xref: /openbmc/linux/sound/soc/codecs/rt5514-spi.h (revision d2912cb1)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * rt5514-spi.h  --  RT5514 driver
4  *
5  * Copyright 2015 Realtek Semiconductor Corp.
6  * Author: Oder Chiou <oder_chiou@realtek.com>
7  */
8 
9 #ifndef __RT5514_SPI_H__
10 #define __RT5514_SPI_H__
11 
12 /**
13  * RT5514_SPI_BUF_LEN is the buffer size of SPI master controller.
14 */
15 #define RT5514_SPI_BUF_LEN		240
16 
17 #define RT5514_BUFFER_VOICE_BASE	0x18000200
18 #define RT5514_BUFFER_VOICE_LIMIT	0x18000204
19 #define RT5514_BUFFER_VOICE_WP		0x1800020c
20 #define RT5514_IRQ_CTRL			0x18002094
21 
22 #define RT5514_IRQ_STATUS_BIT		(0x1 << 5)
23 
24 /* SPI Command */
25 enum {
26 	RT5514_SPI_CMD_16_READ = 0,
27 	RT5514_SPI_CMD_16_WRITE,
28 	RT5514_SPI_CMD_32_READ,
29 	RT5514_SPI_CMD_32_WRITE,
30 	RT5514_SPI_CMD_BURST_READ,
31 	RT5514_SPI_CMD_BURST_WRITE,
32 };
33 
34 int rt5514_spi_burst_read(unsigned int addr, u8 *rxbuf, size_t len);
35 int rt5514_spi_burst_write(u32 addr, const u8 *txbuf, size_t len);
36 
37 #endif /* __RT5514_SPI_H__ */
38