From 5bffbd6e275efffbb649c20c528a11412ccf99cd Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 5 Apr 2007 13:34:50 +1000 Subject: initial userspace interface to get modes --- libdrm/Makefile.am | 4 +- linux-core/drm_crtc.c | 124 ++++++++++++++++++++++++++++++++++++++++++++++++- linux-core/drm_crtc.h | 15 +++++- linux-core/drm_drv.c | 1 + linux-core/drm_edid.c | 21 +++++---- linux-core/drm_modes.c | 7 ++- shared-core/drm.h | 72 ++++++++++++++++++++++++++++ 7 files changed, 229 insertions(+), 15 deletions(-) diff --git a/libdrm/Makefile.am b/libdrm/Makefile.am index e7e07e47..24c32038 100644 --- a/libdrm/Makefile.am +++ b/libdrm/Makefile.am @@ -23,9 +23,9 @@ libdrm_ladir = $(libdir) libdrm_la_LDFLAGS = -version-number 2:3:0 -no-undefined AM_CFLAGS = -I$(top_srcdir)/shared-core -libdrm_la_SOURCES = xf86drm.c xf86drmHash.c xf86drmRandom.c xf86drmSL.c +libdrm_la_SOURCES = xf86drm.c xf86drmHash.c xf86drmRandom.c xf86drmSL.c xf86drmMode.c libdrmincludedir = ${includedir} -libdrminclude_HEADERS = xf86drm.h xf86mm.h +libdrminclude_HEADERS = xf86drm.h xf86mm.h xf86drmMode.h EXTRA_DIST = ChangeLog TODO diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index a52d82bc..1311fa63 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -154,7 +154,7 @@ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, bool ret = false; struct drm_output *output; - adjusted_mode = drm_mode_duplicate(mode); + adjusted_mode = drm_mode_duplicate(dev, mode); crtc->enabled = drm_crtc_in_use(crtc); @@ -230,6 +230,7 @@ bool drm_crtc_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode, } /* XXX free adjustedmode */ + drm_crtc_mode_destroy(dev, adjusted_mode); ret = TRUE; /* TODO */ // if (scrn->pScreen) @@ -401,12 +402,48 @@ bool drm_output_rename(struct drm_output *output, const char *name) } EXPORT_SYMBOL(drm_output_rename); +struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev) +{ + int ret; + struct drm_display_mode *nmode; + + nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); + if (!nmode) + return NULL; + +again: + if (idr_pre_get(&dev->crtc_config.mode_idr, GFP_KERNEL) == 0) { + DRM_ERROR("Ran out memory getting a mode number\n"); + kfree(nmode); + return NULL; + } + + spin_lock(&dev->crtc_config.config_lock); + + ret = idr_get_new(&dev->crtc_config.mode_idr, nmode, &nmode->mode_id); + if (ret == -EAGAIN) { + udelay(1); + spin_unlock(&dev->crtc_config.config_lock); + goto again; + } + spin_unlock(&dev->crtc_config.config_lock); + return nmode; +} + +void drm_crtc_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) +{ + idr_remove(&dev->crtc_config.mode_idr, mode->mode_id); + + kfree(mode); +} + void drm_crtc_config_init(drm_device_t *dev) { spin_lock_init(&dev->crtc_config.config_lock); INIT_LIST_HEAD(&dev->crtc_config.fb_list); INIT_LIST_HEAD(&dev->crtc_config.crtc_list); INIT_LIST_HEAD(&dev->crtc_config.output_list); + idr_init(&dev->crtc_config.mode_idr); } EXPORT_SYMBOL(drm_crtc_config_init); @@ -441,7 +478,7 @@ void drm_framebuffer_set_object(drm_device_t *dev, unsigned long handle) ret = 0; out_err: mutex_unlock(&dev->struct_mutex); - return ret; + return; } EXPORT_SYMBOL(drm_framebuffer_set_object); @@ -538,3 +575,86 @@ void drm_crtc_config_cleanup(drm_device_t *dev) } EXPORT_SYMBOL(drm_crtc_config_cleanup); +void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in) +{ + + out->id = in->mode_id; + out->clock = in->clock; + out->hdisplay = in->hdisplay; + out->hsync_start = in->hsync_start; + out->hsync_end = in->hsync_end; + out->htotal = in->htotal; + out->hskew = in->hskew; + out->vdisplay = in->vdisplay; + out->vsync_start = in->vsync_start; + out->vsync_end = in->vsync_end; + out->vtotal = in->vtotal; + out->vscan = in->vscan; + + out->flags = in->flags; +} + + +/* IOCTL code from userspace */ +int drm_mode_getresources(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + drm_file_t *priv = filp->private_data; + drm_device_t *dev = priv->head->dev; + struct drm_mode_card_res __user *argp = (void __user *)arg; + struct drm_mode_card_res card_res; + struct list_head *lh; + struct drm_output *output; + struct drm_mode_modeinfo u_mode; + struct drm_display_mode *mode; + int retcode = 0; + int mode_count= 0; + + memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); + list_for_each_entry(output, &dev->crtc_config.output_list, + head) + { + list_for_each(lh, &output->modes) + mode_count++; + } + + if (copy_from_user(&card_res, argp, sizeof(card_res))) + return -EFAULT; + + if (card_res.count_modes >= mode_count) { + int copied = 0; + list_for_each_entry(output, &dev->crtc_config.output_list, + head) { + list_for_each_entry(mode, &output->modes, head) { + drm_crtc_convert_to_umode(&u_mode, mode); + if (copy_to_user(&card_res.modes[copied++], &u_mode, sizeof(struct drm_mode_modeinfo))) { + retcode = -EFAULT; + goto done; + } + } + } + } + + else { + list_for_each(lh, &dev->crtc_config.crtc_list) + card_res.count_crtcs++; + + list_for_each_entry(output, &dev->crtc_config.output_list, + head) + { + list_for_each(lh, &output->modes) + card_res.count_modes++; + card_res.count_outputs++; + } + } + +done: + DRM_DEBUG("Counted %d %d %d\n", card_res.count_crtcs, + card_res.count_outputs, + card_res.count_modes); + + if (copy_to_user(argp, &card_res, sizeof(card_res))) + return -EFAULT; + + return retcode; +} diff --git a/linux-core/drm_crtc.h b/linux-core/drm_crtc.h index 1be115d1..003946bc 100644 --- a/linux-core/drm_crtc.h +++ b/linux-core/drm_crtc.h @@ -9,6 +9,7 @@ #include #include #include +#include #include "drmP.h" #include "drm.h" @@ -86,6 +87,7 @@ struct drm_display_mode { /* Header */ struct list_head head; char name[DRM_DISPLAY_MODE_LEN]; + int mode_id; enum drm_mode_status status; int type; @@ -392,6 +394,7 @@ struct drm_crtc_config_funcs { */ struct drm_crtc_config { spinlock_t config_lock; + struct idr mode_idr; /* this is limited to one for now */ int num_fb; struct list_head fb_list; @@ -419,10 +422,20 @@ int drm_add_edid_modes(struct drm_output *output, struct i2c_adapter *adapter); void drm_mode_probed_add(struct drm_output *output, struct drm_display_mode *mode); void drm_mode_remove(struct drm_output *output, struct drm_display_mode *mode); -extern struct drm_display_mode *drm_mode_duplicate(struct drm_display_mode *mode); +extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, + struct drm_display_mode *mode); extern void drm_mode_debug_printmodeline(struct drm_device *dev, struct drm_display_mode *mode); extern void drm_crtc_config_init(struct drm_device *dev); extern void drm_crtc_config_cleanup(struct drm_device *dev); extern void drm_disable_unused_functions(struct drm_device *dev); + +extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev); +extern void drm_crtc_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); + +/* IOCTLs */ +extern int drm_mode_getresources(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); + #endif /* __DRM_CRTC_H__ */ + diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c index b95f796f..9877db13 100644 --- a/linux-core/drm_drv.c +++ b/linux-core/drm_drv.c @@ -123,6 +123,7 @@ static drm_ioctl_desc_t drm_ioctls[] = { DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW)] = {drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_IOCTL_MODE_GETRESOURCES)] = {drm_mode_getresources, DRM_ROOT_ONLY}, }; #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) diff --git a/linux-core/drm_edid.c b/linux-core/drm_edid.c index 3c123751..bf1ea94c 100644 --- a/linux-core/drm_edid.c +++ b/linux-core/drm_edid.c @@ -212,7 +212,8 @@ bad: * * Punts for now. */ -struct drm_display_mode *drm_mode_std(struct std_timing *t) +struct drm_display_mode *drm_mode_std(struct drm_device *dev, + struct std_timing *t) { // struct fb_videomode mode; @@ -221,7 +222,7 @@ struct drm_display_mode *drm_mode_std(struct std_timing *t) struct drm_display_mode *mode; int hsize = t->hsize * 8 + 248, vsize; - mode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); + mode = drm_crtc_mode_create(dev); if (!mode) return NULL; @@ -239,7 +240,8 @@ struct drm_display_mode *drm_mode_std(struct std_timing *t) return mode; } -struct drm_display_mode *drm_mode_detailed(struct detailed_timing *timing, +struct drm_display_mode *drm_mode_detailed(drm_device_t *dev, + struct detailed_timing *timing, bool preferred) { struct drm_display_mode *mode; @@ -254,7 +256,7 @@ struct drm_display_mode *drm_mode_detailed(struct detailed_timing *timing, return NULL; } - mode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); + mode = drm_crtc_mode_create(dev); if (!mode) return NULL; @@ -357,6 +359,7 @@ static struct drm_display_mode established_modes[] = { */ static int add_established_modes(struct drm_output *output, struct edid *edid) { + struct drm_device *dev = output->dev; unsigned long est_bits = edid->established_timings.t1 | (edid->established_timings.t2 << 8) | ((edid->established_timings.mfg_rsvd & 0x80) << 9); @@ -365,7 +368,7 @@ static int add_established_modes(struct drm_output *output, struct edid *edid) for (i = 0; i <= EDID_EST_TIMINGS; i++) if (est_bits & (1<dev; for (i = 0; i < EDID_STD_TIMINGS; i++) { struct std_timing *t = &edid->standard_timings[i]; @@ -391,7 +395,7 @@ static int add_standard_modes(struct drm_output *output, struct edid *edid) continue; drm_mode_probed_add(output, - drm_mode_std(&edid->standard_timings[i])); + drm_mode_std(dev, &edid->standard_timings[i])); modes++; } @@ -409,6 +413,7 @@ static int add_detailed_info(struct drm_output *output, struct edid *edid) { int i, j, modes = 0; bool preferred = 0; + struct drm_device *dev = output->dev; for (i = 0; i < EDID_DETAILED_TIMINGS; i++) { struct detailed_timing *timing = &edid->detailed_timings[i]; @@ -423,7 +428,7 @@ static int add_detailed_info(struct drm_output *output, struct edid *edid) if (i == 0 && edid->preferred_timing) preferred = 1; drm_mode_probed_add(output, - drm_mode_detailed(timing, preferred)); + drm_mode_detailed(dev, timing, preferred)); modes++; continue; } @@ -446,7 +451,7 @@ static int add_detailed_info(struct drm_output *output, struct edid *edid) struct std_timing *std; std = &data->data.timings[j]; - drm_mode_probed_add(output, drm_mode_std(std)); + drm_mode_probed_add(output, drm_mode_std(dev, std)); modes++; } break; diff --git a/linux-core/drm_modes.c b/linux-core/drm_modes.c index 2347a669..940fc981 100644 --- a/linux-core/drm_modes.c +++ b/linux-core/drm_modes.c @@ -115,15 +115,18 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags) EXPORT_SYMBOL(drm_mode_set_crtcinfo); -struct drm_display_mode *drm_mode_duplicate(struct drm_display_mode *mode) +struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, struct drm_display_mode *mode) { struct drm_display_mode *nmode; + int new_id; - nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); + nmode = drm_crtc_mode_create(dev); if (!nmode) return NULL; + new_id = nmode->mode_id; *nmode = *mode; + nmode->mode_id = new_id; INIT_LIST_HEAD(&nmode->head); return nmode; } diff --git a/shared-core/drm.h b/shared-core/drm.h index 3c59cd40..33194dcc 100644 --- a/shared-core/drm.h +++ b/shared-core/drm.h @@ -888,6 +888,74 @@ typedef union drm_mm_init_arg{ } rep; } drm_mm_init_arg_t; +/* + * Drm mode setting + */ + +struct drm_mode_modeinfo { + + unsigned int id; + + unsigned int clock; + unsigned short hdisplay, hsync_start, hsync_end, htotal, hskew; + unsigned short vdisplay, vsync_start, vsync_end, vtotal, vscan; + + unsigned int flags; +// int count_flag; +// unsigned int __user *modeFlags; +}; + +struct drm_mode_card_res { + + unsigned int fb_id; + + int count_crtcs; + int count_outputs; + int count_modes; + struct drm_mode_modeinfo __user *modes; + +}; + +struct drm_mode_crtc { + unsigned int crtc_id; /**< Id */ + unsigned int buffer_id; /**< Id of framebuffer */ + + int x, y; /**< Position on the frameuffer */ + unsigned int width, height; + unsigned int mode; /**< Current mode used */ + + int count_outputs; + unsigned int outputs; /**< Outputs that are connected */ + + int count_possibles; + unsigned int possibles; /**< Outputs that can be connected */ + + unsigned int __user *set_outputs; /**< Outputs to be connected */ + + int gamma_size; + +}; + +struct drm_mode_get_output { + + unsigned int output; /**< Id */ + unsigned int crtc; /**< Id of crtc */ + + unsigned int connection; + unsigned int width, height; /**< HxW in millimeters */ + unsigned int subpixel; + + int count_crtcs; + unsigned int crtcs; /**< possible crtc to connect to */ + + int count_clones; + unsigned int clones; /**< list of clones */ + + int count_modes; + unsigned int __user *modes; /**< list of modes it supports */ + +}; + /** * \name Ioctls Definitions */ @@ -959,6 +1027,10 @@ typedef union drm_mm_init_arg{ #define DRM_IOCTL_UPDATE_DRAW DRM_IOW(0x3f, drm_update_draw_t) +#define DRM_IOCTL_MODE_GETRESOURCES DRM_IOWR(0xA0, struct drm_mode_card_res) +#define DRM_IOCTL_MODE_GETCRTC DRM_IOWR(0xA1, drm_mode_crtc_t) +#define DRM_IOCTL_MODE_GETOUTPUT DRM_IOWR(0xA2, drm_mode_get_output_t) + /*@}*/ /** -- cgit v1.2.3