Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1 | /* |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 2 | * iio/adc/max1363.c |
| 3 | * Copyright (C) 2008-2010 Jonathan Cameron |
| 4 | * |
| 5 | * based on linux/drivers/i2c/chips/max123x |
| 6 | * Copyright (C) 2002-2004 Stefan Eletzhofer |
| 7 | * |
| 8 | * based on linux/drivers/acron/char/pcf8583.c |
| 9 | * Copyright (C) 2000 Russell King |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | * |
| 15 | * max1363.c |
| 16 | * |
| 17 | * Partial support for max1363 and similar chips. |
| 18 | * |
| 19 | * Not currently implemented. |
| 20 | * |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 21 | * - Control of internal reference. |
| 22 | */ |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 23 | |
| 24 | #include <linux/interrupt.h> |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 25 | #include <linux/device.h> |
| 26 | #include <linux/kernel.h> |
| 27 | #include <linux/sysfs.h> |
| 28 | #include <linux/list.h> |
| 29 | #include <linux/i2c.h> |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 30 | #include <linux/regulator/consumer.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 31 | #include <linux/slab.h> |
Jonathan Cameron | c40ab87 | 2010-06-26 12:54:14 +0100 | [diff] [blame] | 32 | #include <linux/err.h> |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 33 | |
| 34 | #include "../iio.h" |
| 35 | #include "../sysfs.h" |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 36 | #include "../ring_generic.h" |
Jonathan Cameron | cdf3870 | 2011-08-12 17:08:43 +0100 | [diff] [blame^] | 37 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 38 | #include "max1363.h" |
| 39 | |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 40 | #define MAX1363_MODE_SINGLE(_num, _mask) { \ |
| 41 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 42 | | MAX1363_CONFIG_SCAN_SINGLE_1 \ |
| 43 | | MAX1363_CONFIG_SE, \ |
| 44 | .modemask = _mask, \ |
| 45 | } |
| 46 | |
| 47 | #define MAX1363_MODE_SCAN_TO_CHANNEL(_num, _mask) { \ |
| 48 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 49 | | MAX1363_CONFIG_SCAN_TO_CS \ |
| 50 | | MAX1363_CONFIG_SE, \ |
| 51 | .modemask = _mask, \ |
| 52 | } |
| 53 | |
| 54 | /* note not available for max1363 hence naming */ |
| 55 | #define MAX1236_MODE_SCAN_MID_TO_CHANNEL(_mid, _num, _mask) { \ |
| 56 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 57 | | MAX1236_SCAN_MID_TO_CHANNEL \ |
| 58 | | MAX1363_CONFIG_SE, \ |
| 59 | .modemask = _mask \ |
| 60 | } |
| 61 | |
| 62 | #define MAX1363_MODE_DIFF_SINGLE(_nump, _numm, _mask) { \ |
| 63 | .conf = MAX1363_CHANNEL_SEL(_nump) \ |
| 64 | | MAX1363_CONFIG_SCAN_SINGLE_1 \ |
| 65 | | MAX1363_CONFIG_DE, \ |
| 66 | .modemask = _mask \ |
| 67 | } |
| 68 | |
| 69 | /* Can't think how to automate naming so specify for now */ |
| 70 | #define MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(_num, _numvals, _mask) { \ |
| 71 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 72 | | MAX1363_CONFIG_SCAN_TO_CS \ |
| 73 | | MAX1363_CONFIG_DE, \ |
| 74 | .modemask = _mask \ |
| 75 | } |
| 76 | |
| 77 | /* note only available for max1363 hence naming */ |
| 78 | #define MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(_num, _numvals, _mask) { \ |
| 79 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 80 | | MAX1236_SCAN_MID_TO_CHANNEL \ |
| 81 | | MAX1363_CONFIG_SE, \ |
| 82 | .modemask = _mask \ |
| 83 | } |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 84 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 85 | static const struct max1363_mode max1363_mode_table[] = { |
| 86 | /* All of the single channel options first */ |
| 87 | MAX1363_MODE_SINGLE(0, 1 << 0), |
| 88 | MAX1363_MODE_SINGLE(1, 1 << 1), |
| 89 | MAX1363_MODE_SINGLE(2, 1 << 2), |
| 90 | MAX1363_MODE_SINGLE(3, 1 << 3), |
| 91 | MAX1363_MODE_SINGLE(4, 1 << 4), |
| 92 | MAX1363_MODE_SINGLE(5, 1 << 5), |
| 93 | MAX1363_MODE_SINGLE(6, 1 << 6), |
| 94 | MAX1363_MODE_SINGLE(7, 1 << 7), |
| 95 | MAX1363_MODE_SINGLE(8, 1 << 8), |
| 96 | MAX1363_MODE_SINGLE(9, 1 << 9), |
| 97 | MAX1363_MODE_SINGLE(10, 1 << 10), |
| 98 | MAX1363_MODE_SINGLE(11, 1 << 11), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 99 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 100 | MAX1363_MODE_DIFF_SINGLE(0, 1, 1 << 12), |
| 101 | MAX1363_MODE_DIFF_SINGLE(2, 3, 1 << 13), |
| 102 | MAX1363_MODE_DIFF_SINGLE(4, 5, 1 << 14), |
| 103 | MAX1363_MODE_DIFF_SINGLE(6, 7, 1 << 15), |
| 104 | MAX1363_MODE_DIFF_SINGLE(8, 9, 1 << 16), |
| 105 | MAX1363_MODE_DIFF_SINGLE(10, 11, 1 << 17), |
| 106 | MAX1363_MODE_DIFF_SINGLE(1, 0, 1 << 18), |
| 107 | MAX1363_MODE_DIFF_SINGLE(3, 2, 1 << 19), |
| 108 | MAX1363_MODE_DIFF_SINGLE(5, 4, 1 << 20), |
| 109 | MAX1363_MODE_DIFF_SINGLE(7, 6, 1 << 21), |
| 110 | MAX1363_MODE_DIFF_SINGLE(9, 8, 1 << 22), |
| 111 | MAX1363_MODE_DIFF_SINGLE(11, 10, 1 << 23), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 112 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 113 | /* The multichannel scans next */ |
| 114 | MAX1363_MODE_SCAN_TO_CHANNEL(1, 0x003), |
| 115 | MAX1363_MODE_SCAN_TO_CHANNEL(2, 0x007), |
| 116 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(2, 3, 0x00C), |
| 117 | MAX1363_MODE_SCAN_TO_CHANNEL(3, 0x00F), |
| 118 | MAX1363_MODE_SCAN_TO_CHANNEL(4, 0x01F), |
| 119 | MAX1363_MODE_SCAN_TO_CHANNEL(5, 0x03F), |
| 120 | MAX1363_MODE_SCAN_TO_CHANNEL(6, 0x07F), |
| 121 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 7, 0x0C0), |
| 122 | MAX1363_MODE_SCAN_TO_CHANNEL(7, 0x0FF), |
| 123 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 8, 0x1C0), |
| 124 | MAX1363_MODE_SCAN_TO_CHANNEL(8, 0x1FF), |
| 125 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 9, 0x3C0), |
| 126 | MAX1363_MODE_SCAN_TO_CHANNEL(9, 0x3FF), |
| 127 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 10, 0x7C0), |
| 128 | MAX1363_MODE_SCAN_TO_CHANNEL(10, 0x7FF), |
| 129 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 11, 0xFC0), |
| 130 | MAX1363_MODE_SCAN_TO_CHANNEL(11, 0xFFF), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 131 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 132 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(2, 2, 0x003000), |
| 133 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(4, 3, 0x007000), |
| 134 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(6, 4, 0x00F000), |
| 135 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(8, 2, 0x018000), |
| 136 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(8, 5, 0x01F000), |
| 137 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(10, 3, 0x038000), |
| 138 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(10, 6, 0x3F000), |
| 139 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(3, 2, 0x0C0000), |
| 140 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(5, 3, 0x1C0000), |
| 141 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(7, 4, 0x3C0000), |
| 142 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(9, 2, 0x600000), |
| 143 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(9, 5, 0x7C0000), |
| 144 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(11, 3, 0xE00000), |
| 145 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(11, 6, 0xFC0000), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 146 | }; |
| 147 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 148 | const struct max1363_mode |
Greg Kroah-Hartman | 1b183e4 | 2010-05-04 22:24:05 -0700 | [diff] [blame] | 149 | *max1363_match_mode(u32 mask, const struct max1363_chip_info *ci) |
| 150 | { |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 151 | int i; |
| 152 | if (mask) |
| 153 | for (i = 0; i < ci->num_modes; i++) |
Greg Kroah-Hartman | 1b183e4 | 2010-05-04 22:24:05 -0700 | [diff] [blame] | 154 | if (!((~max1363_mode_table[ci->mode_list[i]].modemask) & |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 155 | mask)) |
Greg Kroah-Hartman | 1b183e4 | 2010-05-04 22:24:05 -0700 | [diff] [blame] | 156 | return &max1363_mode_table[ci->mode_list[i]]; |
| 157 | return NULL; |
Mike Frysinger | c608cb0 | 2010-05-23 03:10:30 -0400 | [diff] [blame] | 158 | } |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 159 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 160 | static int max1363_write_basic_config(struct i2c_client *client, |
| 161 | unsigned char d1, |
| 162 | unsigned char d2) |
| 163 | { |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 164 | u8 tx_buf[2] = {d1, d2}; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 165 | |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 166 | return i2c_master_send(client, tx_buf, 2); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 167 | } |
| 168 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 169 | int max1363_set_scan_mode(struct max1363_state *st) |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 170 | { |
| 171 | st->configbyte &= ~(MAX1363_CHANNEL_SEL_MASK |
| 172 | | MAX1363_SCAN_MASK |
| 173 | | MAX1363_SE_DE_MASK); |
| 174 | st->configbyte |= st->current_mode->conf; |
| 175 | |
| 176 | return max1363_write_basic_config(st->client, |
| 177 | st->setupbyte, |
| 178 | st->configbyte); |
| 179 | } |
| 180 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 181 | static int max1363_read_single_chan(struct iio_dev *indio_dev, |
| 182 | struct iio_chan_spec const *chan, |
| 183 | int *val, |
| 184 | long m) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 185 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 186 | int ret = 0; |
| 187 | s32 data; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 188 | char rxbuf[2]; |
| 189 | long mask; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 190 | struct max1363_state *st = iio_priv(indio_dev); |
| 191 | struct i2c_client *client = st->client; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 192 | |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 193 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 194 | /* |
| 195 | * If monitor mode is enabled, the method for reading a single |
| 196 | * channel will have to be rather different and has not yet |
| 197 | * been implemented. |
| 198 | */ |
| 199 | if (st->monitor_on) { |
| 200 | ret = -EBUSY; |
| 201 | goto error_ret; |
| 202 | } |
| 203 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 204 | /* If ring buffer capture is occurring, query the buffer */ |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 205 | if (iio_ring_enabled(indio_dev)) { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 206 | mask = max1363_mode_table[chan->address].modemask; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 207 | data = max1363_single_channel_from_ring(mask, st); |
| 208 | if (data < 0) { |
| 209 | ret = data; |
| 210 | goto error_ret; |
| 211 | } |
| 212 | } else { |
| 213 | /* Check to see if current scan mode is correct */ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 214 | if (st->current_mode != &max1363_mode_table[chan->address]) { |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 215 | /* Update scan mode if needed */ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 216 | st->current_mode = &max1363_mode_table[chan->address]; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 217 | ret = max1363_set_scan_mode(st); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 218 | if (ret < 0) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 219 | goto error_ret; |
| 220 | } |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 221 | if (st->chip_info->bits != 8) { |
| 222 | /* Get reading */ |
| 223 | data = i2c_master_recv(client, rxbuf, 2); |
| 224 | if (data < 0) { |
| 225 | ret = data; |
| 226 | goto error_ret; |
| 227 | } |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 228 | data = (s32)(rxbuf[1]) | ((s32)(rxbuf[0] & 0x0F)) << 8; |
| 229 | } else { |
| 230 | /* Get reading */ |
| 231 | data = i2c_master_recv(client, rxbuf, 1); |
| 232 | if (data < 0) { |
| 233 | ret = data; |
| 234 | goto error_ret; |
| 235 | } |
| 236 | data = rxbuf[0]; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 237 | } |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 238 | } |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 239 | *val = data; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 240 | error_ret: |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 241 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 242 | return ret; |
| 243 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 244 | } |
| 245 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 246 | static int max1363_read_raw(struct iio_dev *indio_dev, |
| 247 | struct iio_chan_spec const *chan, |
| 248 | int *val, |
| 249 | int *val2, |
| 250 | long m) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 251 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 252 | struct max1363_state *st = iio_priv(indio_dev); |
| 253 | int ret; |
| 254 | switch (m) { |
| 255 | case 0: |
| 256 | ret = max1363_read_single_chan(indio_dev, chan, val, m); |
Jonathan Cameron | cd03801 | 2011-08-12 16:55:29 +0100 | [diff] [blame] | 257 | if (ret < 0) |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 258 | return ret; |
| 259 | return IIO_VAL_INT; |
| 260 | case (1 << IIO_CHAN_INFO_SCALE_SHARED): |
| 261 | if ((1 << (st->chip_info->bits + 1)) > |
| 262 | st->chip_info->int_vref_mv) { |
| 263 | *val = 0; |
| 264 | *val2 = 500000; |
| 265 | return IIO_VAL_INT_PLUS_MICRO; |
| 266 | } else { |
| 267 | *val = (st->chip_info->int_vref_mv) |
| 268 | >> st->chip_info->bits; |
| 269 | return IIO_VAL_INT; |
| 270 | } |
| 271 | default: |
| 272 | return -EINVAL; |
| 273 | } |
| 274 | return 0; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 275 | } |
| 276 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 277 | /* Applies to max1363 */ |
| 278 | static const enum max1363_modes max1363_mode_list[] = { |
| 279 | _s0, _s1, _s2, _s3, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 280 | s0to1, s0to2, s0to3, |
| 281 | d0m1, d2m3, d1m0, d3m2, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 282 | d0m1to2m3, d1m0to3m2, |
| 283 | }; |
| 284 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 285 | #define MAX1363_EV_M \ |
| 286 | (IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) \ |
| 287 | | IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)) |
| 288 | #define MAX1363_INFO_MASK (1 << IIO_CHAN_INFO_SCALE_SHARED) |
| 289 | |
| 290 | static struct iio_chan_spec max1363_channels[] = { |
| 291 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 292 | _s0, 0, IIO_ST('u', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 293 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 294 | _s1, 1, IIO_ST('u', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 295 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 296 | _s2, 2, IIO_ST('u', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 297 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 298 | _s3, 3, IIO_ST('u', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 299 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 1, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 300 | d0m1, 4, IIO_ST('s', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 301 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 3, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 302 | d2m3, 5, IIO_ST('s', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 303 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 304 | d1m0, 6, IIO_ST('s', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 305 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 3, 2, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 306 | d3m2, 7, IIO_ST('s', 12, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 307 | IIO_CHAN_SOFT_TIMESTAMP(8) |
| 308 | }; |
| 309 | |
| 310 | static struct iio_chan_spec max1361_channels[] = { |
| 311 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 0, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 312 | _s0, 0, IIO_ST('u', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 313 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 314 | _s1, 1, IIO_ST('u', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 315 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 2, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 316 | _s2, 2, IIO_ST('u', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 317 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, 3, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 318 | _s3, 3, IIO_ST('u', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 319 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 0, 1, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 320 | d0m1, 4, IIO_ST('s', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 321 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 2, 3, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 322 | d2m3, 5, IIO_ST('s', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 323 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 1, 0, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 324 | d1m0, 6, IIO_ST('s', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 325 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, 3, 2, MAX1363_INFO_MASK, |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 326 | d3m2, 7, IIO_ST('s', 10, 16, 0), MAX1363_EV_M), |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 327 | IIO_CHAN_SOFT_TIMESTAMP(8) |
| 328 | }; |
| 329 | |
| 330 | #define MAX1363_CHAN_U(num, address, scan_index, bits) \ |
| 331 | IIO_CHAN(IIO_IN, 0, 1, 0, NULL, num, 0, MAX1363_INFO_MASK, \ |
| 332 | address, scan_index, IIO_ST('u', bits, \ |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 333 | (bits == 8) ? 8 : 16, 0), 0) |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 334 | /* bipolar channel */ |
| 335 | #define MAX1363_CHAN_B(num, num2, address, scan_index, bits) \ |
| 336 | IIO_CHAN(IIO_IN_DIFF, 0, 1, 0, NULL, num, num2, MAX1363_INFO_MASK,\ |
| 337 | address, scan_index, IIO_ST('s', bits, \ |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 338 | (bits == 8) ? 8 : 16, 0), 0) |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 339 | |
| 340 | #define MAX1363_4X_CHANS(bits) { \ |
| 341 | MAX1363_CHAN_U(0, _s0, 0, bits), \ |
| 342 | MAX1363_CHAN_U(1, _s1, 1, bits), \ |
| 343 | MAX1363_CHAN_U(2, _s2, 2, bits), \ |
| 344 | MAX1363_CHAN_U(3, _s3, 3, bits), \ |
| 345 | MAX1363_CHAN_B(0, 1, d0m1, 4, bits), \ |
| 346 | MAX1363_CHAN_B(2, 3, d2m3, 5, bits), \ |
| 347 | MAX1363_CHAN_B(1, 0, d1m0, 6, bits), \ |
| 348 | MAX1363_CHAN_B(3, 2, d3m2, 7, bits), \ |
| 349 | IIO_CHAN_SOFT_TIMESTAMP(8) \ |
| 350 | } |
| 351 | |
| 352 | static struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8); |
| 353 | static struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10); |
| 354 | static struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12); |
| 355 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 356 | /* Appies to max1236, max1237 */ |
| 357 | static const enum max1363_modes max1236_mode_list[] = { |
| 358 | _s0, _s1, _s2, _s3, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 359 | s0to1, s0to2, s0to3, |
| 360 | d0m1, d2m3, d1m0, d3m2, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 361 | d0m1to2m3, d1m0to3m2, |
| 362 | s2to3, |
| 363 | }; |
| 364 | |
| 365 | /* Applies to max1238, max1239 */ |
| 366 | static const enum max1363_modes max1238_mode_list[] = { |
| 367 | _s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, _s8, _s9, _s10, _s11, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 368 | s0to1, s0to2, s0to3, s0to4, s0to5, s0to6, |
| 369 | s0to7, s0to8, s0to9, s0to10, s0to11, |
| 370 | d0m1, d2m3, d4m5, d6m7, d8m9, d10m11, |
| 371 | d1m0, d3m2, d5m4, d7m6, d9m8, d11m10, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 372 | d0m1to2m3, d0m1to4m5, d0m1to6m7, d0m1to8m9, d0m1to10m11, |
| 373 | d1m0to3m2, d1m0to5m4, d1m0to7m6, d1m0to9m8, d1m0to11m10, |
| 374 | s6to7, s6to8, s6to9, s6to10, s6to11, |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 375 | d6m7to8m9, d6m7to10m11, d7m6to9m8, d7m6to11m10, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 376 | }; |
| 377 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 378 | #define MAX1363_12X_CHANS(bits) { \ |
| 379 | MAX1363_CHAN_U(0, _s0, 0, bits), \ |
| 380 | MAX1363_CHAN_U(1, _s1, 1, bits), \ |
| 381 | MAX1363_CHAN_U(2, _s2, 2, bits), \ |
| 382 | MAX1363_CHAN_U(3, _s3, 3, bits), \ |
| 383 | MAX1363_CHAN_U(4, _s4, 4, bits), \ |
| 384 | MAX1363_CHAN_U(5, _s5, 5, bits), \ |
| 385 | MAX1363_CHAN_U(6, _s6, 6, bits), \ |
| 386 | MAX1363_CHAN_U(7, _s7, 7, bits), \ |
| 387 | MAX1363_CHAN_U(8, _s8, 8, bits), \ |
| 388 | MAX1363_CHAN_U(9, _s9, 9, bits), \ |
| 389 | MAX1363_CHAN_U(10, _s10, 10, bits), \ |
| 390 | MAX1363_CHAN_U(11, _s11, 11, bits), \ |
| 391 | MAX1363_CHAN_B(0, 1, d0m1, 12, bits), \ |
| 392 | MAX1363_CHAN_B(2, 3, d2m3, 13, bits), \ |
| 393 | MAX1363_CHAN_B(4, 5, d4m5, 14, bits), \ |
| 394 | MAX1363_CHAN_B(6, 7, d6m7, 15, bits), \ |
| 395 | MAX1363_CHAN_B(8, 9, d8m9, 16, bits), \ |
| 396 | MAX1363_CHAN_B(10, 11, d10m11, 17, bits), \ |
| 397 | MAX1363_CHAN_B(1, 0, d1m0, 18, bits), \ |
| 398 | MAX1363_CHAN_B(3, 2, d3m2, 19, bits), \ |
| 399 | MAX1363_CHAN_B(5, 4, d5m4, 20, bits), \ |
| 400 | MAX1363_CHAN_B(7, 6, d7m6, 21, bits), \ |
| 401 | MAX1363_CHAN_B(9, 8, d9m8, 22, bits), \ |
| 402 | MAX1363_CHAN_B(11, 10, d11m10, 23, bits), \ |
| 403 | IIO_CHAN_SOFT_TIMESTAMP(24) \ |
| 404 | } |
| 405 | static struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8); |
| 406 | static struct iio_chan_spec max1138_channels[] = MAX1363_12X_CHANS(10); |
| 407 | static struct iio_chan_spec max1238_channels[] = MAX1363_12X_CHANS(12); |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 408 | |
| 409 | static const enum max1363_modes max11607_mode_list[] = { |
| 410 | _s0, _s1, _s2, _s3, |
| 411 | s0to1, s0to2, s0to3, |
| 412 | s2to3, |
| 413 | d0m1, d2m3, d1m0, d3m2, |
| 414 | d0m1to2m3, d1m0to3m2, |
| 415 | }; |
| 416 | |
| 417 | static const enum max1363_modes max11608_mode_list[] = { |
| 418 | _s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, |
| 419 | s0to1, s0to2, s0to3, s0to4, s0to5, s0to6, s0to7, |
| 420 | s6to7, |
| 421 | d0m1, d2m3, d4m5, d6m7, |
| 422 | d1m0, d3m2, d5m4, d7m6, |
| 423 | d0m1to2m3, d0m1to4m5, d0m1to6m7, |
| 424 | d1m0to3m2, d1m0to5m4, d1m0to7m6, |
| 425 | }; |
| 426 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 427 | #define MAX1363_8X_CHANS(bits) { \ |
| 428 | MAX1363_CHAN_U(0, _s0, 0, bits), \ |
| 429 | MAX1363_CHAN_U(1, _s1, 1, bits), \ |
| 430 | MAX1363_CHAN_U(2, _s2, 2, bits), \ |
| 431 | MAX1363_CHAN_U(3, _s3, 3, bits), \ |
| 432 | MAX1363_CHAN_U(4, _s4, 4, bits), \ |
| 433 | MAX1363_CHAN_U(5, _s5, 5, bits), \ |
| 434 | MAX1363_CHAN_U(6, _s6, 6, bits), \ |
| 435 | MAX1363_CHAN_U(7, _s7, 7, bits), \ |
| 436 | MAX1363_CHAN_B(0, 1, d0m1, 8, bits), \ |
| 437 | MAX1363_CHAN_B(2, 3, d2m3, 9, bits), \ |
| 438 | MAX1363_CHAN_B(4, 5, d4m5, 10, bits), \ |
| 439 | MAX1363_CHAN_B(6, 7, d6m7, 11, bits), \ |
| 440 | MAX1363_CHAN_B(1, 0, d1m0, 12, bits), \ |
| 441 | MAX1363_CHAN_B(3, 2, d3m2, 13, bits), \ |
| 442 | MAX1363_CHAN_B(5, 4, d5m4, 14, bits), \ |
| 443 | MAX1363_CHAN_B(7, 6, d7m6, 15, bits), \ |
| 444 | IIO_CHAN_SOFT_TIMESTAMP(16) \ |
| 445 | } |
| 446 | static struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8); |
| 447 | static struct iio_chan_spec max11608_channels[] = MAX1363_8X_CHANS(10); |
| 448 | static struct iio_chan_spec max11614_channels[] = MAX1363_8X_CHANS(12); |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 449 | |
Jonathan Cameron | 586d152 | 2011-05-18 14:42:10 +0100 | [diff] [blame] | 450 | static const enum max1363_modes max11644_mode_list[] = { |
| 451 | _s0, _s1, s0to1, d0m1, d1m0, |
| 452 | }; |
| 453 | |
| 454 | #define MAX1363_2X_CHANS(bits) { \ |
| 455 | MAX1363_CHAN_U(0, _s0, 0, bits), \ |
| 456 | MAX1363_CHAN_U(1, _s1, 1, bits), \ |
| 457 | MAX1363_CHAN_B(0, 1, d0m1, 2, bits), \ |
| 458 | MAX1363_CHAN_B(1, 0, d1m0, 3, bits), \ |
| 459 | IIO_CHAN_SOFT_TIMESTAMP(4) \ |
| 460 | } |
| 461 | |
| 462 | static struct iio_chan_spec max11646_channels[] = MAX1363_2X_CHANS(10); |
| 463 | static struct iio_chan_spec max11644_channels[] = MAX1363_2X_CHANS(12); |
| 464 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 465 | enum { max1361, |
| 466 | max1362, |
| 467 | max1363, |
| 468 | max1364, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 469 | max1036, |
| 470 | max1037, |
| 471 | max1038, |
| 472 | max1039, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 473 | max1136, |
| 474 | max1137, |
| 475 | max1138, |
| 476 | max1139, |
| 477 | max1236, |
| 478 | max1237, |
| 479 | max1238, |
| 480 | max1239, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 481 | max11600, |
| 482 | max11601, |
| 483 | max11602, |
| 484 | max11603, |
| 485 | max11604, |
| 486 | max11605, |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 487 | max11606, |
| 488 | max11607, |
| 489 | max11608, |
| 490 | max11609, |
| 491 | max11610, |
| 492 | max11611, |
| 493 | max11612, |
| 494 | max11613, |
| 495 | max11614, |
| 496 | max11615, |
| 497 | max11616, |
| 498 | max11617, |
Jonathan Cameron | 586d152 | 2011-05-18 14:42:10 +0100 | [diff] [blame] | 499 | max11644, |
| 500 | max11645, |
| 501 | max11646, |
| 502 | max11647 |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 503 | }; |
| 504 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 505 | static const int max1363_monitor_speeds[] = { 133000, 665000, 33300, 16600, |
| 506 | 8300, 4200, 2000, 1000 }; |
| 507 | |
| 508 | static ssize_t max1363_monitor_show_freq(struct device *dev, |
| 509 | struct device_attribute *attr, |
| 510 | char *buf) |
| 511 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 512 | struct max1363_state *st = iio_priv(dev_get_drvdata(dev)); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 513 | return sprintf(buf, "%d\n", max1363_monitor_speeds[st->monitor_speed]); |
| 514 | } |
| 515 | |
| 516 | static ssize_t max1363_monitor_store_freq(struct device *dev, |
| 517 | struct device_attribute *attr, |
| 518 | const char *buf, |
| 519 | size_t len) |
| 520 | { |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 521 | struct iio_dev *indio_dev = dev_get_drvdata(dev); |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 522 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 523 | int i, ret; |
| 524 | unsigned long val; |
| 525 | bool found = false; |
| 526 | |
| 527 | ret = strict_strtoul(buf, 10, &val); |
| 528 | if (ret) |
| 529 | return -EINVAL; |
| 530 | for (i = 0; i < ARRAY_SIZE(max1363_monitor_speeds); i++) |
| 531 | if (val == max1363_monitor_speeds[i]) { |
| 532 | found = true; |
| 533 | break; |
| 534 | } |
| 535 | if (!found) |
| 536 | return -EINVAL; |
| 537 | |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 538 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 539 | st->monitor_speed = i; |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 540 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 541 | |
| 542 | return 0; |
| 543 | } |
| 544 | |
| 545 | static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR, |
| 546 | max1363_monitor_show_freq, |
| 547 | max1363_monitor_store_freq); |
| 548 | |
| 549 | static IIO_CONST_ATTR(sampling_frequency_available, |
| 550 | "133000 665000 33300 16600 8300 4200 2000 1000"); |
| 551 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 552 | static int max1363_read_thresh(struct iio_dev *indio_dev, |
| 553 | int event_code, |
| 554 | int *val) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 555 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 556 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 557 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) |
| 558 | *val = st->thresh_low[IIO_EVENT_CODE_EXTRACT_NUM(event_code)]; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 559 | else |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 560 | *val = st->thresh_high[IIO_EVENT_CODE_EXTRACT_NUM(event_code)]; |
| 561 | return 0; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 562 | } |
| 563 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 564 | static int max1363_write_thresh(struct iio_dev *indio_dev, |
| 565 | int event_code, |
| 566 | int val) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 567 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 568 | struct max1363_state *st = iio_priv(indio_dev); |
| 569 | /* make it handle signed correctly as well */ |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 570 | switch (st->chip_info->bits) { |
| 571 | case 10: |
| 572 | if (val > 0x3FF) |
| 573 | return -EINVAL; |
| 574 | break; |
| 575 | case 12: |
| 576 | if (val > 0xFFF) |
| 577 | return -EINVAL; |
| 578 | break; |
| 579 | } |
| 580 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 581 | switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) { |
| 582 | case IIO_EV_DIR_FALLING: |
| 583 | st->thresh_low[IIO_EVENT_CODE_EXTRACT_NUM(event_code)] = val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 584 | break; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 585 | case IIO_EV_DIR_RISING: |
| 586 | st->thresh_high[IIO_EVENT_CODE_EXTRACT_NUM(event_code)] = val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 587 | break; |
| 588 | } |
| 589 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 590 | return 0; |
| 591 | } |
| 592 | |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 593 | static const int max1363_event_codes[] = { |
Jonathan Cameron | cdf3870 | 2011-08-12 17:08:43 +0100 | [diff] [blame^] | 594 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 0, |
| 595 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 596 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 1, |
| 597 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 598 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 2, |
| 599 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 600 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 3, |
| 601 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 602 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 0, |
| 603 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 604 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 1, |
| 605 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 606 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 2, |
| 607 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 608 | IIO_UNMOD_EVENT_CODE(IIO_EV_CLASS_IN, 3, |
| 609 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 610 | }; |
| 611 | |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 612 | static irqreturn_t max1363_event_handler(int irq, void *private) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 613 | { |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 614 | struct iio_dev *indio_dev = private; |
| 615 | struct max1363_state *st = iio_priv(indio_dev); |
| 616 | s64 timestamp = iio_get_time_ns(); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 617 | unsigned long mask, loc; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 618 | u8 rx; |
| 619 | u8 tx[2] = { st->setupbyte, |
| 620 | MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0 }; |
| 621 | |
| 622 | i2c_master_recv(st->client, &rx, 1); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 623 | mask = rx; |
| 624 | for_each_set_bit(loc, &mask, 8) |
| 625 | iio_push_event(indio_dev, 0, max1363_event_codes[loc], |
| 626 | timestamp); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 627 | i2c_master_send(st->client, tx, 2); |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 628 | |
| 629 | return IRQ_HANDLED; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 630 | } |
| 631 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 632 | static int max1363_read_event_config(struct iio_dev *indio_dev, |
| 633 | int event_code) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 634 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 635 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 636 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 637 | int val; |
| 638 | int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code); |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 639 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 640 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) |
| 641 | val = (1 << number) & st->mask_low; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 642 | else |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 643 | val = (1 << number) & st->mask_high; |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 644 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 645 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 646 | return val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | static int max1363_monitor_mode_update(struct max1363_state *st, int enabled) |
| 650 | { |
| 651 | u8 *tx_buf; |
| 652 | int ret, i = 3, j; |
| 653 | unsigned long numelements; |
| 654 | int len; |
| 655 | long modemask; |
| 656 | |
| 657 | if (!enabled) { |
| 658 | /* transition to ring capture is not currently supported */ |
| 659 | st->setupbyte &= ~MAX1363_SETUP_MONITOR_SETUP; |
| 660 | st->configbyte &= ~MAX1363_SCAN_MASK; |
| 661 | st->monitor_on = false; |
| 662 | return max1363_write_basic_config(st->client, |
| 663 | st->setupbyte, |
| 664 | st->configbyte); |
| 665 | } |
| 666 | |
| 667 | /* Ensure we are in the relevant mode */ |
| 668 | st->setupbyte |= MAX1363_SETUP_MONITOR_SETUP; |
| 669 | st->configbyte &= ~(MAX1363_CHANNEL_SEL_MASK |
| 670 | | MAX1363_SCAN_MASK |
| 671 | | MAX1363_SE_DE_MASK); |
| 672 | st->configbyte |= MAX1363_CONFIG_SCAN_MONITOR_MODE; |
| 673 | if ((st->mask_low | st->mask_high) & 0x0F) { |
| 674 | st->configbyte |= max1363_mode_table[s0to3].conf; |
| 675 | modemask = max1363_mode_table[s0to3].modemask; |
| 676 | } else if ((st->mask_low | st->mask_high) & 0x30) { |
| 677 | st->configbyte |= max1363_mode_table[d0m1to2m3].conf; |
| 678 | modemask = max1363_mode_table[d0m1to2m3].modemask; |
| 679 | } else { |
| 680 | st->configbyte |= max1363_mode_table[d1m0to3m2].conf; |
| 681 | modemask = max1363_mode_table[d1m0to3m2].modemask; |
| 682 | } |
| 683 | numelements = hweight_long(modemask); |
| 684 | len = 3 * numelements + 3; |
| 685 | tx_buf = kmalloc(len, GFP_KERNEL); |
| 686 | if (!tx_buf) { |
| 687 | ret = -ENOMEM; |
| 688 | goto error_ret; |
| 689 | } |
| 690 | tx_buf[0] = st->configbyte; |
| 691 | tx_buf[1] = st->setupbyte; |
| 692 | tx_buf[2] = (st->monitor_speed << 1); |
| 693 | |
| 694 | /* |
| 695 | * So we need to do yet another bit of nefarious scan mode |
| 696 | * setup to match what we need. |
| 697 | */ |
| 698 | for (j = 0; j < 8; j++) |
| 699 | if (modemask & (1 << j)) { |
| 700 | /* Establish the mode is in the scan */ |
| 701 | if (st->mask_low & (1 << j)) { |
| 702 | tx_buf[i] = (st->thresh_low[j] >> 4) & 0xFF; |
| 703 | tx_buf[i + 1] = (st->thresh_low[j] << 4) & 0xF0; |
| 704 | } else if (j < 4) { |
| 705 | tx_buf[i] = 0; |
| 706 | tx_buf[i + 1] = 0; |
| 707 | } else { |
| 708 | tx_buf[i] = 0x80; |
| 709 | tx_buf[i + 1] = 0; |
| 710 | } |
| 711 | if (st->mask_high & (1 << j)) { |
| 712 | tx_buf[i + 1] |= |
| 713 | (st->thresh_high[j] >> 8) & 0x0F; |
| 714 | tx_buf[i + 2] = st->thresh_high[j] & 0xFF; |
| 715 | } else if (j < 4) { |
| 716 | tx_buf[i + 1] |= 0x0F; |
| 717 | tx_buf[i + 2] = 0xFF; |
| 718 | } else { |
| 719 | tx_buf[i + 1] |= 0x07; |
| 720 | tx_buf[i + 2] = 0xFF; |
| 721 | } |
| 722 | i += 3; |
| 723 | } |
| 724 | |
| 725 | |
| 726 | ret = i2c_master_send(st->client, tx_buf, len); |
| 727 | if (ret < 0) |
| 728 | goto error_ret; |
| 729 | if (ret != len) { |
| 730 | ret = -EIO; |
| 731 | goto error_ret; |
| 732 | } |
| 733 | |
| 734 | /* |
| 735 | * Now that we hopefully have sensible thresholds in place it is |
| 736 | * time to turn the interrupts on. |
| 737 | * It is unclear from the data sheet if this should be necessary |
| 738 | * (i.e. whether monitor mode setup is atomic) but it appears to |
| 739 | * be in practice. |
| 740 | */ |
| 741 | tx_buf[0] = st->setupbyte; |
| 742 | tx_buf[1] = MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0; |
| 743 | ret = i2c_master_send(st->client, tx_buf, 2); |
| 744 | if (ret < 0) |
| 745 | goto error_ret; |
| 746 | if (ret != 2) { |
| 747 | ret = -EIO; |
| 748 | goto error_ret; |
| 749 | } |
| 750 | ret = 0; |
| 751 | st->monitor_on = true; |
| 752 | error_ret: |
| 753 | |
| 754 | kfree(tx_buf); |
| 755 | |
| 756 | return ret; |
| 757 | } |
| 758 | |
| 759 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 760 | * To keep this manageable we always use one of 3 scan modes. |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 761 | * Scan 0...3, 0-1,2-3 and 1-0,3-2 |
| 762 | */ |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 763 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 764 | static inline int __max1363_check_event_mask(int thismask, int checkmask) |
| 765 | { |
| 766 | int ret = 0; |
| 767 | /* Is it unipolar */ |
| 768 | if (thismask < 4) { |
| 769 | if (checkmask & ~0x0F) { |
| 770 | ret = -EBUSY; |
| 771 | goto error_ret; |
| 772 | } |
| 773 | } else if (thismask < 6) { |
| 774 | if (checkmask & ~0x30) { |
| 775 | ret = -EBUSY; |
| 776 | goto error_ret; |
| 777 | } |
| 778 | } else if (checkmask & ~0xC0) |
| 779 | ret = -EBUSY; |
| 780 | error_ret: |
| 781 | return ret; |
| 782 | } |
| 783 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 784 | static int max1363_write_event_config(struct iio_dev *indio_dev, |
| 785 | int event_code, |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 786 | int state) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 787 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 788 | int ret = 0; |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 789 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 790 | u16 unifiedmask; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 791 | int number = IIO_EVENT_CODE_EXTRACT_NUM(event_code); |
| 792 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 793 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 794 | unifiedmask = st->mask_low | st->mask_high; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 795 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) { |
| 796 | |
| 797 | if (state == 0) |
| 798 | st->mask_low &= ~(1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 799 | else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 800 | ret = __max1363_check_event_mask((1 << number), |
| 801 | unifiedmask); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 802 | if (ret) |
| 803 | goto error_ret; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 804 | st->mask_low |= (1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 805 | } |
| 806 | } else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 807 | if (state == 0) |
| 808 | st->mask_high &= ~(1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 809 | else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 810 | ret = __max1363_check_event_mask((1 << number), |
| 811 | unifiedmask); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 812 | if (ret) |
| 813 | goto error_ret; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 814 | st->mask_high |= (1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 815 | } |
| 816 | } |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 817 | |
| 818 | max1363_monitor_mode_update(st, !!(st->mask_high | st->mask_low)); |
| 819 | error_ret: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 820 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 821 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 822 | return ret; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 823 | } |
| 824 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 825 | /* |
| 826 | * As with scan_elements, only certain sets of these can |
| 827 | * be combined. |
| 828 | */ |
| 829 | static struct attribute *max1363_event_attributes[] = { |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 830 | &iio_dev_attr_sampling_frequency.dev_attr.attr, |
| 831 | &iio_const_attr_sampling_frequency_available.dev_attr.attr, |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 832 | NULL, |
| 833 | }; |
| 834 | |
| 835 | static struct attribute_group max1363_event_attribute_group = { |
| 836 | .attrs = max1363_event_attributes, |
| 837 | }; |
| 838 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 839 | #define MAX1363_EVENT_FUNCS \ |
| 840 | |
| 841 | |
| 842 | static const struct iio_info max1238_info = { |
| 843 | .read_raw = &max1363_read_raw, |
| 844 | .driver_module = THIS_MODULE, |
| 845 | }; |
| 846 | |
| 847 | static const struct iio_info max1363_info = { |
| 848 | .read_event_value = &max1363_read_thresh, |
| 849 | .write_event_value = &max1363_write_thresh, |
| 850 | .read_event_config = &max1363_read_event_config, |
| 851 | .write_event_config = &max1363_write_event_config, |
| 852 | .read_raw = &max1363_read_raw, |
| 853 | .driver_module = THIS_MODULE, |
| 854 | .num_interrupt_lines = 1, |
| 855 | .event_attrs = &max1363_event_attribute_group, |
| 856 | }; |
| 857 | |
| 858 | /* max1363 and max1368 tested - rest from data sheet */ |
| 859 | static const struct max1363_chip_info max1363_chip_info_tbl[] = { |
| 860 | [max1361] = { |
| 861 | .bits = 10, |
| 862 | .int_vref_mv = 2048, |
| 863 | .mode_list = max1363_mode_list, |
| 864 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 865 | .default_mode = s0to3, |
| 866 | .channels = max1361_channels, |
| 867 | .num_channels = ARRAY_SIZE(max1361_channels), |
| 868 | .info = &max1363_info, |
| 869 | }, |
| 870 | [max1362] = { |
| 871 | .bits = 10, |
| 872 | .int_vref_mv = 4096, |
| 873 | .mode_list = max1363_mode_list, |
| 874 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 875 | .default_mode = s0to3, |
| 876 | .channels = max1361_channels, |
| 877 | .num_channels = ARRAY_SIZE(max1361_channels), |
| 878 | .info = &max1363_info, |
| 879 | }, |
| 880 | [max1363] = { |
| 881 | .bits = 12, |
| 882 | .int_vref_mv = 2048, |
| 883 | .mode_list = max1363_mode_list, |
| 884 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 885 | .default_mode = s0to3, |
| 886 | .channels = max1363_channels, |
| 887 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 888 | .info = &max1363_info, |
| 889 | }, |
| 890 | [max1364] = { |
| 891 | .bits = 12, |
| 892 | .int_vref_mv = 4096, |
| 893 | .mode_list = max1363_mode_list, |
| 894 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 895 | .default_mode = s0to3, |
| 896 | .channels = max1363_channels, |
| 897 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 898 | .info = &max1363_info, |
| 899 | }, |
| 900 | [max1036] = { |
| 901 | .bits = 8, |
| 902 | .int_vref_mv = 4096, |
| 903 | .mode_list = max1236_mode_list, |
| 904 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 905 | .default_mode = s0to3, |
| 906 | .info = &max1238_info, |
| 907 | .channels = max1036_channels, |
| 908 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 909 | }, |
| 910 | [max1037] = { |
| 911 | .bits = 8, |
| 912 | .int_vref_mv = 2048, |
| 913 | .mode_list = max1236_mode_list, |
| 914 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 915 | .default_mode = s0to3, |
| 916 | .info = &max1238_info, |
| 917 | .channels = max1036_channels, |
| 918 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 919 | }, |
| 920 | [max1038] = { |
| 921 | .bits = 8, |
| 922 | .int_vref_mv = 4096, |
| 923 | .mode_list = max1238_mode_list, |
| 924 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 925 | .default_mode = s0to11, |
| 926 | .info = &max1238_info, |
| 927 | .channels = max1038_channels, |
| 928 | .num_channels = ARRAY_SIZE(max1038_channels), |
| 929 | }, |
| 930 | [max1039] = { |
| 931 | .bits = 8, |
| 932 | .int_vref_mv = 2048, |
| 933 | .mode_list = max1238_mode_list, |
| 934 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 935 | .default_mode = s0to11, |
| 936 | .info = &max1238_info, |
| 937 | .channels = max1038_channels, |
| 938 | .num_channels = ARRAY_SIZE(max1038_channels), |
| 939 | }, |
| 940 | [max1136] = { |
| 941 | .bits = 10, |
| 942 | .int_vref_mv = 4096, |
| 943 | .mode_list = max1236_mode_list, |
| 944 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 945 | .default_mode = s0to3, |
| 946 | .info = &max1238_info, |
| 947 | .channels = max1136_channels, |
| 948 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 949 | }, |
| 950 | [max1137] = { |
| 951 | .bits = 10, |
| 952 | .int_vref_mv = 2048, |
| 953 | .mode_list = max1236_mode_list, |
| 954 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 955 | .default_mode = s0to3, |
| 956 | .info = &max1238_info, |
| 957 | .channels = max1136_channels, |
| 958 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 959 | }, |
| 960 | [max1138] = { |
| 961 | .bits = 10, |
| 962 | .int_vref_mv = 4096, |
| 963 | .mode_list = max1238_mode_list, |
| 964 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 965 | .default_mode = s0to11, |
| 966 | .info = &max1238_info, |
| 967 | .channels = max1138_channels, |
| 968 | .num_channels = ARRAY_SIZE(max1138_channels), |
| 969 | }, |
| 970 | [max1139] = { |
| 971 | .bits = 10, |
| 972 | .int_vref_mv = 2048, |
| 973 | .mode_list = max1238_mode_list, |
| 974 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 975 | .default_mode = s0to11, |
| 976 | .info = &max1238_info, |
| 977 | .channels = max1138_channels, |
| 978 | .num_channels = ARRAY_SIZE(max1138_channels), |
| 979 | }, |
| 980 | [max1236] = { |
| 981 | .bits = 12, |
| 982 | .int_vref_mv = 4096, |
| 983 | .mode_list = max1236_mode_list, |
| 984 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 985 | .default_mode = s0to3, |
| 986 | .info = &max1238_info, |
| 987 | .channels = max1236_channels, |
| 988 | .num_channels = ARRAY_SIZE(max1236_channels), |
| 989 | }, |
| 990 | [max1237] = { |
| 991 | .bits = 12, |
| 992 | .int_vref_mv = 2048, |
| 993 | .mode_list = max1236_mode_list, |
| 994 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 995 | .default_mode = s0to3, |
| 996 | .info = &max1238_info, |
| 997 | .channels = max1236_channels, |
| 998 | .num_channels = ARRAY_SIZE(max1236_channels), |
| 999 | }, |
| 1000 | [max1238] = { |
| 1001 | .bits = 12, |
| 1002 | .int_vref_mv = 4096, |
| 1003 | .mode_list = max1238_mode_list, |
| 1004 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1005 | .default_mode = s0to11, |
| 1006 | .info = &max1238_info, |
| 1007 | .channels = max1238_channels, |
| 1008 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1009 | }, |
| 1010 | [max1239] = { |
| 1011 | .bits = 12, |
| 1012 | .int_vref_mv = 2048, |
| 1013 | .mode_list = max1238_mode_list, |
| 1014 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1015 | .default_mode = s0to11, |
| 1016 | .info = &max1238_info, |
| 1017 | .channels = max1238_channels, |
| 1018 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1019 | }, |
| 1020 | [max11600] = { |
| 1021 | .bits = 8, |
| 1022 | .int_vref_mv = 4096, |
| 1023 | .mode_list = max11607_mode_list, |
| 1024 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1025 | .default_mode = s0to3, |
| 1026 | .info = &max1238_info, |
| 1027 | .channels = max1036_channels, |
| 1028 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 1029 | }, |
| 1030 | [max11601] = { |
| 1031 | .bits = 8, |
| 1032 | .int_vref_mv = 2048, |
| 1033 | .mode_list = max11607_mode_list, |
| 1034 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1035 | .default_mode = s0to3, |
| 1036 | .info = &max1238_info, |
| 1037 | .channels = max1036_channels, |
| 1038 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 1039 | }, |
| 1040 | [max11602] = { |
| 1041 | .bits = 8, |
| 1042 | .int_vref_mv = 4096, |
| 1043 | .mode_list = max11608_mode_list, |
| 1044 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1045 | .default_mode = s0to7, |
| 1046 | .info = &max1238_info, |
| 1047 | .channels = max11602_channels, |
| 1048 | .num_channels = ARRAY_SIZE(max11602_channels), |
| 1049 | }, |
| 1050 | [max11603] = { |
| 1051 | .bits = 8, |
| 1052 | .int_vref_mv = 2048, |
| 1053 | .mode_list = max11608_mode_list, |
| 1054 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1055 | .default_mode = s0to7, |
| 1056 | .info = &max1238_info, |
| 1057 | .channels = max11602_channels, |
| 1058 | .num_channels = ARRAY_SIZE(max11602_channels), |
| 1059 | }, |
| 1060 | [max11604] = { |
| 1061 | .bits = 8, |
| 1062 | .int_vref_mv = 4098, |
| 1063 | .mode_list = max1238_mode_list, |
| 1064 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1065 | .default_mode = s0to11, |
| 1066 | .info = &max1238_info, |
| 1067 | .channels = max1238_channels, |
| 1068 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1069 | }, |
| 1070 | [max11605] = { |
| 1071 | .bits = 8, |
| 1072 | .int_vref_mv = 2048, |
| 1073 | .mode_list = max1238_mode_list, |
| 1074 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1075 | .default_mode = s0to11, |
| 1076 | .info = &max1238_info, |
| 1077 | .channels = max1238_channels, |
| 1078 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1079 | }, |
| 1080 | [max11606] = { |
| 1081 | .bits = 10, |
| 1082 | .int_vref_mv = 4096, |
| 1083 | .mode_list = max11607_mode_list, |
| 1084 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1085 | .default_mode = s0to3, |
| 1086 | .info = &max1238_info, |
| 1087 | .channels = max1136_channels, |
| 1088 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 1089 | }, |
| 1090 | [max11607] = { |
| 1091 | .bits = 10, |
| 1092 | .int_vref_mv = 2048, |
| 1093 | .mode_list = max11607_mode_list, |
| 1094 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1095 | .default_mode = s0to3, |
| 1096 | .info = &max1238_info, |
| 1097 | .channels = max1136_channels, |
| 1098 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 1099 | }, |
| 1100 | [max11608] = { |
| 1101 | .bits = 10, |
| 1102 | .int_vref_mv = 4096, |
| 1103 | .mode_list = max11608_mode_list, |
| 1104 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1105 | .default_mode = s0to7, |
| 1106 | .info = &max1238_info, |
| 1107 | .channels = max11608_channels, |
| 1108 | .num_channels = ARRAY_SIZE(max11608_channels), |
| 1109 | }, |
| 1110 | [max11609] = { |
| 1111 | .bits = 10, |
| 1112 | .int_vref_mv = 2048, |
| 1113 | .mode_list = max11608_mode_list, |
| 1114 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1115 | .default_mode = s0to7, |
| 1116 | .info = &max1238_info, |
| 1117 | .channels = max11608_channels, |
| 1118 | .num_channels = ARRAY_SIZE(max11608_channels), |
| 1119 | }, |
| 1120 | [max11610] = { |
| 1121 | .bits = 10, |
| 1122 | .int_vref_mv = 4098, |
| 1123 | .mode_list = max1238_mode_list, |
| 1124 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1125 | .default_mode = s0to11, |
| 1126 | .info = &max1238_info, |
| 1127 | .channels = max1238_channels, |
| 1128 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1129 | }, |
| 1130 | [max11611] = { |
| 1131 | .bits = 10, |
| 1132 | .int_vref_mv = 2048, |
| 1133 | .mode_list = max1238_mode_list, |
| 1134 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1135 | .default_mode = s0to11, |
| 1136 | .info = &max1238_info, |
| 1137 | .channels = max1238_channels, |
| 1138 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1139 | }, |
| 1140 | [max11612] = { |
| 1141 | .bits = 12, |
| 1142 | .int_vref_mv = 4096, |
| 1143 | .mode_list = max11607_mode_list, |
| 1144 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1145 | .default_mode = s0to3, |
| 1146 | .info = &max1238_info, |
| 1147 | .channels = max1363_channels, |
| 1148 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 1149 | }, |
| 1150 | [max11613] = { |
| 1151 | .bits = 12, |
| 1152 | .int_vref_mv = 2048, |
| 1153 | .mode_list = max11607_mode_list, |
| 1154 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1155 | .default_mode = s0to3, |
| 1156 | .info = &max1238_info, |
| 1157 | .channels = max1363_channels, |
| 1158 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 1159 | }, |
| 1160 | [max11614] = { |
| 1161 | .bits = 12, |
| 1162 | .int_vref_mv = 4096, |
| 1163 | .mode_list = max11608_mode_list, |
| 1164 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1165 | .default_mode = s0to7, |
| 1166 | .info = &max1238_info, |
| 1167 | .channels = max11614_channels, |
| 1168 | .num_channels = ARRAY_SIZE(max11614_channels), |
| 1169 | }, |
| 1170 | [max11615] = { |
| 1171 | .bits = 12, |
| 1172 | .int_vref_mv = 2048, |
| 1173 | .mode_list = max11608_mode_list, |
| 1174 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1175 | .default_mode = s0to7, |
| 1176 | .info = &max1238_info, |
| 1177 | .channels = max11614_channels, |
| 1178 | .num_channels = ARRAY_SIZE(max11614_channels), |
| 1179 | }, |
| 1180 | [max11616] = { |
| 1181 | .bits = 12, |
| 1182 | .int_vref_mv = 4098, |
| 1183 | .mode_list = max1238_mode_list, |
| 1184 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1185 | .default_mode = s0to11, |
| 1186 | .info = &max1238_info, |
| 1187 | .channels = max1238_channels, |
| 1188 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1189 | }, |
| 1190 | [max11617] = { |
| 1191 | .bits = 12, |
| 1192 | .int_vref_mv = 2048, |
| 1193 | .mode_list = max1238_mode_list, |
| 1194 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1195 | .default_mode = s0to11, |
| 1196 | .info = &max1238_info, |
| 1197 | .channels = max1238_channels, |
| 1198 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1199 | }, |
| 1200 | [max11644] = { |
| 1201 | .bits = 12, |
| 1202 | .int_vref_mv = 2048, |
| 1203 | .mode_list = max11644_mode_list, |
| 1204 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1205 | .default_mode = s0to1, |
| 1206 | .info = &max1238_info, |
| 1207 | .channels = max11644_channels, |
| 1208 | .num_channels = ARRAY_SIZE(max11644_channels), |
| 1209 | }, |
| 1210 | [max11645] = { |
| 1211 | .bits = 12, |
| 1212 | .int_vref_mv = 4096, |
| 1213 | .mode_list = max11644_mode_list, |
| 1214 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1215 | .default_mode = s0to1, |
| 1216 | .info = &max1238_info, |
| 1217 | .channels = max11644_channels, |
| 1218 | .num_channels = ARRAY_SIZE(max11644_channels), |
| 1219 | }, |
| 1220 | [max11646] = { |
| 1221 | .bits = 10, |
| 1222 | .int_vref_mv = 2048, |
| 1223 | .mode_list = max11644_mode_list, |
| 1224 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1225 | .default_mode = s0to1, |
| 1226 | .info = &max1238_info, |
| 1227 | .channels = max11646_channels, |
| 1228 | .num_channels = ARRAY_SIZE(max11646_channels), |
| 1229 | }, |
| 1230 | [max11647] = { |
| 1231 | .bits = 10, |
| 1232 | .int_vref_mv = 4096, |
| 1233 | .mode_list = max11644_mode_list, |
| 1234 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1235 | .default_mode = s0to1, |
| 1236 | .info = &max1238_info, |
| 1237 | .channels = max11646_channels, |
| 1238 | .num_channels = ARRAY_SIZE(max11646_channels), |
| 1239 | }, |
| 1240 | }; |
| 1241 | |
| 1242 | |
| 1243 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1244 | static int max1363_initial_setup(struct max1363_state *st) |
| 1245 | { |
| 1246 | st->setupbyte = MAX1363_SETUP_AIN3_IS_AIN3_REF_IS_VDD |
| 1247 | | MAX1363_SETUP_POWER_UP_INT_REF |
| 1248 | | MAX1363_SETUP_INT_CLOCK |
| 1249 | | MAX1363_SETUP_UNIPOLAR |
| 1250 | | MAX1363_SETUP_NORESET; |
| 1251 | |
| 1252 | /* Set scan mode writes the config anyway so wait until then*/ |
| 1253 | st->setupbyte = MAX1363_SETUP_BYTE(st->setupbyte); |
| 1254 | st->current_mode = &max1363_mode_table[st->chip_info->default_mode]; |
| 1255 | st->configbyte = MAX1363_CONFIG_BYTE(st->configbyte); |
| 1256 | |
| 1257 | return max1363_set_scan_mode(st); |
| 1258 | } |
| 1259 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1260 | static int __devinit max1363_probe(struct i2c_client *client, |
| 1261 | const struct i2c_device_id *id) |
| 1262 | { |
| 1263 | int ret, i, regdone = 0; |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1264 | struct max1363_state *st; |
| 1265 | struct iio_dev *indio_dev; |
| 1266 | struct regulator *reg; |
| 1267 | |
| 1268 | reg = regulator_get(&client->dev, "vcc"); |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1269 | if (IS_ERR(reg)) { |
| 1270 | ret = PTR_ERR(reg); |
| 1271 | goto error_out; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1272 | } |
| 1273 | |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1274 | ret = regulator_enable(reg); |
| 1275 | if (ret) |
| 1276 | goto error_put_reg; |
| 1277 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1278 | indio_dev = iio_allocate_device(sizeof(struct max1363_state)); |
| 1279 | if (indio_dev == NULL) { |
| 1280 | ret = -ENOMEM; |
| 1281 | goto error_disable_reg; |
| 1282 | } |
| 1283 | st = iio_priv(indio_dev); |
| 1284 | st->reg = reg; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1285 | /* this is only used for device removal purposes */ |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1286 | i2c_set_clientdata(client, indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1287 | |
Jonathan Cameron | 962a4cc | 2010-06-26 12:54:13 +0100 | [diff] [blame] | 1288 | st->chip_info = &max1363_chip_info_tbl[id->driver_data]; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1289 | st->client = client; |
| 1290 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1291 | indio_dev->available_scan_masks |
| 1292 | = kzalloc(sizeof(*indio_dev->available_scan_masks)* |
Greg Kroah-Hartman | f03de82 | 2010-05-04 22:26:19 -0700 | [diff] [blame] | 1293 | (st->chip_info->num_modes + 1), GFP_KERNEL); |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1294 | if (!indio_dev->available_scan_masks) { |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1295 | ret = -ENOMEM; |
| 1296 | goto error_free_device; |
| 1297 | } |
| 1298 | |
| 1299 | for (i = 0; i < st->chip_info->num_modes; i++) |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1300 | indio_dev->available_scan_masks[i] = |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1301 | max1363_mode_table[st->chip_info->mode_list[i]] |
| 1302 | .modemask; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1303 | /* Estabilish that the iio_dev is a child of the i2c device */ |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1304 | indio_dev->dev.parent = &client->dev; |
Jonathan Cameron | 845bd12 | 2011-05-18 14:41:44 +0100 | [diff] [blame] | 1305 | indio_dev->name = id->name; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1306 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1307 | indio_dev->info = st->chip_info->info; |
| 1308 | indio_dev->modes = INDIO_DIRECT_MODE; |
Jonathan Cameron | cd03801 | 2011-08-12 16:55:29 +0100 | [diff] [blame] | 1309 | indio_dev->channels = st->chip_info->channels; |
| 1310 | indio_dev->num_channels = st->chip_info->num_channels; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1311 | ret = max1363_initial_setup(st); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 1312 | if (ret < 0) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1313 | goto error_free_available_scan_masks; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1314 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1315 | ret = max1363_register_ring_funcs_and_init(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1316 | if (ret) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1317 | goto error_free_available_scan_masks; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1318 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1319 | ret = iio_device_register(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1320 | if (ret) |
| 1321 | goto error_cleanup_ring; |
| 1322 | regdone = 1; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 1323 | ret = iio_ring_buffer_register_ex(indio_dev->ring, 0, |
| 1324 | st->chip_info->channels, |
| 1325 | st->chip_info->num_channels); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1326 | if (ret) |
| 1327 | goto error_cleanup_ring; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1328 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1329 | if (client->irq) { |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 1330 | ret = request_threaded_irq(st->client->irq, |
| 1331 | NULL, |
| 1332 | &max1363_event_handler, |
| 1333 | IRQF_TRIGGER_RISING | IRQF_ONESHOT, |
| 1334 | "max1363_event", |
| 1335 | indio_dev); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 1336 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1337 | if (ret) |
| 1338 | goto error_uninit_ring; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1339 | } |
| 1340 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1341 | return 0; |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1342 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1343 | error_uninit_ring: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1344 | iio_ring_buffer_unregister(indio_dev->ring); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1345 | error_cleanup_ring: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1346 | max1363_ring_cleanup(indio_dev); |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1347 | error_free_available_scan_masks: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1348 | kfree(indio_dev->available_scan_masks); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1349 | error_free_device: |
| 1350 | if (!regdone) |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1351 | iio_free_device(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1352 | else |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1353 | iio_device_unregister(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1354 | error_disable_reg: |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1355 | regulator_disable(reg); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1356 | error_put_reg: |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1357 | regulator_put(reg); |
| 1358 | error_out: |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1359 | return ret; |
| 1360 | } |
| 1361 | |
| 1362 | static int max1363_remove(struct i2c_client *client) |
| 1363 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1364 | struct iio_dev *indio_dev = i2c_get_clientdata(client); |
| 1365 | struct max1363_state *st = iio_priv(indio_dev); |
| 1366 | struct regulator *reg = st->reg; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1367 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1368 | if (client->irq) |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 1369 | free_irq(st->client->irq, indio_dev); |
Jonathan Cameron | 2662051 | 2010-07-11 16:39:14 +0100 | [diff] [blame] | 1370 | iio_ring_buffer_unregister(indio_dev->ring); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1371 | max1363_ring_cleanup(indio_dev); |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1372 | kfree(indio_dev->available_scan_masks); |
| 1373 | if (!IS_ERR(reg)) { |
| 1374 | regulator_disable(reg); |
| 1375 | regulator_put(reg); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1376 | } |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1377 | iio_device_unregister(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1378 | |
| 1379 | return 0; |
| 1380 | } |
| 1381 | |
| 1382 | static const struct i2c_device_id max1363_id[] = { |
| 1383 | { "max1361", max1361 }, |
| 1384 | { "max1362", max1362 }, |
| 1385 | { "max1363", max1363 }, |
| 1386 | { "max1364", max1364 }, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 1387 | { "max1036", max1036 }, |
| 1388 | { "max1037", max1037 }, |
| 1389 | { "max1038", max1038 }, |
| 1390 | { "max1039", max1039 }, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1391 | { "max1136", max1136 }, |
| 1392 | { "max1137", max1137 }, |
| 1393 | { "max1138", max1138 }, |
| 1394 | { "max1139", max1139 }, |
| 1395 | { "max1236", max1236 }, |
| 1396 | { "max1237", max1237 }, |
| 1397 | { "max1238", max1238 }, |
| 1398 | { "max1239", max1239 }, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 1399 | { "max11600", max11600 }, |
| 1400 | { "max11601", max11601 }, |
| 1401 | { "max11602", max11602 }, |
| 1402 | { "max11603", max11603 }, |
| 1403 | { "max11604", max11604 }, |
| 1404 | { "max11605", max11605 }, |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 1405 | { "max11606", max11606 }, |
| 1406 | { "max11607", max11607 }, |
| 1407 | { "max11608", max11608 }, |
| 1408 | { "max11609", max11609 }, |
| 1409 | { "max11610", max11610 }, |
| 1410 | { "max11611", max11611 }, |
| 1411 | { "max11612", max11612 }, |
| 1412 | { "max11613", max11613 }, |
| 1413 | { "max11614", max11614 }, |
| 1414 | { "max11615", max11615 }, |
| 1415 | { "max11616", max11616 }, |
| 1416 | { "max11617", max11617 }, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1417 | {} |
| 1418 | }; |
| 1419 | |
| 1420 | MODULE_DEVICE_TABLE(i2c, max1363_id); |
| 1421 | |
| 1422 | static struct i2c_driver max1363_driver = { |
| 1423 | .driver = { |
| 1424 | .name = "max1363", |
| 1425 | }, |
| 1426 | .probe = max1363_probe, |
| 1427 | .remove = max1363_remove, |
| 1428 | .id_table = max1363_id, |
| 1429 | }; |
| 1430 | |
| 1431 | static __init int max1363_init(void) |
| 1432 | { |
| 1433 | return i2c_add_driver(&max1363_driver); |
| 1434 | } |
| 1435 | |
| 1436 | static __exit void max1363_exit(void) |
| 1437 | { |
| 1438 | i2c_del_driver(&max1363_driver); |
| 1439 | } |
| 1440 | |
| 1441 | MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>"); |
| 1442 | MODULE_DESCRIPTION("Maxim 1363 ADC"); |
| 1443 | MODULE_LICENSE("GPL v2"); |
| 1444 | |
| 1445 | module_init(max1363_init); |
| 1446 | module_exit(max1363_exit); |