Lines Matching +full:default +full:- +full:brightness
1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2006 Michael Hanselmann (linux-kernel@hansmi.ch)
79 struct appledisplay *pdata = urb->context; in appledisplay_complete()
80 struct device *dev = &pdata->udev->dev; in appledisplay_complete()
81 int status = urb->status; in appledisplay_complete()
88 case -EOVERFLOW: in appledisplay_complete()
91 ACD_URB_BUFFER_LEN, pdata->urb->actual_length); in appledisplay_complete()
93 case -ECONNRESET: in appledisplay_complete()
94 case -ENOENT: in appledisplay_complete()
95 case -ESHUTDOWN: in appledisplay_complete()
97 dev_dbg(dev, "%s - urb shuttingdown with status: %d\n", in appledisplay_complete()
100 default: in appledisplay_complete()
101 dev_dbg(dev, "%s - nonzero urb status received: %d\n", in appledisplay_complete()
106 switch(pdata->urbdata[1]) { in appledisplay_complete()
109 pdata->button_pressed = 1; in appledisplay_complete()
110 schedule_delayed_work(&pdata->work, 0); in appledisplay_complete()
113 default: in appledisplay_complete()
114 pdata->button_pressed = 0; in appledisplay_complete()
119 retval = usb_submit_urb(pdata->urb, GFP_ATOMIC); in appledisplay_complete()
121 dev_err(dev, "%s - usb_submit_urb failed with result %d\n", in appledisplay_complete()
131 mutex_lock(&pdata->sysfslock); in appledisplay_bl_update_status()
132 pdata->msgdata[0] = 0x10; in appledisplay_bl_update_status()
133 pdata->msgdata[1] = bd->props.brightness; in appledisplay_bl_update_status()
136 pdata->udev, in appledisplay_bl_update_status()
137 usb_sndctrlpipe(pdata->udev, 0), in appledisplay_bl_update_status()
142 pdata->msgdata, 2, in appledisplay_bl_update_status()
144 mutex_unlock(&pdata->sysfslock); in appledisplay_bl_update_status()
155 int retval, brightness; in appledisplay_bl_get_brightness() local
157 mutex_lock(&pdata->sysfslock); in appledisplay_bl_get_brightness()
159 pdata->udev, in appledisplay_bl_get_brightness()
160 usb_rcvctrlpipe(pdata->udev, 0), in appledisplay_bl_get_brightness()
165 pdata->msgdata, 2, in appledisplay_bl_get_brightness()
169 retval = -EMSGSIZE; in appledisplay_bl_get_brightness()
171 brightness = pdata->msgdata[1]; in appledisplay_bl_get_brightness()
173 mutex_unlock(&pdata->sysfslock); in appledisplay_bl_get_brightness()
178 return brightness; in appledisplay_bl_get_brightness()
192 retval = appledisplay_bl_get_brightness(pdata->bd); in appledisplay_work()
194 pdata->bd->props.brightness = retval; in appledisplay_work()
197 if (pdata->button_pressed) in appledisplay_work()
198 schedule_delayed_work(&pdata->work, HZ / 8); in appledisplay_work()
209 int retval, brightness; in appledisplay_probe() local
213 /* use only the first interrupt-in endpoint */ in appledisplay_probe()
214 retval = usb_find_int_in_endpoint(iface->cur_altsetting, &endpoint); in appledisplay_probe()
216 dev_err(&iface->dev, "Could not find int-in endpoint\n"); in appledisplay_probe()
220 int_in_endpointAddr = endpoint->bEndpointAddress; in appledisplay_probe()
225 retval = -ENOMEM; in appledisplay_probe()
229 pdata->udev = udev; in appledisplay_probe()
231 INIT_DELAYED_WORK(&pdata->work, appledisplay_work); in appledisplay_probe()
232 mutex_init(&pdata->sysfslock); in appledisplay_probe()
235 pdata->msgdata = kmalloc(ACD_MSG_BUFFER_LEN, GFP_KERNEL); in appledisplay_probe()
236 if (!pdata->msgdata) { in appledisplay_probe()
237 retval = -ENOMEM; in appledisplay_probe()
242 pdata->urb = usb_alloc_urb(0, GFP_KERNEL); in appledisplay_probe()
243 if (!pdata->urb) { in appledisplay_probe()
244 retval = -ENOMEM; in appledisplay_probe()
249 pdata->urbdata = usb_alloc_coherent(pdata->udev, ACD_URB_BUFFER_LEN, in appledisplay_probe()
250 GFP_KERNEL, &pdata->urb->transfer_dma); in appledisplay_probe()
251 if (!pdata->urbdata) { in appledisplay_probe()
252 retval = -ENOMEM; in appledisplay_probe()
253 dev_err(&iface->dev, "Allocating URB buffer failed\n"); in appledisplay_probe()
258 usb_fill_int_urb(pdata->urb, udev, in appledisplay_probe()
260 pdata->urbdata, ACD_URB_BUFFER_LEN, appledisplay_complete, in appledisplay_probe()
262 pdata->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; in appledisplay_probe()
263 if (usb_submit_urb(pdata->urb, GFP_KERNEL)) { in appledisplay_probe()
264 retval = -EIO; in appledisplay_probe()
265 dev_err(&iface->dev, "Submitting URB failed\n"); in appledisplay_probe()
271 atomic_inc_return(&count_displays) - 1); in appledisplay_probe()
275 pdata->bd = backlight_device_register(bl_name, NULL, pdata, in appledisplay_probe()
277 if (IS_ERR(pdata->bd)) { in appledisplay_probe()
278 dev_err(&iface->dev, "Backlight registration failed\n"); in appledisplay_probe()
279 retval = PTR_ERR(pdata->bd); in appledisplay_probe()
283 /* Try to get brightness */ in appledisplay_probe()
284 brightness = appledisplay_bl_get_brightness(pdata->bd); in appledisplay_probe()
286 if (brightness < 0) { in appledisplay_probe()
287 retval = brightness; in appledisplay_probe()
288 dev_err(&iface->dev, in appledisplay_probe()
289 "Error while getting initial brightness: %d\n", retval); in appledisplay_probe()
293 /* Set brightness in backlight device */ in appledisplay_probe()
294 pdata->bd->props.brightness = brightness; in appledisplay_probe()
305 if (pdata->urb) { in appledisplay_probe()
306 usb_kill_urb(pdata->urb); in appledisplay_probe()
307 cancel_delayed_work_sync(&pdata->work); in appledisplay_probe()
308 usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN, in appledisplay_probe()
309 pdata->urbdata, pdata->urb->transfer_dma); in appledisplay_probe()
310 usb_free_urb(pdata->urb); in appledisplay_probe()
312 if (!IS_ERR(pdata->bd)) in appledisplay_probe()
313 backlight_device_unregister(pdata->bd); in appledisplay_probe()
314 kfree(pdata->msgdata); in appledisplay_probe()
326 usb_kill_urb(pdata->urb); in appledisplay_disconnect()
327 cancel_delayed_work_sync(&pdata->work); in appledisplay_disconnect()
328 backlight_device_unregister(pdata->bd); in appledisplay_disconnect()
329 usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN, in appledisplay_disconnect()
330 pdata->urbdata, pdata->urb->transfer_dma); in appledisplay_disconnect()
331 usb_free_urb(pdata->urb); in appledisplay_disconnect()
332 kfree(pdata->msgdata); in appledisplay_disconnect()