tools/spi/spidev_test.c

39 static uint32_t mode;
133 	if (mode & SPI_TX_OCTAL)
135 	else if (mode & SPI_TX_QUAD)
137 	else if (mode & SPI_TX_DUAL)
139 	if (mode & SPI_RX_OCTAL)
141 	else if (mode & SPI_RX_QUAD)
143 	else if (mode & SPI_RX_DUAL)
145 	if (!(mode & SPI_LOOP)) {
146 		if (mode & (SPI_TX_OCTAL | SPI_TX_QUAD | SPI_TX_DUAL))
148 		else if (mode & (SPI_RX_OCTAL | SPI_RX_QUAD | SPI_RX_DUAL))
184 		 "spi mode:\n"
273 			mode |= SPI_LOOP;
276 			mode |= SPI_CPHA;
279 			mode |= SPI_CPOL;
282 			mode |= SPI_LSB_FIRST;
285 			mode |= SPI_CS_HIGH;
288 			mode |= SPI_3WIRE;
291 			mode |= SPI_3WIRE_HIZ;
294 			mode |= SPI_RX_CPHA_FLIP;
297 			mode |= SPI_MOSI_IDLE_LOW;
300 			mode |= SPI_NO_CS;
306 			mode |= SPI_READY;
312 			mode |= SPI_TX_DUAL;
315 			mode |= SPI_TX_QUAD;
318 			mode |= SPI_TX_OCTAL;
330 	if (mode & SPI_LOOP) {
331 		if (mode & SPI_TX_DUAL)
332 			mode |= SPI_RX_DUAL;
333 		if (mode & SPI_TX_QUAD)
334 			mode |= SPI_RX_QUAD;
335 		if (mode & SPI_TX_OCTAL)
336 			mode |= SPI_RX_OCTAL;
431 	if (mode & SPI_LOOP) {
460 	 * spi mode
462 	/* WR is make a request to assign 'mode' */
463 	request = mode;
464 	ret = ioctl(fd, SPI_IOC_WR_MODE32, &mode);
466 		pabort("can't set spi mode");
468 	/* RD is read what mode the device actually is in */
469 	ret = ioctl(fd, SPI_IOC_RD_MODE32, &mode);
471 		pabort("can't get spi mode");
472 	/* Drivers can reject some mode bits without returning an error.
473 	 * Read the current value to identify what mode it is in, and if it
474 	 * differs from the requested mode, warn the user.
476 	if (request != mode)
477 		printf("WARNING device does not support requested mode 0x%x\n",
502 	printf("spi mode: 0x%x\n", mode);