diff options
Diffstat (limited to 'xorg-server/hw/xfree86/i2c/xf86i2c.c')
| -rw-r--r-- | xorg-server/hw/xfree86/i2c/xf86i2c.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/xorg-server/hw/xfree86/i2c/xf86i2c.c b/xorg-server/hw/xfree86/i2c/xf86i2c.c index 2d261d4ce..cf2cd0971 100644 --- a/xorg-server/hw/xfree86/i2c/xf86i2c.c +++ b/xorg-server/hw/xfree86/i2c/xf86i2c.c @@ -1,7 +1,7 @@ /* * Copyright (C) 1998 Itai Nahshon, Michael Schimek * - * The original code was derived from and inspired by + * The original code was derived from and inspired by * the I2C driver from the Linux kernel. * (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de> */ @@ -52,7 +52,7 @@ I2CUDelay(I2CBusPtr b, int usec) if (usec > 0) { X_GETTIMEOFDAY(&begin); do { - /* It would be nice to use {xf86}usleep, + /* It would be nice to use {xf86}usleep, * but usleep (1) takes >10000 usec ! */ X_GETTIMEOFDAY(&cur); @@ -74,7 +74,7 @@ I2CUDelay(I2CBusPtr b, int usec) #define RISEFALLTIME 2 /* usec, actually 300 to 1000 ns according to the i2c specs */ -/* Some devices will hold SCL low to slow down the bus or until +/* Some devices will hold SCL low to slow down the bus or until * ready for transmission. * * This condition will be noticed when the master tries to raise @@ -206,7 +206,7 @@ I2CReadBit(I2CBusPtr b, int *psda, int timeout) /* This is the default I2CPutByte function if not supplied by the driver. * * A single byte is sent to the device. - * The function returns FALSE if a timeout occurs, you should send + * The function returns FALSE if a timeout occurs, you should send * a stop condition afterwards to reset the bus. * * A timeout occurs, @@ -267,7 +267,7 @@ I2CPutByte(I2CDevPtr d, I2CByte data) * A single byte is read from the device. * The function returns FALSE if a timeout occurs, you should send * a stop condition afterwards to reset the bus. - * + * * A timeout occurs, * if the slave pulls SCL to slow down the bus more than ByteTimeout usecs, * or slows down the bus for more than b->BitTimeout usecs for each bit. @@ -275,7 +275,7 @@ I2CPutByte(I2CDevPtr d, I2CByte data) * ByteTimeout must be at least b->HoldTime, the other timeouts can be * zero according to the comment on I2CRaiseSCL. * - * For the <last> byte in a sequence the acknowledge bit NACK (1), + * For the <last> byte in a sequence the acknowledge bit NACK (1), * otherwise ACK (0) will be sent. */ @@ -311,11 +311,11 @@ I2CGetByte(I2CDevPtr d, I2CByte * data, Bool last) * * It creates the start condition, followed by the d->SlaveAddr. * Higher level functions must call this routine rather than - * I2CStart/PutByte because a hardware I2C master may not be able + * I2CStart/PutByte because a hardware I2C master may not be able * to send a slave address without a start condition. * * The same timeouts apply as with I2CPutByte and additional a - * StartTimeout, similar to the ByteTimeout but for the start + * StartTimeout, similar to the ByteTimeout but for the start * condition. * * In case of a timeout, the bus is left in a clean idle condition. @@ -325,7 +325,7 @@ I2CGetByte(I2CDevPtr d, I2CByte * data, Bool last) * in the least significant byte. This is, the slave address must include the * R/_W flag as least significant bit. * - * The most significant byte of the address will be sent _after_ the LSB, + * The most significant byte of the address will be sent _after_ the LSB, * but only if the LSB indicates: * a) an 11 bit address, this is LSB = 1111 0xxx. * b) a 'general call address', this is LSB = 0000 000x - see the I2C specs @@ -354,7 +354,7 @@ I2CAddress(I2CDevPtr d, I2CSlaveAddr addr) * ======================================================== */ -/* Function for probing. Just send the slave address +/* Function for probing. Just send the slave address * and return true if the device responds. The slave address * must have the lsb set to reflect a read (1) or write (0) access. * Don't expect a read- or write-only device will respond otherwise. @@ -403,7 +403,7 @@ xf86I2CProbeAddress(I2CBusPtr b, I2CSlaveAddr addr) * * The functions exits immediately when an error occures, * not proceeding any data left. However, step 3 will - * be executed anyway to leave the bus in clean idle state. + * be executed anyway to leave the bus in clean idle state. */ static Bool @@ -470,7 +470,7 @@ xf86I2CReadByte(I2CDevPtr d, I2CByte subaddr, I2CByte * pbyte) return xf86I2CWriteRead(d, &subaddr, 1, pbyte, 1); } -/* Read bytes from subsequent registers determined by the +/* Read bytes from subsequent registers determined by the * sub-address of the first register. */ @@ -480,7 +480,7 @@ xf86I2CReadBytes(I2CDevPtr d, I2CByte subaddr, I2CByte * pbyte, int n) return xf86I2CWriteRead(d, &subaddr, 1, pbyte, n); } -/* Read a word (high byte, then low byte) from one of the registers +/* Read a word (high byte, then low byte) from one of the registers * determined by its sub-address. */ @@ -511,7 +511,7 @@ xf86I2CWriteByte(I2CDevPtr d, I2CByte subaddr, I2CByte byte) return xf86I2CWriteRead(d, wb, 2, NULL, 0); } -/* Write bytes to subsequent registers determined by the +/* Write bytes to subsequent registers determined by the * sub-address of the first register. */ @@ -537,7 +537,7 @@ xf86I2CWriteBytes(I2CDevPtr d, I2CByte subaddr, return r; } -/* Write a word (high byte, then low byte) to one of the registers +/* Write a word (high byte, then low byte) to one of the registers * determined by its sub-address. */ @@ -553,7 +553,7 @@ xf86I2CWriteWord(I2CDevPtr d, I2CByte subaddr, unsigned short word) return xf86I2CWriteRead(d, wb, 3, NULL, 0); } -/* Write a vector of bytes to not adjacent registers. This vector is, +/* Write a vector of bytes to not adjacent registers. This vector is, * 1st byte sub-address, 2nd byte value, 3rd byte sub-address asf. * This function is intended to initialize devices. Note this function * exits immediately when an error occurs, some registers may @@ -637,7 +637,7 @@ xf86DestroyI2CDevRec(I2CDevPtr d, Bool unalloc) /* I2C transmissions are related to an I2CDevRec you must link to a * previously registered bus (see xf86I2CBusInit) before attempting * to read and write data. You may call xf86I2CProbeAddress first to - * see if the device in question is present on this bus. + * see if the device in question is present on this bus. * * xf86I2CDevInit will not allocate an I2CBusRec for you, instead you * may enter a pointer to a statically allocated I2CDevRec or the (modified) @@ -779,9 +779,9 @@ xf86DestroyI2CBusRec(I2CBusPtr b, Bool unalloc, Bool devs_too) Bool xf86I2CBusInit(I2CBusPtr b) { - /* I2C buses must be identified by a unique scrnIndex - * and name. If scrnIndex is unspecified (a negative value), - * then the name must be unique throughout the server. + /* I2C buses must be identified by a unique scrnIndex + * and name. If scrnIndex is unspecified (a negative value), + * then the name must be unique throughout the server. */ if (b->BusName == NULL || xf86I2CFindBus(b->scrnIndex, b->BusName) != NULL) |