# SPDX-License-Identifier: GPL-2.0-only
mgag200-y := \
mgag200_bmc.o \
+ mgag200_ddc.o \
mgag200_drv.o \
mgag200_g200.o \
mgag200_g200eh.o \
mgag200_g200ew3.o \
mgag200_g200se.o \
mgag200_g200wb.o \
- mgag200_i2c.o \
mgag200_mode.o
obj-$(CONFIG_DRM_MGAG200) += mgag200.o
--- /dev/null
+/*
+ * 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/export.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/i2c.h>
+#include <linux/pci.h>
+
+#include <drm/drm_managed.h>
+
+#include "mgag200_ddc.h"
+#include "mgag200_drv.h"
+
+struct mgag200_ddc {
+ struct mga_device *mdev;
+
+ int data;
+ int clock;
+
+ struct i2c_algo_bit_data bit;
+ struct i2c_adapter adapter;
+};
+
+static int mga_i2c_read_gpio(struct mga_device *mdev)
+{
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
+ return RREG8(DAC_DATA);
+}
+
+static void mga_i2c_set_gpio(struct mga_device *mdev, int mask, int val)
+{
+ int tmp;
+
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL);
+ tmp = (RREG8(DAC_DATA) & mask) | val;
+ WREG_DAC(MGA1064_GEN_IO_CTL, tmp);
+ WREG_DAC(MGA1064_GEN_IO_DATA, 0);
+}
+
+static inline void mga_i2c_set(struct mga_device *mdev, int mask, int state)
+{
+ if (state)
+ state = 0;
+ else
+ state = mask;
+ mga_i2c_set_gpio(mdev, ~mask, state);
+}
+
+static void mga_gpio_setsda(void *data, int state)
+{
+ struct mgag200_ddc *ddc = data;
+
+ mga_i2c_set(ddc->mdev, ddc->data, state);
+}
+
+static void mga_gpio_setscl(void *data, int state)
+{
+ struct mgag200_ddc *ddc = data;
+
+ mga_i2c_set(ddc->mdev, ddc->clock, state);
+}
+
+static int mga_gpio_getsda(void *data)
+{
+ struct mgag200_ddc *ddc = data;
+
+ return (mga_i2c_read_gpio(ddc->mdev) & ddc->data) ? 1 : 0;
+}
+
+static int mga_gpio_getscl(void *data)
+{
+ struct mgag200_ddc *ddc = data;
+
+ return (mga_i2c_read_gpio(ddc->mdev) & ddc->clock) ? 1 : 0;
+}
+
+static void mgag200_ddc_release(struct drm_device *dev, void *res)
+{
+ struct mgag200_ddc *ddc = res;
+
+ i2c_del_adapter(&ddc->adapter);
+}
+
+struct i2c_adapter *mgag200_ddc_create(struct mga_device *mdev)
+{
+ struct drm_device *dev = &mdev->base;
+ const struct mgag200_device_info *info = mdev->info;
+ struct mgag200_ddc *ddc;
+ struct i2c_algo_bit_data *bit;
+ struct i2c_adapter *adapter;
+ int ret;
+
+ ddc = drmm_kzalloc(dev, sizeof(*ddc), GFP_KERNEL);
+ if (!ddc)
+ return ERR_PTR(-ENOMEM);
+
+ WREG_DAC(MGA1064_GEN_IO_CTL2, 1);
+ WREG_DAC(MGA1064_GEN_IO_DATA, 0xff);
+ WREG_DAC(MGA1064_GEN_IO_CTL, 0);
+
+ ddc->mdev = mdev;
+ ddc->data = BIT(info->i2c.data_bit);
+ ddc->clock = BIT(info->i2c.clock_bit);
+
+ bit = &ddc->bit;
+ bit->data = ddc;
+ bit->setsda = mga_gpio_setsda;
+ bit->setscl = mga_gpio_setscl;
+ bit->getsda = mga_gpio_getsda;
+ bit->getscl = mga_gpio_getscl;
+ bit->udelay = 10;
+ bit->timeout = usecs_to_jiffies(2200);
+
+ adapter = &ddc->adapter;
+ adapter->owner = THIS_MODULE;
+ adapter->algo_data = bit;
+ adapter->dev.parent = dev->dev;
+ snprintf(adapter->name, sizeof(adapter->name), "Matrox DDC bus");
+ i2c_set_adapdata(adapter, ddc);
+
+ ret = i2c_bit_add_bus(adapter);
+ if (ret)
+ return ERR_PTR(ret);
+
+ ret = drmm_add_action_or_reset(dev, mgag200_ddc_release, ddc);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return adapter;
+}
+++ /dev/null
-/*
- * 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/export.h>
-#include <linux/i2c-algo-bit.h>
-#include <linux/i2c.h>
-#include <linux/pci.h>
-
-#include <drm/drm_managed.h>
-
-#include "mgag200_ddc.h"
-#include "mgag200_drv.h"
-
-struct mgag200_ddc {
- struct mga_device *mdev;
-
- int data;
- int clock;
-
- struct i2c_algo_bit_data bit;
- struct i2c_adapter adapter;
-};
-
-static int mga_i2c_read_gpio(struct mga_device *mdev)
-{
- WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
- return RREG8(DAC_DATA);
-}
-
-static void mga_i2c_set_gpio(struct mga_device *mdev, int mask, int val)
-{
- int tmp;
-
- WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL);
- tmp = (RREG8(DAC_DATA) & mask) | val;
- WREG_DAC(MGA1064_GEN_IO_CTL, tmp);
- WREG_DAC(MGA1064_GEN_IO_DATA, 0);
-}
-
-static inline void mga_i2c_set(struct mga_device *mdev, int mask, int state)
-{
- if (state)
- state = 0;
- else
- state = mask;
- mga_i2c_set_gpio(mdev, ~mask, state);
-}
-
-static void mga_gpio_setsda(void *data, int state)
-{
- struct mgag200_ddc *ddc = data;
-
- mga_i2c_set(ddc->mdev, ddc->data, state);
-}
-
-static void mga_gpio_setscl(void *data, int state)
-{
- struct mgag200_ddc *ddc = data;
-
- mga_i2c_set(ddc->mdev, ddc->clock, state);
-}
-
-static int mga_gpio_getsda(void *data)
-{
- struct mgag200_ddc *ddc = data;
-
- return (mga_i2c_read_gpio(ddc->mdev) & ddc->data) ? 1 : 0;
-}
-
-static int mga_gpio_getscl(void *data)
-{
- struct mgag200_ddc *ddc = data;
-
- return (mga_i2c_read_gpio(ddc->mdev) & ddc->clock) ? 1 : 0;
-}
-
-static void mgag200_ddc_release(struct drm_device *dev, void *res)
-{
- struct mgag200_ddc *ddc = res;
-
- i2c_del_adapter(&ddc->adapter);
-}
-
-struct i2c_adapter *mgag200_ddc_create(struct mga_device *mdev)
-{
- struct drm_device *dev = &mdev->base;
- const struct mgag200_device_info *info = mdev->info;
- struct mgag200_ddc *ddc;
- struct i2c_algo_bit_data *bit;
- struct i2c_adapter *adapter;
- int ret;
-
- ddc = drmm_kzalloc(dev, sizeof(*ddc), GFP_KERNEL);
- if (!ddc)
- return ERR_PTR(-ENOMEM);
-
- WREG_DAC(MGA1064_GEN_IO_CTL2, 1);
- WREG_DAC(MGA1064_GEN_IO_DATA, 0xff);
- WREG_DAC(MGA1064_GEN_IO_CTL, 0);
-
- ddc->mdev = mdev;
- ddc->data = BIT(info->i2c.data_bit);
- ddc->clock = BIT(info->i2c.clock_bit);
-
- bit = &ddc->bit;
- bit->data = ddc;
- bit->setsda = mga_gpio_setsda;
- bit->setscl = mga_gpio_setscl;
- bit->getsda = mga_gpio_getsda;
- bit->getscl = mga_gpio_getscl;
- bit->udelay = 10;
- bit->timeout = usecs_to_jiffies(2200);
-
- adapter = &ddc->adapter;
- adapter->owner = THIS_MODULE;
- adapter->algo_data = bit;
- adapter->dev.parent = dev->dev;
- snprintf(adapter->name, sizeof(adapter->name), "Matrox DDC bus");
- i2c_set_adapdata(adapter, ddc);
-
- ret = i2c_bit_add_bus(adapter);
- if (ret)
- return ERR_PTR(ret);
-
- ret = drmm_add_action_or_reset(dev, mgag200_ddc_release, ddc);
- if (ret)
- return ERR_PTR(ret);
-
- return adapter;
-}
projects / ceph-client.git / commitdiff