Lines Matching refs:lis3
116 static s16 lis3lv02d_read_8(struct lis3lv02d *lis3, int reg)
119 if (lis3->read(lis3, reg, &lo) < 0)
125 static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg)
129 lis3->read(lis3, reg - 1, &lo);
130 lis3->read(lis3, reg, &hi);
136 static s16 lis331dlh_read_data(struct lis3lv02d *lis3, int reg)
141 lis3->read(lis3, reg - 1, &lo);
142 lis3->read(lis3, reg, &hi);
145 return (s16) v >> lis3->shift_adj;
165 * @lis3: pointer to the device struct
172 static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z)
177 if (lis3->blkread) {
178 if (lis3->whoami == WAI_12B) {
180 lis3->blkread(lis3, OUTX_L, 6, (u8 *)data);
186 lis3->blkread(lis3, OUTX, 5, data);
191 position[0] = lis3->read_data(lis3, OUTX);
192 position[1] = lis3->read_data(lis3, OUTY);
193 position[2] = lis3->read_data(lis3, OUTZ);
197 position[i] = (position[i] * lis3->scale) / LIS3_ACCURACY;
199 *x = lis3lv02d_get_axis(lis3->ac.x, position);
200 *y = lis3lv02d_get_axis(lis3->ac.y, position);
201 *z = lis3lv02d_get_axis(lis3->ac.z, position);
211 static int lis3lv02d_get_odr_index(struct lis3lv02d *lis3)
216 lis3->read(lis3, CTRL_REG1, &ctrl);
217 ctrl &= lis3->odr_mask;
218 shift = ffs(lis3->odr_mask) - 1;
222 static int lis3lv02d_get_pwron_wait(struct lis3lv02d *lis3)
224 int odr_idx = lis3lv02d_get_odr_index(lis3);
225 int div = lis3->odrs[odr_idx];
233 dev_err(&lis3->pdev->dev, "Error unknown odrs-index: %d\n", odr_idx);
238 msleep(lis3->pwron_delay / div);
242 static int lis3lv02d_set_odr(struct lis3lv02d *lis3, int rate)
250 lis3->read(lis3, CTRL_REG1, &ctrl);
251 ctrl &= ~lis3->odr_mask;
252 len = 1 << hweight_long(lis3->odr_mask); /* # of possible values */
253 shift = ffs(lis3->odr_mask) - 1;
256 if (lis3->odrs[i] == rate) {
257 lis3->write(lis3, CTRL_REG1,
264 static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
273 mutex_lock(&lis3->mutex);
275 irq_cfg = lis3->irq_cfg;
276 if (lis3->whoami == WAI_8B) {
277 lis3->data_ready_count[IRQ_LINE0] = 0;
278 lis3->data_ready_count[IRQ_LINE1] = 0;
281 atomic_inc(&lis3->wake_thread);
282 lis3->irq_cfg = LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY;
283 lis3->read(lis3, CTRL_REG3, &ctrl_reg_data);
284 lis3->write(lis3, CTRL_REG3, (ctrl_reg_data &
289 if ((lis3->whoami == WAI_3DC) || (lis3->whoami == WAI_3DLH)) {
294 if (lis3->whoami == WAI_12B)
300 lis3->read(lis3, ctlreg, ®);
301 lis3->write(lis3, ctlreg, (reg | selftest));
302 ret = lis3lv02d_get_pwron_wait(lis3);
307 x = lis3->read_data(lis3, OUTX);
308 y = lis3->read_data(lis3, OUTY);
309 z = lis3->read_data(lis3, OUTZ);
312 lis3->write(lis3, ctlreg, reg);
313 ret = lis3lv02d_get_pwron_wait(lis3);
317 results[0] = x - lis3->read_data(lis3, OUTX);
318 results[1] = y - lis3->read_data(lis3, OUTY);
319 results[2] = z - lis3->read_data(lis3, OUTZ);
323 if (lis3->whoami == WAI_8B) {
325 atomic_dec(&lis3->wake_thread);
326 lis3->write(lis3, CTRL_REG3, ctrl_reg_data);
327 lis3->irq_cfg = irq_cfg;
330 lis3->data_ready_count[IRQ_LINE0] < 2) {
336 lis3->data_ready_count[IRQ_LINE1] < 2) {
342 if (lis3->pdata) {
346 if ((results[i] < lis3->pdata->st_min_limits[i]) ||
347 (results[i] > lis3->pdata->st_max_limits[i])) {
356 mutex_unlock(&lis3->mutex);
376 static inline void lis3_context_save(struct lis3lv02d *lis3)
379 for (i = 0; i < lis3->regs_size; i++)
380 lis3->read(lis3, lis3->regs[i], &lis3->reg_cache[i]);
381 lis3->regs_stored = true;
384 static inline void lis3_context_restore(struct lis3lv02d *lis3)
387 if (lis3->regs_stored)
388 for (i = 0; i < lis3->regs_size; i++)
389 lis3->write(lis3, lis3->regs[i], lis3->reg_cache[i]);
392 void lis3lv02d_poweroff(struct lis3lv02d *lis3)
394 if (lis3->reg_ctrl)
395 lis3_context_save(lis3);
397 lis3->write(lis3, CTRL_REG1, 0x00);
398 if (lis3->reg_ctrl)
399 lis3->reg_ctrl(lis3, LIS3_REG_OFF);
403 int lis3lv02d_poweron(struct lis3lv02d *lis3)
408 lis3->init(lis3);
416 if (lis3->pdata) {
417 lis3->read(lis3, CTRL_REG2, ®);
418 if (lis3->whoami == WAI_12B)
420 else if (lis3->whoami == WAI_3DLH)
424 lis3->write(lis3, CTRL_REG2, reg);
426 if (lis3->whoami == WAI_3DLH) {
427 lis3->read(lis3, CTRL_REG4, ®);
429 lis3->write(lis3, CTRL_REG4, reg);
433 err = lis3lv02d_get_pwron_wait(lis3);
437 if (lis3->reg_ctrl)
438 lis3_context_restore(lis3);
447 struct lis3lv02d *lis3 = input_get_drvdata(input);
450 mutex_lock(&lis3->mutex);
451 lis3lv02d_get_xyz(lis3, &x, &y, &z);
456 mutex_unlock(&lis3->mutex);
461 struct lis3lv02d *lis3 = input_get_drvdata(input);
463 if (lis3->pm_dev)
464 pm_runtime_get_sync(lis3->pm_dev);
466 if (lis3->pdata && lis3->whoami == WAI_8B && lis3->idev)
467 atomic_set(&lis3->wake_thread, 1);
479 struct lis3lv02d *lis3 = input_get_drvdata(input);
481 atomic_set(&lis3->wake_thread, 0);
482 if (lis3->pm_dev)
483 pm_runtime_put(lis3->pm_dev);
488 struct lis3lv02d *lis3 = data;
490 if (!test_bit(0, &lis3->misc_opened))
498 atomic_inc(&lis3->count);
500 wake_up_interruptible(&lis3->misc_wait);
501 kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
503 if (atomic_read(&lis3->wake_thread))
508 static void lis302dl_interrupt_handle_click(struct lis3lv02d *lis3)
510 struct input_dev *dev = lis3->idev;
513 mutex_lock(&lis3->mutex);
514 lis3->read(lis3, CLICK_SRC, &click_src);
517 input_report_key(dev, lis3->mapped_btns[0], 1);
518 input_report_key(dev, lis3->mapped_btns[0], 0);
522 input_report_key(dev, lis3->mapped_btns[1], 1);
523 input_report_key(dev, lis3->mapped_btns[1], 0);
527 input_report_key(dev, lis3->mapped_btns[2], 1);
528 input_report_key(dev, lis3->mapped_btns[2], 0);
531 mutex_unlock(&lis3->mutex);
534 static inline void lis302dl_data_ready(struct lis3lv02d *lis3, int index)
539 lis3lv02d_get_xyz(lis3, &dummy, &dummy, &dummy);
540 lis3->data_ready_count[index]++;
545 struct lis3lv02d *lis3 = data;
546 u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ1_MASK;
549 lis302dl_interrupt_handle_click(lis3);
551 lis302dl_data_ready(lis3, IRQ_LINE0);
553 lis3lv02d_joystick_poll(lis3->idev);
560 struct lis3lv02d *lis3 = data;
561 u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ2_MASK;
564 lis302dl_interrupt_handle_click(lis3);
566 lis302dl_data_ready(lis3, IRQ_LINE1);
568 lis3lv02d_joystick_poll(lis3->idev);
575 struct lis3lv02d *lis3 = container_of(file->private_data,
578 if (test_and_set_bit(0, &lis3->misc_opened))
581 if (lis3->pm_dev)
582 pm_runtime_get_sync(lis3->pm_dev);
584 atomic_set(&lis3->count, 0);
590 struct lis3lv02d *lis3 = container_of(file->private_data,
593 clear_bit(0, &lis3->misc_opened); /* release the device */
594 if (lis3->pm_dev)
595 pm_runtime_put(lis3->pm_dev);
602 struct lis3lv02d *lis3 = container_of(file->private_data,
613 add_wait_queue(&lis3->misc_wait, &wait);
616 data = atomic_xchg(&lis3->count, 0);
646 remove_wait_queue(&lis3->misc_wait, &wait);
653 struct lis3lv02d *lis3 = container_of(file->private_data,
656 poll_wait(file, &lis3->misc_wait, wait);
657 if (atomic_read(&lis3->count))
664 struct lis3lv02d *lis3 = container_of(file->private_data,
667 return fasync_helper(fd, file, on, &lis3->async_queue);
680 int lis3lv02d_joystick_enable(struct lis3lv02d *lis3)
687 if (lis3->idev)
698 input_dev->dev.parent = &lis3->pdev->dev;
703 max_val = (lis3->mdps_max_val * lis3->scale) / LIS3_ACCURACY;
704 if (lis3->whoami == WAI_12B) {
711 fuzz = (fuzz * lis3->scale) / LIS3_ACCURACY;
712 flat = (flat * lis3->scale) / LIS3_ACCURACY;
718 input_set_drvdata(input_dev, lis3);
719 lis3->idev = input_dev;
729 lis3->mapped_btns[0] = lis3lv02d_get_axis(abs(lis3->ac.x), btns);
730 lis3->mapped_btns[1] = lis3lv02d_get_axis(abs(lis3->ac.y), btns);
731 lis3->mapped_btns[2] = lis3lv02d_get_axis(abs(lis3->ac.z), btns);
733 err = input_register_device(lis3->idev);
741 lis3->idev = NULL;
747 void lis3lv02d_joystick_disable(struct lis3lv02d *lis3)
749 if (lis3->irq)
750 free_irq(lis3->irq, lis3);
751 if (lis3->pdata && lis3->pdata->irq2)
752 free_irq(lis3->pdata->irq2, lis3);
754 if (!lis3->idev)
757 if (lis3->irq)
758 misc_deregister(&lis3->miscdev);
759 input_unregister_device(lis3->idev);
760 lis3->idev = NULL;
765 static void lis3lv02d_sysfs_poweron(struct lis3lv02d *lis3)
775 if (lis3->pm_dev) {
776 pm_runtime_get_sync(lis3->pm_dev);
777 pm_runtime_put_noidle(lis3->pm_dev);
778 pm_schedule_suspend(lis3->pm_dev, LIS3_SYSFS_POWERDOWN_DELAY);
785 struct lis3lv02d *lis3 = dev_get_drvdata(dev);
793 lis3lv02d_sysfs_poweron(lis3);
794 switch (lis3lv02d_selftest(lis3, values)) {
813 struct lis3lv02d *lis3 = dev_get_drvdata(dev);
816 lis3lv02d_sysfs_poweron(lis3);
817 mutex_lock(&lis3->mutex);
818 lis3lv02d_get_xyz(lis3, &x, &y, &z);
819 mutex_unlock(&lis3->mutex);
826 struct lis3lv02d *lis3 = dev_get_drvdata(dev);
829 lis3lv02d_sysfs_poweron(lis3);
831 odr_idx = lis3lv02d_get_odr_index(lis3);
832 return sprintf(buf, "%d\n", lis3->odrs[odr_idx]);
839 struct lis3lv02d *lis3 = dev_get_drvdata(dev);
847 lis3lv02d_sysfs_poweron(lis3);
848 if (lis3lv02d_set_odr(lis3, rate))
871 static int lis3lv02d_add_fs(struct lis3lv02d *lis3)
873 lis3->pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
874 if (IS_ERR(lis3->pdev))
875 return PTR_ERR(lis3->pdev);
877 platform_set_drvdata(lis3->pdev, lis3);
878 return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group);
881 void lis3lv02d_remove_fs(struct lis3lv02d *lis3)
883 sysfs_remove_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group);
884 platform_device_unregister(lis3->pdev);
885 if (lis3->pm_dev) {
887 pm_runtime_barrier(lis3->pm_dev);
890 if (!pm_runtime_suspended(lis3->pm_dev))
891 lis3lv02d_poweroff(lis3);
893 pm_runtime_disable(lis3->pm_dev);
894 pm_runtime_set_suspended(lis3->pm_dev);
896 kfree(lis3->reg_cache);
900 static void lis3lv02d_8b_configure(struct lis3lv02d *lis3,
907 lis3->write(lis3, CLICK_CFG, p->click_flags);
908 lis3->write(lis3, CLICK_TIMELIMIT, p->click_time_limit);
909 lis3->write(lis3, CLICK_LATENCY, p->click_latency);
910 lis3->write(lis3, CLICK_WINDOW, p->click_window);
911 lis3->write(lis3, CLICK_THSZ, p->click_thresh_z & 0xf);
912 lis3->write(lis3, CLICK_THSY_X,
916 if (lis3->idev) {
917 input_set_capability(lis3->idev, EV_KEY, BTN_X);
918 input_set_capability(lis3->idev, EV_KEY, BTN_Y);
919 input_set_capability(lis3->idev, EV_KEY, BTN_Z);
924 lis3->write(lis3, FF_WU_CFG_1, p->wakeup_flags);
925 lis3->write(lis3, FF_WU_THS_1, p->wakeup_thresh & 0x7f);
927 lis3->write(lis3, FF_WU_DURATION_1, p->duration1 + 1);
932 lis3->write(lis3, FF_WU_CFG_2, p->wakeup_flags2);
933 lis3->write(lis3, FF_WU_THS_2, p->wakeup_thresh2 & 0x7f);
935 lis3->write(lis3, FF_WU_DURATION_2, p->duration2 + 1);
939 lis3->write(lis3, CTRL_REG2, ctrl2);
947 DRIVER_NAME, lis3);
954 int lis3lv02d_init_dt(struct lis3lv02d *lis3)
957 struct device_node *np = lis3->of_node;
961 if (!lis3->of_node)
1106 lis3->pdata = pdata;
1112 int lis3lv02d_init_dt(struct lis3lv02d *lis3)
1123 int lis3lv02d_init_device(struct lis3lv02d *lis3)
1129 lis3->whoami = lis3lv02d_read_8(lis3, WHO_AM_I);
1131 switch (lis3->whoami) {
1134 lis3->read_data = lis3lv02d_read_12;
1135 lis3->mdps_max_val = 2048;
1136 lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_12B;
1137 lis3->odrs = lis3_12_rates;
1138 lis3->odr_mask = CTRL1_DF0 | CTRL1_DF1;
1139 lis3->scale = LIS3_SENSITIVITY_12B;
1140 lis3->regs = lis3_wai12_regs;
1141 lis3->regs_size = ARRAY_SIZE(lis3_wai12_regs);
1145 lis3->read_data = lis3lv02d_read_8;
1146 lis3->mdps_max_val = 128;
1147 lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
1148 lis3->odrs = lis3_8_rates;
1149 lis3->odr_mask = CTRL1_DR;
1150 lis3->scale = LIS3_SENSITIVITY_8B;
1151 lis3->regs = lis3_wai8_regs;
1152 lis3->regs_size = ARRAY_SIZE(lis3_wai8_regs);
1156 lis3->read_data = lis3lv02d_read_8;
1157 lis3->mdps_max_val = 128;
1158 lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
1159 lis3->odrs = lis3_3dc_rates;
1160 lis3->odr_mask = CTRL1_ODR0|CTRL1_ODR1|CTRL1_ODR2|CTRL1_ODR3;
1161 lis3->scale = LIS3_SENSITIVITY_8B;
1165 lis3->read_data = lis331dlh_read_data;
1166 lis3->mdps_max_val = 2048; /* 12 bits for 2G */
1167 lis3->shift_adj = SHIFT_ADJ_2G;
1168 lis3->pwron_delay = LIS3_PWRON_DELAY_WAI_8B;
1169 lis3->odrs = lis3_3dlh_rates;
1170 lis3->odr_mask = CTRL1_DR0 | CTRL1_DR1;
1171 lis3->scale = LIS3DLH_SENSITIVITY_2G;
1174 pr_err("unknown sensor type 0x%X\n", lis3->whoami);
1178 lis3->reg_cache = kzalloc(max(sizeof(lis3_wai8_regs),
1181 if (lis3->reg_cache == NULL)
1184 mutex_init(&lis3->mutex);
1185 atomic_set(&lis3->wake_thread, 0);
1187 lis3lv02d_add_fs(lis3);
1188 err = lis3lv02d_poweron(lis3);
1190 lis3lv02d_remove_fs(lis3);
1194 if (lis3->pm_dev) {
1195 pm_runtime_set_active(lis3->pm_dev);
1196 pm_runtime_enable(lis3->pm_dev);
1199 if (lis3lv02d_joystick_enable(lis3))
1204 if (lis3->pdata) {
1205 struct lis3lv02d_platform_data *p = lis3->pdata;
1207 if (lis3->whoami == WAI_8B)
1208 lis3lv02d_8b_configure(lis3, p);
1212 lis3->irq_cfg = p->irq_cfg;
1214 lis3->write(lis3, CTRL_REG3, p->irq_cfg);
1217 lis3lv02d_set_odr(lis3, p->default_rate);
1221 if (!lis3->irq) {
1237 if (lis3->pdata && lis3->whoami == WAI_8B)
1242 err = request_threaded_irq(lis3->irq, lis302dl_interrupt,
1246 DRIVER_NAME, lis3);
1253 lis3->miscdev.minor = MISC_DYNAMIC_MINOR;
1254 lis3->miscdev.name = "freefall";
1255 lis3->miscdev.fops = &lis3lv02d_misc_fops;
1257 if (misc_register(&lis3->miscdev))