[deliverable/linux.git] / drivers / gpu / drm / ast / ast_drv.c

/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 */
/*
 * Authors: Dave Airlie <airlied@redhat.com>
 */
#include <linux/module.h>
#include <linux/console.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>

#include "ast_drv.h"

int ast_modeset = -1;

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, ast_modeset, int, 0400);

#define PCI_VENDOR_ASPEED 0x1a03

static struct drm_driver driver;

#define AST_VGA_DEVICE(id, info) {		\
	.class = PCI_BASE_CLASS_DISPLAY << 16,	\
	.class_mask = 0xff0000,			\
	.vendor = PCI_VENDOR_ASPEED,			\
	.device = id,				\
	.subvendor = PCI_ANY_ID,		\
	.subdevice = PCI_ANY_ID,		\
	.driver_data = (unsigned long) info }

static const struct pci_device_id pciidlist[] = {
	AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
	AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
	/*	AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
	{0, 0, 0},
};

MODULE_DEVICE_TABLE(pci, pciidlist);

static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	return drm_get_pci_dev(pdev, ent, &driver);
}

static void
ast_pci_remove(struct pci_dev *pdev)
{
	struct drm_device *dev = pci_get_drvdata(pdev);

	drm_put_dev(dev);
}


static int ast_drm_freeze(struct drm_device *dev)
{
	drm_kms_helper_poll_disable(dev);

	pci_save_state(dev->pdev);

	console_lock();
	ast_fbdev_set_suspend(dev, 1);
	console_unlock();
	return 0;
}

static int ast_drm_thaw(struct drm_device *dev)
{
	int error = 0;

	ast_post_gpu(dev);

	drm_mode_config_reset(dev);
	drm_helper_resume_force_mode(dev);

	console_lock();
	ast_fbdev_set_suspend(dev, 0);
	console_unlock();
	return error;
}

static int ast_drm_resume(struct drm_device *dev)
{
	int ret;

	if (pci_enable_device(dev->pdev))
		return -EIO;

	ret = ast_drm_thaw(dev);
	if (ret)
		return ret;

	drm_kms_helper_poll_enable(dev);
	return 0;
}

static int ast_pm_suspend(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);
	int error;

	error = ast_drm_freeze(ddev);
	if (error)
		return error;

	pci_disable_device(pdev);
	pci_set_power_state(pdev, PCI_D3hot);
	return 0;
}
static int ast_pm_resume(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);
	return ast_drm_resume(ddev);
}

static int ast_pm_freeze(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);

	if (!ddev || !ddev->dev_private)
		return -ENODEV;
	return ast_drm_freeze(ddev);

}

static int ast_pm_thaw(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);
	return ast_drm_thaw(ddev);
}

static int ast_pm_poweroff(struct device *dev)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct drm_device *ddev = pci_get_drvdata(pdev);

	return ast_drm_freeze(ddev);
}

static const struct dev_pm_ops ast_pm_ops = {
	.suspend = ast_pm_suspend,
	.resume = ast_pm_resume,
	.freeze = ast_pm_freeze,
	.thaw = ast_pm_thaw,
	.poweroff = ast_pm_poweroff,
	.restore = ast_pm_resume,
};

static struct pci_driver ast_pci_driver = {
	.name = DRIVER_NAME,
	.id_table = pciidlist,
	.probe = ast_pci_probe,
	.remove = ast_pci_remove,
	.driver.pm = &ast_pm_ops,
};

static const struct file_operations ast_fops = {
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	.mmap = ast_mmap,
	.poll = drm_poll,
#ifdef CONFIG_COMPAT
	.compat_ioctl = drm_compat_ioctl,
#endif
	.read = drm_read,
};

static struct drm_driver driver = {
	.driver_features = DRIVER_MODESET | DRIVER_GEM,

	.load = ast_driver_load,
	.unload = ast_driver_unload,
	.set_busid = drm_pci_set_busid,

	.fops = &ast_fops,
	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,

	.gem_free_object = ast_gem_free_object,
	.dumb_create = ast_dumb_create,
	.dumb_map_offset = ast_dumb_mmap_offset,
	.dumb_destroy = drm_gem_dumb_destroy,

};

static int __init ast_init(void)
{
#ifdef CONFIG_VGA_CONSOLE
	if (vgacon_text_force() && ast_modeset == -1)
		return -EINVAL;
#endif

	if (ast_modeset == 0)
		return -EINVAL;
	return drm_pci_init(&driver, &ast_pci_driver);
}
static void __exit ast_exit(void)
{
	drm_pci_exit(&driver, &ast_pci_driver);
}

module_init(ast_init);
module_exit(ast_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
Commit	Line	Data
312fec14 DA	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the
	6	* "Software"), to deal in the Software without restriction, including
	7	* without limitation the rights to use, copy, modify, merge, publish,
	8	* distribute, sub license, and/or sell copies of the Software, and to
	9	* permit persons to whom the Software is furnished to do so, subject to
	10	* the following conditions:
	11	*
	12	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	13	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	14	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	15	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	16	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	17	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	18	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	19	*
	20	* The above copyright notice and this permission notice (including the
	21	* next paragraph) shall be included in all copies or substantial portions
	22	* of the Software.
	23	*
	24	*/
	25	/*
	26	* Authors: Dave Airlie <airlied@redhat.com>
	27	*/
	28	#include <linux/module.h>
	29	#include <linux/console.h>
	30
760285e7 DH	31	#include <drm/drmP.h>
760285e7 DH	32	#include <drm/drm_crtc_helper.h>
312fec14 DA	33
	34	#include "ast_drv.h"
	35
	36	int ast_modeset = -1;
	37
	38	MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
	39	module_param_named(modeset, ast_modeset, int, 0400);
	40
	41	#define PCI_VENDOR_ASPEED 0x1a03
	42
	43	static struct drm_driver driver;
	44
	45	#define AST_VGA_DEVICE(id, info) { \
	46	.class = PCI_BASE_CLASS_DISPLAY << 16, \
	47	.class_mask = 0xff0000, \
	48	.vendor = PCI_VENDOR_ASPEED, \
	49	.device = id, \
	50	.subvendor = PCI_ANY_ID, \
	51	.subdevice = PCI_ANY_ID, \
	52	.driver_data = (unsigned long) info }
	53
9baa3c34	54	static const struct pci_device_id pciidlist[] = {
312fec14 DA	55	AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
	56	AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
	57	/* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
	58	{0, 0, 0},
	59	};
	60
	61	MODULE_DEVICE_TABLE(pci, pciidlist);
	62
56550d94	63	static int ast_pci_probe(struct pci_dev pdev, const struct pci_device_id ent)
312fec14 DA	64	{
	65	return drm_get_pci_dev(pdev, ent, &driver);
	66	}
	67
	68	static void
	69	ast_pci_remove(struct pci_dev *pdev)
	70	{
	71	struct drm_device *dev = pci_get_drvdata(pdev);
	72
	73	drm_put_dev(dev);
	74	}
	75
	76
	77
	78	static int ast_drm_freeze(struct drm_device *dev)
	79	{
	80	drm_kms_helper_poll_disable(dev);
	81
	82	pci_save_state(dev->pdev);
	83
	84	console_lock();
	85	ast_fbdev_set_suspend(dev, 1);
	86	console_unlock();
	87	return 0;
	88	}
	89
	90	static int ast_drm_thaw(struct drm_device *dev)
	91	{
	92	int error = 0;
	93
	94	ast_post_gpu(dev);
	95
	96	drm_mode_config_reset(dev);
312fec14	97	drm_helper_resume_force_mode(dev);
312fec14 DA	98
	99	console_lock();
	100	ast_fbdev_set_suspend(dev, 0);
	101	console_unlock();
	102	return error;
	103	}
	104
	105	static int ast_drm_resume(struct drm_device *dev)
	106	{
	107	int ret;
	108
	109	if (pci_enable_device(dev->pdev))
	110	return -EIO;
	111
	112	ret = ast_drm_thaw(dev);
	113	if (ret)
	114	return ret;
	115
	116	drm_kms_helper_poll_enable(dev);
	117	return 0;
	118	}
	119
	120	static int ast_pm_suspend(struct device *dev)
	121	{
	122	struct pci_dev *pdev = to_pci_dev(dev);
	123	struct drm_device *ddev = pci_get_drvdata(pdev);
	124	int error;
	125
	126	error = ast_drm_freeze(ddev);
	127	if (error)
	128	return error;
	129
	130	pci_disable_device(pdev);
	131	pci_set_power_state(pdev, PCI_D3hot);
	132	return 0;
	133	}
	134	static int ast_pm_resume(struct device *dev)
	135	{
	136	struct pci_dev *pdev = to_pci_dev(dev);
	137	struct drm_device *ddev = pci_get_drvdata(pdev);
	138	return ast_drm_resume(ddev);
	139	}
	140
	141	static int ast_pm_freeze(struct device *dev)
	142	{
	143	struct pci_dev *pdev = to_pci_dev(dev);
	144	struct drm_device *ddev = pci_get_drvdata(pdev);
	145
	146	if (!ddev \|\| !ddev->dev_private)
	147	return -ENODEV;
	148	return ast_drm_freeze(ddev);
	149
	150	}
	151
	152	static int ast_pm_thaw(struct device *dev)
	153	{
	154	struct pci_dev *pdev = to_pci_dev(dev);
	155	struct drm_device *ddev = pci_get_drvdata(pdev);
	156	return ast_drm_thaw(ddev);
	157	}
	158
	159	static int ast_pm_poweroff(struct device *dev)
	160	{
	161	struct pci_dev *pdev = to_pci_dev(dev);
162	struct drm_device *ddev = pci_get_drvdata(pdev);
163
164	return ast_drm_freeze(ddev);
165	}
166
167	static const struct dev_pm_ops ast_pm_ops = {
168	.suspend = ast_pm_suspend,
169	.resume = ast_pm_resume,
170	.freeze = ast_pm_freeze,
171	.thaw = ast_pm_thaw,
172	.poweroff = ast_pm_poweroff,
173	.restore = ast_pm_resume,
174	};
175
176	static struct pci_driver ast_pci_driver = {
177	.name = DRIVER_NAME,
178	.id_table = pciidlist,
179	.probe = ast_pci_probe,
180	.remove = ast_pci_remove,
181	.driver.pm = &ast_pm_ops,
182	};
183
184	static const struct file_operations ast_fops = {
185	.owner = THIS_MODULE,
186	.open = drm_open,
187	.release = drm_release,
188	.unlocked_ioctl = drm_ioctl,
189	.mmap = ast_mmap,
190	.poll = drm_poll,
804d74ab KP	191	#ifdef CONFIG_COMPAT
	192	.compat_ioctl = drm_compat_ioctl,
	193	#endif
312fec14 DA	194	.read = drm_read,
	195	};
	196
	197	static struct drm_driver driver = {
28185647	198	.driver_features = DRIVER_MODESET \| DRIVER_GEM,
312fec14 DA	199
	200	.load = ast_driver_load,
	201	.unload = ast_driver_unload,
915b4d11	202	.set_busid = drm_pci_set_busid,
312fec14 DA	203
	204	.fops = &ast_fops,
	205	.name = DRIVER_NAME,
	206	.desc = DRIVER_DESC,
	207	.date = DRIVER_DATE,
	208	.major = DRIVER_MAJOR,
	209	.minor = DRIVER_MINOR,
	210	.patchlevel = DRIVER_PATCHLEVEL,
	211
312fec14 DA	212	.gem_free_object = ast_gem_free_object,
	213	.dumb_create = ast_dumb_create,
	214	.dumb_map_offset = ast_dumb_mmap_offset,
43387b37	215	.dumb_destroy = drm_gem_dumb_destroy,
312fec14 DA	216
	217	};
	218
	219	static int __init ast_init(void)
	220	{
4688a69d	221	#ifdef CONFIG_VGA_CONSOLE
312fec14 DA	222	if (vgacon_text_force() && ast_modeset == -1)
312fec14 DA	223	return -EINVAL;
4688a69d	224	#endif
312fec14 DA	225
	226	if (ast_modeset == 0)
	227	return -EINVAL;
	228	return drm_pci_init(&driver, &ast_pci_driver);
	229	}
	230	static void __exit ast_exit(void)
	231	{
	232	drm_pci_exit(&driver, &ast_pci_driver);
	233	}
	234
	235	module_init(ast_init);
	236	module_exit(ast_exit);
	237
	238	MODULE_AUTHOR(DRIVER_AUTHOR);
	239	MODULE_DESCRIPTION(DRIVER_DESC);
	240	MODULE_LICENSE("GPL and additional rights");
	241