staging: comedi: das16m1: sample types are unsigned
Sample values in comedi are generally represented as unsigned values. Change the element type of the `ai_buffer[]` member of `struct das16m1_private_struct` and the types used by `munge_sample()` and `munge_sample_array()` from `short` to `unsigned short` for consistency. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -131,18 +131,18 @@ struct das16m1_private_struct {
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* needed to keep track of whether new count has been loaded into
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* counter yet (loaded by first sample conversion) */
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u16 initial_hw_count;
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short ai_buffer[FIFO_SIZE];
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unsigned short ai_buffer[FIFO_SIZE];
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unsigned int divisor1; /* divides master clock to obtain conversion speed */
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unsigned int divisor2; /* divides master clock to obtain conversion speed */
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unsigned long extra_iobase;
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};
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static inline short munge_sample(short data)
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static inline unsigned short munge_sample(unsigned short data)
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{
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return (data >> 4) & 0xfff;
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}
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static void munge_sample_array(short *array, unsigned int num_elements)
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static void munge_sample_array(unsigned short *array, unsigned int num_elements)
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{
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unsigned int i;
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