Merge branch 'modesetting-gem'

1 files changed, 336 insertions, 0 deletions

diff --git a/shared-core/radeon_ms_i2c.c b/shared-core/radeon_ms_i2c.c
new file mode 100644
index 00000000..f4468c1e
--- /dev/null
+++ b/shared-core/radeon_ms_i2c.c
@@ -0,0 +1,336 @@
+/*
+ * 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;
+	case GPIO_MONID:
+		v = MMIO_R(GPIO_MONID);
+		if ((GPIO_MONID__GPIO_MONID_1_INPUT & v)) {
+			v = 1;
+		} else {
+			v = 0;
+		}
+		break;
+	case GPIO_CRT2_DDC:
+		v = MMIO_R(GPIO_CRT2_DDC);
+		if ((GPIO_CRT2_DDC__CRT2_DDC_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;
+	case GPIO_MONID:
+		v = MMIO_R(GPIO_MONID);
+		if ((GPIO_MONID__GPIO_MONID_0_INPUT & v)) {
+			v = 1;
+		} else {
+			v = 0;
+		}
+		break;
+	case GPIO_CRT2_DDC:
+		v = MMIO_R(GPIO_CRT2_DDC);
+		if ((GPIO_CRT2_DDC__CRT2_DDC_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;
+	case GPIO_MONID:
+		v &= ~GPIO_MONID__GPIO_MONID_1_OUT_EN;
+		if (!clock) {
+			v |= GPIO_MONID__GPIO_MONID_1_OUT_EN;
+		}
+		break;
+	case GPIO_CRT2_DDC:
+		v &= ~GPIO_CRT2_DDC__CRT2_DDC_CLK_OUT_EN;
+		if (!clock) {
+			v |= GPIO_CRT2_DDC__CRT2_DDC_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;
+	case GPIO_MONID:
+		v &= ~GPIO_MONID__GPIO_MONID_0_OUT_EN;
+		if (!data) {
+			v |= GPIO_MONID__GPIO_MONID_0_OUT_EN;
+		}
+		break;
+	case GPIO_CRT2_DDC:
+		v &= ~GPIO_CRT2_DDC__CRT2_DDC_DATA_OUT_EN;
+		if (!data) {
+			v |= GPIO_CRT2_DDC__CRT2_DDC_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 (0x%X)\n",
+			 i2c->adapter.name, reg);
+		goto out_free;
+	}
+	DRM_INFO("[radeon_ms] registered I2C '%s' bus (0x%X)\n",
+		 i2c->adapter.name, reg);
+	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);
+}