/* * Copyright 2007 Jérôme Glisse * Copyright 2007 Alex Deucher * Copyright 2007 Dave Airlie * All Rights Reserved. * * 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 on the rights to use, copy, modify, merge, * publish, distribute, sublicense, 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 above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * 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 ATI, VA LINUX SYSTEMS AND/OR * THEIR 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. */ #include "radeon_ms.h" static int get_clock(void *data) { struct radeon_ms_i2c *i2c = data; struct drm_radeon_private *dev_priv = i2c->drm_dev->dev_private; int v; switch (i2c->reg) { case VIPPAD_EN: v = MMIO_R(VIPPAD_Y); if ((REG_G(VIPPAD_Y, VIPPAD_Y_VHAD, v) & 2)) { v = 1; } else { v = 0; } break; case VIPPAD1_EN: v = MMIO_R(VIPPAD1_Y); if ((REG_G(VIPPAD1_Y, VIPPAD_Y_DVODATA, v) & 8)) { v = 1; } else { v = 0; } break; case GPIO_DDC1: v = MMIO_R(GPIO_DDC1); if ((GPIO_DDC1__DDC1_CLK_INPUT & v)) { v = 1; } else { v = 0; } break; case GPIO_DDC2: v = MMIO_R(GPIO_DDC2); if ((GPIO_DDC2__DDC2_CLK_INPUT & v)) { v = 1; } else { v = 0; } break; default: v = 0; break; } return v; } static int get_data(void *data) { struct radeon_ms_i2c *i2c = data; struct drm_radeon_private *dev_priv = i2c->drm_dev->dev_private; int v; switch (i2c->reg) { case VIPPAD_EN: v = MMIO_R(VIPPAD_Y); if ((REG_G(VIPPAD_Y, VIPPAD_Y_VHAD, v) & 1)) { v = 1; } else { v = 0; } break; case VIPPAD1_EN: v = MMIO_R(VIPPAD1_Y); if ((REG_G(VIPPAD1_Y, VIPPAD_Y_DVODATA, v) & 4)) { v = 1; } else { v = 0; } break; case GPIO_DDC1: v = MMIO_R(GPIO_DDC1); if ((GPIO_DDC1__DDC1_DATA_INPUT & v)) { v = 1; } else { v = 0; } break; case GPIO_DDC2: v = MMIO_R(GPIO_DDC2); if ((GPIO_DDC2__DDC2_DATA_INPUT & v)) { v = 1; } else { v = 0; } break; default: v = 0; break; } return v; } static void set_clock(void *i2c_priv, int clock) { struct radeon_ms_i2c *i2c = i2c_priv; struct drm_radeon_private *dev_priv = i2c->drm_dev->dev_private; int v, line; v = MMIO_R(i2c->reg); switch (i2c->reg) { case VIPPAD_EN: line = REG_G(VIPPAD_EN, VIPPAD_EN_VHAD, v) & ~2; v &= ~VIPPAD_EN__VIPPAD_EN_VHAD__MASK; if (!clock) { v |= REG_S(VIPPAD_EN, VIPPAD_EN_VHAD, line | 2); } else { v |= REG_S(VIPPAD_EN, VIPPAD_EN_VHAD, line); } break; case VIPPAD1_EN: line = REG_G(VIPPAD1_EN, VIPPAD_EN_DVODATA, v) & ~8; v &= ~VIPPAD1_EN__VIPPAD_EN_DVODATA__MASK; if (!clock) { v |= REG_S(VIPPAD1_EN, VIPPAD_EN_DVODATA, line | 8); } else { v |= REG_S(VIPPAD1_EN, VIPPAD_EN_DVODATA, line); } break; case GPIO_DDC1: v &= ~GPIO_DDC1__DDC1_CLK_OUT_EN; if (!clock) { v |= GPIO_DDC1__DDC1_CLK_OUT_EN; } break; case GPIO_DDC2: v &= ~GPIO_DDC2__DDC2_CLK_OUT_EN; if (!clock) { v |= GPIO_DDC2__DDC2_CLK_OUT_EN; } break; default: return; } MMIO_W(i2c->reg, v); } static void set_data(void *i2c_priv, int data) { struct radeon_ms_i2c *i2c = i2c_priv; struct drm_radeon_private *dev_priv = i2c->drm_dev->dev_private; int v, line; v = MMIO_R(i2c->reg); switch (i2c->reg) { case VIPPAD_EN: line = REG_G(VIPPAD_EN, VIPPAD_EN_VHAD, v) & ~1; v &= ~VIPPAD_EN__VIPPAD_EN_VHAD__MASK; if (!data) { v |= REG_S(VIPPAD_EN, VIPPAD_EN_VHAD, line | 1); } else { v |= REG_S(VIPPAD_EN, VIPPAD_EN_VHAD, line); } break; case VIPPAD1_EN: line = REG_G(VIPPAD1_EN, VIPPAD_EN_DVODATA, v) & ~4; v &= ~VIPPAD1_EN__VIPPAD_EN_DVODATA__MASK; if (!data) { v |= REG_S(VIPPAD1_EN, VIPPAD_EN_DVODATA, line | 4); } else { v |= REG_S(VIPPAD1_EN, VIPPAD_EN_DVODATA, line); } break; case GPIO_DDC1: v &= ~GPIO_DDC1__DDC1_DATA_OUT_EN; if (!data) { v |= GPIO_DDC1__DDC1_DATA_OUT_EN; } break; case GPIO_DDC2: v &= ~GPIO_DDC2__DDC2_DATA_OUT_EN; if (!data) { v |= GPIO_DDC2__DDC2_DATA_OUT_EN; } break; default: return; } MMIO_W(i2c->reg, v); } /** * radeon_ms_i2c_create - instantiate an radeon i2c bus on specified GPIO reg * @dev: DRM device * @output: driver specific output device * @reg: GPIO reg to use * @name: name for this bus * * Creates and registers a new i2c bus with the Linux i2c layer, for use * in output probing and control (e.g. DDC or SDVO control functions). * */ struct radeon_ms_i2c *radeon_ms_i2c_create(struct drm_device *dev, const uint32_t reg, const char *name) { struct radeon_ms_i2c *i2c; int ret; i2c = drm_alloc(sizeof(struct radeon_ms_i2c), DRM_MEM_DRIVER); if (i2c == NULL) { return NULL; } memset(i2c, 0, sizeof(struct radeon_ms_i2c)); i2c->drm_dev = dev; i2c->reg = reg; snprintf(i2c->adapter.name, I2C_NAME_SIZE, "radeon-%s", name); i2c->adapter.owner = THIS_MODULE; /* fixme need to take a look at what its needed for */ i2c->adapter.id = I2C_HW_B_RADEON; i2c->adapter.algo_data = &i2c->algo; i2c->adapter.dev.parent = &dev->pdev->dev; i2c->algo.setsda = set_data; i2c->algo.setscl = set_clock; i2c->algo.getsda = get_data; i2c->algo.getscl = get_clock; i2c->algo.udelay = 20; i2c->algo.timeout = usecs_to_jiffies(2200); i2c->algo.data = i2c; i2c_set_adapdata(&i2c->adapter, i2c); ret = i2c_bit_add_bus(&i2c->adapter); if(ret) { DRM_INFO("[radeon_ms] failed to register I2C '%s' bus\n", i2c->adapter.name); goto out_free; } DRM_INFO("[radeon_ms] registered I2C '%s' bus\n", i2c->adapter.name); return i2c; out_free: drm_free(i2c, sizeof(struct radeon_ms_i2c), DRM_MEM_DRIVER); return NULL; } /** * radeon_ms_i2c_destroy - unregister and free i2c bus resources * @output: channel to free * * Unregister the adapter from the i2c layer, then free the structure. */ void radeon_ms_i2c_destroy(struct radeon_ms_i2c *i2c) { if (i2c == NULL) { return; } i2c_del_adapter(&i2c->adapter); drm_free(i2c, sizeof(struct radeon_ms_i2c), DRM_MEM_DRIVER); } > 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 
/* radeon_irq.c -- IRQ handling for radeon -*- linux-c -*-
 *
 * Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 *
 * The Weather Channel (TM) funded Tungsten Graphics to develop the
 * initial release of the Radeon 8500 driver under the XFree86 license.
 * This notice must be preserved.
 *
 * 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, sublicense,
 * 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 above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT 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.
 *
 * Authors:
 *    Keith Whitwell <keith@tungstengraphics.com>
 *    Michel D�zer <michel@daenzer.net>
 */

#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"

static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv, u32 mask)
{
	u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) & mask;
	if (irqs)
		RADEON_WRITE(RADEON_GEN_INT_STATUS, irqs);
	return irqs;