_BIT(EMAC_EX_PHYINF_CONF_REG, EMAC_EX_SBD_FLOWCTRL);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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