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48 lines
1.4 KiB
48 lines
1.4 KiB
/* |
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* include/media/si4713.h |
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* |
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* Board related data definitions for Si4713 i2c device driver. |
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* |
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* Copyright (c) 2009 Nokia Corporation |
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* Contact: Eduardo Valentin <eduardo.valentin@nokia.com> |
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* |
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* This file is licensed under the terms of the GNU General Public License |
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* version 2. This program is licensed "as is" without any warranty of any |
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* kind, whether express or implied. |
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* |
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*/ |
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#ifndef SI4713_H |
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#define SI4713_H |
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/* The SI4713 I2C sensor chip has a fixed slave address of 0xc6 or 0x22. */ |
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#define SI4713_I2C_ADDR_BUSEN_HIGH 0x63 |
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#define SI4713_I2C_ADDR_BUSEN_LOW 0x11 |
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/* |
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* Platform dependent definition |
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*/ |
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struct si4713_platform_data { |
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bool is_platform_device; |
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}; |
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/* |
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* Structure to query for Received Noise Level (RNL). |
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*/ |
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struct si4713_rnl { |
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__u32 index; /* modulator index */ |
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__u32 frequency; /* frequency to peform rnl measurement */ |
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__s32 rnl; /* result of measurement in dBuV */ |
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__u32 reserved[4]; /* drivers and apps must init this to 0 */ |
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}; |
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/* |
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* This is the ioctl number to query for rnl. Users must pass a |
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* struct si4713_rnl pointer specifying desired frequency in 'frequency' field |
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* following driver capabilities (i.e V4L2_TUNER_CAP_LOW). |
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* Driver must return measured value in the same struture, filling 'rnl' field. |
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*/ |
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#define SI4713_IOC_MEASURE_RNL _IOWR('V', BASE_VIDIOC_PRIVATE + 0, \ |
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struct si4713_rnl) |
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#endif /* ifndef SI4713_H*/
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