diff options
Diffstat (limited to 'linux-core/radeon_i2c.c')
-rw-r--r-- | linux-core/radeon_i2c.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/linux-core/radeon_i2c.c b/linux-core/radeon_i2c.c deleted file mode 100644 index 94a485ba..00000000 --- a/linux-core/radeon_i2c.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright 2007-8 Advanced Micro Devices, Inc. - * Copyright 2008 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, 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 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 - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie - * Alex Deucher - */ -#include "drmP.h" -#include "radeon_drm.h" -#include "radeon_drv.h" - -/** - * radeon_ddc_probe - * - */ -bool radeon_ddc_probe(struct radeon_connector *radeon_connector) -{ - u8 out_buf[] = { 0x0, 0x0}; - u8 buf[2]; - int ret; - struct i2c_msg msgs[] = { - { - .addr = 0x50, - .flags = 0, - .len = 1, - .buf = out_buf, - }, - { - .addr = 0x50, - .flags = I2C_M_RD, - .len = 1, - .buf = buf, - } - }; - - ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2); - if (ret == 2) - return true; - - return false; -} - - -void radeon_i2c_do_lock(struct radeon_connector *radeon_connector, int lock_state) -{ - struct drm_radeon_private *dev_priv = radeon_connector->base.dev->dev_private; - uint32_t temp; - struct radeon_i2c_bus_rec *rec = &radeon_connector->ddc_bus->rec; - - if (lock_state) { - temp = RADEON_READ(rec->a_clk_reg); - temp &= ~(rec->a_clk_mask); - RADEON_WRITE(rec->a_clk_reg, temp); - - temp = RADEON_READ(rec->a_data_reg); - temp &= ~(rec->a_data_mask); - RADEON_WRITE(rec->a_data_reg, temp); - } - - temp = RADEON_READ(rec->mask_clk_reg); - if (lock_state) - temp |= rec->mask_clk_mask; - else - temp &= ~rec->mask_clk_mask; - RADEON_WRITE(rec->mask_clk_reg, temp); - temp = RADEON_READ(rec->mask_clk_reg); - - temp = RADEON_READ(rec->mask_data_reg); - if (lock_state) - temp |= rec->mask_data_mask; - else - temp &= ~rec->mask_data_mask; - RADEON_WRITE(rec->mask_data_reg, temp); - temp = RADEON_READ(rec->mask_data_reg); -} - -static int get_clock(void *i2c_priv) -{ - struct radeon_i2c_chan *i2c = i2c_priv; - struct drm_radeon_private *dev_priv = i2c->dev->dev_private; - struct radeon_i2c_bus_rec *rec = &i2c->rec; - uint32_t val; - - val = RADEON_READ(rec->get_clk_reg); - val &= rec->get_clk_mask; - - return (val != 0); -} - - -static int get_data(void *i2c_priv) -{ - struct radeon_i2c_chan *i2c = i2c_priv; - struct drm_radeon_private *dev_priv = i2c->dev->dev_private; - struct radeon_i2c_bus_rec *rec = &i2c->rec; - uint32_t val; - - val = RADEON_READ(rec->get_data_reg); - val &= rec->get_data_mask; - return (val != 0); -} - -static void set_clock(void *i2c_priv, int clock) -{ - struct radeon_i2c_chan *i2c = i2c_priv; - struct drm_radeon_private *dev_priv = i2c->dev->dev_private; - struct radeon_i2c_bus_rec *rec = &i2c->rec; - uint32_t val; - - val = RADEON_READ(rec->put_clk_reg) & (uint32_t)~(rec->put_clk_mask); - val |= clock ? 0 : rec->put_clk_mask; - RADEON_WRITE(rec->put_clk_reg, val); -} - -static void set_data(void *i2c_priv, int data) -{ - struct radeon_i2c_chan *i2c = i2c_priv; - struct drm_radeon_private *dev_priv = i2c->dev->dev_private; - struct radeon_i2c_bus_rec *rec = &i2c->rec; - uint32_t val; - - val = RADEON_READ(rec->put_data_reg) & (uint32_t)~(rec->put_data_mask); - val |= data ? 0 : rec->put_data_mask; - RADEON_WRITE(rec->put_data_reg, val); -} - -struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev, - struct radeon_i2c_bus_rec *rec, - const char *name) -{ - struct radeon_i2c_chan *i2c; - int ret; - - i2c = drm_calloc(1, sizeof(struct radeon_i2c_chan), DRM_MEM_DRIVER); - if (i2c == NULL) - return NULL; - - i2c->adapter.owner = THIS_MODULE; - i2c->adapter.id = I2C_HW_B_RADEON; - i2c->adapter.algo_data = &i2c->algo; - i2c->dev = 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->rec = *rec; - i2c_set_adapdata(&i2c->adapter, i2c); - - ret = i2c_bit_add_bus(&i2c->adapter); - if (ret) { - DRM_INFO("Failed to register i2c %s\n", name); - goto out_free; - } - - return i2c; -out_free: - drm_free(i2c, sizeof(struct radeon_i2c_chan), DRM_MEM_DRIVER); - return NULL; - -} - -void radeon_i2c_destroy(struct radeon_i2c_chan *i2c) -{ - if (!i2c) - return; - - i2c_del_adapter(&i2c->adapter); - drm_free(i2c, sizeof(struct radeon_i2c_chan), DRM_MEM_DRIVER); -} - -struct drm_encoder *radeon_best_encoder(struct drm_connector *connector) -{ - return NULL; -} - |