* @numvals: The number of values returned by a single scan
*/
struct max1363_mode {
- const char *name;
int8_t conf;
- int numvals;
+ long modemask;
};
-#define MAX1363_MODE_SINGLE(_num) { \
- .name = #_num, \
- .conf = MAX1363_CHANNEL_SEL(_num) \
+#define MAX1363_MODE_SINGLE(_num, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_SINGLE_1 \
| MAX1363_CONFIG_SE, \
- .numvals = 1, \
+ .modemask = _mask, \
}
-#define MAX1363_MODE_SINGLE_TIMES_8(_num) { \
- .name = #_num"x8", \
- .conf = MAX1363_CHANNEL_SEL(_num) \
- | MAX1363_CONFIG_SCAN_SINGLE_8 \
- | MAX1363_CONFIG_SE, \
- .numvals = 8, \
- }
-
-#define MAX1363_MODE_SCAN_TO_CHANNEL(_num) { \
- .name = "0..."#_num, \
- .conf = MAX1363_CHANNEL_SEL(_num) \
+#define MAX1363_MODE_SCAN_TO_CHANNEL(_num, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_TO_CS \
| MAX1363_CONFIG_SE, \
- .numvals = _num + 1, \
+ .modemask = _mask, \
}
/* note not available for max1363 hence naming */
-#define MAX1236_MODE_SCAN_MID_TO_CHANNEL(_mid, _num) { \
- .name = #_mid"..."#_num, \
- .conf = MAX1363_CHANNEL_SEL(_num) \
+#define MAX1236_MODE_SCAN_MID_TO_CHANNEL(_mid, _num, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1236_SCAN_MID_TO_CHANNEL \
| MAX1363_CONFIG_SE, \
- .numvals = _num - _mid + 1 \
+ .modemask = _mask \
}
-#define MAX1363_MODE_DIFF_SINGLE(_nump, _numm) { \
- .name = #_nump"-"#_numm, \
- .conf = MAX1363_CHANNEL_SEL(_nump) \
+#define MAX1363_MODE_DIFF_SINGLE(_nump, _numm, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_nump) \
| MAX1363_CONFIG_SCAN_SINGLE_1 \
| MAX1363_CONFIG_DE, \
- .numvals = 1, \
- }
-
-#define MAX1363_MODE_DIFF_SINGLE_TIMES_8(_nump, _numm) { \
- .name = #_nump"-"#_numm, \
- .conf = MAX1363_CHANNEL_SEL(_nump) \
- | MAX1363_CONFIG_SCAN_SINGLE_8 \
- | MAX1363_CONFIG_DE, \
- .numvals = 1, \
+ .modemask = _mask \
}
/* Can't think how to automate naming so specify for now */
-#define MAX1363_MODE_DIFF_SCAN_TO_CHANNEL_NAMED(_name, _num, _numvals) { \
- .name = #_name, \
- .conf = MAX1363_CHANNEL_SEL(_num) \
+#define MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(_num, _numvals, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1363_CONFIG_SCAN_TO_CS \
| MAX1363_CONFIG_DE, \
- .numvals = _numvals, \
+ .modemask = _mask \
}
/* note only available for max1363 hence naming */
-#define MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL_NAMED(_name, _num, _numvals) { \
- .name = #_name, \
- .conf = MAX1363_CHANNEL_SEL(_num) \
+#define MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(_num, _numvals, _mask) { \
+ .conf = MAX1363_CHANNEL_SEL(_num) \
| MAX1236_SCAN_MID_TO_CHANNEL \
| MAX1363_CONFIG_SE, \
- .numvals = _numvals, \
+ .modemask = _mask \
}
/* Not currently handled */
* clear what all the various options actually do. Alternative suggestions
* that don't require user to have intimate knowledge of the chip welcomed.
*/
+enum max1363_channels {
+ max1363_in0, max1363_in1, max1363_in2, max1363_in3,
+ max1363_in4, max1363_in5, max1363_in6, max1363_in7,
+ max1363_in8, max1363_in9, max1363_in10, max1363_in11,
+
+ max1363_in0min1, max1363_in2min3,
+ max1363_in4min5, max1363_in6min7,
+ max1363_in8min9, max1363_in10min11,
+
+ max1363_in1min0, max1363_in3min2,
+ max1363_in5min4, max1363_in7min6,
+ max1363_in9min8, max1363_in11min10,
+ };
/* This must be maintained along side the max1363_mode_table in max1363_core */
enum max1363_modes {
/* Single read of a single channel */
_s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, _s8, _s9, _s10, _s11,
- /* Eight reads of a single channel */
- se0, se1, se2, se3, se4, se5, se6, se7, se8, se9, se10, se11,
- /* Scan to channel */
- s0to1, s0to2, s0to3, s0to4, s0to5, s0to6,
- s0to7, s0to8, s0to9, s0to10, s0to11,
/* Differential single read */
d0m1, d2m3, d4m5, d6m7, d8m9, d10m11,
d1m0, d3m2, d5m4, d7m6, d9m8, d11m10,
- /* Differential single read 8 times */
- de0m1, de2m3, de4m5, de6m7, de8m9, de10m11,
- de1m0, de3m2, de5m4, de7m6, de9m8, de11m10,
- /* Differential scan to channel */
- d0m1to2m3, d0m1to4m5, d0m1to6m7, d0m1to8m9, d0m1to10m11,
- d1m0to3m2, d1m0to5m4, d1m0to7m6, d1m0to9m8, d1m0to11m10,
- /* Scan mid to channel max123{6-9} only */
- s2to3, s6to7, s6to8, s6to9, s6to10, s6to11,
- /* Differential scan mid to channel */
- s6m7to8m9, s6m7to10m11, s7m6to9m8, s7m6to11m10,
+ /* Scan to channel and mid to channel where overlapping */
+ s0to1, s0to2, s2to3, s0to3, s0to4, s0to5, s0to6,
+ s6to7, s0to7, s6to8, s0to8, s6to9,
+ s0to9, s6to10, s0to10, s6to11, s0to11,
+ /* Differential scan to channel and mid to channel where overlapping */
+ d0m1to2m3, d0m1to4m5, d0m1to6m7, d6m7to8m9,
+ d0m1to8m9, d6m7to10m11, d0m1to10m11, d1m0to3m2,
+ d1m0to5m4, d1m0to7m6, d7m6to9m8, d1m0to9m8,
+ d7m6to11m10, d1m0to11m10,
};
/**
* struct max1363_chip_info - chip specifc information
* @name: indentification string for chip
* @num_inputs: number of physical inputs on chip
+ * @bits: accuracy of the adc in bits
* @int_vref_mv: the internal reference voltage
* @monitor_mode: whether the chip supports monitor interrupts
* @mode_list: array of available scan modes
struct max1363_chip_info {
const char *name;
u8 num_inputs;
+ u8 bits;
u16 int_vref_mv;
bool monitor_mode;
const enum max1363_modes *mode_list;
int num_modes;
enum max1363_modes default_mode;
+ struct attribute_group *dev_attrs;
+ struct attribute_group *scan_attrs;
};
* @configbyte: cache of current device config byte
* @chip_info: chip model specific constants, available modes etc
* @current_mode: the scan mode of this chip
+ * @requestedmask: a valid requested set of channels
* @poll_work: bottom half of polling interrupt handler
* @protect_ring: used to ensure only one polling bh running at a time
* @reg: supply regulator
char configbyte;
const struct max1363_chip_info *chip_info;
const struct max1363_mode *current_mode;
+ u32 requestedmask;
struct work_struct poll_work;
atomic_t protect_ring;
struct iio_trigger *trig;
struct regulator *reg;
};
+
+const struct max1363_mode
+*max1363_match_mode(u32 mask, const struct max1363_chip_info *ci);
+
+int max1363_set_scan_mode(struct max1363_state *st);
+
#ifdef CONFIG_MAX1363_RING_BUFFER
-ssize_t max1363_scan_from_ring(struct device *dev,
- struct device_attribute *attr,
- char *buf);
+int max1363_single_channel_from_ring(long mask, struct max1363_state *st);
int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev);
void max1363_ring_cleanup(struct iio_dev *indio_dev);
return 0;
};
-
-static inline ssize_t max1363_scan_from_ring(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
{
- return 0;
+ return -EINVAL;
};
+
static inline int
max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev)
{
projects / linux-flexiantxendom0-3.2.10.git / blobdiff