1 #!/bin/sh 1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2021 Bartosz Golaszewski <brgl@ 3 # Copyright (C) 2021 Bartosz Golaszewski <brgl@bgdev.pl>
4 4
5 BASE_DIR=`dirname $0` 5 BASE_DIR=`dirname $0`
6 CONFIGFS_DIR="/sys/kernel/config/gpio-sim" 6 CONFIGFS_DIR="/sys/kernel/config/gpio-sim"
7 MODULE="gpio-sim" 7 MODULE="gpio-sim"
8 8
9 fail() { 9 fail() {
10 echo "$*" >&2 10 echo "$*" >&2
11 echo "GPIO $MODULE test FAIL" 11 echo "GPIO $MODULE test FAIL"
12 exit 1 12 exit 1
13 } 13 }
14 14
15 skip() { 15 skip() {
16 echo "$*" >&2 16 echo "$*" >&2
17 echo "GPIO $MODULE test SKIP" 17 echo "GPIO $MODULE test SKIP"
18 exit 4 18 exit 4
19 } 19 }
20 20
21 remove_chip() { 21 remove_chip() {
22 local CHIP=$1 22 local CHIP=$1
23 23
24 for FILE in $CONFIGFS_DIR/$CHIP/*; do 24 for FILE in $CONFIGFS_DIR/$CHIP/*; do
25 BANK=`basename $FILE` 25 BANK=`basename $FILE`
26 if [ "$BANK" = "live" -o "$BAN 26 if [ "$BANK" = "live" -o "$BANK" = "dev_name" ]; then
27 continue 27 continue
28 fi 28 fi
29 29
30 LINES=`ls $CONFIGFS_DIR/$CHIP/ 30 LINES=`ls $CONFIGFS_DIR/$CHIP/$BANK/ | grep -E ^line`
31 if [ "$?" = 0 ]; then 31 if [ "$?" = 0 ]; then
32 for LINE in $LINES; do 32 for LINE in $LINES; do
33 if [ -e $CONFI 33 if [ -e $CONFIGFS_DIR/$CHIP/$BANK/$LINE/hog ]; then
34 rmdir 34 rmdir $CONFIGFS_DIR/$CHIP/$BANK/$LINE/hog || \
35 35 fail "Unable to remove the hog"
36 fi 36 fi
37 37
38 rmdir $CONFIGF 38 rmdir $CONFIGFS_DIR/$CHIP/$BANK/$LINE || \
39 fail " 39 fail "Unable to remove the line"
40 done 40 done
41 fi 41 fi
42 42
43 rmdir $CONFIGFS_DIR/$CHIP/$BAN 43 rmdir $CONFIGFS_DIR/$CHIP/$BANK
44 done 44 done
45 45
46 rmdir $CONFIGFS_DIR/$CHIP || fail "Una 46 rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip"
47 } 47 }
48 48
49 configfs_cleanup() { 49 configfs_cleanup() {
50 for CHIP in `ls $CONFIGFS_DIR/`; do 50 for CHIP in `ls $CONFIGFS_DIR/`; do
51 remove_chip $CHIP 51 remove_chip $CHIP
52 done 52 done
53 } 53 }
54 54
55 create_chip() { 55 create_chip() {
56 local CHIP=$1 56 local CHIP=$1
57 57
58 mkdir $CONFIGFS_DIR/$CHIP 58 mkdir $CONFIGFS_DIR/$CHIP
59 } 59 }
60 60
61 create_bank() { 61 create_bank() {
62 local CHIP=$1 62 local CHIP=$1
63 local BANK=$2 63 local BANK=$2
64 64
65 mkdir $CONFIGFS_DIR/$CHIP/$BANK 65 mkdir $CONFIGFS_DIR/$CHIP/$BANK
66 } 66 }
67 67
68 set_label() { 68 set_label() {
69 local CHIP=$1 69 local CHIP=$1
70 local BANK=$2 70 local BANK=$2
71 local LABEL=$3 71 local LABEL=$3
72 72
73 echo $LABEL > $CONFIGFS_DIR/$CHIP/$BAN 73 echo $LABEL > $CONFIGFS_DIR/$CHIP/$BANK/label || fail "Unable to set the chip label"
74 } 74 }
75 75
76 set_num_lines() { 76 set_num_lines() {
77 local CHIP=$1 77 local CHIP=$1
78 local BANK=$2 78 local BANK=$2
79 local NUM_LINES=$3 79 local NUM_LINES=$3
80 80
81 echo $NUM_LINES > $CONFIGFS_DIR/$CHIP/ 81 echo $NUM_LINES > $CONFIGFS_DIR/$CHIP/$BANK/num_lines || \
82 fail "Unable to set the number 82 fail "Unable to set the number of lines"
83 } 83 }
84 84
85 set_line_name() { 85 set_line_name() {
86 local CHIP=$1 86 local CHIP=$1
87 local BANK=$2 87 local BANK=$2
88 local OFFSET=$3 88 local OFFSET=$3
89 local NAME=$4 89 local NAME=$4
90 local LINE_DIR=$CONFIGFS_DIR/$CHIP/$BA 90 local LINE_DIR=$CONFIGFS_DIR/$CHIP/$BANK/line$OFFSET
91 91
92 test -d $LINE_DIR || mkdir $LINE_DIR 92 test -d $LINE_DIR || mkdir $LINE_DIR
93 echo $NAME > $LINE_DIR/name || fail "U 93 echo $NAME > $LINE_DIR/name || fail "Unable to set the line name"
94 } 94 }
95 95
96 enable_chip() { 96 enable_chip() {
97 local CHIP=$1 97 local CHIP=$1
98 98
99 echo 1 > $CONFIGFS_DIR/$CHIP/live || f 99 echo 1 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to enable the chip"
100 } 100 }
101 101
102 disable_chip() { 102 disable_chip() {
103 local CHIP=$1 103 local CHIP=$1
104 104
105 echo 0 > $CONFIGFS_DIR/$CHIP/live || f 105 echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip"
106 } 106 }
107 107
108 configfs_chip_name() { 108 configfs_chip_name() {
109 local CHIP=$1 109 local CHIP=$1
110 local BANK=$2 110 local BANK=$2
111 111
112 cat $CONFIGFS_DIR/$CHIP/$BANK/chip_nam 112 cat $CONFIGFS_DIR/$CHIP/$BANK/chip_name 2> /dev/null || \
113 fail "unable to read the chip 113 fail "unable to read the chip name from configfs"
114 } 114 }
115 115
116 configfs_dev_name() { 116 configfs_dev_name() {
117 local CHIP=$1 117 local CHIP=$1
118 118
119 cat $CONFIGFS_DIR/$CHIP/dev_name 2> /d 119 cat $CONFIGFS_DIR/$CHIP/dev_name 2> /dev/null || \
120 fail "unable to read the devic 120 fail "unable to read the device name from configfs"
121 } 121 }
122 122
123 get_chip_num_lines() { 123 get_chip_num_lines() {
124 local CHIP=$1 124 local CHIP=$1
125 local BANK=$2 125 local BANK=$2
126 126
127 $BASE_DIR/gpio-chip-info /dev/`configf 127 $BASE_DIR/gpio-chip-info /dev/`configfs_chip_name $CHIP $BANK` num-lines || \
128 fail "unable to read the numbe 128 fail "unable to read the number of lines from the character device"
129 } 129 }
130 130
131 get_chip_label() { 131 get_chip_label() {
132 local CHIP=$1 132 local CHIP=$1
133 local BANK=$2 133 local BANK=$2
134 134
135 $BASE_DIR/gpio-chip-info /dev/`configf 135 $BASE_DIR/gpio-chip-info /dev/`configfs_chip_name $CHIP $BANK` label || \
136 fail "unable to read the chip 136 fail "unable to read the chip label from the character device"
137 } 137 }
138 138
139 get_line_name() { 139 get_line_name() {
140 local CHIP=$1 140 local CHIP=$1
141 local BANK=$2 141 local BANK=$2
142 local OFFSET=$3 142 local OFFSET=$3
143 143
144 $BASE_DIR/gpio-line-name /dev/`configf 144 $BASE_DIR/gpio-line-name /dev/`configfs_chip_name $CHIP $BANK` $OFFSET || \
145 fail "unable to read the line 145 fail "unable to read the line name from the character device"
146 } 146 }
147 147
148 sysfs_set_pull() { 148 sysfs_set_pull() {
149 local DEV=$1 149 local DEV=$1
150 local BANK=$2 150 local BANK=$2
151 local OFFSET=$3 151 local OFFSET=$3
152 local PULL=$4 152 local PULL=$4
153 local DEVNAME=`configfs_dev_name $DEV` 153 local DEVNAME=`configfs_dev_name $DEV`
154 local CHIPNAME=`configfs_chip_name $DE 154 local CHIPNAME=`configfs_chip_name $DEV $BANK`
155 local SYSFS_PATH="/sys/devices/platfor 155 local SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio$OFFSET/pull"
156 156
157 echo $PULL > $SYSFS_PATH || fail "Unab 157 echo $PULL > $SYSFS_PATH || fail "Unable to set line pull in sysfs"
158 } 158 }
159 159
160 # Load the gpio-sim module. This will pull in 160 # Load the gpio-sim module. This will pull in configfs if needed too.
161 modprobe gpio-sim || skip "unable to load the 161 modprobe gpio-sim || skip "unable to load the gpio-sim module"
162 # Make sure configfs is mounted at /sys/kernel 162 # Make sure configfs is mounted at /sys/kernel/config. Wait a bit if needed.
163 for IDX in `seq 5`; do 163 for IDX in `seq 5`; do
164 if [ "$IDX" -eq "5" ]; then 164 if [ "$IDX" -eq "5" ]; then
165 skip "configfs not mounted at 165 skip "configfs not mounted at /sys/kernel/config"
166 fi 166 fi
167 167
168 mountpoint -q /sys/kernel/config && br 168 mountpoint -q /sys/kernel/config && break
169 sleep 0.1 169 sleep 0.1
170 done 170 done
171 # If the module was already loaded: remove all 171 # If the module was already loaded: remove all previous chips
172 configfs_cleanup 172 configfs_cleanup
173 173
174 trap "exit 1" SIGTERM SIGINT 174 trap "exit 1" SIGTERM SIGINT
175 trap configfs_cleanup EXIT 175 trap configfs_cleanup EXIT
176 176
177 echo "1. chip_name and dev_name attributes" 177 echo "1. chip_name and dev_name attributes"
178 178
179 echo "1.1. Chip name is communicated to user" 179 echo "1.1. Chip name is communicated to user"
180 create_chip chip 180 create_chip chip
181 create_bank chip bank 181 create_bank chip bank
182 enable_chip chip 182 enable_chip chip
183 test -n `cat $CONFIGFS_DIR/chip/bank/chip_name 183 test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work"
184 remove_chip chip 184 remove_chip chip
185 185
186 echo "1.2. chip_name returns 'none' if the chi 186 echo "1.2. chip_name returns 'none' if the chip is still pending"
187 create_chip chip 187 create_chip chip
188 create_bank chip bank 188 create_bank chip bank
189 test "`cat $CONFIGFS_DIR/chip/bank/chip_name`" 189 test "`cat $CONFIGFS_DIR/chip/bank/chip_name`" = "none" || \
190 fail "chip_name doesn't return 'none' 190 fail "chip_name doesn't return 'none' for a pending chip"
191 remove_chip chip 191 remove_chip chip
192 192
193 echo "1.3. Device name is communicated to user 193 echo "1.3. Device name is communicated to user"
194 create_chip chip 194 create_chip chip
195 create_bank chip bank 195 create_bank chip bank
196 enable_chip chip 196 enable_chip chip
197 test -n `cat $CONFIGFS_DIR/chip/dev_name` || f 197 test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work"
198 remove_chip chip 198 remove_chip chip
199 199
200 echo "2. Creating and configuring simulated ch 200 echo "2. Creating and configuring simulated chips"
201 201
202 echo "2.1. Default number of lines is 1" 202 echo "2.1. Default number of lines is 1"
203 create_chip chip 203 create_chip chip
204 create_bank chip bank 204 create_bank chip bank
205 enable_chip chip 205 enable_chip chip
206 test "`get_chip_num_lines chip bank`" = "1" || 206 test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1"
207 remove_chip chip 207 remove_chip chip
208 208
209 echo "2.2. Number of lines can be specified" 209 echo "2.2. Number of lines can be specified"
210 create_chip chip 210 create_chip chip
211 create_bank chip bank 211 create_bank chip bank
212 set_num_lines chip bank 16 212 set_num_lines chip bank 16
213 enable_chip chip 213 enable_chip chip
214 test "`get_chip_num_lines chip bank`" = "16" | 214 test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16"
215 remove_chip chip 215 remove_chip chip
216 216
217 echo "2.3. Label can be set" 217 echo "2.3. Label can be set"
218 create_chip chip 218 create_chip chip
219 create_bank chip bank 219 create_bank chip bank
220 set_label chip bank foobar 220 set_label chip bank foobar
221 enable_chip chip 221 enable_chip chip
222 test "`get_chip_label chip bank`" = "foobar" | 222 test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect"
223 remove_chip chip 223 remove_chip chip
224 224
225 echo "2.4. Label can be left empty" 225 echo "2.4. Label can be left empty"
226 create_chip chip 226 create_chip chip
227 create_bank chip bank 227 create_bank chip bank
228 enable_chip chip 228 enable_chip chip
229 test -z "`cat $CONFIGFS_DIR/chip/bank/label`" 229 test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty"
230 remove_chip chip 230 remove_chip chip
231 231
232 echo "2.5. Line names can be configured" 232 echo "2.5. Line names can be configured"
233 create_chip chip 233 create_chip chip
234 create_bank chip bank 234 create_bank chip bank
235 set_num_lines chip bank 16 235 set_num_lines chip bank 16
236 set_line_name chip bank 0 foo 236 set_line_name chip bank 0 foo
237 set_line_name chip bank 2 bar 237 set_line_name chip bank 2 bar
238 enable_chip chip 238 enable_chip chip
239 test "`get_line_name chip bank 0`" = "foo" || 239 test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect"
240 test "`get_line_name chip bank 2`" = "bar" || 240 test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect"
241 remove_chip chip 241 remove_chip chip
242 242
243 echo "2.6. Line config can remain unused if of 243 echo "2.6. Line config can remain unused if offset is greater than number of lines"
244 create_chip chip 244 create_chip chip
245 create_bank chip bank 245 create_bank chip bank
246 set_num_lines chip bank 2 246 set_num_lines chip bank 2
247 set_line_name chip bank 5 foobar 247 set_line_name chip bank 5 foobar
248 enable_chip chip 248 enable_chip chip
249 test "`get_line_name chip bank 0`" = "" || fai 249 test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect"
250 test "`get_line_name chip bank 1`" = "" || fai 250 test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect"
251 remove_chip chip 251 remove_chip chip
252 252
253 echo "2.7. Line configfs directory names are s 253 echo "2.7. Line configfs directory names are sanitized"
254 create_chip chip 254 create_chip chip
255 create_bank chip bank 255 create_bank chip bank
256 mkdir $CONFIGFS_DIR/chip/bank/line12foobar 2> 256 mkdir $CONFIGFS_DIR/chip/bank/line12foobar 2> /dev/null && \
257 fail "invalid configfs line name accep 257 fail "invalid configfs line name accepted"
258 mkdir $CONFIGFS_DIR/chip/bank/line_no_offset 2 258 mkdir $CONFIGFS_DIR/chip/bank/line_no_offset 2> /dev/null && \
259 fail "invalid configfs line name accep 259 fail "invalid configfs line name accepted"
260 remove_chip chip 260 remove_chip chip
261 261
262 echo "2.8. Multiple chips can be created" 262 echo "2.8. Multiple chips can be created"
263 CHIPS="chip0 chip1 chip2" 263 CHIPS="chip0 chip1 chip2"
264 for CHIP in $CHIPS; do 264 for CHIP in $CHIPS; do
265 create_chip $CHIP 265 create_chip $CHIP
266 create_bank $CHIP bank 266 create_bank $CHIP bank
267 enable_chip $CHIP 267 enable_chip $CHIP
268 done 268 done
269 for CHIP in $CHIPS; do 269 for CHIP in $CHIPS; do
270 remove_chip $CHIP 270 remove_chip $CHIP
271 done 271 done
272 272
273 echo "2.9. Can't modify settings when chip is 273 echo "2.9. Can't modify settings when chip is live"
274 create_chip chip 274 create_chip chip
275 create_bank chip bank 275 create_bank chip bank
276 enable_chip chip 276 enable_chip chip
277 echo foobar > $CONFIGFS_DIR/chip/bank/label 2> 277 echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \
278 fail "Setting label of a live chip sho 278 fail "Setting label of a live chip should fail"
279 echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> 279 echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \
280 fail "Setting number of lines of a liv 280 fail "Setting number of lines of a live chip should fail"
281 remove_chip chip 281 remove_chip chip
282 282
283 echo "2.10. Can't create line items when chip 283 echo "2.10. Can't create line items when chip is live"
284 create_chip chip 284 create_chip chip
285 create_bank chip bank 285 create_bank chip bank
286 enable_chip chip 286 enable_chip chip
287 mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/nu 287 mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail"
288 remove_chip chip 288 remove_chip chip
289 289
290 echo "2.11. Probe errors are propagated to use 290 echo "2.11. Probe errors are propagated to user-space"
291 create_chip chip 291 create_chip chip
292 create_bank chip bank 292 create_bank chip bank
293 set_num_lines chip bank 99999 293 set_num_lines chip bank 99999
294 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null 294 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Probe error was not propagated"
295 remove_chip chip 295 remove_chip chip
296 296
297 echo "2.12. Cannot enable a chip without any G 297 echo "2.12. Cannot enable a chip without any GPIO banks"
298 create_chip chip 298 create_chip chip
299 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null 299 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Chip enabled without any GPIO banks"
300 remove_chip chip 300 remove_chip chip
301 301
302 echo "2.13. Duplicate chip labels are not allo 302 echo "2.13. Duplicate chip labels are not allowed"
303 create_chip chip 303 create_chip chip
304 create_bank chip bank0 304 create_bank chip bank0
305 set_label chip bank0 foobar 305 set_label chip bank0 foobar
306 create_bank chip bank1 306 create_bank chip bank1
307 set_label chip bank1 foobar 307 set_label chip bank1 foobar
308 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null 308 echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Duplicate chip labels were not rejected"
309 remove_chip chip 309 remove_chip chip
310 310
311 echo "2.14. Lines can be hogged" 311 echo "2.14. Lines can be hogged"
312 create_chip chip 312 create_chip chip
313 create_bank chip bank 313 create_bank chip bank
314 set_num_lines chip bank 8 314 set_num_lines chip bank 8
315 mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog 315 mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog
316 enable_chip chip 316 enable_chip chip
317 $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs 317 $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \
318 fail "Setting the value of a hogged li 318 fail "Setting the value of a hogged line shouldn't succeed"
319 remove_chip chip 319 remove_chip chip
320 320
321 echo "3. Controlling simulated chips" 321 echo "3. Controlling simulated chips"
322 322
323 echo "3.1. Pull can be set over sysfs" 323 echo "3.1. Pull can be set over sysfs"
324 create_chip chip 324 create_chip chip
325 create_bank chip bank 325 create_bank chip bank
326 set_num_lines chip bank 8 326 set_num_lines chip bank 8
327 enable_chip chip 327 enable_chip chip
328 sysfs_set_pull chip bank 0 pull-up 328 sysfs_set_pull chip bank 0 pull-up
329 $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip 329 $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 0
330 test "$?" = "1" || fail "pull set incorrectly" 330 test "$?" = "1" || fail "pull set incorrectly"
331 sysfs_set_pull chip bank 0 pull-down 331 sysfs_set_pull chip bank 0 pull-down
332 $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip 332 $BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1
333 test "$?" = "0" || fail "pull set incorrectly" 333 test "$?" = "0" || fail "pull set incorrectly"
334 remove_chip chip 334 remove_chip chip
335 335
336 echo "3.2. Pull can be read from sysfs" 336 echo "3.2. Pull can be read from sysfs"
337 create_chip chip 337 create_chip chip
338 create_bank chip bank 338 create_bank chip bank
339 set_num_lines chip bank 8 339 set_num_lines chip bank 8
340 enable_chip chip 340 enable_chip chip
341 DEVNAME=`configfs_dev_name chip` 341 DEVNAME=`configfs_dev_name chip`
342 CHIPNAME=`configfs_chip_name chip bank` 342 CHIPNAME=`configfs_chip_name chip bank`
343 SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHI 343 SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull
344 test `cat $SYSFS_PATH` = "pull-down" || fail " 344 test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed"
345 sysfs_set_pull chip bank 0 pull-up 345 sysfs_set_pull chip bank 0 pull-up
346 test `cat $SYSFS_PATH` = "pull-up" || fail "re 346 test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed"
347 remove_chip chip 347 remove_chip chip
348 348
349 echo "3.3. Incorrect input in sysfs is rejecte 349 echo "3.3. Incorrect input in sysfs is rejected"
350 create_chip chip 350 create_chip chip
351 create_bank chip bank 351 create_bank chip bank
352 set_num_lines chip bank 8 352 set_num_lines chip bank 8
353 enable_chip chip 353 enable_chip chip
354 DEVNAME=`configfs_dev_name chip` 354 DEVNAME=`configfs_dev_name chip`
355 CHIPNAME=`configfs_chip_name chip bank` 355 CHIPNAME=`configfs_chip_name chip bank`
356 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CH 356 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull"
357 echo foobar > $SYSFS_PATH 2> /dev/null && fail 357 echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected"
358 remove_chip chip 358 remove_chip chip
359 359
360 echo "3.4. Can't write to value" 360 echo "3.4. Can't write to value"
361 create_chip chip 361 create_chip chip
362 create_bank chip bank 362 create_bank chip bank
363 enable_chip chip 363 enable_chip chip
364 DEVNAME=`configfs_dev_name chip` 364 DEVNAME=`configfs_dev_name chip`
365 CHIPNAME=`configfs_chip_name chip bank` 365 CHIPNAME=`configfs_chip_name chip bank`
366 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CH 366 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
367 echo 1 > $SYSFS_PATH 2> /dev/null && fail "wri 367 echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly"
368 remove_chip chip 368 remove_chip chip
369 369
370 echo "4. Simulated GPIO chips are functional" 370 echo "4. Simulated GPIO chips are functional"
371 371
372 echo "4.1. Values can be read from sysfs" 372 echo "4.1. Values can be read from sysfs"
373 create_chip chip 373 create_chip chip
374 create_bank chip bank 374 create_bank chip bank
375 set_num_lines chip bank 8 375 set_num_lines chip bank 8
376 enable_chip chip 376 enable_chip chip
377 DEVNAME=`configfs_dev_name chip` 377 DEVNAME=`configfs_dev_name chip`
378 CHIPNAME=`configfs_chip_name chip bank` 378 CHIPNAME=`configfs_chip_name chip bank`
379 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CH 379 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
380 test `cat $SYSFS_PATH` = "0" || fail "incorrec 380 test `cat $SYSFS_PATH` = "0" || fail "incorrect value read from sysfs"
381 $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs 381 $BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 &
382 sleep 0.1 # FIXME Any better way? 382 sleep 0.1 # FIXME Any better way?
383 test `cat $SYSFS_PATH` = "1" || fail "incorrec 383 test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs"
384 kill $! 384 kill $!
385 remove_chip chip 385 remove_chip chip
386 386
387 echo "4.2. Bias settings work correctly" 387 echo "4.2. Bias settings work correctly"
388 create_chip chip 388 create_chip chip
389 create_bank chip bank 389 create_bank chip bank
390 set_num_lines chip bank 8 390 set_num_lines chip bank 8
391 enable_chip chip 391 enable_chip chip
392 DEVNAME=`configfs_dev_name chip` 392 DEVNAME=`configfs_dev_name chip`
393 CHIPNAME=`configfs_chip_name chip bank` 393 CHIPNAME=`configfs_chip_name chip bank`
394 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CH 394 SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
395 $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`co 395 $BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0
396 test `cat $SYSFS_PATH` = "1" || fail "bias set 396 test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work"
397 remove_chip chip 397 remove_chip chip
398 398
399 echo "GPIO $MODULE test PASS" 399 echo "GPIO $MODULE test PASS"
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