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> |
Paul Gortmaker | 99c9785 | 2011-07-03 15:49:50 -0400 | [diff] [blame] | 33 | #include <linux/module.h> |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 34 | |
| 35 | #include "../iio.h" |
| 36 | #include "../sysfs.h" |
Jonathan Cameron | af5046a | 2011-10-26 17:41:32 +0100 | [diff] [blame] | 37 | #include "../events.h" |
| 38 | #include "../buffer.h" |
Jonathan Cameron | 0b27d67 | 2012-04-10 21:11:07 +0100 | [diff] [blame] | 39 | #include "../driver.h" |
Jonathan Cameron | cdf3870 | 2011-08-12 17:08:43 +0100 | [diff] [blame] | 40 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 41 | #include "max1363.h" |
| 42 | |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 43 | #define MAX1363_MODE_SINGLE(_num, _mask) { \ |
| 44 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 45 | | MAX1363_CONFIG_SCAN_SINGLE_1 \ |
| 46 | | MAX1363_CONFIG_SE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 47 | .modemask[0] = _mask, \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | #define MAX1363_MODE_SCAN_TO_CHANNEL(_num, _mask) { \ |
| 51 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 52 | | MAX1363_CONFIG_SCAN_TO_CS \ |
| 53 | | MAX1363_CONFIG_SE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 54 | .modemask[0] = _mask, \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | /* note not available for max1363 hence naming */ |
| 58 | #define MAX1236_MODE_SCAN_MID_TO_CHANNEL(_mid, _num, _mask) { \ |
| 59 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 60 | | MAX1236_SCAN_MID_TO_CHANNEL \ |
| 61 | | MAX1363_CONFIG_SE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 62 | .modemask[0] = _mask \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | #define MAX1363_MODE_DIFF_SINGLE(_nump, _numm, _mask) { \ |
| 66 | .conf = MAX1363_CHANNEL_SEL(_nump) \ |
| 67 | | MAX1363_CONFIG_SCAN_SINGLE_1 \ |
| 68 | | MAX1363_CONFIG_DE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 69 | .modemask[0] = _mask \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /* Can't think how to automate naming so specify for now */ |
| 73 | #define MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(_num, _numvals, _mask) { \ |
| 74 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 75 | | MAX1363_CONFIG_SCAN_TO_CS \ |
| 76 | | MAX1363_CONFIG_DE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 77 | .modemask[0] = _mask \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | /* note only available for max1363 hence naming */ |
| 81 | #define MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(_num, _numvals, _mask) { \ |
| 82 | .conf = MAX1363_CHANNEL_SEL(_num) \ |
| 83 | | MAX1236_SCAN_MID_TO_CHANNEL \ |
| 84 | | MAX1363_CONFIG_SE, \ |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 85 | .modemask[0] = _mask \ |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 86 | } |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 87 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 88 | static const struct max1363_mode max1363_mode_table[] = { |
| 89 | /* All of the single channel options first */ |
| 90 | MAX1363_MODE_SINGLE(0, 1 << 0), |
| 91 | MAX1363_MODE_SINGLE(1, 1 << 1), |
| 92 | MAX1363_MODE_SINGLE(2, 1 << 2), |
| 93 | MAX1363_MODE_SINGLE(3, 1 << 3), |
| 94 | MAX1363_MODE_SINGLE(4, 1 << 4), |
| 95 | MAX1363_MODE_SINGLE(5, 1 << 5), |
| 96 | MAX1363_MODE_SINGLE(6, 1 << 6), |
| 97 | MAX1363_MODE_SINGLE(7, 1 << 7), |
| 98 | MAX1363_MODE_SINGLE(8, 1 << 8), |
| 99 | MAX1363_MODE_SINGLE(9, 1 << 9), |
| 100 | MAX1363_MODE_SINGLE(10, 1 << 10), |
| 101 | MAX1363_MODE_SINGLE(11, 1 << 11), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 102 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 103 | MAX1363_MODE_DIFF_SINGLE(0, 1, 1 << 12), |
| 104 | MAX1363_MODE_DIFF_SINGLE(2, 3, 1 << 13), |
| 105 | MAX1363_MODE_DIFF_SINGLE(4, 5, 1 << 14), |
| 106 | MAX1363_MODE_DIFF_SINGLE(6, 7, 1 << 15), |
| 107 | MAX1363_MODE_DIFF_SINGLE(8, 9, 1 << 16), |
| 108 | MAX1363_MODE_DIFF_SINGLE(10, 11, 1 << 17), |
| 109 | MAX1363_MODE_DIFF_SINGLE(1, 0, 1 << 18), |
| 110 | MAX1363_MODE_DIFF_SINGLE(3, 2, 1 << 19), |
| 111 | MAX1363_MODE_DIFF_SINGLE(5, 4, 1 << 20), |
| 112 | MAX1363_MODE_DIFF_SINGLE(7, 6, 1 << 21), |
| 113 | MAX1363_MODE_DIFF_SINGLE(9, 8, 1 << 22), |
| 114 | MAX1363_MODE_DIFF_SINGLE(11, 10, 1 << 23), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 115 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 116 | /* The multichannel scans next */ |
| 117 | MAX1363_MODE_SCAN_TO_CHANNEL(1, 0x003), |
| 118 | MAX1363_MODE_SCAN_TO_CHANNEL(2, 0x007), |
| 119 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(2, 3, 0x00C), |
| 120 | MAX1363_MODE_SCAN_TO_CHANNEL(3, 0x00F), |
| 121 | MAX1363_MODE_SCAN_TO_CHANNEL(4, 0x01F), |
| 122 | MAX1363_MODE_SCAN_TO_CHANNEL(5, 0x03F), |
| 123 | MAX1363_MODE_SCAN_TO_CHANNEL(6, 0x07F), |
| 124 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 7, 0x0C0), |
| 125 | MAX1363_MODE_SCAN_TO_CHANNEL(7, 0x0FF), |
| 126 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 8, 0x1C0), |
| 127 | MAX1363_MODE_SCAN_TO_CHANNEL(8, 0x1FF), |
| 128 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 9, 0x3C0), |
| 129 | MAX1363_MODE_SCAN_TO_CHANNEL(9, 0x3FF), |
| 130 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 10, 0x7C0), |
| 131 | MAX1363_MODE_SCAN_TO_CHANNEL(10, 0x7FF), |
| 132 | MAX1236_MODE_SCAN_MID_TO_CHANNEL(6, 11, 0xFC0), |
| 133 | MAX1363_MODE_SCAN_TO_CHANNEL(11, 0xFFF), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 134 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 135 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(2, 2, 0x003000), |
| 136 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(4, 3, 0x007000), |
| 137 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(6, 4, 0x00F000), |
| 138 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(8, 2, 0x018000), |
| 139 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(8, 5, 0x01F000), |
| 140 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(10, 3, 0x038000), |
| 141 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(10, 6, 0x3F000), |
| 142 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(3, 2, 0x0C0000), |
| 143 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(5, 3, 0x1C0000), |
| 144 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(7, 4, 0x3C0000), |
| 145 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(9, 2, 0x600000), |
| 146 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(9, 5, 0x7C0000), |
| 147 | MAX1236_MODE_DIFF_SCAN_MID_TO_CHANNEL(11, 3, 0xE00000), |
| 148 | MAX1363_MODE_DIFF_SCAN_TO_CHANNEL(11, 6, 0xFC0000), |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 149 | }; |
| 150 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 151 | const struct max1363_mode |
Jonathan Cameron | c52cfb6 | 2011-12-05 21:37:15 +0000 | [diff] [blame] | 152 | *max1363_match_mode(const unsigned long *mask, |
| 153 | const struct max1363_chip_info *ci) |
Greg Kroah-Hartman | 1b183e4 | 2010-05-04 22:24:05 -0700 | [diff] [blame] | 154 | { |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 155 | int i; |
| 156 | if (mask) |
| 157 | for (i = 0; i < ci->num_modes; i++) |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 158 | if (bitmap_subset(mask, |
| 159 | max1363_mode_table[ci->mode_list[i]]. |
| 160 | modemask, |
| 161 | MAX1363_MAX_CHANNELS)) |
Greg Kroah-Hartman | 1b183e4 | 2010-05-04 22:24:05 -0700 | [diff] [blame] | 162 | return &max1363_mode_table[ci->mode_list[i]]; |
| 163 | return NULL; |
Mike Frysinger | c608cb0 | 2010-05-23 03:10:30 -0400 | [diff] [blame] | 164 | } |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 165 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 166 | static int max1363_write_basic_config(struct i2c_client *client, |
| 167 | unsigned char d1, |
| 168 | unsigned char d2) |
| 169 | { |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 170 | u8 tx_buf[2] = {d1, d2}; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 171 | |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 172 | return i2c_master_send(client, tx_buf, 2); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 173 | } |
| 174 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 175 | int max1363_set_scan_mode(struct max1363_state *st) |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 176 | { |
| 177 | st->configbyte &= ~(MAX1363_CHANNEL_SEL_MASK |
| 178 | | MAX1363_SCAN_MASK |
| 179 | | MAX1363_SE_DE_MASK); |
| 180 | st->configbyte |= st->current_mode->conf; |
| 181 | |
| 182 | return max1363_write_basic_config(st->client, |
| 183 | st->setupbyte, |
| 184 | st->configbyte); |
| 185 | } |
| 186 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 187 | static int max1363_read_single_chan(struct iio_dev *indio_dev, |
| 188 | struct iio_chan_spec const *chan, |
| 189 | int *val, |
| 190 | long m) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 191 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 192 | int ret = 0; |
| 193 | s32 data; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 194 | char rxbuf[2]; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 195 | struct max1363_state *st = iio_priv(indio_dev); |
| 196 | struct i2c_client *client = st->client; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 197 | |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 198 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 199 | /* |
| 200 | * If monitor mode is enabled, the method for reading a single |
| 201 | * channel will have to be rather different and has not yet |
| 202 | * been implemented. |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 203 | * |
| 204 | * Also, cannot read directly if buffered capture enabled. |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 205 | */ |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 206 | if (st->monitor_on || iio_buffer_enabled(indio_dev)) { |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 207 | ret = -EBUSY; |
| 208 | goto error_ret; |
| 209 | } |
| 210 | |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 211 | /* Check to see if current scan mode is correct */ |
| 212 | if (st->current_mode != &max1363_mode_table[chan->address]) { |
| 213 | /* Update scan mode if needed */ |
| 214 | st->current_mode = &max1363_mode_table[chan->address]; |
| 215 | ret = max1363_set_scan_mode(st); |
| 216 | if (ret < 0) |
| 217 | goto error_ret; |
| 218 | } |
| 219 | if (st->chip_info->bits != 8) { |
| 220 | /* Get reading */ |
| 221 | data = i2c_master_recv(client, rxbuf, 2); |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 222 | if (data < 0) { |
| 223 | ret = data; |
| 224 | goto error_ret; |
| 225 | } |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 226 | data = (s32)(rxbuf[1]) | ((s32)(rxbuf[0] & 0x0F)) << 8; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 227 | } else { |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 228 | /* Get reading */ |
| 229 | data = i2c_master_recv(client, rxbuf, 1); |
| 230 | if (data < 0) { |
| 231 | ret = data; |
| 232 | goto error_ret; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 233 | } |
Jonathan Cameron | 3ca34cc | 2011-12-05 22:18:25 +0000 | [diff] [blame] | 234 | data = rxbuf[0]; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 235 | } |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 236 | *val = data; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 237 | error_ret: |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 238 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 239 | return ret; |
| 240 | |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 241 | } |
| 242 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 243 | static int max1363_read_raw(struct iio_dev *indio_dev, |
| 244 | struct iio_chan_spec const *chan, |
| 245 | int *val, |
| 246 | int *val2, |
| 247 | long m) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 248 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 249 | struct max1363_state *st = iio_priv(indio_dev); |
| 250 | int ret; |
| 251 | switch (m) { |
Jonathan Cameron | b11f98f | 2012-04-15 17:41:18 +0100 | [diff] [blame^] | 252 | case IIO_CHAN_INFO_RAW: |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 253 | ret = max1363_read_single_chan(indio_dev, chan, val, m); |
Jonathan Cameron | cd03801 | 2011-08-12 16:55:29 +0100 | [diff] [blame] | 254 | if (ret < 0) |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 255 | return ret; |
| 256 | return IIO_VAL_INT; |
Jonathan Cameron | c8a9f80 | 2011-10-26 17:41:36 +0100 | [diff] [blame] | 257 | case IIO_CHAN_INFO_SCALE: |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 258 | if ((1 << (st->chip_info->bits + 1)) > |
| 259 | st->chip_info->int_vref_mv) { |
| 260 | *val = 0; |
| 261 | *val2 = 500000; |
| 262 | return IIO_VAL_INT_PLUS_MICRO; |
| 263 | } else { |
| 264 | *val = (st->chip_info->int_vref_mv) |
| 265 | >> st->chip_info->bits; |
| 266 | return IIO_VAL_INT; |
| 267 | } |
| 268 | default: |
| 269 | return -EINVAL; |
| 270 | } |
| 271 | return 0; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 272 | } |
| 273 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 274 | /* Applies to max1363 */ |
| 275 | static const enum max1363_modes max1363_mode_list[] = { |
| 276 | _s0, _s1, _s2, _s3, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 277 | s0to1, s0to2, s0to3, |
| 278 | d0m1, d2m3, d1m0, d3m2, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 279 | d0m1to2m3, d1m0to3m2, |
| 280 | }; |
| 281 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 282 | #define MAX1363_EV_M \ |
| 283 | (IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) \ |
| 284 | | IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)) |
Jonathan Cameron | b11f98f | 2012-04-15 17:41:18 +0100 | [diff] [blame^] | 285 | #define MAX1363_INFO_MASK (IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ |
| 286 | IIO_CHAN_INFO_SCALE_SHARED_BIT) |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 287 | #define MAX1363_CHAN_U(num, addr, si, bits, evmask) \ |
| 288 | { \ |
| 289 | .type = IIO_VOLTAGE, \ |
| 290 | .indexed = 1, \ |
| 291 | .channel = num, \ |
| 292 | .address = addr, \ |
| 293 | .info_mask = MAX1363_INFO_MASK, \ |
Jonathan Cameron | bc234e7 | 2011-12-05 21:56:01 +0000 | [diff] [blame] | 294 | .datasheet_name = "AIN"#num, \ |
Jonathan Cameron | 18cffbed | 2011-12-05 21:37:16 +0000 | [diff] [blame] | 295 | .scan_type = { \ |
| 296 | .sign = 'u', \ |
| 297 | .realbits = bits, \ |
| 298 | .storagebits = (bits > 8) ? 16 : 8, \ |
| 299 | .endianness = IIO_BE, \ |
| 300 | }, \ |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 301 | .scan_index = si, \ |
| 302 | .event_mask = evmask, \ |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 303 | } |
| 304 | |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 305 | /* bipolar channel */ |
| 306 | #define MAX1363_CHAN_B(num, num2, addr, si, bits, evmask) \ |
| 307 | { \ |
| 308 | .type = IIO_VOLTAGE, \ |
| 309 | .differential = 1, \ |
| 310 | .indexed = 1, \ |
| 311 | .channel = num, \ |
| 312 | .channel2 = num2, \ |
| 313 | .address = addr, \ |
| 314 | .info_mask = MAX1363_INFO_MASK, \ |
Jonathan Cameron | bc234e7 | 2011-12-05 21:56:01 +0000 | [diff] [blame] | 315 | .datasheet_name = "AIN"#num"-AIN"#num2, \ |
Jonathan Cameron | 18cffbed | 2011-12-05 21:37:16 +0000 | [diff] [blame] | 316 | .scan_type = { \ |
| 317 | .sign = 's', \ |
| 318 | .realbits = bits, \ |
| 319 | .storagebits = (bits > 8) ? 16 : 8, \ |
| 320 | .endianness = IIO_BE, \ |
| 321 | }, \ |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 322 | .scan_index = si, \ |
| 323 | .event_mask = evmask, \ |
| 324 | } |
| 325 | |
| 326 | #define MAX1363_4X_CHANS(bits, em) { \ |
| 327 | MAX1363_CHAN_U(0, _s0, 0, bits, em), \ |
| 328 | MAX1363_CHAN_U(1, _s1, 1, bits, em), \ |
| 329 | MAX1363_CHAN_U(2, _s2, 2, bits, em), \ |
| 330 | MAX1363_CHAN_U(3, _s3, 3, bits, em), \ |
| 331 | MAX1363_CHAN_B(0, 1, d0m1, 4, bits, em), \ |
| 332 | MAX1363_CHAN_B(2, 3, d2m3, 5, bits, em), \ |
| 333 | MAX1363_CHAN_B(1, 0, d1m0, 6, bits, em), \ |
| 334 | MAX1363_CHAN_B(3, 2, d3m2, 7, bits, em), \ |
| 335 | IIO_CHAN_SOFT_TIMESTAMP(8) \ |
| 336 | } |
| 337 | |
| 338 | static struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8, 0); |
| 339 | static struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10, 0); |
| 340 | static struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12, 0); |
| 341 | static struct iio_chan_spec max1361_channels[] = |
| 342 | MAX1363_4X_CHANS(10, MAX1363_EV_M); |
| 343 | static struct iio_chan_spec max1363_channels[] = |
| 344 | MAX1363_4X_CHANS(12, MAX1363_EV_M); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 345 | |
Justin P. Mattock | 4abf6f8 | 2012-02-29 22:00:38 -0800 | [diff] [blame] | 346 | /* Applies to max1236, max1237 */ |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 347 | static const enum max1363_modes max1236_mode_list[] = { |
| 348 | _s0, _s1, _s2, _s3, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 349 | s0to1, s0to2, s0to3, |
| 350 | d0m1, d2m3, d1m0, d3m2, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 351 | d0m1to2m3, d1m0to3m2, |
| 352 | s2to3, |
| 353 | }; |
| 354 | |
| 355 | /* Applies to max1238, max1239 */ |
| 356 | static const enum max1363_modes max1238_mode_list[] = { |
| 357 | _s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, _s8, _s9, _s10, _s11, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 358 | s0to1, s0to2, s0to3, s0to4, s0to5, s0to6, |
| 359 | s0to7, s0to8, s0to9, s0to10, s0to11, |
| 360 | d0m1, d2m3, d4m5, d6m7, d8m9, d10m11, |
| 361 | d1m0, d3m2, d5m4, d7m6, d9m8, d11m10, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 362 | d0m1to2m3, d0m1to4m5, d0m1to6m7, d0m1to8m9, d0m1to10m11, |
| 363 | d1m0to3m2, d1m0to5m4, d1m0to7m6, d1m0to9m8, d1m0to11m10, |
| 364 | s6to7, s6to8, s6to9, s6to10, s6to11, |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 365 | d6m7to8m9, d6m7to10m11, d7m6to9m8, d7m6to11m10, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 366 | }; |
| 367 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 368 | #define MAX1363_12X_CHANS(bits) { \ |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 369 | MAX1363_CHAN_U(0, _s0, 0, bits, 0), \ |
| 370 | MAX1363_CHAN_U(1, _s1, 1, bits, 0), \ |
| 371 | MAX1363_CHAN_U(2, _s2, 2, bits, 0), \ |
| 372 | MAX1363_CHAN_U(3, _s3, 3, bits, 0), \ |
| 373 | MAX1363_CHAN_U(4, _s4, 4, bits, 0), \ |
| 374 | MAX1363_CHAN_U(5, _s5, 5, bits, 0), \ |
| 375 | MAX1363_CHAN_U(6, _s6, 6, bits, 0), \ |
| 376 | MAX1363_CHAN_U(7, _s7, 7, bits, 0), \ |
| 377 | MAX1363_CHAN_U(8, _s8, 8, bits, 0), \ |
| 378 | MAX1363_CHAN_U(9, _s9, 9, bits, 0), \ |
| 379 | MAX1363_CHAN_U(10, _s10, 10, bits, 0), \ |
| 380 | MAX1363_CHAN_U(11, _s11, 11, bits, 0), \ |
| 381 | MAX1363_CHAN_B(0, 1, d0m1, 12, bits, 0), \ |
| 382 | MAX1363_CHAN_B(2, 3, d2m3, 13, bits, 0), \ |
| 383 | MAX1363_CHAN_B(4, 5, d4m5, 14, bits, 0), \ |
| 384 | MAX1363_CHAN_B(6, 7, d6m7, 15, bits, 0), \ |
| 385 | MAX1363_CHAN_B(8, 9, d8m9, 16, bits, 0), \ |
| 386 | MAX1363_CHAN_B(10, 11, d10m11, 17, bits, 0), \ |
| 387 | MAX1363_CHAN_B(1, 0, d1m0, 18, bits, 0), \ |
| 388 | MAX1363_CHAN_B(3, 2, d3m2, 19, bits, 0), \ |
| 389 | MAX1363_CHAN_B(5, 4, d5m4, 20, bits, 0), \ |
| 390 | MAX1363_CHAN_B(7, 6, d7m6, 21, bits, 0), \ |
| 391 | MAX1363_CHAN_B(9, 8, d9m8, 22, bits, 0), \ |
| 392 | MAX1363_CHAN_B(11, 10, d11m10, 23, bits, 0), \ |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 393 | IIO_CHAN_SOFT_TIMESTAMP(24) \ |
| 394 | } |
| 395 | static struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8); |
| 396 | static struct iio_chan_spec max1138_channels[] = MAX1363_12X_CHANS(10); |
| 397 | static struct iio_chan_spec max1238_channels[] = MAX1363_12X_CHANS(12); |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 398 | |
| 399 | static const enum max1363_modes max11607_mode_list[] = { |
| 400 | _s0, _s1, _s2, _s3, |
| 401 | s0to1, s0to2, s0to3, |
| 402 | s2to3, |
| 403 | d0m1, d2m3, d1m0, d3m2, |
| 404 | d0m1to2m3, d1m0to3m2, |
| 405 | }; |
| 406 | |
| 407 | static const enum max1363_modes max11608_mode_list[] = { |
| 408 | _s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, |
| 409 | s0to1, s0to2, s0to3, s0to4, s0to5, s0to6, s0to7, |
| 410 | s6to7, |
| 411 | d0m1, d2m3, d4m5, d6m7, |
| 412 | d1m0, d3m2, d5m4, d7m6, |
| 413 | d0m1to2m3, d0m1to4m5, d0m1to6m7, |
| 414 | d1m0to3m2, d1m0to5m4, d1m0to7m6, |
| 415 | }; |
| 416 | |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 417 | #define MAX1363_8X_CHANS(bits) { \ |
| 418 | MAX1363_CHAN_U(0, _s0, 0, bits, 0), \ |
| 419 | MAX1363_CHAN_U(1, _s1, 1, bits, 0), \ |
| 420 | MAX1363_CHAN_U(2, _s2, 2, bits, 0), \ |
| 421 | MAX1363_CHAN_U(3, _s3, 3, bits, 0), \ |
| 422 | MAX1363_CHAN_U(4, _s4, 4, bits, 0), \ |
| 423 | MAX1363_CHAN_U(5, _s5, 5, bits, 0), \ |
| 424 | MAX1363_CHAN_U(6, _s6, 6, bits, 0), \ |
| 425 | MAX1363_CHAN_U(7, _s7, 7, bits, 0), \ |
| 426 | MAX1363_CHAN_B(0, 1, d0m1, 8, bits, 0), \ |
| 427 | MAX1363_CHAN_B(2, 3, d2m3, 9, bits, 0), \ |
| 428 | MAX1363_CHAN_B(4, 5, d4m5, 10, bits, 0), \ |
| 429 | MAX1363_CHAN_B(6, 7, d6m7, 11, bits, 0), \ |
| 430 | MAX1363_CHAN_B(1, 0, d1m0, 12, bits, 0), \ |
| 431 | MAX1363_CHAN_B(3, 2, d3m2, 13, bits, 0), \ |
| 432 | MAX1363_CHAN_B(5, 4, d5m4, 14, bits, 0), \ |
| 433 | MAX1363_CHAN_B(7, 6, d7m6, 15, bits, 0), \ |
| 434 | IIO_CHAN_SOFT_TIMESTAMP(16) \ |
| 435 | } |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 436 | static struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8); |
| 437 | static struct iio_chan_spec max11608_channels[] = MAX1363_8X_CHANS(10); |
| 438 | static struct iio_chan_spec max11614_channels[] = MAX1363_8X_CHANS(12); |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 439 | |
Jonathan Cameron | 586d152 | 2011-05-18 14:42:10 +0100 | [diff] [blame] | 440 | static const enum max1363_modes max11644_mode_list[] = { |
| 441 | _s0, _s1, s0to1, d0m1, d1m0, |
| 442 | }; |
| 443 | |
| 444 | #define MAX1363_2X_CHANS(bits) { \ |
Jonathan Cameron | ade7ef7 | 2011-09-02 17:14:45 +0100 | [diff] [blame] | 445 | MAX1363_CHAN_U(0, _s0, 0, bits, 0), \ |
| 446 | MAX1363_CHAN_U(1, _s1, 1, bits, 0), \ |
| 447 | MAX1363_CHAN_B(0, 1, d0m1, 2, bits, 0), \ |
| 448 | MAX1363_CHAN_B(1, 0, d1m0, 3, bits, 0), \ |
Jonathan Cameron | 586d152 | 2011-05-18 14:42:10 +0100 | [diff] [blame] | 449 | IIO_CHAN_SOFT_TIMESTAMP(4) \ |
| 450 | } |
| 451 | |
| 452 | static struct iio_chan_spec max11646_channels[] = MAX1363_2X_CHANS(10); |
| 453 | static struct iio_chan_spec max11644_channels[] = MAX1363_2X_CHANS(12); |
| 454 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 455 | enum { max1361, |
| 456 | max1362, |
| 457 | max1363, |
| 458 | max1364, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 459 | max1036, |
| 460 | max1037, |
| 461 | max1038, |
| 462 | max1039, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 463 | max1136, |
| 464 | max1137, |
| 465 | max1138, |
| 466 | max1139, |
| 467 | max1236, |
| 468 | max1237, |
| 469 | max1238, |
| 470 | max1239, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 471 | max11600, |
| 472 | max11601, |
| 473 | max11602, |
| 474 | max11603, |
| 475 | max11604, |
| 476 | max11605, |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 477 | max11606, |
| 478 | max11607, |
| 479 | max11608, |
| 480 | max11609, |
| 481 | max11610, |
| 482 | max11611, |
| 483 | max11612, |
| 484 | max11613, |
| 485 | max11614, |
| 486 | max11615, |
| 487 | max11616, |
| 488 | max11617, |
Jonathan Cameron | 586d152 | 2011-05-18 14:42:10 +0100 | [diff] [blame] | 489 | max11644, |
| 490 | max11645, |
| 491 | max11646, |
| 492 | max11647 |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 493 | }; |
| 494 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 495 | static const int max1363_monitor_speeds[] = { 133000, 665000, 33300, 16600, |
| 496 | 8300, 4200, 2000, 1000 }; |
| 497 | |
| 498 | static ssize_t max1363_monitor_show_freq(struct device *dev, |
| 499 | struct device_attribute *attr, |
| 500 | char *buf) |
| 501 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 502 | struct max1363_state *st = iio_priv(dev_get_drvdata(dev)); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 503 | return sprintf(buf, "%d\n", max1363_monitor_speeds[st->monitor_speed]); |
| 504 | } |
| 505 | |
| 506 | static ssize_t max1363_monitor_store_freq(struct device *dev, |
| 507 | struct device_attribute *attr, |
| 508 | const char *buf, |
| 509 | size_t len) |
| 510 | { |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 511 | struct iio_dev *indio_dev = dev_get_drvdata(dev); |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 512 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 513 | int i, ret; |
| 514 | unsigned long val; |
| 515 | bool found = false; |
| 516 | |
| 517 | ret = strict_strtoul(buf, 10, &val); |
| 518 | if (ret) |
| 519 | return -EINVAL; |
| 520 | for (i = 0; i < ARRAY_SIZE(max1363_monitor_speeds); i++) |
| 521 | if (val == max1363_monitor_speeds[i]) { |
| 522 | found = true; |
| 523 | break; |
| 524 | } |
| 525 | if (!found) |
| 526 | return -EINVAL; |
| 527 | |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 528 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 529 | st->monitor_speed = i; |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 530 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 531 | |
| 532 | return 0; |
| 533 | } |
| 534 | |
| 535 | static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR, |
| 536 | max1363_monitor_show_freq, |
| 537 | max1363_monitor_store_freq); |
| 538 | |
| 539 | static IIO_CONST_ATTR(sampling_frequency_available, |
| 540 | "133000 665000 33300 16600 8300 4200 2000 1000"); |
| 541 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 542 | static int max1363_read_thresh(struct iio_dev *indio_dev, |
Jonathan Cameron | 330c6c5 | 2011-09-02 17:14:39 +0100 | [diff] [blame] | 543 | u64 event_code, |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 544 | int *val) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 545 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 546 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 547 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 548 | *val = st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)]; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 549 | else |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 550 | *val = st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)]; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 551 | return 0; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 552 | } |
| 553 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 554 | static int max1363_write_thresh(struct iio_dev *indio_dev, |
Jonathan Cameron | 330c6c5 | 2011-09-02 17:14:39 +0100 | [diff] [blame] | 555 | u64 event_code, |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 556 | int val) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 557 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 558 | struct max1363_state *st = iio_priv(indio_dev); |
| 559 | /* make it handle signed correctly as well */ |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 560 | switch (st->chip_info->bits) { |
| 561 | case 10: |
| 562 | if (val > 0x3FF) |
| 563 | return -EINVAL; |
| 564 | break; |
| 565 | case 12: |
| 566 | if (val > 0xFFF) |
| 567 | return -EINVAL; |
| 568 | break; |
| 569 | } |
| 570 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 571 | switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) { |
| 572 | case IIO_EV_DIR_FALLING: |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 573 | st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 574 | break; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 575 | case IIO_EV_DIR_RISING: |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 576 | st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 577 | break; |
| 578 | } |
| 579 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 580 | return 0; |
| 581 | } |
| 582 | |
Jonathan Cameron | 330c6c5 | 2011-09-02 17:14:39 +0100 | [diff] [blame] | 583 | static const u64 max1363_event_codes[] = { |
Jonathan Cameron | 6835cb6 | 2011-09-27 09:56:41 +0100 | [diff] [blame] | 584 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 0, |
| 585 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 586 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1, |
| 587 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 588 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2, |
| 589 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 590 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3, |
| 591 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), |
| 592 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 0, |
| 593 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 594 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 1, |
| 595 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 596 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 2, |
| 597 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
| 598 | IIO_UNMOD_EVENT_CODE(IIO_VOLTAGE, 3, |
| 599 | IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 600 | }; |
| 601 | |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 602 | static irqreturn_t max1363_event_handler(int irq, void *private) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 603 | { |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 604 | struct iio_dev *indio_dev = private; |
| 605 | struct max1363_state *st = iio_priv(indio_dev); |
| 606 | s64 timestamp = iio_get_time_ns(); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 607 | unsigned long mask, loc; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 608 | u8 rx; |
| 609 | u8 tx[2] = { st->setupbyte, |
| 610 | MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0 }; |
| 611 | |
| 612 | i2c_master_recv(st->client, &rx, 1); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 613 | mask = rx; |
| 614 | for_each_set_bit(loc, &mask, 8) |
Jonathan Cameron | 5aa9618 | 2011-08-30 12:41:06 +0100 | [diff] [blame] | 615 | iio_push_event(indio_dev, max1363_event_codes[loc], timestamp); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 616 | i2c_master_send(st->client, tx, 2); |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 617 | |
| 618 | return IRQ_HANDLED; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 619 | } |
| 620 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 621 | static int max1363_read_event_config(struct iio_dev *indio_dev, |
Jonathan Cameron | 330c6c5 | 2011-09-02 17:14:39 +0100 | [diff] [blame] | 622 | u64 event_code) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 623 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 624 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 625 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 626 | int val; |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 627 | int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code); |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 628 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 629 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) |
| 630 | val = (1 << number) & st->mask_low; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 631 | else |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 632 | val = (1 << number) & st->mask_high; |
Jonathan Cameron | b6b7068 | 2011-04-15 18:55:58 +0100 | [diff] [blame] | 633 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 634 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 635 | return val; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 636 | } |
| 637 | |
| 638 | static int max1363_monitor_mode_update(struct max1363_state *st, int enabled) |
| 639 | { |
| 640 | u8 *tx_buf; |
| 641 | int ret, i = 3, j; |
| 642 | unsigned long numelements; |
| 643 | int len; |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 644 | const long *modemask; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 645 | |
| 646 | if (!enabled) { |
| 647 | /* transition to ring capture is not currently supported */ |
| 648 | st->setupbyte &= ~MAX1363_SETUP_MONITOR_SETUP; |
| 649 | st->configbyte &= ~MAX1363_SCAN_MASK; |
| 650 | st->monitor_on = false; |
| 651 | return max1363_write_basic_config(st->client, |
| 652 | st->setupbyte, |
| 653 | st->configbyte); |
| 654 | } |
| 655 | |
| 656 | /* Ensure we are in the relevant mode */ |
| 657 | st->setupbyte |= MAX1363_SETUP_MONITOR_SETUP; |
| 658 | st->configbyte &= ~(MAX1363_CHANNEL_SEL_MASK |
| 659 | | MAX1363_SCAN_MASK |
| 660 | | MAX1363_SE_DE_MASK); |
| 661 | st->configbyte |= MAX1363_CONFIG_SCAN_MONITOR_MODE; |
| 662 | if ((st->mask_low | st->mask_high) & 0x0F) { |
| 663 | st->configbyte |= max1363_mode_table[s0to3].conf; |
| 664 | modemask = max1363_mode_table[s0to3].modemask; |
| 665 | } else if ((st->mask_low | st->mask_high) & 0x30) { |
| 666 | st->configbyte |= max1363_mode_table[d0m1to2m3].conf; |
| 667 | modemask = max1363_mode_table[d0m1to2m3].modemask; |
| 668 | } else { |
| 669 | st->configbyte |= max1363_mode_table[d1m0to3m2].conf; |
| 670 | modemask = max1363_mode_table[d1m0to3m2].modemask; |
| 671 | } |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 672 | numelements = bitmap_weight(modemask, MAX1363_MAX_CHANNELS); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 673 | len = 3 * numelements + 3; |
| 674 | tx_buf = kmalloc(len, GFP_KERNEL); |
| 675 | if (!tx_buf) { |
| 676 | ret = -ENOMEM; |
| 677 | goto error_ret; |
| 678 | } |
| 679 | tx_buf[0] = st->configbyte; |
| 680 | tx_buf[1] = st->setupbyte; |
| 681 | tx_buf[2] = (st->monitor_speed << 1); |
| 682 | |
| 683 | /* |
| 684 | * So we need to do yet another bit of nefarious scan mode |
| 685 | * setup to match what we need. |
| 686 | */ |
| 687 | for (j = 0; j < 8; j++) |
Jonathan Cameron | 32b5eec | 2011-09-02 17:14:38 +0100 | [diff] [blame] | 688 | if (test_bit(j, modemask)) { |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 689 | /* Establish the mode is in the scan */ |
| 690 | if (st->mask_low & (1 << j)) { |
| 691 | tx_buf[i] = (st->thresh_low[j] >> 4) & 0xFF; |
| 692 | tx_buf[i + 1] = (st->thresh_low[j] << 4) & 0xF0; |
| 693 | } else if (j < 4) { |
| 694 | tx_buf[i] = 0; |
| 695 | tx_buf[i + 1] = 0; |
| 696 | } else { |
| 697 | tx_buf[i] = 0x80; |
| 698 | tx_buf[i + 1] = 0; |
| 699 | } |
| 700 | if (st->mask_high & (1 << j)) { |
| 701 | tx_buf[i + 1] |= |
| 702 | (st->thresh_high[j] >> 8) & 0x0F; |
| 703 | tx_buf[i + 2] = st->thresh_high[j] & 0xFF; |
| 704 | } else if (j < 4) { |
| 705 | tx_buf[i + 1] |= 0x0F; |
| 706 | tx_buf[i + 2] = 0xFF; |
| 707 | } else { |
| 708 | tx_buf[i + 1] |= 0x07; |
| 709 | tx_buf[i + 2] = 0xFF; |
| 710 | } |
| 711 | i += 3; |
| 712 | } |
| 713 | |
| 714 | |
| 715 | ret = i2c_master_send(st->client, tx_buf, len); |
| 716 | if (ret < 0) |
| 717 | goto error_ret; |
| 718 | if (ret != len) { |
| 719 | ret = -EIO; |
| 720 | goto error_ret; |
| 721 | } |
| 722 | |
| 723 | /* |
| 724 | * Now that we hopefully have sensible thresholds in place it is |
| 725 | * time to turn the interrupts on. |
| 726 | * It is unclear from the data sheet if this should be necessary |
| 727 | * (i.e. whether monitor mode setup is atomic) but it appears to |
| 728 | * be in practice. |
| 729 | */ |
| 730 | tx_buf[0] = st->setupbyte; |
| 731 | tx_buf[1] = MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0; |
| 732 | ret = i2c_master_send(st->client, tx_buf, 2); |
| 733 | if (ret < 0) |
| 734 | goto error_ret; |
| 735 | if (ret != 2) { |
| 736 | ret = -EIO; |
| 737 | goto error_ret; |
| 738 | } |
| 739 | ret = 0; |
| 740 | st->monitor_on = true; |
| 741 | error_ret: |
| 742 | |
| 743 | kfree(tx_buf); |
| 744 | |
| 745 | return ret; |
| 746 | } |
| 747 | |
| 748 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 749 | * To keep this manageable we always use one of 3 scan modes. |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 750 | * Scan 0...3, 0-1,2-3 and 1-0,3-2 |
| 751 | */ |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 752 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 753 | static inline int __max1363_check_event_mask(int thismask, int checkmask) |
| 754 | { |
| 755 | int ret = 0; |
| 756 | /* Is it unipolar */ |
| 757 | if (thismask < 4) { |
| 758 | if (checkmask & ~0x0F) { |
| 759 | ret = -EBUSY; |
| 760 | goto error_ret; |
| 761 | } |
| 762 | } else if (thismask < 6) { |
| 763 | if (checkmask & ~0x30) { |
| 764 | ret = -EBUSY; |
| 765 | goto error_ret; |
| 766 | } |
| 767 | } else if (checkmask & ~0xC0) |
| 768 | ret = -EBUSY; |
| 769 | error_ret: |
| 770 | return ret; |
| 771 | } |
| 772 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 773 | static int max1363_write_event_config(struct iio_dev *indio_dev, |
Jonathan Cameron | 330c6c5 | 2011-09-02 17:14:39 +0100 | [diff] [blame] | 774 | u64 event_code, |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 775 | int state) |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 776 | { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 777 | int ret = 0; |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 778 | struct max1363_state *st = iio_priv(indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 779 | u16 unifiedmask; |
Lars-Peter Clausen | da36716 | 2012-02-13 10:25:32 +0100 | [diff] [blame] | 780 | int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 781 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 782 | mutex_lock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 783 | unifiedmask = st->mask_low | st->mask_high; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 784 | if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) { |
| 785 | |
| 786 | if (state == 0) |
| 787 | st->mask_low &= ~(1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 788 | else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 789 | ret = __max1363_check_event_mask((1 << number), |
| 790 | unifiedmask); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 791 | if (ret) |
| 792 | goto error_ret; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 793 | st->mask_low |= (1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 794 | } |
| 795 | } else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 796 | if (state == 0) |
| 797 | st->mask_high &= ~(1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 798 | else { |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 799 | ret = __max1363_check_event_mask((1 << number), |
| 800 | unifiedmask); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 801 | if (ret) |
| 802 | goto error_ret; |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 803 | st->mask_high |= (1 << number); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 804 | } |
| 805 | } |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 806 | |
| 807 | max1363_monitor_mode_update(st, !!(st->mask_high | st->mask_low)); |
| 808 | error_ret: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 809 | mutex_unlock(&indio_dev->mlock); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 810 | |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 811 | return ret; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 812 | } |
| 813 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 814 | /* |
| 815 | * As with scan_elements, only certain sets of these can |
| 816 | * be combined. |
| 817 | */ |
| 818 | static struct attribute *max1363_event_attributes[] = { |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 819 | &iio_dev_attr_sampling_frequency.dev_attr.attr, |
| 820 | &iio_const_attr_sampling_frequency_available.dev_attr.attr, |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 821 | NULL, |
| 822 | }; |
| 823 | |
| 824 | static struct attribute_group max1363_event_attribute_group = { |
| 825 | .attrs = max1363_event_attributes, |
Jonathan Cameron | 8e7d967 | 2011-08-30 12:32:45 +0100 | [diff] [blame] | 826 | .name = "events", |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 827 | }; |
| 828 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 829 | #define MAX1363_EVENT_FUNCS \ |
| 830 | |
| 831 | |
| 832 | static const struct iio_info max1238_info = { |
| 833 | .read_raw = &max1363_read_raw, |
| 834 | .driver_module = THIS_MODULE, |
Jonathan Cameron | a9ea1b1 | 2012-04-10 21:11:05 +0100 | [diff] [blame] | 835 | .update_scan_mode = &max1363_update_scan_mode, |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 836 | }; |
| 837 | |
| 838 | static const struct iio_info max1363_info = { |
| 839 | .read_event_value = &max1363_read_thresh, |
| 840 | .write_event_value = &max1363_write_thresh, |
| 841 | .read_event_config = &max1363_read_event_config, |
| 842 | .write_event_config = &max1363_write_event_config, |
| 843 | .read_raw = &max1363_read_raw, |
Jonathan Cameron | c52cfb6 | 2011-12-05 21:37:15 +0000 | [diff] [blame] | 844 | .update_scan_mode = &max1363_update_scan_mode, |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 845 | .driver_module = THIS_MODULE, |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 846 | .event_attrs = &max1363_event_attribute_group, |
| 847 | }; |
| 848 | |
| 849 | /* max1363 and max1368 tested - rest from data sheet */ |
| 850 | static const struct max1363_chip_info max1363_chip_info_tbl[] = { |
| 851 | [max1361] = { |
| 852 | .bits = 10, |
| 853 | .int_vref_mv = 2048, |
| 854 | .mode_list = max1363_mode_list, |
| 855 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 856 | .default_mode = s0to3, |
| 857 | .channels = max1361_channels, |
| 858 | .num_channels = ARRAY_SIZE(max1361_channels), |
| 859 | .info = &max1363_info, |
| 860 | }, |
| 861 | [max1362] = { |
| 862 | .bits = 10, |
| 863 | .int_vref_mv = 4096, |
| 864 | .mode_list = max1363_mode_list, |
| 865 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 866 | .default_mode = s0to3, |
| 867 | .channels = max1361_channels, |
| 868 | .num_channels = ARRAY_SIZE(max1361_channels), |
| 869 | .info = &max1363_info, |
| 870 | }, |
| 871 | [max1363] = { |
| 872 | .bits = 12, |
| 873 | .int_vref_mv = 2048, |
| 874 | .mode_list = max1363_mode_list, |
| 875 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 876 | .default_mode = s0to3, |
| 877 | .channels = max1363_channels, |
| 878 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 879 | .info = &max1363_info, |
| 880 | }, |
| 881 | [max1364] = { |
| 882 | .bits = 12, |
| 883 | .int_vref_mv = 4096, |
| 884 | .mode_list = max1363_mode_list, |
| 885 | .num_modes = ARRAY_SIZE(max1363_mode_list), |
| 886 | .default_mode = s0to3, |
| 887 | .channels = max1363_channels, |
| 888 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 889 | .info = &max1363_info, |
| 890 | }, |
| 891 | [max1036] = { |
| 892 | .bits = 8, |
| 893 | .int_vref_mv = 4096, |
| 894 | .mode_list = max1236_mode_list, |
| 895 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 896 | .default_mode = s0to3, |
| 897 | .info = &max1238_info, |
| 898 | .channels = max1036_channels, |
| 899 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 900 | }, |
| 901 | [max1037] = { |
| 902 | .bits = 8, |
| 903 | .int_vref_mv = 2048, |
| 904 | .mode_list = max1236_mode_list, |
| 905 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 906 | .default_mode = s0to3, |
| 907 | .info = &max1238_info, |
| 908 | .channels = max1036_channels, |
| 909 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 910 | }, |
| 911 | [max1038] = { |
| 912 | .bits = 8, |
| 913 | .int_vref_mv = 4096, |
| 914 | .mode_list = max1238_mode_list, |
| 915 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 916 | .default_mode = s0to11, |
| 917 | .info = &max1238_info, |
| 918 | .channels = max1038_channels, |
| 919 | .num_channels = ARRAY_SIZE(max1038_channels), |
| 920 | }, |
| 921 | [max1039] = { |
| 922 | .bits = 8, |
| 923 | .int_vref_mv = 2048, |
| 924 | .mode_list = max1238_mode_list, |
| 925 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 926 | .default_mode = s0to11, |
| 927 | .info = &max1238_info, |
| 928 | .channels = max1038_channels, |
| 929 | .num_channels = ARRAY_SIZE(max1038_channels), |
| 930 | }, |
| 931 | [max1136] = { |
| 932 | .bits = 10, |
| 933 | .int_vref_mv = 4096, |
| 934 | .mode_list = max1236_mode_list, |
| 935 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 936 | .default_mode = s0to3, |
| 937 | .info = &max1238_info, |
| 938 | .channels = max1136_channels, |
| 939 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 940 | }, |
| 941 | [max1137] = { |
| 942 | .bits = 10, |
| 943 | .int_vref_mv = 2048, |
| 944 | .mode_list = max1236_mode_list, |
| 945 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 946 | .default_mode = s0to3, |
| 947 | .info = &max1238_info, |
| 948 | .channels = max1136_channels, |
| 949 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 950 | }, |
| 951 | [max1138] = { |
| 952 | .bits = 10, |
| 953 | .int_vref_mv = 4096, |
| 954 | .mode_list = max1238_mode_list, |
| 955 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 956 | .default_mode = s0to11, |
| 957 | .info = &max1238_info, |
| 958 | .channels = max1138_channels, |
| 959 | .num_channels = ARRAY_SIZE(max1138_channels), |
| 960 | }, |
| 961 | [max1139] = { |
| 962 | .bits = 10, |
| 963 | .int_vref_mv = 2048, |
| 964 | .mode_list = max1238_mode_list, |
| 965 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 966 | .default_mode = s0to11, |
| 967 | .info = &max1238_info, |
| 968 | .channels = max1138_channels, |
| 969 | .num_channels = ARRAY_SIZE(max1138_channels), |
| 970 | }, |
| 971 | [max1236] = { |
| 972 | .bits = 12, |
| 973 | .int_vref_mv = 4096, |
| 974 | .mode_list = max1236_mode_list, |
| 975 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 976 | .default_mode = s0to3, |
| 977 | .info = &max1238_info, |
| 978 | .channels = max1236_channels, |
| 979 | .num_channels = ARRAY_SIZE(max1236_channels), |
| 980 | }, |
| 981 | [max1237] = { |
| 982 | .bits = 12, |
| 983 | .int_vref_mv = 2048, |
| 984 | .mode_list = max1236_mode_list, |
| 985 | .num_modes = ARRAY_SIZE(max1236_mode_list), |
| 986 | .default_mode = s0to3, |
| 987 | .info = &max1238_info, |
| 988 | .channels = max1236_channels, |
| 989 | .num_channels = ARRAY_SIZE(max1236_channels), |
| 990 | }, |
| 991 | [max1238] = { |
| 992 | .bits = 12, |
| 993 | .int_vref_mv = 4096, |
| 994 | .mode_list = max1238_mode_list, |
| 995 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 996 | .default_mode = s0to11, |
| 997 | .info = &max1238_info, |
| 998 | .channels = max1238_channels, |
| 999 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1000 | }, |
| 1001 | [max1239] = { |
| 1002 | .bits = 12, |
| 1003 | .int_vref_mv = 2048, |
| 1004 | .mode_list = max1238_mode_list, |
| 1005 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1006 | .default_mode = s0to11, |
| 1007 | .info = &max1238_info, |
| 1008 | .channels = max1238_channels, |
| 1009 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1010 | }, |
| 1011 | [max11600] = { |
| 1012 | .bits = 8, |
| 1013 | .int_vref_mv = 4096, |
| 1014 | .mode_list = max11607_mode_list, |
| 1015 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1016 | .default_mode = s0to3, |
| 1017 | .info = &max1238_info, |
| 1018 | .channels = max1036_channels, |
| 1019 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 1020 | }, |
| 1021 | [max11601] = { |
| 1022 | .bits = 8, |
| 1023 | .int_vref_mv = 2048, |
| 1024 | .mode_list = max11607_mode_list, |
| 1025 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1026 | .default_mode = s0to3, |
| 1027 | .info = &max1238_info, |
| 1028 | .channels = max1036_channels, |
| 1029 | .num_channels = ARRAY_SIZE(max1036_channels), |
| 1030 | }, |
| 1031 | [max11602] = { |
| 1032 | .bits = 8, |
| 1033 | .int_vref_mv = 4096, |
| 1034 | .mode_list = max11608_mode_list, |
| 1035 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1036 | .default_mode = s0to7, |
| 1037 | .info = &max1238_info, |
| 1038 | .channels = max11602_channels, |
| 1039 | .num_channels = ARRAY_SIZE(max11602_channels), |
| 1040 | }, |
| 1041 | [max11603] = { |
| 1042 | .bits = 8, |
| 1043 | .int_vref_mv = 2048, |
| 1044 | .mode_list = max11608_mode_list, |
| 1045 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1046 | .default_mode = s0to7, |
| 1047 | .info = &max1238_info, |
| 1048 | .channels = max11602_channels, |
| 1049 | .num_channels = ARRAY_SIZE(max11602_channels), |
| 1050 | }, |
| 1051 | [max11604] = { |
| 1052 | .bits = 8, |
| 1053 | .int_vref_mv = 4098, |
| 1054 | .mode_list = max1238_mode_list, |
| 1055 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1056 | .default_mode = s0to11, |
| 1057 | .info = &max1238_info, |
| 1058 | .channels = max1238_channels, |
| 1059 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1060 | }, |
| 1061 | [max11605] = { |
| 1062 | .bits = 8, |
| 1063 | .int_vref_mv = 2048, |
| 1064 | .mode_list = max1238_mode_list, |
| 1065 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1066 | .default_mode = s0to11, |
| 1067 | .info = &max1238_info, |
| 1068 | .channels = max1238_channels, |
| 1069 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1070 | }, |
| 1071 | [max11606] = { |
| 1072 | .bits = 10, |
| 1073 | .int_vref_mv = 4096, |
| 1074 | .mode_list = max11607_mode_list, |
| 1075 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1076 | .default_mode = s0to3, |
| 1077 | .info = &max1238_info, |
| 1078 | .channels = max1136_channels, |
| 1079 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 1080 | }, |
| 1081 | [max11607] = { |
| 1082 | .bits = 10, |
| 1083 | .int_vref_mv = 2048, |
| 1084 | .mode_list = max11607_mode_list, |
| 1085 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1086 | .default_mode = s0to3, |
| 1087 | .info = &max1238_info, |
| 1088 | .channels = max1136_channels, |
| 1089 | .num_channels = ARRAY_SIZE(max1136_channels), |
| 1090 | }, |
| 1091 | [max11608] = { |
| 1092 | .bits = 10, |
| 1093 | .int_vref_mv = 4096, |
| 1094 | .mode_list = max11608_mode_list, |
| 1095 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1096 | .default_mode = s0to7, |
| 1097 | .info = &max1238_info, |
| 1098 | .channels = max11608_channels, |
| 1099 | .num_channels = ARRAY_SIZE(max11608_channels), |
| 1100 | }, |
| 1101 | [max11609] = { |
| 1102 | .bits = 10, |
| 1103 | .int_vref_mv = 2048, |
| 1104 | .mode_list = max11608_mode_list, |
| 1105 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1106 | .default_mode = s0to7, |
| 1107 | .info = &max1238_info, |
| 1108 | .channels = max11608_channels, |
| 1109 | .num_channels = ARRAY_SIZE(max11608_channels), |
| 1110 | }, |
| 1111 | [max11610] = { |
| 1112 | .bits = 10, |
| 1113 | .int_vref_mv = 4098, |
| 1114 | .mode_list = max1238_mode_list, |
| 1115 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1116 | .default_mode = s0to11, |
| 1117 | .info = &max1238_info, |
| 1118 | .channels = max1238_channels, |
| 1119 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1120 | }, |
| 1121 | [max11611] = { |
| 1122 | .bits = 10, |
| 1123 | .int_vref_mv = 2048, |
| 1124 | .mode_list = max1238_mode_list, |
| 1125 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1126 | .default_mode = s0to11, |
| 1127 | .info = &max1238_info, |
| 1128 | .channels = max1238_channels, |
| 1129 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1130 | }, |
| 1131 | [max11612] = { |
| 1132 | .bits = 12, |
| 1133 | .int_vref_mv = 4096, |
| 1134 | .mode_list = max11607_mode_list, |
| 1135 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1136 | .default_mode = s0to3, |
| 1137 | .info = &max1238_info, |
| 1138 | .channels = max1363_channels, |
| 1139 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 1140 | }, |
| 1141 | [max11613] = { |
| 1142 | .bits = 12, |
| 1143 | .int_vref_mv = 2048, |
| 1144 | .mode_list = max11607_mode_list, |
| 1145 | .num_modes = ARRAY_SIZE(max11607_mode_list), |
| 1146 | .default_mode = s0to3, |
| 1147 | .info = &max1238_info, |
| 1148 | .channels = max1363_channels, |
| 1149 | .num_channels = ARRAY_SIZE(max1363_channels), |
| 1150 | }, |
| 1151 | [max11614] = { |
| 1152 | .bits = 12, |
| 1153 | .int_vref_mv = 4096, |
| 1154 | .mode_list = max11608_mode_list, |
| 1155 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1156 | .default_mode = s0to7, |
| 1157 | .info = &max1238_info, |
| 1158 | .channels = max11614_channels, |
| 1159 | .num_channels = ARRAY_SIZE(max11614_channels), |
| 1160 | }, |
| 1161 | [max11615] = { |
| 1162 | .bits = 12, |
| 1163 | .int_vref_mv = 2048, |
| 1164 | .mode_list = max11608_mode_list, |
| 1165 | .num_modes = ARRAY_SIZE(max11608_mode_list), |
| 1166 | .default_mode = s0to7, |
| 1167 | .info = &max1238_info, |
| 1168 | .channels = max11614_channels, |
| 1169 | .num_channels = ARRAY_SIZE(max11614_channels), |
| 1170 | }, |
| 1171 | [max11616] = { |
| 1172 | .bits = 12, |
| 1173 | .int_vref_mv = 4098, |
| 1174 | .mode_list = max1238_mode_list, |
| 1175 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1176 | .default_mode = s0to11, |
| 1177 | .info = &max1238_info, |
| 1178 | .channels = max1238_channels, |
| 1179 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1180 | }, |
| 1181 | [max11617] = { |
| 1182 | .bits = 12, |
| 1183 | .int_vref_mv = 2048, |
| 1184 | .mode_list = max1238_mode_list, |
| 1185 | .num_modes = ARRAY_SIZE(max1238_mode_list), |
| 1186 | .default_mode = s0to11, |
| 1187 | .info = &max1238_info, |
| 1188 | .channels = max1238_channels, |
| 1189 | .num_channels = ARRAY_SIZE(max1238_channels), |
| 1190 | }, |
| 1191 | [max11644] = { |
| 1192 | .bits = 12, |
| 1193 | .int_vref_mv = 2048, |
| 1194 | .mode_list = max11644_mode_list, |
| 1195 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1196 | .default_mode = s0to1, |
| 1197 | .info = &max1238_info, |
| 1198 | .channels = max11644_channels, |
| 1199 | .num_channels = ARRAY_SIZE(max11644_channels), |
| 1200 | }, |
| 1201 | [max11645] = { |
| 1202 | .bits = 12, |
| 1203 | .int_vref_mv = 4096, |
| 1204 | .mode_list = max11644_mode_list, |
| 1205 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1206 | .default_mode = s0to1, |
| 1207 | .info = &max1238_info, |
| 1208 | .channels = max11644_channels, |
| 1209 | .num_channels = ARRAY_SIZE(max11644_channels), |
| 1210 | }, |
| 1211 | [max11646] = { |
| 1212 | .bits = 10, |
| 1213 | .int_vref_mv = 2048, |
| 1214 | .mode_list = max11644_mode_list, |
| 1215 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1216 | .default_mode = s0to1, |
| 1217 | .info = &max1238_info, |
| 1218 | .channels = max11646_channels, |
| 1219 | .num_channels = ARRAY_SIZE(max11646_channels), |
| 1220 | }, |
| 1221 | [max11647] = { |
| 1222 | .bits = 10, |
| 1223 | .int_vref_mv = 4096, |
| 1224 | .mode_list = max11644_mode_list, |
| 1225 | .num_modes = ARRAY_SIZE(max11644_mode_list), |
| 1226 | .default_mode = s0to1, |
| 1227 | .info = &max1238_info, |
| 1228 | .channels = max11646_channels, |
| 1229 | .num_channels = ARRAY_SIZE(max11646_channels), |
| 1230 | }, |
| 1231 | }; |
| 1232 | |
| 1233 | |
| 1234 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1235 | static int max1363_initial_setup(struct max1363_state *st) |
| 1236 | { |
| 1237 | st->setupbyte = MAX1363_SETUP_AIN3_IS_AIN3_REF_IS_VDD |
| 1238 | | MAX1363_SETUP_POWER_UP_INT_REF |
| 1239 | | MAX1363_SETUP_INT_CLOCK |
| 1240 | | MAX1363_SETUP_UNIPOLAR |
| 1241 | | MAX1363_SETUP_NORESET; |
| 1242 | |
| 1243 | /* Set scan mode writes the config anyway so wait until then*/ |
| 1244 | st->setupbyte = MAX1363_SETUP_BYTE(st->setupbyte); |
| 1245 | st->current_mode = &max1363_mode_table[st->chip_info->default_mode]; |
| 1246 | st->configbyte = MAX1363_CONFIG_BYTE(st->configbyte); |
| 1247 | |
| 1248 | return max1363_set_scan_mode(st); |
| 1249 | } |
| 1250 | |
Michael Hennerich | cd4361c | 2012-02-22 13:16:49 +0100 | [diff] [blame] | 1251 | static int __devinit max1363_alloc_scan_masks(struct iio_dev *indio_dev) |
| 1252 | { |
| 1253 | struct max1363_state *st = iio_priv(indio_dev); |
| 1254 | unsigned long *masks; |
| 1255 | int i; |
| 1256 | |
| 1257 | masks = kzalloc(BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*sizeof(long)* |
| 1258 | (st->chip_info->num_modes + 1), GFP_KERNEL); |
| 1259 | if (!masks) |
| 1260 | return -ENOMEM; |
| 1261 | |
| 1262 | for (i = 0; i < st->chip_info->num_modes; i++) |
| 1263 | bitmap_copy(masks + BITS_TO_LONGS(MAX1363_MAX_CHANNELS)*i, |
| 1264 | max1363_mode_table[st->chip_info->mode_list[i]] |
| 1265 | .modemask, MAX1363_MAX_CHANNELS); |
| 1266 | |
| 1267 | indio_dev->available_scan_masks = masks; |
| 1268 | |
| 1269 | return 0; |
| 1270 | } |
| 1271 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1272 | static int __devinit max1363_probe(struct i2c_client *client, |
| 1273 | const struct i2c_device_id *id) |
| 1274 | { |
Michael Hennerich | cd4361c | 2012-02-22 13:16:49 +0100 | [diff] [blame] | 1275 | int ret; |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1276 | struct max1363_state *st; |
| 1277 | struct iio_dev *indio_dev; |
| 1278 | struct regulator *reg; |
| 1279 | |
| 1280 | reg = regulator_get(&client->dev, "vcc"); |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1281 | if (IS_ERR(reg)) { |
| 1282 | ret = PTR_ERR(reg); |
| 1283 | goto error_out; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1284 | } |
| 1285 | |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1286 | ret = regulator_enable(reg); |
| 1287 | if (ret) |
| 1288 | goto error_put_reg; |
| 1289 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1290 | indio_dev = iio_allocate_device(sizeof(struct max1363_state)); |
| 1291 | if (indio_dev == NULL) { |
| 1292 | ret = -ENOMEM; |
| 1293 | goto error_disable_reg; |
| 1294 | } |
Jonathan Cameron | 0b27d67 | 2012-04-10 21:11:07 +0100 | [diff] [blame] | 1295 | ret = iio_map_array_register(indio_dev, client->dev.platform_data); |
| 1296 | if (ret < 0) |
| 1297 | goto error_free_device; |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1298 | st = iio_priv(indio_dev); |
| 1299 | st->reg = reg; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1300 | /* this is only used for device removal purposes */ |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1301 | i2c_set_clientdata(client, indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1302 | |
Jonathan Cameron | 962a4cc | 2010-06-26 12:54:13 +0100 | [diff] [blame] | 1303 | st->chip_info = &max1363_chip_info_tbl[id->driver_data]; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1304 | st->client = client; |
| 1305 | |
Michael Hennerich | cd4361c | 2012-02-22 13:16:49 +0100 | [diff] [blame] | 1306 | ret = max1363_alloc_scan_masks(indio_dev); |
| 1307 | if (ret) |
Jonathan Cameron | 0b27d67 | 2012-04-10 21:11:07 +0100 | [diff] [blame] | 1308 | goto error_unregister_map; |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1309 | |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1310 | /* Estabilish that the iio_dev is a child of the i2c device */ |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1311 | indio_dev->dev.parent = &client->dev; |
Jonathan Cameron | 845bd12 | 2011-05-18 14:41:44 +0100 | [diff] [blame] | 1312 | indio_dev->name = id->name; |
Jonathan Cameron | 8e7d967 | 2011-08-30 12:32:45 +0100 | [diff] [blame] | 1313 | indio_dev->channels = st->chip_info->channels; |
| 1314 | indio_dev->num_channels = st->chip_info->num_channels; |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1315 | indio_dev->info = st->chip_info->info; |
| 1316 | indio_dev->modes = INDIO_DIRECT_MODE; |
Jonathan Cameron | cd03801 | 2011-08-12 16:55:29 +0100 | [diff] [blame] | 1317 | indio_dev->channels = st->chip_info->channels; |
| 1318 | indio_dev->num_channels = st->chip_info->num_channels; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1319 | ret = max1363_initial_setup(st); |
Jonathan Cameron | 58f0a25 | 2011-05-18 14:42:38 +0100 | [diff] [blame] | 1320 | if (ret < 0) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1321 | goto error_free_available_scan_masks; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1322 | |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1323 | ret = max1363_register_ring_funcs_and_init(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1324 | if (ret) |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1325 | goto error_free_available_scan_masks; |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1326 | |
Jonathan Cameron | 14555b1 | 2011-09-21 11:15:57 +0100 | [diff] [blame] | 1327 | ret = iio_buffer_register(indio_dev, |
| 1328 | st->chip_info->channels, |
| 1329 | st->chip_info->num_channels); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1330 | if (ret) |
| 1331 | goto error_cleanup_ring; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1332 | |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1333 | if (client->irq) { |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 1334 | ret = request_threaded_irq(st->client->irq, |
| 1335 | NULL, |
| 1336 | &max1363_event_handler, |
| 1337 | IRQF_TRIGGER_RISING | IRQF_ONESHOT, |
| 1338 | "max1363_event", |
| 1339 | indio_dev); |
Jonathan Cameron | 298cd97 | 2011-05-18 14:40:53 +0100 | [diff] [blame] | 1340 | |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1341 | if (ret) |
| 1342 | goto error_uninit_ring; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1343 | } |
| 1344 | |
Jonathan Cameron | 26d25ae | 2011-09-02 17:14:40 +0100 | [diff] [blame] | 1345 | ret = iio_device_register(indio_dev); |
| 1346 | if (ret < 0) |
| 1347 | goto error_free_irq; |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1348 | |
Jonathan Cameron | 26d25ae | 2011-09-02 17:14:40 +0100 | [diff] [blame] | 1349 | return 0; |
| 1350 | error_free_irq: |
| 1351 | free_irq(st->client->irq, indio_dev); |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1352 | error_uninit_ring: |
Jonathan Cameron | 14555b1 | 2011-09-21 11:15:57 +0100 | [diff] [blame] | 1353 | iio_buffer_unregister(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1354 | error_cleanup_ring: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1355 | max1363_ring_cleanup(indio_dev); |
Jonathan Cameron | 82020b0 | 2010-05-04 14:43:03 +0100 | [diff] [blame] | 1356 | error_free_available_scan_masks: |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1357 | kfree(indio_dev->available_scan_masks); |
Jonathan Cameron | 0b27d67 | 2012-04-10 21:11:07 +0100 | [diff] [blame] | 1358 | error_unregister_map: |
| 1359 | iio_map_array_unregister(indio_dev, client->dev.platform_data); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1360 | error_free_device: |
Jonathan Cameron | 26d25ae | 2011-09-02 17:14:40 +0100 | [diff] [blame] | 1361 | iio_free_device(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1362 | error_disable_reg: |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1363 | regulator_disable(reg); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1364 | error_put_reg: |
Dan Carpenter | f88af7e | 2011-06-08 09:42:21 +0300 | [diff] [blame] | 1365 | regulator_put(reg); |
| 1366 | error_out: |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1367 | return ret; |
| 1368 | } |
| 1369 | |
| 1370 | static int max1363_remove(struct i2c_client *client) |
| 1371 | { |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1372 | struct iio_dev *indio_dev = i2c_get_clientdata(client); |
| 1373 | struct max1363_state *st = iio_priv(indio_dev); |
| 1374 | struct regulator *reg = st->reg; |
Jonathan Cameron | 440a520 | 2010-06-26 12:54:23 +0100 | [diff] [blame] | 1375 | |
Jonathan Cameron | d2fffd6 | 2011-10-14 14:46:58 +0100 | [diff] [blame] | 1376 | iio_device_unregister(indio_dev); |
Jonathan Cameron | 6fe8135 | 2011-05-18 14:42:37 +0100 | [diff] [blame] | 1377 | if (client->irq) |
Jonathan Cameron | aaf370d | 2011-05-18 14:41:16 +0100 | [diff] [blame] | 1378 | free_irq(st->client->irq, indio_dev); |
Jonathan Cameron | 14555b1 | 2011-09-21 11:15:57 +0100 | [diff] [blame] | 1379 | iio_buffer_unregister(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1380 | max1363_ring_cleanup(indio_dev); |
Jonathan Cameron | 3dba81b | 2011-04-15 18:55:59 +0100 | [diff] [blame] | 1381 | kfree(indio_dev->available_scan_masks); |
| 1382 | if (!IS_ERR(reg)) { |
| 1383 | regulator_disable(reg); |
| 1384 | regulator_put(reg); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1385 | } |
Jonathan Cameron | 0b27d67 | 2012-04-10 21:11:07 +0100 | [diff] [blame] | 1386 | iio_map_array_unregister(indio_dev, client->dev.platform_data); |
Jonathan Cameron | d2fffd6 | 2011-10-14 14:46:58 +0100 | [diff] [blame] | 1387 | iio_free_device(indio_dev); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1388 | |
| 1389 | return 0; |
| 1390 | } |
| 1391 | |
| 1392 | static const struct i2c_device_id max1363_id[] = { |
| 1393 | { "max1361", max1361 }, |
| 1394 | { "max1362", max1362 }, |
| 1395 | { "max1363", max1363 }, |
| 1396 | { "max1364", max1364 }, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 1397 | { "max1036", max1036 }, |
| 1398 | { "max1037", max1037 }, |
| 1399 | { "max1038", max1038 }, |
| 1400 | { "max1039", max1039 }, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1401 | { "max1136", max1136 }, |
| 1402 | { "max1137", max1137 }, |
| 1403 | { "max1138", max1138 }, |
| 1404 | { "max1139", max1139 }, |
| 1405 | { "max1236", max1236 }, |
| 1406 | { "max1237", max1237 }, |
| 1407 | { "max1238", max1238 }, |
| 1408 | { "max1239", max1239 }, |
Jonathan Cameron | 3bf877c | 2010-05-04 14:43:10 +0100 | [diff] [blame] | 1409 | { "max11600", max11600 }, |
| 1410 | { "max11601", max11601 }, |
| 1411 | { "max11602", max11602 }, |
| 1412 | { "max11603", max11603 }, |
| 1413 | { "max11604", max11604 }, |
| 1414 | { "max11605", max11605 }, |
Jonathan Cameron | c3fa0fdd | 2010-05-04 14:43:09 +0100 | [diff] [blame] | 1415 | { "max11606", max11606 }, |
| 1416 | { "max11607", max11607 }, |
| 1417 | { "max11608", max11608 }, |
| 1418 | { "max11609", max11609 }, |
| 1419 | { "max11610", max11610 }, |
| 1420 | { "max11611", max11611 }, |
| 1421 | { "max11612", max11612 }, |
| 1422 | { "max11613", max11613 }, |
| 1423 | { "max11614", max11614 }, |
| 1424 | { "max11615", max11615 }, |
| 1425 | { "max11616", max11616 }, |
| 1426 | { "max11617", max11617 }, |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1427 | {} |
| 1428 | }; |
| 1429 | |
| 1430 | MODULE_DEVICE_TABLE(i2c, max1363_id); |
| 1431 | |
| 1432 | static struct i2c_driver max1363_driver = { |
| 1433 | .driver = { |
| 1434 | .name = "max1363", |
| 1435 | }, |
| 1436 | .probe = max1363_probe, |
| 1437 | .remove = max1363_remove, |
| 1438 | .id_table = max1363_id, |
| 1439 | }; |
Lars-Peter Clausen | 6e5af18 | 2011-11-16 10:13:38 +0100 | [diff] [blame] | 1440 | module_i2c_driver(max1363_driver); |
Jonathan Cameron | d1325cf | 2009-08-18 18:06:20 +0100 | [diff] [blame] | 1441 | |
| 1442 | MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>"); |
| 1443 | MODULE_DESCRIPTION("Maxim 1363 ADC"); |
| 1444 | MODULE_LICENSE("GPL v2"); |