litmus-rt.git - The LITMUS^RT kernel.

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author	Paul Vojta <vojta@math.berkeley.edu>	2009-07-09 02:57:46 -0400
committer	Takashi Iwai <tiwai@suse.de>	2009-07-09 03:14:29 -0400
commit	369693dc93533097c0ca7243affb4f3244c336e8 (patch)
tree	87450e074cdc85babc8665077b416bc3d560b6ef /arch/powerpc/mm/pgtable.c
parent	508f711090e06477081fd94cb9298b1b14dda9ff (diff)

ALSA: hda - fix beep tone calculation for IDT/STAC codecs

In the beep tone calculation for IDT/STAC codecs, lower numbers correspond to higher frequencies and vice versa. The current code has this backwards, resulting in beep frequencies which are way too high (and sound bad on tinny laptop speakers, resulting in complaints). [Also added hz <= 0 check by tiwai] Signed-off-by: Paul Vojta <vojta@math.berkeley.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de>

Diffstat (limited to 'arch/powerpc/mm/pgtable.c')

0 files changed, 0 insertions, 0 deletions

/* * drivers/staging/omapdrm/omap_crtc.c * * Copyright (C) 2011 Texas Instruments * Author: Rob Clark <rob@ti.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #include "omap_drv.h" #include <drm/drm_mode.h> #include "drm_crtc.h" #include "drm_crtc_helper.h" #define to_omap_crtc(x) container_of(x, struct omap_crtc, base) struct omap_crtc { struct drm_crtc base; struct drm_plane *plane; const char *name; int id; /* if there is a pending flip, these will be non-null: */ struct drm_pending_vblank_event *event; struct drm_framebuffer *old_fb; }; static void omap_crtc_destroy(struct drm_crtc *crtc) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); omap_crtc->plane->funcs->destroy(omap_crtc->plane); drm_crtc_cleanup(crtc); kfree(omap_crtc); } static void omap_crtc_dpms(struct drm_crtc *crtc, int mode) { struct omap_drm_private *priv = crtc->dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); int i; WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); for (i = 0; i < priv->num_planes; i++) { struct drm_plane *plane = priv->planes[i]; if (plane->crtc == crtc) WARN_ON(omap_plane_dpms(plane, mode)); } } static bool omap_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { return true; } static int omap_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode, int x, int y, struct drm_framebuffer *old_fb) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_plane *plane = omap_crtc->plane; return omap_plane_mode_set(plane, crtc, crtc->fb, 0, 0, mode->hdisplay, mode->vdisplay, x << 16, y << 16, mode->hdisplay << 16, mode->vdisplay << 16); } static void omap_crtc_prepare(struct drm_crtc *crtc) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); DBG("%s", omap_crtc->name); omap_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); } static void omap_crtc_commit(struct drm_crtc *crtc) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); DBG("%s", omap_crtc->name); omap_crtc_dpms(crtc, DRM_MODE_DPMS_ON); } static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_plane *plane = omap_crtc->plane; struct drm_display_mode *mode = &crtc->mode; return plane->funcs->update_plane(plane, crtc, crtc->fb, 0, 0, mode->hdisplay, mode->vdisplay, x << 16, y << 16, mode->hdisplay << 16, mode->vdisplay << 16); } static void omap_crtc_load_lut(struct drm_crtc *crtc) { } static void vblank_cb(void *arg) { static uint32_t sequence; struct drm_crtc *crtc = arg; struct drm_device *dev = crtc->dev; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_pending_vblank_event *event = omap_crtc->event; unsigned long flags; struct timeval now; WARN_ON(!event); omap_crtc->event = NULL; /* wakeup userspace */ if (event) { do_gettimeofday(&now); spin_lock_irqsave(&dev->event_lock, flags); /* TODO: we can't yet use the vblank time accounting, * because omapdss lower layer is the one that knows * the irq # and registers the handler, which more or * less defeats how drm_irq works.. for now just fake * the sequence number and use gettimeofday.. * event->event.sequence = drm_vblank_count_and_time( dev, omap_crtc->id, &now); */ event->event.sequence = sequence++; event->event.tv_sec = now.tv_sec; event->event.tv_usec = now.tv_usec; list_add_tail(&event->base.link, &event->base.file_priv->event_list); wake_up_interruptible(&event->base.file_priv->event_wait); spin_unlock_irqrestore(&dev->event_lock, flags); } } static void page_flip_cb(void *arg) { struct drm_crtc *crtc = arg; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_framebuffer *old_fb = omap_crtc->old_fb; struct drm_gem_object *bo; omap_crtc->old_fb = NULL; omap_crtc_mode_set_base(crtc, crtc->x, crtc->y, old_fb); /* really we'd like to setup the callback atomically w/ setting the * new scanout buffer to avoid getting stuck waiting an extra vblank * cycle.. for now go for correctness and later figure out speed.. */ omap_plane_on_endwin(omap_crtc->plane, vblank_cb, crtc); bo = omap_framebuffer_bo(crtc->fb, 0); drm_gem_object_unreference_unlocked(bo); } static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event) { struct drm_device *dev = crtc->dev; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct drm_gem_object *bo; DBG("%d -> %d", crtc->fb ? crtc->fb->base.id : -1, fb->base.id); if (omap_crtc->event) { dev_err(dev->dev, "already a pending flip\n"); return -EINVAL; } omap_crtc->old_fb = crtc->fb; omap_crtc->event = event; crtc->fb = fb; /* * Hold a reference temporarily until the crtc is updated * and takes the reference to the bo. This avoids it * getting freed from under us: */ bo = omap_framebuffer_bo(fb, 0); drm_gem_object_reference(bo); omap_gem_op_async(bo, OMAP_GEM_READ, page_flip_cb, crtc); return 0; } static int omap_crtc_set_property(struct drm_crtc *crtc, struct drm_property *property, uint64_t val) { struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct omap_drm_private *priv = crtc->dev->dev_private; if (property == priv->rotation_prop) { crtc->invert_dimensions = !!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270))); } return omap_plane_set_property(omap_crtc->plane, property, val); } static const struct drm_crtc_funcs omap_crtc_funcs = { .set_config = drm_crtc_helper_set_config, .destroy = omap_crtc_destroy, .page_flip = omap_crtc_page_flip_locked, .set_property = omap_crtc_set_property, }; static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = { .dpms = omap_crtc_dpms, .mode_fixup = omap_crtc_mode_fixup, .mode_set = omap_crtc_mode_set, .prepare = omap_crtc_prepare, .commit = omap_crtc_commit, .mode_set_base = omap_crtc_mode_set_base, .load_lut = omap_crtc_load_lut, }; /* initialize crtc */ struct drm_crtc *omap_crtc_init(struct drm_device *dev, struct omap_overlay *ovl, int id) { struct drm_crtc *crtc = NULL; struct omap_crtc *omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); DBG("%s", ovl->name); if (!omap_crtc) { dev_err(dev->dev, "could not allocate CRTC\n"); goto fail; } crtc = &omap_crtc->base; omap_crtc->plane = omap_plane_init(dev, ovl, (1 << id), true); omap_crtc->plane->crtc = crtc; omap_crtc->name = ovl->name; omap_crtc->id = id; drm_crtc_init(dev, crtc, &omap_crtc_funcs); drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs); omap_plane_install_properties(omap_crtc->plane, &crtc->base); return crtc; fail: if (crtc) omap_crtc_destroy(crtc); return NULL; }


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