diff options
Diffstat (limited to 'shared-core/radeon_ms_i2c.c')
| -rw-r--r-- | shared-core/radeon_ms_i2c.c | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/shared-core/radeon_ms_i2c.c b/shared-core/radeon_ms_i2c.c deleted file mode 100644 index f4468c1e..00000000 --- a/shared-core/radeon_ms_i2c.c +++ /dev/null @@ -1,336 +0,0 @@ -/* - * 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); -} |