Lines Matching +full:i2c +full:- +full:scl +full:- +full:hz

4  * SPDX-License-Identifier: Apache-2.0
11  * @brief Driver for ARM's SBCon 2-wire serial bus interface
14  * hardware state of two-bit serial interfaces like I2C.
19 #include <zephyr/drivers/i2c.h>
24 #include "i2c-priv.h"
36 /* Bits values for SCL and SDA lines in struct sbcon registers */
37 #define SCL BIT(0)  macro
43 	uint32_t bitrate;		/* I2C bus speed in Hz */
48 	struct i2c_bitbang bitbang;	/* Bit-bang library data */
56 		sbcon->SB_CONTROLS = SCL;  in i2c_sbcon_set_scl()
58 		sbcon->SB_CONTROLC = SCL;  in i2c_sbcon_set_scl()
67 		sbcon->SB_CONTROLS = SDA;  in i2c_sbcon_set_sda()
69 		sbcon->SB_CONTROLC = SDA;  in i2c_sbcon_set_sda()
77 	return sbcon->SB_CONTROL & SDA;  in i2c_sbcon_get_sda()
88 	struct i2c_sbcon_context *context = dev->data;  in i2c_sbcon_configure()
90 	return i2c_bitbang_configure(&context->bitbang, dev_config);  in i2c_sbcon_configure()
95 	struct i2c_sbcon_context *context = dev->data;  in i2c_sbcon_get_config()
97 	return i2c_bitbang_get_config(&context->bitbang, config);  in i2c_sbcon_get_config()
103 	struct i2c_sbcon_context *context = dev->data;  in i2c_sbcon_transfer()
105 	return i2c_bitbang_transfer(&context->bitbang, msgs, num_msgs,  in i2c_sbcon_transfer()
111 	struct i2c_sbcon_context *context = dev->data;  in i2c_sbcon_recover_bus()
113 	return i2c_bitbang_recover_bus(&context->bitbang);  in i2c_sbcon_recover_bus()
116 static DEVICE_API(i2c, api) = {
128 	struct i2c_sbcon_context *context = dev->data;  in i2c_sbcon_init()
129 	const struct i2c_sbcon_config *config = dev->config;  in i2c_sbcon_init()
132 	i2c_bitbang_init(&context->bitbang, &io_fns, config->sbcon);  in i2c_sbcon_init()
134 	ret = i2c_bitbang_configure(&context->bitbang,  in i2c_sbcon_init()
135 				    I2C_MODE_CONTROLLER | i2c_map_dt_bitrate(config->bitrate));  in i2c_sbcon_init()
137 		LOG_ERR("failed to configure I2C bitbang: %d", ret);  in i2c_sbcon_init()