drivers/media/dvb-frontends/cxd2880/cxd2880_common.h

   1 /*
   2  * cxd2880_common.h
   3  * Sony CXD2880 DVB-T2/T tuner + demodulator driver common definitions
   4  *
   5  * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; version 2 of the License.
  10  *
  11  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  12  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  14  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  15  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  16  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  17  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  18  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  19  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  20  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #ifndef CXD2880_COMMON_H
  27 #define CXD2880_COMMON_H
  28
  29 #include <linux/types.h>
  30
  31 #ifndef NULL
  32 #ifdef __cplusplus
  33 #define NULL 0
  34 #else
  35 #define NULL ((void *)0)
  36 #endif
  37 #endif
  38
  39 #include <linux/delay.h>
  40 #define CXD2880_SLEEP(n) msleep(n)
  41 #ifndef CXD2880_SLEEP_IN_MON
  42 #define CXD2880_SLEEP_IN_MON(n, obj) CXD2880_SLEEP(n)
  43 #endif
  44
  45 #define CXD2880_ARG_UNUSED(arg) ((void)(arg))
  46
  47 enum cxd2880_ret {
  48         CXD2880_RESULT_OK,
  49         CXD2880_RESULT_ERROR_ARG,
  50         CXD2880_RESULT_ERROR_IO,
  51         CXD2880_RESULT_ERROR_SW_STATE,
  52         CXD2880_RESULT_ERROR_HW_STATE,
  53         CXD2880_RESULT_ERROR_TIMEOUT,
  54         CXD2880_RESULT_ERROR_UNLOCK,
  55         CXD2880_RESULT_ERROR_RANGE,
  56         CXD2880_RESULT_ERROR_NOSUPPORT,
  57         CXD2880_RESULT_ERROR_CANCEL,
  58         CXD2880_RESULT_ERROR_OTHER,
  59         CXD2880_RESULT_ERROR_OVERFLOW,
  60         CXD2880_RESULT_OK_CONFIRM
  61 };
  62
  63 int cxd2880_convert2s_complement(u32 value, u32 bitlen);
  64
  65 u32 cxd2880_bit_split_from_byte_array(u8 *array, u32 start_bit, u32 bit_num);
  66
  67 struct cxd2880_atomic {
  68         int counter;
  69 };
  70
  71 #define cxd2880_atomic_set(a, i) ((a)->counter = i)
  72 #define cxd2880_atomic_read(a) ((a)->counter)
  73
  74 struct cxd2880_stopwatch {
  75         u32 start_time;
  76 };
  77
  78 enum cxd2880_ret cxd2880_stopwatch_start(struct cxd2880_stopwatch *stopwatch);
  79
  80 enum cxd2880_ret cxd2880_stopwatch_sleep(struct cxd2880_stopwatch *stopwatch,
  81                                          u32 ms);
  82
  83 enum cxd2880_ret cxd2880_stopwatch_elapsed(struct cxd2880_stopwatch *stopwatch,
  84                                            u32 *elapsed);
  85
  86 #endif