31 	uint8_t chip;  member
42 static int pca953x_ngpio(uint8_t chip)  in pca953x_ngpio()  argument
47 		if (pca953x_chip_ngpios[i].chip == chip)  in pca953x_ngpio()
53 static int pca953x_ngpio(uint8_t chip)  in pca953x_ngpio()  argument
62 static int pca953x_reg_write(uint8_t chip, uint addr, uint mask, uint data)  in pca953x_reg_write()  argument
67 	if (pca953x_ngpio(chip) <= 8) {  in pca953x_reg_write()
68 		if (i2c_read(chip, addr, 1, &valb, 1))  in pca953x_reg_write()
74 		return i2c_write(chip, addr, 1, &valb, 1);  in pca953x_reg_write()
76 		if (i2c_read(chip, addr << 1, 1, (u8*)&valw, 2))  in pca953x_reg_write()
84 		return i2c_write(chip, addr << 1, 1, (u8*)&valw, 2);  in pca953x_reg_write()
88 static int pca953x_reg_read(uint8_t chip, uint addr, uint *data)  in pca953x_reg_read()  argument
93 	if (pca953x_ngpio(chip) <= 8) {  in pca953x_reg_read()
94 		if (i2c_read(chip, addr, 1, &valb, 1))  in pca953x_reg_read()
98 		if (i2c_read(chip, addr << 1, 1, (u8*)&valw, 2))  in pca953x_reg_read()
109 int pca953x_set_val(uint8_t chip, uint mask, uint data)  in pca953x_set_val()  argument
111 	return pca953x_reg_write(chip, PCA953X_OUT, mask, data);  in pca953x_set_val()
118 int pca953x_set_pol(uint8_t chip, uint mask, uint data)  in pca953x_set_pol()  argument
120 	return pca953x_reg_write(chip, PCA953X_POL, mask, data);  in pca953x_set_pol()
127 int pca953x_set_dir(uint8_t chip, uint mask, uint data)  in pca953x_set_dir()  argument
129 	return pca953x_reg_write(chip, PCA953X_CONF, mask, data);  in pca953x_set_dir()
135 int pca953x_get_val(uint8_t chip)  in pca953x_get_val()  argument
139 	if (pca953x_reg_read(chip, PCA953X_IN, &val) < 0)  in pca953x_get_val()
149 static int pca953x_info(uint8_t chip)  in pca953x_info()  argument
153 	int nr_gpio = pca953x_ngpio(chip);  in pca953x_info()
156 	printf("pca953x@ 0x%x (%d pins):\n\n", chip, nr_gpio);  in pca953x_info()
165 	if (pca953x_reg_read(chip, PCA953X_CONF, &data) < 0)  in pca953x_info()
172 	if (pca953x_reg_read(chip, PCA953X_POL, &data) < 0)  in pca953x_info()
179 	if (pca953x_reg_read(chip, PCA953X_IN, &data) < 0)  in pca953x_info()
186 	if (pca953x_reg_read(chip, PCA953X_OUT, &data) < 0)  in pca953x_info()
206 	static uint8_t chip = CONFIG_SYS_I2C_PCA953X_ADDR;  in do_pca953x()  local
231 		ret = pca953x_info(chip);  in do_pca953x()
238 			chip = (uint8_t)ul_arg2;  in do_pca953x()
239 		printf("Current device address: 0x%x\n", chip);  in do_pca953x()
244 		ret = pca953x_set_dir(chip, (1 << ul_arg2),  in do_pca953x()
246 		val = (pca953x_get_val(chip) & (1 << ul_arg2)) != 0;  in do_pca953x()
251 			printf("chip 0x%02x, pin 0x%lx = %d\n", chip, ul_arg2,  in do_pca953x()
256 		ret = pca953x_set_dir(chip, (1 << ul_arg2),  in do_pca953x()
259 			ret = pca953x_set_val(chip, (1 << ul_arg2),  in do_pca953x()
266 		ret = pca953x_set_pol(chip, (1 << ul_arg2),  in do_pca953x()
274 		eprintf("Error talking to chip at 0x%x\n", chip);  in do_pca953x()