5  * SPDX-License-Identifier: Apache-2.0
18  * suitable flags, i.e. the SDA pin as open-collector/open-drain with a pull-up
37 #include "i2c-priv.h"
44 	uint32_t bitrate;  member
47 /* Driver instance data */
49 	struct i2c_bitbang bitbang;	/* Bit-bang library data */
57 	gpio_pin_set_dt(&config->scl_gpio, state);  in i2c_gpio_set_scl()
64 	gpio_pin_set_dt(&config->sda_gpio, state);  in i2c_gpio_set_sda()
70 	int rc = gpio_pin_get_dt(&config->sda_gpio);  in i2c_gpio_get_sda()
84 	struct i2c_gpio_context *context = dev->data;  in i2c_gpio_configure()
87 	k_mutex_lock(&context->mutex, K_FOREVER);  in i2c_gpio_configure()
89 	rc = i2c_bitbang_configure(&context->bitbang, dev_config);  in i2c_gpio_configure()
91 	k_mutex_unlock(&context->mutex);  in i2c_gpio_configure()
98 	struct i2c_gpio_context *context = dev->data;  in i2c_gpio_get_config()
101 	k_mutex_lock(&context->mutex, K_FOREVER);  in i2c_gpio_get_config()
103 	rc = i2c_bitbang_get_config(&context->bitbang, config);  in i2c_gpio_get_config()
108 	k_mutex_unlock(&context->mutex);  in i2c_gpio_get_config()
116 	struct i2c_gpio_context *context = dev->data;  in i2c_gpio_transfer()
119 	k_mutex_lock(&context->mutex, K_FOREVER);  in i2c_gpio_transfer()
121 	rc = i2c_bitbang_transfer(&context->bitbang, msgs, num_msgs,  in i2c_gpio_transfer()
124 	k_mutex_unlock(&context->mutex);  in i2c_gpio_transfer()
131 	struct i2c_gpio_context *context = dev->data;  in i2c_gpio_recover_bus()
134 	k_mutex_lock(&context->mutex, K_FOREVER);  in i2c_gpio_recover_bus()
136 	rc = i2c_bitbang_recover_bus(&context->bitbang);  in i2c_gpio_recover_bus()
138 	k_mutex_unlock(&context->mutex);  in i2c_gpio_recover_bus()
155 	struct i2c_gpio_context *context = dev->data;  in i2c_gpio_init()
156 	const struct i2c_gpio_config *config = dev->config;  in i2c_gpio_init()
160 	if (!gpio_is_ready_dt(&config->scl_gpio)) {  in i2c_gpio_init()
162 		return -ENODEV;  in i2c_gpio_init()
165 	err = gpio_pin_configure_dt(&config->scl_gpio, GPIO_OUTPUT_HIGH);  in i2c_gpio_init()
171 	if (!gpio_is_ready_dt(&config->sda_gpio)) {  in i2c_gpio_init()
173 		return -ENODEV;  in i2c_gpio_init()
176 	err = gpio_pin_configure_dt(&config->sda_gpio,  in i2c_gpio_init()
178 	if (err == -ENOTSUP) {  in i2c_gpio_init()
179 		err = gpio_pin_configure_dt(&config->sda_gpio,  in i2c_gpio_init()
187 	i2c_bitbang_init(&context->bitbang, &io_fns, (void *)config);  in i2c_gpio_init()
189 	bitrate_cfg = i2c_map_dt_bitrate(config->bitrate);  in i2c_gpio_init()
190 	err = i2c_bitbang_configure(&context->bitbang,  in i2c_gpio_init()
197 	err = k_mutex_init(&context->mutex);  in i2c_gpio_init()
213 	.bitrate	= DT_INST_PROP(_num, clock_frequency),		\