30 	uint8_t chip;  member
41 static int pca953x_ngpio(uint8_t chip)  in pca953x_ngpio()  argument
46 		if (pca953x_chip_ngpios[i].chip == chip)  in pca953x_ngpio()
52 static int pca953x_ngpio(uint8_t chip)  in pca953x_ngpio()  argument
61 static int pca953x_reg_write(uint8_t chip, uint addr, uint mask, uint data)  in pca953x_reg_write()  argument
66 	if (pca953x_ngpio(chip) <= 8) {  in pca953x_reg_write()
67 		if (i2c_read(chip, addr, 1, &valb, 1))  in pca953x_reg_write()
73 		return i2c_write(chip, addr, 1, &valb, 1);  in pca953x_reg_write()
75 		if (i2c_read(chip, addr << 1, 1, (u8*)&valw, 2))  in pca953x_reg_write()
83 		return i2c_write(chip, addr << 1, 1, (u8*)&valw, 2);  in pca953x_reg_write()
87 static int pca953x_reg_read(uint8_t chip, uint addr, uint *data)  in pca953x_reg_read()  argument
92 	if (pca953x_ngpio(chip) <= 8) {  in pca953x_reg_read()
93 		if (i2c_read(chip, addr, 1, &valb, 1))  in pca953x_reg_read()
97 		if (i2c_read(chip, addr << 1, 1, (u8*)&valw, 2))  in pca953x_reg_read()
108 int pca953x_set_val(uint8_t chip, uint mask, uint data)  in pca953x_set_val()  argument
110 	return pca953x_reg_write(chip, PCA953X_OUT, mask, data);  in pca953x_set_val()
117 int pca953x_set_pol(uint8_t chip, uint mask, uint data)  in pca953x_set_pol()  argument
119 	return pca953x_reg_write(chip, PCA953X_POL, mask, data);  in pca953x_set_pol()
126 int pca953x_set_dir(uint8_t chip, uint mask, uint data)  in pca953x_set_dir()  argument
128 	return pca953x_reg_write(chip, PCA953X_CONF, mask, data);  in pca953x_set_dir()
134 int pca953x_get_val(uint8_t chip)  in pca953x_get_val()  argument
138 	if (pca953x_reg_read(chip, PCA953X_IN, &val) < 0)  in pca953x_get_val()
148 static int pca953x_info(uint8_t chip)  in pca953x_info()  argument
152 	int nr_gpio = pca953x_ngpio(chip);  in pca953x_info()
155 	printf("pca953x@ 0x%x (%d pins):\n\n", chip, nr_gpio);  in pca953x_info()
164 	if (pca953x_reg_read(chip, PCA953X_CONF, &data) < 0)  in pca953x_info()
171 	if (pca953x_reg_read(chip, PCA953X_POL, &data) < 0)  in pca953x_info()
178 	if (pca953x_reg_read(chip, PCA953X_IN, &data) < 0)  in pca953x_info()
185 	if (pca953x_reg_read(chip, PCA953X_OUT, &data) < 0)  in pca953x_info()
205 	static uint8_t chip = CONFIG_SYS_I2C_PCA953X_ADDR;  in do_pca953x()  local
220 	/* arg2 used as chip number or pin number */  in do_pca953x()
230 		ret = pca953x_info(chip);  in do_pca953x()
237 			chip = (uint8_t)ul_arg2;  in do_pca953x()
238 		printf("Current device address: 0x%x\n", chip);  in do_pca953x()
243 		ret = pca953x_set_dir(chip, (1 << ul_arg2),  in do_pca953x()
245 		val = (pca953x_get_val(chip) & (1 << ul_arg2)) != 0;  in do_pca953x()
250 			printf("chip 0x%02x, pin 0x%lx = %d\n", chip, ul_arg2,  in do_pca953x()
255 		ret = pca953x_set_dir(chip, (1 << ul_arg2),  in do_pca953x()
258 			ret = pca953x_set_val(chip, (1 << ul_arg2),  in do_pca953x()
265 		ret = pca953x_set_pol(chip, (1 << ul_arg2),  in do_pca953x()
273 		eprintf("Error talking to chip at 0x%x\n", chip);  in do_pca953x()
284 	"	- display info for current chip\n"