diff options
Diffstat (limited to 'c/src/libchip/i2c/i2c-sc620.c')
-rw-r--r-- | c/src/libchip/i2c/i2c-sc620.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/c/src/libchip/i2c/i2c-sc620.c b/c/src/libchip/i2c/i2c-sc620.c deleted file mode 100644 index e4dd2d0871..0000000000 --- a/c/src/libchip/i2c/i2c-sc620.c +++ /dev/null @@ -1,95 +0,0 @@ -/** - * @file - * - * @brief I2C Driver for SEMTECH SC620 Octal LED Driver - */ - -/* - * Copyright (c) 2013 embedded brains GmbH. All rights reserved. - * - * embedded brains GmbH - * Obere Lagerstr. 30 - * 82178 Puchheim - * Germany - * <rtems@embedded-brains.de> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#ifdef HAVE_CONFIG_H - #include "config.h" -#endif - -#include <libchip/i2c-sc620.h> - -#include <rtems/libio.h> - -#define SC620_REG_COUNT 10 - -static rtems_status_code i2c_sc620_write( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *arg -) -{ - rtems_status_code sc = RTEMS_IO_ERROR; - rtems_libio_rw_args_t *rw = arg; - unsigned char *buf = (unsigned char *) &rw->buffer[0]; - - if (rw->count == 2 && buf[0] < SC620_REG_COUNT) { - int rv; - - rv = rtems_libi2c_start_write_bytes( - minor, buf, 2 - ); - if (rv == 2) { - sc = rtems_libi2c_send_stop(minor); - } - } - - rw->bytes_moved = sc == RTEMS_SUCCESSFUL ? 2 : 0; - - return sc; -} - -static rtems_status_code i2c_sc620_read( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *arg -) -{ - rtems_status_code sc = RTEMS_IO_ERROR; - rtems_libio_rw_args_t *rw = arg; - unsigned char *buf = (unsigned char *) &rw->buffer[0]; - - if (rw->count == 1 && buf[0] < SC620_REG_COUNT) { - int rv; - - rv = rtems_libi2c_start_write_bytes(minor, buf, 1); - if (rv == 1) { - sc = rtems_libi2c_send_addr(minor, 0); - if (sc == RTEMS_SUCCESSFUL) { - rv = rtems_libi2c_read_bytes(minor, buf, 1); - if (rv == 1) { - sc = rtems_libi2c_send_stop(minor); - } - } - } - } - - rw->bytes_moved = sc == RTEMS_SUCCESSFUL ? 1 : 0; - - return sc; -} - -static rtems_driver_address_table i2c_sc620_ops = { - .read_entry = i2c_sc620_read, - .write_entry = i2c_sc620_write -}; - -rtems_libi2c_drv_t i2c_sc620_driver = { - .ops = &i2c_sc620_ops, - .size = sizeof(i2c_sc620_driver) -}; |