diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c')
| -rw-r--r-- | c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c b/c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c index cf23767577..8850ab8aaa 100644 --- a/c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c +++ b/c/src/lib/libbsp/m68k/mcf5206elite/i2c/i2cdrv.c @@ -32,7 +32,7 @@ #define I2C_SELECT_BUS(bus) #endif -/* +/* * Few I2C transfers may be posted simultaneously, but MBUS driver is able * to process it one-by-one. To serialize transfers, function i2c_transfer * put transfer information to the queue and initiate new transfers if MBUS @@ -40,7 +40,7 @@ * when current active transfer is finished. */ -/* +/* * i2c_qel - I2C transfers queue element; contain information about * delayed transfer */ @@ -113,7 +113,7 @@ i2cdrv_unload(void) mbus_busy = 1; rtems_interrupt_enable(level); qel = tqueue + tqueue_tail; - + I2C_SELECT_BUS(qel->bus); if (i2cdrv_bus_clock_div[qel->bus] != i2cdrv_bus_clock_div_current) { @@ -160,17 +160,17 @@ i2c_transfer(i2c_bus_number bus, int nmsg, i2c_message *msg, { i2c_qel qel; rtems_interrupt_level level; - + if (bus >= I2C_NUMBER_OF_BUSES) { return RTEMS_INVALID_NUMBER; } - + if (msg == NULL) { return RTEMS_INVALID_ADDRESS; } - + qel.bus = bus; qel.msg = msg; qel.nmsg = nmsg; @@ -204,11 +204,11 @@ i2cdrv_initialize(rtems_device_major_number major, tqueue_tail = tqueue_head = 0; tqueue_size = 32; tqueue = calloc(tqueue_size, sizeof(i2c_qel)); - + sc = mcfmbus_initialize(&mbus, MBAR); if (sc != RTEMS_SUCCESSFUL) return sc; - + for (i = 0; i < I2C_NUMBER_OF_BUSES; i++) { sc = i2c_select_clock_rate(i, 4096); @@ -221,7 +221,7 @@ i2cdrv_initialize(rtems_device_major_number major, /* i2c_select_clock_rate -- * select I2C bus clock rate for specified bus. Some bus controller do not - * allow to select arbitrary clock rate; in this case nearest possible + * allow to select arbitrary clock rate; in this case nearest possible * slower clock rate is selected. * * PARAMETERS: @@ -229,7 +229,7 @@ i2cdrv_initialize(rtems_device_major_number major, * bps - data transfer rate for this bytes in bits per second * * RETURNS: - * RTEMS_SUCCESSFUL, if operation performed successfully, + * RTEMS_SUCCESSFUL, if operation performed successfully, * RTEMS_INVALID_NUMBER, if wrong bus number is specified, * RTEMS_UNSATISFIED, if bus do not support data transfer rate selection * or specified data transfer rate could not be used. @@ -240,10 +240,10 @@ i2c_select_clock_rate(i2c_bus_number bus, int bps) int div; if (bus >= I2C_NUMBER_OF_BUSES) return RTEMS_INVALID_NUMBER; - + if (bps == 0) return RTEMS_UNSATISFIED; - + div = BSP_SYSTEM_FREQUENCY / bps; i2cdrv_bus_clock_div[bus] = div; return RTEMS_SUCCESSFUL; |