From 21a93915d8a21518c5da76a739f9459ed7f99d6a Mon Sep 17 00:00:00 2001 From: Hong Liu Date: Thu, 17 Apr 2008 16:51:00 +0800 Subject: Porting DVO stuff Ported from Xorg intel 2d driver. Changed interfaces definitions, which needed to be changed later if other device wants to use these DVO stuff. --- linux-core/Makefile.kernel | 3 +- linux-core/dvo.h | 159 +++++++++++++++ linux-core/dvo_ch7017.c | 454 +++++++++++++++++++++++++++++++++++++++++ linux-core/dvo_ch7xxx.c | 368 +++++++++++++++++++++++++++++++++ linux-core/dvo_ivch.c | 459 +++++++++++++++++++++++++++++++++++++++++ linux-core/dvo_sil164.c | 302 +++++++++++++++++++++++++++ linux-core/dvo_tfp410.c | 335 ++++++++++++++++++++++++++++++ linux-core/intel_display.c | 3 +- linux-core/intel_drv.h | 1 + linux-core/intel_dvo.c | 493 +++++++++++++++++++++++++++++++++++++++++++++ 10 files changed, 2575 insertions(+), 2 deletions(-) create mode 100644 linux-core/dvo.h create mode 100644 linux-core/dvo_ch7017.c create mode 100644 linux-core/dvo_ch7xxx.c create mode 100644 linux-core/dvo_ivch.c create mode 100644 linux-core/dvo_sil164.c create mode 100644 linux-core/dvo_tfp410.c create mode 100644 linux-core/intel_dvo.c (limited to 'linux-core') diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel index 91decfc8..28f6ec06 100644 --- a/linux-core/Makefile.kernel +++ b/linux-core/Makefile.kernel @@ -22,7 +22,8 @@ i810-objs := i810_drv.o i810_dma.o i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o i915_fence.o \ i915_buffer.o intel_display.o intel_crt.o intel_lvds.o \ intel_sdvo.o intel_modes.o intel_i2c.o i915_init.o intel_fb.o \ - intel_tv.o i915_compat.o + intel_tv.o i915_compat.o intel_dvo.o dvo_ch7xxx.o \ + dvo_ch7017.o dvo_ivch.o dvo_tfp410.o dvo_sil164.o nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \ nouveau_object.o nouveau_irq.o nouveau_notifier.o nouveau_swmthd.o \ nouveau_sgdma.o nouveau_dma.o nouveau_buffer.o nouveau_fence.o \ diff --git a/linux-core/dvo.h b/linux-core/dvo.h new file mode 100644 index 00000000..c6c1dbdb --- /dev/null +++ b/linux-core/dvo.h @@ -0,0 +1,159 @@ +/* + * Copyright © 2006 Eric Anholt + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifndef _INTEL_DVO_H +#define _INTEL_DVO_H + +#include +#include "drmP.h" +#include "drm.h" +#include "drm_crtc.h" +#include "intel_drv.h" + +struct intel_dvo_device { + char *name; + int type; + /* DVOA/B/C output register */ + u32 dvo_reg; + /* GPIO register used for i2c bus to control this device */ + u32 gpio; + int slave_addr; + struct intel_i2c_chan *i2c_bus; + + const struct intel_dvo_dev_ops *dev_ops; + void *dev_priv; + + struct drm_display_mode *panel_fixed_mode; + bool panel_wants_dither; +}; + +struct intel_dvo_dev_ops { + /* + * Initialize the device at startup time. + * Returns NULL if the device does not exist. + */ + bool (*init)(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus); + + /* + * Called to allow the output a chance to create properties after the + * RandR objects have been created. + */ + void (*create_resources)(struct intel_dvo_device *dvo); + + /* + * Turn on/off output or set intermediate power levels if available. + * + * Unsupported intermediate modes drop to the lower power setting. + * If the mode is DPMSModeOff, the output must be disabled, + * as the DPLL may be disabled afterwards. + */ + void (*dpms)(struct intel_dvo_device *dvo, int mode); + + /* + * Saves the output's state for restoration on VT switch. + */ + void (*save)(struct intel_dvo_device *dvo); + + /* + * Restore's the output's state at VT switch. + */ + void (*restore)(struct intel_dvo_device *dvo); + + /* + * Callback for testing a video mode for a given output. + * + * This function should only check for cases where a mode can't + * be supported on the output specifically, and not represent + * generic CRTC limitations. + * + * \return MODE_OK if the mode is valid, or another MODE_* otherwise. + */ + int (*mode_valid)(struct intel_dvo_device *dvo, + struct drm_display_mode *mode); + + /* + * Callback to adjust the mode to be set in the CRTC. + * + * This allows an output to adjust the clock or even the entire set of + * timings, which is used for panels with fixed timings or for + * buses with clock limitations. + */ + bool (*mode_fixup)(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + + /* + * Callback for preparing mode changes on an output + */ + void (*prepare)(struct intel_dvo_device *dvo); + + /* + * Callback for committing mode changes on an output + */ + void (*commit)(struct intel_dvo_device *dvo); + + /* + * Callback for setting up a video mode after fixups have been made. + * + * This is only called while the output is disabled. The dpms callback + * must be all that's necessary for the output, to turn the output on + * after this function is called. + */ + void (*mode_set)(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode); + + /* + * Probe for a connected output, and return detect_status. + */ + enum drm_output_status (*detect)(struct intel_dvo_device *dvo); + + /** + * Query the device for the modes it provides. + * + * This function may also update MonInfo, mm_width, and mm_height. + * + * \return singly-linked list of modes or NULL if no modes found. + */ + struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo); + +#ifdef RANDR_12_INTERFACE + /** + * Callback when an output's property has changed. + */ + bool (*set_property)(struct intel_dvo_device *dvo, + struct drm_property *property, uint64_t val); +#endif + + /** + * Clean up driver-specific bits of the output + */ + void (*destroy) (struct intel_dvo_device *dvo); + + /** + * Debugging hook to dump device registers to log file + */ + void (*dump_regs)(struct intel_dvo_device *dvo); +}; + +#endif /* _INTEL_DVO_H */ diff --git a/linux-core/dvo_ch7017.c b/linux-core/dvo_ch7017.c new file mode 100644 index 00000000..8349da1b --- /dev/null +++ b/linux-core/dvo_ch7017.c @@ -0,0 +1,454 @@ +/* + * Copyright © 2006 Intel Corporation + * + * 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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: + * Eric Anholt + * + */ + +#include "dvo.h" + +#define CH7017_TV_DISPLAY_MODE 0x00 +#define CH7017_FLICKER_FILTER 0x01 +#define CH7017_VIDEO_BANDWIDTH 0x02 +#define CH7017_TEXT_ENHANCEMENT 0x03 +#define CH7017_START_ACTIVE_VIDEO 0x04 +#define CH7017_HORIZONTAL_POSITION 0x05 +#define CH7017_VERTICAL_POSITION 0x06 +#define CH7017_BLACK_LEVEL 0x07 +#define CH7017_CONTRAST_ENHANCEMENT 0x08 +#define CH7017_TV_PLL 0x09 +#define CH7017_TV_PLL_M 0x0a +#define CH7017_TV_PLL_N 0x0b +#define CH7017_SUB_CARRIER_0 0x0c +#define CH7017_CIV_CONTROL 0x10 +#define CH7017_CIV_0 0x11 +#define CH7017_CHROMA_BOOST 0x14 +#define CH7017_CLOCK_MODE 0x1c +#define CH7017_INPUT_CLOCK 0x1d +#define CH7017_GPIO_CONTROL 0x1e +#define CH7017_INPUT_DATA_FORMAT 0x1f +#define CH7017_CONNECTION_DETECT 0x20 +#define CH7017_DAC_CONTROL 0x21 +#define CH7017_BUFFERED_CLOCK_OUTPUT 0x22 +#define CH7017_DEFEAT_VSYNC 0x47 +#define CH7017_TEST_PATTERN 0x48 + +#define CH7017_POWER_MANAGEMENT 0x49 +/** Enables the TV output path. */ +#define CH7017_TV_EN (1 << 0) +#define CH7017_DAC0_POWER_DOWN (1 << 1) +#define CH7017_DAC1_POWER_DOWN (1 << 2) +#define CH7017_DAC2_POWER_DOWN (1 << 3) +#define CH7017_DAC3_POWER_DOWN (1 << 4) +/** Powers down the TV out block, and DAC0-3 */ +#define CH7017_TV_POWER_DOWN_EN (1 << 5) + +#define CH7017_VERSION_ID 0x4a + +#define CH7017_DEVICE_ID 0x4b +#define CH7017_DEVICE_ID_VALUE 0x1b +#define CH7018_DEVICE_ID_VALUE 0x1a +#define CH7019_DEVICE_ID_VALUE 0x19 + +#define CH7017_XCLK_D2_ADJUST 0x53 +#define CH7017_UP_SCALER_COEFF_0 0x55 +#define CH7017_UP_SCALER_COEFF_1 0x56 +#define CH7017_UP_SCALER_COEFF_2 0x57 +#define CH7017_UP_SCALER_COEFF_3 0x58 +#define CH7017_UP_SCALER_COEFF_4 0x59 +#define CH7017_UP_SCALER_VERTICAL_INC_0 0x5a +#define CH7017_UP_SCALER_VERTICAL_INC_1 0x5b +#define CH7017_GPIO_INVERT 0x5c +#define CH7017_UP_SCALER_HORIZONTAL_INC_0 0x5d +#define CH7017_UP_SCALER_HORIZONTAL_INC_1 0x5e + +#define CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT 0x5f +/**< Low bits of horizontal active pixel input */ + +#define CH7017_ACTIVE_INPUT_LINE_OUTPUT 0x60 +/** High bits of horizontal active pixel input */ +#define CH7017_LVDS_HAP_INPUT_MASK (0x7 << 0) +/** High bits of vertical active line output */ +#define CH7017_LVDS_VAL_HIGH_MASK (0x7 << 3) + +#define CH7017_VERTICAL_ACTIVE_LINE_OUTPUT 0x61 +/**< Low bits of vertical active line output */ + +#define CH7017_HORIZONTAL_ACTIVE_PIXEL_OUTPUT 0x62 +/**< Low bits of horizontal active pixel output */ + +#define CH7017_LVDS_POWER_DOWN 0x63 +/** High bits of horizontal active pixel output */ +#define CH7017_LVDS_HAP_HIGH_MASK (0x7 << 0) +/** Enables the LVDS power down state transition */ +#define CH7017_LVDS_POWER_DOWN_EN (1 << 6) +/** Enables the LVDS upscaler */ +#define CH7017_LVDS_UPSCALER_EN (1 << 7) +#define CH7017_LVDS_POWER_DOWN_DEFAULT_RESERVED 0x08 + +#define CH7017_LVDS_ENCODING 0x64 +#define CH7017_LVDS_DITHER_2D (1 << 2) +#define CH7017_LVDS_DITHER_DIS (1 << 3) +#define CH7017_LVDS_DUAL_CHANNEL_EN (1 << 4) +#define CH7017_LVDS_24_BIT (1 << 5) + +#define CH7017_LVDS_ENCODING_2 0x65 + +#define CH7017_LVDS_PLL_CONTROL 0x66 +/** Enables the LVDS panel output path */ +#define CH7017_LVDS_PANEN (1 << 0) +/** Enables the LVDS panel backlight */ +#define CH7017_LVDS_BKLEN (1 << 3) + +#define CH7017_POWER_SEQUENCING_T1 0x67 +#define CH7017_POWER_SEQUENCING_T2 0x68 +#define CH7017_POWER_SEQUENCING_T3 0x69 +#define CH7017_POWER_SEQUENCING_T4 0x6a +#define CH7017_POWER_SEQUENCING_T5 0x6b +#define CH7017_GPIO_DRIVER_TYPE 0x6c +#define CH7017_GPIO_DATA 0x6d +#define CH7017_GPIO_DIRECTION_CONTROL 0x6e + +#define CH7017_LVDS_PLL_FEEDBACK_DIV 0x71 +# define CH7017_LVDS_PLL_FEED_BACK_DIVIDER_SHIFT 4 +# define CH7017_LVDS_PLL_FEED_FORWARD_DIVIDER_SHIFT 0 +# define CH7017_LVDS_PLL_FEEDBACK_DEFAULT_RESERVED 0x80 + +#define CH7017_LVDS_PLL_VCO_CONTROL 0x72 +# define CH7017_LVDS_PLL_VCO_DEFAULT_RESERVED 0x80 +# define CH7017_LVDS_PLL_VCO_SHIFT 4 +# define CH7017_LVDS_PLL_POST_SCALE_DIV_SHIFT 0 + +#define CH7017_OUTPUTS_ENABLE 0x73 +# define CH7017_CHARGE_PUMP_LOW 0x0 +# define CH7017_CHARGE_PUMP_HIGH 0x3 +# define CH7017_LVDS_CHANNEL_A (1 << 3) +# define CH7017_LVDS_CHANNEL_B (1 << 4) +# define CH7017_TV_DAC_A (1 << 5) +# define CH7017_TV_DAC_B (1 << 6) +# define CH7017_DDC_SELECT_DC2 (1 << 7) + +#define CH7017_LVDS_OUTPUT_AMPLITUDE 0x74 +#define CH7017_LVDS_PLL_EMI_REDUCTION 0x75 +#define CH7017_LVDS_POWER_DOWN_FLICKER 0x76 + +#define CH7017_LVDS_CONTROL_2 0x78 +# define CH7017_LOOP_FILTER_SHIFT 5 +# define CH7017_PHASE_DETECTOR_SHIFT 0 + +#define CH7017_BANG_LIMIT_CONTROL 0x7f + +struct ch7017_priv { + uint8_t save_hapi; + uint8_t save_vali; + uint8_t save_valo; + uint8_t save_ailo; + uint8_t save_lvds_pll_vco; + uint8_t save_feedback_div; + uint8_t save_lvds_control_2; + uint8_t save_outputs_enable; + uint8_t save_lvds_power_down; + uint8_t save_power_management; +}; + +static void ch7017_dump_regs(struct intel_dvo_device *dvo); +static void ch7017_dpms(struct intel_dvo_device *dvo, int mode); + +static bool ch7017_read(struct intel_dvo_device *dvo, int addr, uint8_t *val) +{ + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[2]; + u8 in_buf[2]; + + struct i2c_msg msgs[] = { + { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = i2cbus->slave_addr, + .flags = I2C_M_RD, + .len = 1, + .buf = in_buf, + } + }; + + out_buf[0] = addr; + out_buf[1] = 0; + + if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) { + *val= in_buf[0]; + return true; + }; + + return false; +} + +static bool ch7017_write(struct intel_dvo_device *dvo, int addr, uint8_t val) +{ + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + uint8_t out_buf[2]; + struct i2c_msg msg = { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 2, + .buf = out_buf, + }; + + out_buf[0] = addr; + out_buf[1] = val; + + if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1) + return true; + + return false; +} + +/** Probes for a CH7017 on the given bus and slave address. */ +static bool ch7017_init(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus) +{ + struct ch7017_priv *priv; + uint8_t val; + + priv = kzalloc(sizeof(struct ch7017_priv), GFP_KERNEL); + if (priv == NULL) + return false; + + dvo->i2c_bus = i2cbus; + dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->dev_priv = priv; + + if (!ch7017_read(dvo, CH7017_DEVICE_ID, &val)) + goto fail; + + if (val != CH7017_DEVICE_ID_VALUE && + val != CH7018_DEVICE_ID_VALUE && + val != CH7019_DEVICE_ID_VALUE) { + DRM_DEBUG("ch701x not detected, got %d: from %s Slave %d.\n", + val, i2cbus->adapter.name,i2cbus->slave_addr); + goto fail; + } + + return true; +fail: + kfree(priv); + return false; +} + +static enum drm_output_status ch7017_detect(struct intel_dvo_device *dvo) +{ + return output_status_unknown; +} + +static enum drm_mode_status ch7017_mode_valid(struct intel_dvo_device *dvo, + struct drm_display_mode *mode) +{ + if (mode->clock > 160000) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +static void ch7017_mode_set(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + uint8_t lvds_pll_feedback_div, lvds_pll_vco_control; + uint8_t outputs_enable, lvds_control_2, lvds_power_down; + uint8_t horizontal_active_pixel_input; + uint8_t horizontal_active_pixel_output, vertical_active_line_output; + uint8_t active_input_line_output; + + DRM_DEBUG("Registers before mode setting\n"); + ch7017_dump_regs(dvo); + + /* LVDS PLL settings from page 75 of 7017-7017ds.pdf*/ + if (mode->clock < 100000) { + outputs_enable = CH7017_LVDS_CHANNEL_A | CH7017_CHARGE_PUMP_LOW; + lvds_pll_feedback_div = CH7017_LVDS_PLL_FEEDBACK_DEFAULT_RESERVED | + (2 << CH7017_LVDS_PLL_FEED_BACK_DIVIDER_SHIFT) | + (13 << CH7017_LVDS_PLL_FEED_FORWARD_DIVIDER_SHIFT); + lvds_pll_vco_control = CH7017_LVDS_PLL_VCO_DEFAULT_RESERVED | + (2 << CH7017_LVDS_PLL_VCO_SHIFT) | + (3 << CH7017_LVDS_PLL_POST_SCALE_DIV_SHIFT); + lvds_control_2 = (1 << CH7017_LOOP_FILTER_SHIFT) | + (0 << CH7017_PHASE_DETECTOR_SHIFT); + } else { + outputs_enable = CH7017_LVDS_CHANNEL_A | CH7017_CHARGE_PUMP_HIGH; + lvds_pll_feedback_div = CH7017_LVDS_PLL_FEEDBACK_DEFAULT_RESERVED | + (2 << CH7017_LVDS_PLL_FEED_BACK_DIVIDER_SHIFT) | + (3 << CH7017_LVDS_PLL_FEED_FORWARD_DIVIDER_SHIFT); + lvds_pll_feedback_div = 35; + lvds_control_2 = (3 << CH7017_LOOP_FILTER_SHIFT) | + (0 << CH7017_PHASE_DETECTOR_SHIFT); + if (1) { /* XXX: dual channel panel detection. Assume yes for now. */ + outputs_enable |= CH7017_LVDS_CHANNEL_B; + lvds_pll_vco_control = CH7017_LVDS_PLL_VCO_DEFAULT_RESERVED | + (2 << CH7017_LVDS_PLL_VCO_SHIFT) | + (13 << CH7017_LVDS_PLL_POST_SCALE_DIV_SHIFT); + } else { + lvds_pll_vco_control = CH7017_LVDS_PLL_VCO_DEFAULT_RESERVED | + (1 << CH7017_LVDS_PLL_VCO_SHIFT) | + (13 << CH7017_LVDS_PLL_POST_SCALE_DIV_SHIFT); + } + } + + horizontal_active_pixel_input = mode->hdisplay & 0x00ff; + + vertical_active_line_output = mode->vdisplay & 0x00ff; + horizontal_active_pixel_output = mode->hdisplay & 0x00ff; + + active_input_line_output = ((mode->hdisplay & 0x0700) >> 8) | + (((mode->vdisplay & 0x0700) >> 8) << 3); + + lvds_power_down = CH7017_LVDS_POWER_DOWN_DEFAULT_RESERVED | + (mode->hdisplay & 0x0700) >> 8; + + ch7017_dpms(dvo, DPMSModeOff); + ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT, + horizontal_active_pixel_input); + ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_OUTPUT, + horizontal_active_pixel_output); + ch7017_write(dvo, CH7017_VERTICAL_ACTIVE_LINE_OUTPUT, + vertical_active_line_output); + ch7017_write(dvo, CH7017_ACTIVE_INPUT_LINE_OUTPUT, + active_input_line_output); + ch7017_write(dvo, CH7017_LVDS_PLL_VCO_CONTROL, lvds_pll_vco_control); + ch7017_write(dvo, CH7017_LVDS_PLL_FEEDBACK_DIV, lvds_pll_feedback_div); + ch7017_write(dvo, CH7017_LVDS_CONTROL_2, lvds_control_2); + ch7017_write(dvo, CH7017_OUTPUTS_ENABLE, outputs_enable); + + /* Turn the LVDS back on with new settings. */ + ch7017_write(dvo, CH7017_LVDS_POWER_DOWN, lvds_power_down); + + DRM_DEBUG("Registers after mode setting\n"); + ch7017_dump_regs(dvo); +} + +/* set the CH7017 power state */ +static void ch7017_dpms(struct intel_dvo_device *dvo, int mode) +{ + uint8_t val; + + ch7017_read(dvo, CH7017_LVDS_POWER_DOWN, &val); + + /* Turn off TV/VGA, and never turn it on since we don't support it. */ + ch7017_write(dvo, CH7017_POWER_MANAGEMENT, + CH7017_DAC0_POWER_DOWN | + CH7017_DAC1_POWER_DOWN | + CH7017_DAC2_POWER_DOWN | + CH7017_DAC3_POWER_DOWN | + CH7017_TV_POWER_DOWN_EN); + + if (mode == DPMSModeOn) { + /* Turn on the LVDS */ + ch7017_write(dvo, CH7017_LVDS_POWER_DOWN, + val & ~CH7017_LVDS_POWER_DOWN_EN); + } else { + /* Turn off the LVDS */ + ch7017_write(dvo, CH7017_LVDS_POWER_DOWN, + val | CH7017_LVDS_POWER_DOWN_EN); + } + + /* XXX: Should actually wait for update power status somehow */ + udelay(20000); +} + +static void ch7017_dump_regs(struct intel_dvo_device *dvo) +{ + uint8_t val; + +#define DUMP(reg) \ +do { \ + ch7017_read(dvo, reg, &val); \ + DRM_DEBUG(#reg ": %02x\n", val); \ +} while (0) + + DUMP(CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT); + DUMP(CH7017_HORIZONTAL_ACTIVE_PIXEL_OUTPUT); + DUMP(CH7017_VERTICAL_ACTIVE_LINE_OUTPUT); + DUMP(CH7017_ACTIVE_INPUT_LINE_OUTPUT); + DUMP(CH7017_LVDS_PLL_VCO_CONTROL); + DUMP(CH7017_LVDS_PLL_FEEDBACK_DIV); + DUMP(CH7017_LVDS_CONTROL_2); + DUMP(CH7017_OUTPUTS_ENABLE); + DUMP(CH7017_LVDS_POWER_DOWN); +} + +static void ch7017_save(struct intel_dvo_device *dvo) +{ + struct ch7017_priv *priv = dvo->dev_priv; + + ch7017_read(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT, &priv->save_hapi); + ch7017_read(dvo, CH7017_VERTICAL_ACTIVE_LINE_OUTPUT, &priv->save_valo); + ch7017_read(dvo, CH7017_ACTIVE_INPUT_LINE_OUTPUT, &priv->save_ailo); + ch7017_read(dvo, CH7017_LVDS_PLL_VCO_CONTROL, &priv->save_lvds_pll_vco); + ch7017_read(dvo, CH7017_LVDS_PLL_FEEDBACK_DIV, &priv->save_feedback_div); + ch7017_read(dvo, CH7017_LVDS_CONTROL_2, &priv->save_lvds_control_2); + ch7017_read(dvo, CH7017_OUTPUTS_ENABLE, &priv->save_outputs_enable); + ch7017_read(dvo, CH7017_LVDS_POWER_DOWN, &priv->save_lvds_power_down); + ch7017_read(dvo, CH7017_POWER_MANAGEMENT, &priv->save_power_management); +} + +static void ch7017_restore(struct intel_dvo_device *dvo) +{ + struct ch7017_priv *priv = dvo->dev_priv; + + /* Power down before changing mode */ + ch7017_dpms(dvo, DPMSModeOff); + + ch7017_write(dvo, CH7017_HORIZONTAL_ACTIVE_PIXEL_INPUT, priv->save_hapi); + ch7017_write(dvo, CH7017_VERTICAL_ACTIVE_LINE_OUTPUT, priv->save_valo); + ch7017_write(dvo, CH7017_ACTIVE_INPUT_LINE_OUTPUT, priv->save_ailo); + ch7017_write(dvo, CH7017_LVDS_PLL_VCO_CONTROL, priv->save_lvds_pll_vco); + ch7017_write(dvo, CH7017_LVDS_PLL_FEEDBACK_DIV, priv->save_feedback_div); + ch7017_write(dvo, CH7017_LVDS_CONTROL_2, priv->save_lvds_control_2); + ch7017_write(dvo, CH7017_OUTPUTS_ENABLE, priv->save_outputs_enable); + ch7017_write(dvo, CH7017_LVDS_POWER_DOWN, priv->save_lvds_power_down); + ch7017_write(dvo, CH7017_POWER_MANAGEMENT, priv->save_power_management); +} + +static void ch7017_destroy(struct intel_dvo_device *dvo) +{ + struct ch7017_priv *priv = dvo->dev_priv; + + if (priv) { + kfree(priv); + dvo->dev_priv = NULL; + } +} + +struct intel_dvo_dev_ops ch7017_ops = { + .init = ch7017_init, + .detect = ch7017_detect, + .mode_valid = ch7017_mode_valid, + .mode_set = ch7017_mode_set, + .dpms = ch7017_dpms, + .dump_regs = ch7017_dump_regs, + .save = ch7017_save, + .restore = ch7017_restore, + .destroy = ch7017_destroy, +}; diff --git a/linux-core/dvo_ch7xxx.c b/linux-core/dvo_ch7xxx.c new file mode 100644 index 00000000..69827a7d --- /dev/null +++ b/linux-core/dvo_ch7xxx.c @@ -0,0 +1,368 @@ +/************************************************************************** + +Copyright © 2006 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 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 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 THE AUTHOR 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 "dvo.h" + +#define CH7xxx_REG_VID 0x4a +#define CH7xxx_REG_DID 0x4b + +#define CH7011_VID 0x83 /* 7010 as well */ +#define CH7009A_VID 0x84 +#define CH7009B_VID 0x85 +#define CH7301_VID 0x95 + +#define CH7xxx_VID 0x84 +#define CH7xxx_DID 0x17 + +#define CH7xxx_NUM_REGS 0x4c + +#define CH7xxx_CM 0x1c +#define CH7xxx_CM_XCM (1<<0) +#define CH7xxx_CM_MCP (1<<2) +#define CH7xxx_INPUT_CLOCK 0x1d +#define CH7xxx_GPIO 0x1e +#define CH7xxx_GPIO_HPIR (1<<3) +#define CH7xxx_IDF 0x1f + +#define CH7xxx_IDF_HSP (1<<3) +#define CH7xxx_IDF_VSP (1<<4) + +#define CH7xxx_CONNECTION_DETECT 0x20 +#define CH7xxx_CDET_DVI (1<<5) + +#define CH7301_DAC_CNTL 0x21 +#define CH7301_HOTPLUG 0x23 +#define CH7xxx_TCTL 0x31 +#define CH7xxx_TVCO 0x32 +#define CH7xxx_TPCP 0x33 +#define CH7xxx_TPD 0x34 +#define CH7xxx_TPVT 0x35 +#define CH7xxx_TLPF 0x36 +#define CH7xxx_TCT 0x37 +#define CH7301_TEST_PATTERN 0x48 + +#define CH7xxx_PM 0x49 +#define CH7xxx_PM_FPD (1<<0) +#define CH7301_PM_DACPD0 (1<<1) +#define CH7301_PM_DACPD1 (1<<2) +#define CH7301_PM_DACPD2 (1<<3) +#define CH7xxx_PM_DVIL (1<<6) +#define CH7xxx_PM_DVIP (1<<7) + +#define CH7301_SYNC_POLARITY 0x56 +#define CH7301_SYNC_RGB_YUV (1<<0) +#define CH7301_SYNC_POL_DVI (1<<5) + +/** @file + * driver for the Chrontel 7xxx DVI chip over DVO. + */ + +static struct ch7xxx_id_struct { + uint8_t vid; + char *name; +} ch7xxx_ids[] = { + { CH7011_VID, "CH7011" }, + { CH7009A_VID, "CH7009A" }, + { CH7009B_VID, "CH7009B" }, + { CH7301_VID, "CH7301" }, +}; + +struct ch7xxx_reg_state { + uint8_t regs[CH7xxx_NUM_REGS]; +}; + +struct ch7xxx_priv { + bool quiet; + + struct ch7xxx_reg_state save_reg; + struct ch7xxx_reg_state mode_reg; + uint8_t save_TCTL, save_TPCP, save_TPD, save_TPVT; + uint8_t save_TLPF, save_TCT, save_PM, save_IDF; +}; + +static void ch7xxx_save(struct intel_dvo_device *dvo); + +static char *ch7xxx_get_id(uint8_t vid) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ch7xxx_ids); i++) { + if (ch7xxx_ids[i].vid == vid) + return ch7xxx_ids[i].name; + } + + return NULL; +} + +/** Reads an 8 bit register */ +static bool ch7xxx_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) +{ + struct ch7xxx_priv *ch7xxx= dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[2]; + u8 in_buf[2]; + + struct i2c_msg msgs[] = { + { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = i2cbus->slave_addr, + .flags = I2C_M_RD, + .len = 1, + .buf = in_buf, + } + }; + + out_buf[0] = addr; + out_buf[1] = 0; + + if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) { + *ch = in_buf[0]; + return true; + }; + + if (!ch7xxx->quiet) { + DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + return false; +} + +/** Writes an 8 bit register */ +static bool ch7xxx_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) +{ + struct ch7xxx_priv *ch7xxx = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + uint8_t out_buf[2]; + struct i2c_msg msg = { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 2, + .buf = out_buf, + }; + + out_buf[0] = addr; + out_buf[1] = ch; + + if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1) + return true; + + if (!ch7xxx->quiet) { + DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + + return false; +} + +static bool ch7xxx_init(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus) +{ + /* this will detect the CH7xxx chip on the specified i2c bus */ + struct ch7xxx_priv *ch7xxx; + uint8_t vendor, device; + char *name; + + ch7xxx = kzalloc(sizeof(struct ch7xxx_priv), GFP_KERNEL); + if (ch7xxx == NULL) + return false; + + dvo->i2c_bus = i2cbus; + dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->dev_priv = ch7xxx; + ch7xxx->quiet = true; + + if (!ch7xxx_readb(dvo, CH7xxx_REG_VID, &vendor)) + goto out; + + name = ch7xxx_get_id(vendor); + if (!name) { + DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n", + vendor, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + + + if (!ch7xxx_readb(dvo, CH7xxx_REG_DID, &device)) + goto out; + + if (device != CH7xxx_DID) { + DRM_DEBUG("ch7xxx not detected; got 0x%02x from %s slave %d.\n", + vendor, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + + ch7xxx->quiet = FALSE; + DRM_DEBUG("Detected %s chipset, vendor/device ID 0x%02x/0x%02x\n", + name, vendor, device); + return true; +out: + kfree(ch7xxx); + return false; +} + +static enum drm_output_status ch7xxx_detect(struct intel_dvo_device *dvo) +{ + uint8_t cdet, orig_pm, pm; + + ch7xxx_readb(dvo, CH7xxx_PM, &orig_pm); + + pm = orig_pm; + pm &= ~CH7xxx_PM_FPD; + pm |= CH7xxx_PM_DVIL | CH7xxx_PM_DVIP; + + ch7xxx_writeb(dvo, CH7xxx_PM, pm); + + ch7xxx_readb(dvo, CH7xxx_CONNECTION_DETECT, &cdet); + + ch7xxx_writeb(dvo, CH7xxx_PM, orig_pm); + + if (cdet & CH7xxx_CDET_DVI) + return output_status_connected; + return output_status_disconnected; +} + +static enum drm_mode_status ch7xxx_mode_valid(struct intel_dvo_device *dvo, + struct drm_display_mode *mode) +{ + if (mode->clock > 165000) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +static void ch7xxx_mode_set(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + uint8_t tvco, tpcp, tpd, tlpf, idf; + + if (mode->clock <= 65000) { + tvco = 0x23; + tpcp = 0x08; + tpd = 0x16; + tlpf = 0x60; + } else { + tvco = 0x2d; + tpcp = 0x06; + tpd = 0x26; + tlpf = 0xa0; + } + + ch7xxx_writeb(dvo, CH7xxx_TCTL, 0x00); + ch7xxx_writeb(dvo, CH7xxx_TVCO, tvco); + ch7xxx_writeb(dvo, CH7xxx_TPCP, tpcp); + ch7xxx_writeb(dvo, CH7xxx_TPD, tpd); + ch7xxx_writeb(dvo, CH7xxx_TPVT, 0x30); + ch7xxx_writeb(dvo, CH7xxx_TLPF, tlpf); + ch7xxx_writeb(dvo, CH7xxx_TCT, 0x00); + + ch7xxx_readb(dvo, CH7xxx_IDF, &idf); + + idf &= ~(CH7xxx_IDF_HSP | CH7xxx_IDF_VSP); + if (mode->flags & V_PHSYNC) + idf |= CH7xxx_IDF_HSP; + + if (mode->flags & V_PVSYNC) + idf |= CH7xxx_IDF_HSP; + + ch7xxx_writeb(dvo, CH7xxx_IDF, idf); +} + +/* set the CH7xxx power state */ +static void ch7xxx_dpms(struct intel_dvo_device *dvo, int mode) +{ + if (mode == DPMSModeOn) + ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_DVIL | CH7xxx_PM_DVIP); + else + ch7xxx_writeb(dvo, CH7xxx_PM, CH7xxx_PM_FPD); +} + +static void ch7xxx_dump_regs(struct intel_dvo_device *dvo) +{ + struct ch7xxx_priv *ch7xxx = dvo->dev_priv; + int i; + + for (i = 0; i < CH7xxx_NUM_REGS; i++) { + if ((i % 8) == 0 ) + DRM_DEBUG("\n %02X: ", i); + DRM_DEBUG("%02X ", ch7xxx->mode_reg.regs[i]); + } +} + +static void ch7xxx_save(struct intel_dvo_device *dvo) +{ + struct ch7xxx_priv *ch7xxx= dvo->dev_priv; + + ch7xxx_readb(dvo, CH7xxx_TCTL, &ch7xxx->save_TCTL); + ch7xxx_readb(dvo, CH7xxx_TPCP, &ch7xxx->save_TPCP); + ch7xxx_readb(dvo, CH7xxx_TPD, &ch7xxx->save_TPD); + ch7xxx_readb(dvo, CH7xxx_TPVT, &ch7xxx->save_TPVT); + ch7xxx_readb(dvo, CH7xxx_TLPF, &ch7xxx->save_TLPF); + ch7xxx_readb(dvo, CH7xxx_PM, &ch7xxx->save_PM); + ch7xxx_readb(dvo, CH7xxx_IDF, &ch7xxx->save_IDF); +} + +static void ch7xxx_restore(struct intel_dvo_device *dvo) +{ + struct ch7xxx_priv *ch7xxx = dvo->dev_priv; + + ch7xxx_writeb(dvo, CH7xxx_TCTL, ch7xxx->save_TCTL); + ch7xxx_writeb(dvo, CH7xxx_TPCP, ch7xxx->save_TPCP); + ch7xxx_writeb(dvo, CH7xxx_TPD, ch7xxx->save_TPD); + ch7xxx_writeb(dvo, CH7xxx_TPVT, ch7xxx->save_TPVT); + ch7xxx_writeb(dvo, CH7xxx_TLPF, ch7xxx->save_TLPF); + ch7xxx_writeb(dvo, CH7xxx_IDF, ch7xxx->save_IDF); + ch7xxx_writeb(dvo, CH7xxx_PM, ch7xxx->save_PM); +} + +static void ch7xxx_destroy(struct intel_dvo_device *dvo) +{ + struct ch7xxx_priv *ch7xxx = dvo->dev_priv; + + if (ch7xxx) { + kfree(ch7xxx); + dvo->dev_priv = NULL; + } +} + +struct intel_dvo_dev_ops ch7xxx_ops = { + .init = ch7xxx_init, + .detect = ch7xxx_detect, + .mode_valid = ch7xxx_mode_valid, + .mode_set = ch7xxx_mode_set, + .dpms = ch7xxx_dpms, + .dump_regs = ch7xxx_dump_regs, + .save = ch7xxx_save, + .restore = ch7xxx_restore, + .destroy = ch7xxx_destroy, +}; diff --git a/linux-core/dvo_ivch.c b/linux-core/dvo_ivch.c new file mode 100644 index 00000000..5fce2462 --- /dev/null +++ b/linux-core/dvo_ivch.c @@ -0,0 +1,459 @@ +/* + * Copyright © 2006 Intel Corporation + * + * 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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: + * Eric Anholt + * + */ + +#include "dvo.h" + +/* + * register definitions for the i82807aa. + * + * Documentation on this chipset can be found in datasheet #29069001 at + * intel.com. + */ + +/* + * VCH Revision & GMBus Base Addr + */ +#define VR00 0x00 +# define VR00_BASE_ADDRESS_MASK 0x007f + +/* + * Functionality Enable + */ +#define VR01 0x01 + +/* + * Enable the panel fitter + */ +# define VR01_PANEL_FIT_ENABLE (1 << 3) +/* + * Enables the LCD display. + * + * This must not be set while VR01_DVO_BYPASS_ENABLE is set. + */ +# define VR01_LCD_ENABLE (1 << 2) +/** Enables the DVO repeater. */ +# define VR01_DVO_BYPASS_ENABLE (1 << 1) +/** Enables the DVO clock */ +# define VR01_DVO_ENABLE (1 << 0) + +/* + * LCD Interface Format + */ +#define VR10 0x10 +/** Enables LVDS output instead of CMOS */ +# define VR10_LVDS_ENABLE (1 << 4) +/** Enables 18-bit LVDS output. */ +# define VR10_INTERFACE_1X18 (0 << 2) +/** Enables 24-bit LVDS or CMOS output */ +# define VR10_INTERFACE_1X24 (1 << 2) +/** Enables 2x18-bit LVDS or CMOS output. */ +# define VR10_INTERFACE_2X18 (2 << 2) +/** Enables 2x24-bit LVDS output */ +# define VR10_INTERFACE_2X24 (3 << 2) + +/* + * VR20 LCD Horizontal Display Size + */ +#define VR20 0x20 + +/* + * LCD Vertical Display Size + */ +#define VR21 0x20 + +/* + * Panel power down status + */ +#define VR30 0x30 +/** Read only bit indicating that the panel is not in a safe poweroff state. */ +# define VR30_PANEL_ON (1 << 15) + +#define VR40 0x40 +# define VR40_STALL_ENABLE (1 << 13) +# define VR40_VERTICAL_INTERP_ENABLE (1 << 12) +# define VR40_ENHANCED_PANEL_FITTING (1 << 11) +# define VR40_HORIZONTAL_INTERP_ENABLE (1 << 10) +# define VR40_AUTO_RATIO_ENABLE (1 << 9) +# define VR40_CLOCK_GATING_ENABLE (1 << 8) + +/* + * Panel Fitting Vertical Ratio + * (((image_height - 1) << 16) / ((panel_height - 1))) >> 2 + */ +#define VR41 0x41 + +/* + * Panel Fitting Horizontal Ratio + * (((image_width - 1) << 16) / ((panel_width - 1))) >> 2 + */ +#define VR42 0x42 + +/* + * Horizontal Image Size + */ +#define VR43 0x43 + +/* VR80 GPIO 0 + */ +#define VR80 0x80 +#define VR81 0x81 +#define VR82 0x82 +#define VR83 0x83 +#define VR84 0x84 +#define VR85 0x85 +#define VR86 0x86 +#define VR87 0x87 + +/* VR88 GPIO 8 + */ +#define VR88 0x88 + +/* Graphics BIOS scratch 0 + */ +#define VR8E 0x8E +# define VR8E_PANEL_TYPE_MASK (0xf << 0) +# define VR8E_PANEL_INTERFACE_CMOS (0 << 4) +# define VR8E_PANEL_INTERFACE_LVDS (1 << 4) +# define VR8E_FORCE_DEFAULT_PANEL (1 << 5) + +/* Graphics BIOS scratch 1 + */ +#define VR8F 0x8F +# define VR8F_VCH_PRESENT (1 << 0) +# define VR8F_DISPLAY_CONN (1 << 1) +# define VR8F_POWER_MASK (0x3c) +# define VR8F_POWER_POS (2) + + +struct ivch_priv { + bool quiet; + + uint16_t width, height; + + uint16_t save_VR01; + uint16_t save_VR40; +}; + +#if 0 +struct vch_capabilities { + struct aimdb_block aimdb_block; + uint8_t panel_type; + uint8_t set_panel_type; + uint8_t slave_address; + uint8_t capabilities; +#define VCH_PANEL_FITTING_SUPPORT (0x3 << 0) +#define VCH_PANEL_FITTING_TEXT (1 << 2) +#define VCH_PANEL_FITTING_GRAPHICS (1 << 3) +#define VCH_PANEL_FITTING_RATIO (1 << 4) +#define VCH_DITHERING (1 << 5) + uint8_t backlight_gpio; + uint8_t set_panel_type_us_gpios; +} __attribute__ ((packed)); +#endif + +static void ivch_dump_regs(struct intel_dvo_device *dvo); + +/** + * Reads a register on the ivch. + * + * Each of the 256 registers are 16 bits long. + */ +static bool ivch_read(struct intel_dvo_device *dvo, int addr, uint16_t *data) +{ + struct ivch_priv *priv = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[2]; + u8 in_buf[2]; + + struct i2c_msg msgs[] = { + { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = i2cbus->slave_addr, + .flags = I2C_M_RD, + .len = 2, + .buf = in_buf, + } + }; + + out_buf[0] = addr; + out_buf[1] = 0; + + if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) { + *data = (in_buf[1] << 8) | in_buf[0]; + return true; + }; + + if (!priv->quiet) { + DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + return false; +} + +/** Writes a 16-bit register on the ivch */ +static bool ivch_write(struct intel_dvo_device *dvo, int addr, uint16_t data) +{ + struct ivch_priv *priv = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[3]; + struct i2c_msg msg = { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 3, + .buf = out_buf, + }; + + out_buf[0] = addr; + out_buf[1] = data & 0xff; + out_buf[2] = data >> 8; + + if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1) + return true; + + if (!priv->quiet) { + DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + + return false; +} + +/** Probes the given bus and slave address for an ivch */ +static bool ivch_init(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus) +{ + struct ivch_priv *priv; + uint16_t temp; + + priv = kzalloc(sizeof(struct ivch_priv), GFP_KERNEL); + if (priv == NULL) + return false; + + dvo->i2c_bus = i2cbus; + dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->dev_priv = priv; + priv->quiet = TRUE; + + if (!ivch_read(dvo, VR00, &temp)) + goto out; + priv->quiet = false; + + /* Since the identification bits are probably zeroes, which doesn't seem + * very unique, check that the value in the base address field matches + * the address it's responding on. + */ + if ((temp & VR00_BASE_ADDRESS_MASK) != dvo->slave_addr) { + DRM_DEBUG("ivch detect failed due to address mismatch " + "(%d vs %d)\n", + (temp & VR00_BASE_ADDRESS_MASK), dvo->slave_addr); + goto out; + } + +#if 0 + if (!xf86I2CDevInit(&priv->d)) { + goto out; + } +#endif + ivch_read(dvo, VR20, &priv->width); + ivch_read(dvo, VR21, &priv->height); + + return true; + +out: + kfree(priv); + return false; +} + +static enum drm_output_status ivch_detect(struct intel_dvo_device *dvo) +{ + return output_status_connected; +} + +static enum drm_mode_status ivch_mode_valid(struct intel_dvo_device *dvo, + struct drm_display_mode *mode) +{ + if (mode->clock > 112000) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +/** Sets the power state of the panel connected to the ivch */ +static void ivch_dpms(struct intel_dvo_device *dvo, int mode) +{ + int i; + uint16_t vr01, vr30, backlight; + + /* Set the new power state of the panel. */ + if (!ivch_read(dvo, VR01, &vr01)) + return; + + if (mode == DPMSModeOn) + backlight = 1; + else + backlight = 0; + ivch_write(dvo, VR80, backlight); + + if (mode == DPMSModeOn) + vr01 |= VR01_LCD_ENABLE | VR01_DVO_ENABLE; + else + vr01 &= ~(VR01_LCD_ENABLE | VR01_DVO_ENABLE); + + ivch_write(dvo, VR01, vr01); + + /* Wait for the panel to make its state transition */ + for (i = 0; i < 100; i++) { + if (!ivch_read(dvo, VR30, &vr30)) + break; + + if (((vr30 & VR30_PANEL_ON) != 0) == (mode == DPMSModeOn)) + break; + udelay(1000); + } + /* wait some more; vch may fail to resync sometimes without this */ + udelay(16 * 1000); +} + +static void ivch_mode_set(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + uint16_t vr40 = 0; + uint16_t vr01; + + vr01 = 0; + vr40 = (VR40_STALL_ENABLE | VR40_VERTICAL_INTERP_ENABLE | + VR40_HORIZONTAL_INTERP_ENABLE); + + if (mode->hdisplay != adjusted_mode->hdisplay || + mode->vdisplay != adjusted_mode->vdisplay) { + uint16_t x_ratio, y_ratio; + + vr01 |= VR01_PANEL_FIT_ENABLE; + vr40 |= VR40_CLOCK_GATING_ENABLE; + x_ratio = (((mode->hdisplay - 1) << 16) / + (adjusted_mode->hdisplay - 1)) >> 2; + y_ratio = (((mode->vdisplay - 1) << 16) / + (adjusted_mode->vdisplay - 1)) >> 2; + ivch_write (dvo, VR42, x_ratio); + ivch_write (dvo, VR41, y_ratio); + } else { + vr01 &= ~VR01_PANEL_FIT_ENABLE; + vr40 &= ~VR40_CLOCK_GATING_ENABLE; + } + vr40 &= ~VR40_AUTO_RATIO_ENABLE; + + ivch_write(dvo, VR01, vr01); + ivch_write(dvo, VR40, vr40); + + ivch_dump_regs(dvo); +} + +static void ivch_dump_regs(struct intel_dvo_device *dvo) +{ + uint16_t val; + + ivch_read(dvo, VR00, &val); + DRM_DEBUG("VR00: 0x%04x\n", val); + ivch_read(dvo, VR01, &val); + DRM_DEBUG("VR01: 0x%04x\n", val); + ivch_read(dvo, VR30, &val); + DRM_DEBUG("VR30: 0x%04x\n", val); + ivch_read(dvo, VR40, &val); + DRM_DEBUG("VR40: 0x%04x\n", val); + + /* GPIO registers */ + ivch_read(dvo, VR80, &val); + DRM_DEBUG("VR80: 0x%04x\n", val); + ivch_read(dvo, VR81, &val); + DRM_DEBUG("VR81: 0x%04x\n", val); + ivch_read(dvo, VR82, &val); + DRM_DEBUG("VR82: 0x%04x\n", val); + ivch_read(dvo, VR83, &val); + DRM_DEBUG("VR83: 0x%04x\n", val); + ivch_read(dvo, VR84, &val); + DRM_DEBUG("VR84: 0x%04x\n", val); + ivch_read(dvo, VR85, &val); + DRM_DEBUG("VR85: 0x%04x\n", val); + ivch_read(dvo, VR86, &val); + DRM_DEBUG("VR86: 0x%04x\n", val); + ivch_read(dvo, VR87, &val); + DRM_DEBUG("VR87: 0x%04x\n", val); + ivch_read(dvo, VR88, &val); + DRM_DEBUG("VR88: 0x%04x\n", val); + + /* Scratch register 0 - AIM Panel type */ + ivch_read(dvo, VR8E, &val); + DRM_DEBUG("VR8E: 0x%04x\n", val); + + /* Scratch register 1 - Status register */ + ivch_read(dvo, VR8F, &val); + DRM_DEBUG("VR8F: 0x%04x\n", val); +} + +static void ivch_save(struct intel_dvo_device *dvo) +{ + struct ivch_priv *priv = dvo->dev_priv; + + ivch_read(dvo, VR01, &priv->save_VR01); + ivch_read(dvo, VR40, &priv->save_VR40); +} + +static void ivch_restore(struct intel_dvo_device *dvo) +{ + struct ivch_priv *priv = dvo->dev_priv; + + ivch_write(dvo, VR01, priv->save_VR01); + ivch_write(dvo, VR40, priv->save_VR40); +} + +static void ivch_destroy(struct intel_dvo_device *dvo) +{ + struct ivch_priv *priv = dvo->dev_priv; + + if (priv) { + kfree(priv); + dvo->dev_priv = NULL; + } +} + +struct intel_dvo_dev_ops ivch_ops= { + .init = ivch_init, + .dpms = ivch_dpms, + .save = ivch_save, + .restore = ivch_restore, + .mode_valid = ivch_mode_valid, + .mode_set = ivch_mode_set, + .detect = ivch_detect, + .dump_regs = ivch_dump_regs, + .destroy = ivch_destroy, +}; diff --git a/linux-core/dvo_sil164.c b/linux-core/dvo_sil164.c new file mode 100644 index 00000000..0cee59b1 --- /dev/null +++ b/linux-core/dvo_sil164.c @@ -0,0 +1,302 @@ +/************************************************************************** + +Copyright © 2006 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 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 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 THE AUTHOR 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 "dvo.h" + +#define SIL164_VID 0x0001 +#define SIL164_DID 0x0006 + +#define SIL164_VID_LO 0x00 +#define SIL164_VID_HI 0x01 +#define SIL164_DID_LO 0x02 +#define SIL164_DID_HI 0x03 +#define SIL164_REV 0x04 +#define SIL164_RSVD 0x05 +#define SIL164_FREQ_LO 0x06 +#define SIL164_FREQ_HI 0x07 + +#define SIL164_REG8 0x08 +#define SIL164_8_VEN (1<<5) +#define SIL164_8_HEN (1<<4) +#define SIL164_8_DSEL (1<<3) +#define SIL164_8_BSEL (1<<2) +#define SIL164_8_EDGE (1<<1) +#define SIL164_8_PD (1<<0) + +#define SIL164_REG9 0x09 +#define SIL164_9_VLOW (1<<7) +#define SIL164_9_MSEL_MASK (0x7<<4) +#define SIL164_9_TSEL (1<<3) +#define SIL164_9_RSEN (1<<2) +#define SIL164_9_HTPLG (1<<1) +#define SIL164_9_MDI (1<<0) + +#define SIL164_REGC 0x0c + +struct sil164_save_rec { + uint8_t reg8; + uint8_t reg9; + uint8_t regc; +}; + +struct sil164_priv { + //I2CDevRec d; + bool quiet; + struct sil164_save_rec save_regs; + struct sil164_save_rec mode_regs; +}; + +#define SILPTR(d) ((SIL164Ptr)(d->DriverPrivate.ptr)) + +static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) +{ + struct sil164_priv *sil = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[2]; + u8 in_buf[2]; + + struct i2c_msg msgs[] = { + { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = i2cbus->slave_addr, + .flags = I2C_M_RD, + .len = 1, + .buf = in_buf, + } + }; + + out_buf[0] = addr; + out_buf[1] = 0; + + if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) { + *ch = in_buf[0]; + return true; + }; + + if (!sil->quiet) { + DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + return false; +} + +static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) +{ + struct sil164_priv *sil= dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + uint8_t out_buf[2]; + struct i2c_msg msg = { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 2, + .buf = out_buf, + }; + + out_buf[0] = addr; + out_buf[1] = ch; + + if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1) + return true; + + if (!sil->quiet) { + DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + + return false; +} + +/* Silicon Image 164 driver for chip on i2c bus */ +static bool sil164_init(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus) +{ + /* this will detect the SIL164 chip on the specified i2c bus */ + struct sil164_priv *sil; + unsigned char ch; + + sil = kzalloc(sizeof(struct sil164_priv), GFP_KERNEL); + if (sil == NULL) + return false; + + dvo->i2c_bus = i2cbus; + dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->dev_priv = sil; + sil->quiet = true; + + if (!sil164_readb(dvo, SIL164_VID_LO, &ch)) + goto out; + + if (ch != (SIL164_VID & 0xff)) { + DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n", + ch, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + + if (!sil164_readb(dvo, SIL164_DID_LO, &ch)) + goto out; + + if (ch != (SIL164_DID & 0xff)) { + DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n", + ch, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + sil->quiet = false; + + DRM_DEBUG("init sil164 dvo controller successfully!\n"); + return true; + +out: + kfree(sil); + return false; +} + +static enum drm_output_status sil164_detect(struct intel_dvo_device *dvo) +{ + uint8_t reg9; + + sil164_readb(dvo, SIL164_REG9, ®9); + + if (reg9 & SIL164_9_HTPLG) + return output_status_connected; + else + return output_status_disconnected; +} + +static enum drm_mode_status sil164_mode_valid(struct intel_dvo_device *dvo, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static void sil164_mode_set(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + /* As long as the basics are set up, since we don't have clock + * dependencies in the mode setup, we can just leave the + * registers alone and everything will work fine. + */ + /* recommended programming sequence from doc */ + /*sil164_writeb(sil, 0x08, 0x30); + sil164_writeb(sil, 0x09, 0x00); + sil164_writeb(sil, 0x0a, 0x90); + sil164_writeb(sil, 0x0c, 0x89); + sil164_writeb(sil, 0x08, 0x31);*/ + /* don't do much */ + return; +} + +/* set the SIL164 power state */ +static void sil164_dpms(struct intel_dvo_device *dvo, int mode) +{ + int ret; + unsigned char ch; + + ret = sil164_readb(dvo, SIL164_REG8, &ch); + if (ret == false) + return; + + if (mode == DPMSModeOn) + ch |= SIL164_8_PD; + else + ch &= ~SIL164_8_PD; + + sil164_writeb(dvo, SIL164_REG8, ch); + return; +} + +static void sil164_dump_regs(struct intel_dvo_device *dvo) +{ + uint8_t val; + + sil164_readb(dvo, SIL164_FREQ_LO, &val); + DRM_DEBUG("SIL164_FREQ_LO: 0x%02x\n", val); + sil164_readb(dvo, SIL164_FREQ_HI, &val); + DRM_DEBUG("SIL164_FREQ_HI: 0x%02x\n", val); + sil164_readb(dvo, SIL164_REG8, &val); + DRM_DEBUG("SIL164_REG8: 0x%02x\n", val); + sil164_readb(dvo, SIL164_REG9, &val); + DRM_DEBUG("SIL164_REG9: 0x%02x\n", val); + sil164_readb(dvo, SIL164_REGC, &val); + DRM_DEBUG("SIL164_REGC: 0x%02x\n", val); +} + +static void sil164_save(struct intel_dvo_device *dvo) +{ + struct sil164_priv *sil= dvo->dev_priv; + + if (!sil164_readb(dvo, SIL164_REG8, &sil->save_regs.reg8)) + return; + + if (!sil164_readb(dvo, SIL164_REG9, &sil->save_regs.reg9)) + return; + + if (!sil164_readb(dvo, SIL164_REGC, &sil->save_regs.regc)) + return; + + return; +} + +static void sil164_restore(struct intel_dvo_device *dvo) +{ + struct sil164_priv *sil = dvo->dev_priv; + + /* Restore it powered down initially */ + sil164_writeb(dvo, SIL164_REG8, sil->save_regs.reg8 & ~0x1); + + sil164_writeb(dvo, SIL164_REG9, sil->save_regs.reg9); + sil164_writeb(dvo, SIL164_REGC, sil->save_regs.regc); + sil164_writeb(dvo, SIL164_REG8, sil->save_regs.reg8); +} + +static void sil164_destroy(struct intel_dvo_device *dvo) +{ + struct sil164_priv *sil = dvo->dev_priv; + + if (sil) { + kfree(sil); + dvo->dev_priv = NULL; + } +} + +struct intel_dvo_dev_ops sil164_ops = { + .init = sil164_init, + .detect = sil164_detect, + .mode_valid = sil164_mode_valid, + .mode_set = sil164_mode_set, + .dpms = sil164_dpms, + .dump_regs = sil164_dump_regs, + .save = sil164_save, + .restore = sil164_restore, + .destroy = sil164_destroy, +}; diff --git a/linux-core/dvo_tfp410.c b/linux-core/dvo_tfp410.c new file mode 100644 index 00000000..64448509 --- /dev/null +++ b/linux-core/dvo_tfp410.c @@ -0,0 +1,335 @@ +/* + * Copyright © 2007 Dave Mueller + * + * 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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 Mueller + * + */ + +#include "dvo.h" + +/* register definitions according to the TFP410 data sheet */ +#define TFP410_VID 0x014C +#define TFP410_DID 0x0410 + +#define TFP410_VID_LO 0x00 +#define TFP410_VID_HI 0x01 +#define TFP410_DID_LO 0x02 +#define TFP410_DID_HI 0x03 +#define TFP410_REV 0x04 + +#define TFP410_CTL_1 0x08 +#define TFP410_CTL_1_TDIS (1<<6) +#define TFP410_CTL_1_VEN (1<<5) +#define TFP410_CTL_1_HEN (1<<4) +#define TFP410_CTL_1_DSEL (1<<3) +#define TFP410_CTL_1_BSEL (1<<2) +#define TFP410_CTL_1_EDGE (1<<1) +#define TFP410_CTL_1_PD (1<<0) + +#define TFP410_CTL_2 0x09 +#define TFP410_CTL_2_VLOW (1<<7) +#define TFP410_CTL_2_MSEL_MASK (0x7<<4) +#define TFP410_CTL_2_MSEL (1<<4) +#define TFP410_CTL_2_TSEL (1<<3) +#define TFP410_CTL_2_RSEN (1<<2) +#define TFP410_CTL_2_HTPLG (1<<1) +#define TFP410_CTL_2_MDI (1<<0) + +#define TFP410_CTL_3 0x0A +#define TFP410_CTL_3_DK_MASK (0x7<<5) +#define TFP410_CTL_3_DK (1<<5) +#define TFP410_CTL_3_DKEN (1<<4) +#define TFP410_CTL_3_CTL_MASK (0x7<<1) +#define TFP410_CTL_3_CTL (1<<1) + +#define TFP410_USERCFG 0x0B + +#define TFP410_DE_DLY 0x32 + +#define TFP410_DE_CTL 0x33 +#define TFP410_DE_CTL_DEGEN (1<<6) +#define TFP410_DE_CTL_VSPOL (1<<5) +#define TFP410_DE_CTL_HSPOL (1<<4) +#define TFP410_DE_CTL_DEDLY8 (1<<0) + +#define TFP410_DE_TOP 0x34 + +#define TFP410_DE_CNT_LO 0x36 +#define TFP410_DE_CNT_HI 0x37 + +#define TFP410_DE_LIN_LO 0x38 +#define TFP410_DE_LIN_HI 0x39 + +#define TFP410_H_RES_LO 0x3A +#define TFP410_H_RES_HI 0x3B + +#define TFP410_V_RES_LO 0x3C +#define TFP410_V_RES_HI 0x3D + +struct tfp410_save_rec { + uint8_t ctl1; + uint8_t ctl2; +}; + +struct tfp410_priv { + bool quiet; + + struct tfp410_save_rec saved_reg; + struct tfp410_save_rec mode_reg; +}; + +static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch) +{ + struct tfp410_priv *tfp = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + u8 out_buf[2]; + u8 in_buf[2]; + + struct i2c_msg msgs[] = { + { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 1, + .buf = out_buf, + }, + { + .addr = i2cbus->slave_addr, + .flags = I2C_M_RD, + .len = 1, + .buf = in_buf, + } + }; + + out_buf[0] = addr; + out_buf[1] = 0; + + if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) { + *ch = in_buf[0]; + return true; + }; + + if (!tfp->quiet) { + DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + return false; +} + +static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch) +{ + struct tfp410_priv *tfp = dvo->dev_priv; + struct intel_i2c_chan *i2cbus = dvo->i2c_bus; + uint8_t out_buf[2]; + struct i2c_msg msg = { + .addr = i2cbus->slave_addr, + .flags = 0, + .len = 2, + .buf = out_buf, + }; + + out_buf[0] = addr; + out_buf[1] = ch; + + if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1) + return true; + + if (!tfp->quiet) { + DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n", + addr, i2cbus->adapter.name, i2cbus->slave_addr); + } + + return false; +} + +static int tfp410_getid(struct intel_dvo_device *dvo, int addr) +{ + uint8_t ch1, ch2; + + if (tfp410_readb(dvo, addr+0, &ch1) && + tfp410_readb(dvo, addr+1, &ch2)) + return ((ch2 << 8) & 0xFF00) | (ch1 & 0x00FF); + + return -1; +} + +/* Ti TFP410 driver for chip on i2c bus */ +static bool tfp410_init(struct intel_dvo_device *dvo, + struct intel_i2c_chan *i2cbus) +{ + /* this will detect the tfp410 chip on the specified i2c bus */ + struct tfp410_priv *tfp; + int id; + + tfp = kzalloc(sizeof(struct tfp410_priv), GFP_KERNEL); + if (tfp == NULL) + return false; + + dvo->i2c_bus = i2cbus; + dvo->i2c_bus->slave_addr = dvo->slave_addr; + dvo->dev_priv = tfp; + tfp->quiet = TRUE; + + if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) { + DRM_DEBUG("tfp410 not detected got VID %X: from %s Slave %d.\n", + id, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + + if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) { + DRM_DEBUG("tfp410 not detected got DID %X: from %s Slave %d.\n", + id, i2cbus->adapter.name, i2cbus->slave_addr); + goto out; + } + tfp->quiet = FALSE; + return true; +out: + kfree(tfp); + return false; +} + +static enum drm_output_status tfp410_detect(struct intel_dvo_device *dvo) +{ + enum drm_output_status ret = output_status_disconnected; + uint8_t ctl2; + + if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) { + if (ctl2 & TFP410_CTL_2_HTPLG) + ret = output_status_connected; + else + ret = output_status_disconnected; + } + + return ret; +} + +static enum drm_mode_status tfp410_mode_valid(struct intel_dvo_device *dvo, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static void tfp410_mode_set(struct intel_dvo_device *dvo, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + /* As long as the basics are set up, since we don't have clock dependencies + * in the mode setup, we can just leave the registers alone and everything + * will work fine. + */ + /* don't do much */ + return; +} + +/* set the tfp410 power state */ +static void tfp410_dpms(struct intel_dvo_device *dvo, int mode) +{ + uint8_t ctl1; + + if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1)) + return; + + if (mode == DPMSModeOn) + ctl1 |= TFP410_CTL_1_PD; + else + ctl1 &= ~TFP410_CTL_1_PD; + + tfp410_writeb(dvo, TFP410_CTL_1, ctl1); +} + +static void tfp410_dump_regs(struct intel_dvo_device *dvo) +{ + uint8_t val, val2; + + tfp410_readb(dvo, TFP410_REV, &val); + DRM_DEBUG("TFP410_REV: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_CTL_1, &val); + DRM_DEBUG("TFP410_CTL1: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_CTL_2, &val); + DRM_DEBUG("TFP410_CTL2: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_CTL_3, &val); + DRM_DEBUG("TFP410_CTL3: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_USERCFG, &val); + DRM_DEBUG("TFP410_USERCFG: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_DE_DLY, &val); + DRM_DEBUG("TFP410_DE_DLY: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_DE_CTL, &val); + DRM_DEBUG("TFP410_DE_CTL: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_DE_TOP, &val); + DRM_DEBUG("TFP410_DE_TOP: 0x%02X\n", val); + tfp410_readb(dvo, TFP410_DE_CNT_LO, &val); + tfp410_readb(dvo, TFP410_DE_CNT_HI, &val2); + DRM_DEBUG("TFP410_DE_CNT: 0x%02X%02X\n", val2, val); + tfp410_readb(dvo, TFP410_DE_LIN_LO, &val); + tfp410_readb(dvo, TFP410_DE_LIN_HI, &val2); + DRM_DEBUG("TFP410_DE_LIN: 0x%02X%02X\n", val2, val); + tfp410_readb(dvo, TFP410_H_RES_LO, &val); + tfp410_readb(dvo, TFP410_H_RES_HI, &val2); + DRM_DEBUG("TFP410_H_RES: 0x%02X%02X\n", val2, val); + tfp410_readb(dvo, TFP410_V_RES_LO, &val); + tfp410_readb(dvo, TFP410_V_RES_HI, &val2); + DRM_DEBUG("TFP410_V_RES: 0x%02X%02X\n", val2, val); +} + +static void tfp410_save(struct intel_dvo_device *dvo) +{ + struct tfp410_priv *tfp = dvo->dev_priv; + + if (!tfp410_readb(dvo, TFP410_CTL_1, &tfp->saved_reg.ctl1)) + return; + + if (!tfp410_readb(dvo, TFP410_CTL_2, &tfp->saved_reg.ctl2)) + return; +} + +static void tfp410_restore(struct intel_dvo_device *dvo) +{ + struct tfp410_priv *tfp = dvo->dev_priv; + + /* Restore it powered down initially */ + tfp410_writeb(dvo, TFP410_CTL_1, tfp->saved_reg.ctl1 & ~0x1); + + tfp410_writeb(dvo, TFP410_CTL_2, tfp->saved_reg.ctl2); + tfp410_writeb(dvo, TFP410_CTL_1, tfp->saved_reg.ctl1); +} + +static void tfp410_destroy(struct intel_dvo_device *dvo) +{ + struct tfp410_priv *tfp = dvo->dev_priv; + + if (tfp) { + kfree(tfp); + dvo->dev_priv = NULL; + } +} + +struct intel_dvo_dev_ops tfp410_ops = { + .init = tfp410_init, + .detect = tfp410_detect, + .mode_valid = tfp410_mode_valid, + .mode_set = tfp410_mode_set, + .dpms = tfp410_dpms, + .dump_regs = tfp410_dump_regs, + .save = tfp410_save, + .restore = tfp410_restore, + .destroy = tfp410_destroy, +}; diff --git a/linux-core/intel_display.c b/linux-core/intel_display.c index 6aa61256..46abb90c 100644 --- a/linux-core/intel_display.c +++ b/linux-core/intel_display.c @@ -1396,7 +1396,8 @@ static void intel_setup_outputs(struct drm_device *dev) if (IS_I9XX(dev)) { intel_sdvo_init(dev, SDVOB); intel_sdvo_init(dev, SDVOC); - } + } else + intel_dvo_init(dev); if (IS_I9XX(dev) && !IS_I915G(dev)) intel_tv_init(dev); diff --git a/linux-core/intel_drv.h b/linux-core/intel_drv.h index 51c52c84..e0e6b797 100644 --- a/linux-core/intel_drv.h +++ b/linux-core/intel_drv.h @@ -69,6 +69,7 @@ extern bool intel_ddc_probe(struct drm_output *output); extern void intel_crt_init(struct drm_device *dev); extern void intel_sdvo_init(struct drm_device *dev, int output_device); +extern void intel_dvo_init(struct drm_device *dev); extern void intel_tv_init(struct drm_device *dev); extern void intel_lvds_init(struct drm_device *dev); diff --git a/linux-core/intel_dvo.c b/linux-core/intel_dvo.c new file mode 100644 index 00000000..423b7514 --- /dev/null +++ b/linux-core/intel_dvo.c @@ -0,0 +1,493 @@ +/* + * Copyright © 2006-2007 Intel Corporation + * + * 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 + * THE AUTHORS OR COPYRIGHT HOLDERS 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: + * Eric Anholt + */ +/* + * Copyright 2006 Dave Airlie + */ + +#include +#include "drmP.h" +#include "drm.h" +#include "drm_crtc.h" +#include "intel_drv.h" +#include "i915_drm.h" +#include "i915_drv.h" +#include "dvo.h" + +#define SIL164_ADDR 0x38 +#define CH7xxx_ADDR 0x76 +#define TFP410_ADDR 0x38 + +extern struct intel_dvo_dev_ops sil164_ops; +extern struct intel_dvo_dev_ops ch7xxx_ops; +extern struct intel_dvo_dev_ops ivch_ops; +extern struct intel_dvo_dev_ops tfp410_ops; +extern struct intel_dvo_dev_ops ch7017_ops; + +struct intel_dvo_device intel_dvo_devices[] = { + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "sil164", + .dvo_reg = DVOC, + .slave_addr = SIL164_ADDR, + .dev_ops = &sil164_ops, + }, + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "ch7xxx", + .dvo_reg = DVOC, + .slave_addr = CH7xxx_ADDR, + .dev_ops = &ch7xxx_ops, + }, + { + .type = INTEL_DVO_CHIP_LVDS, + .name = "ivch", + .dvo_reg = DVOA, + .slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */ + .dev_ops = &ivch_ops, + }, + { + .type = INTEL_DVO_CHIP_TMDS, + .name = "tfp410", + .dvo_reg = DVOC, + .slave_addr = TFP410_ADDR, + .dev_ops = &tfp410_ops, + }, + { + .type = INTEL_DVO_CHIP_LVDS, + .name = "ch7017", + .dvo_reg = DVOC, + .slave_addr = 0x75, + .gpio = GPIOE, + .dev_ops = &ch7017_ops, + } +}; + +static void intel_dvo_dpms(struct drm_output *output, int mode) +{ + struct drm_i915_private *dev_priv = output->dev->dev_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + u32 dvo_reg = dvo->dvo_reg; + u32 temp = I915_READ(dvo_reg); + + if (mode == DPMSModeOn) { + I915_WRITE(dvo_reg, temp | DVO_ENABLE); + I915_READ(dvo_reg); + dvo->dev_ops->dpms(dvo, mode); + } else { + dvo->dev_ops->dpms(dvo, mode); + I915_WRITE(dvo_reg, temp & ~DVO_ENABLE); + I915_READ(dvo_reg); + } +} + +static void intel_dvo_save(struct drm_output *output) +{ + struct drm_i915_private *dev_priv = output->dev->dev_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + /* Each output should probably just save the registers it touches, + * but for now, use more overkill. + */ + dev_priv->saveDVOA = I915_READ(DVOA); + dev_priv->saveDVOB = I915_READ(DVOB); + dev_priv->saveDVOC = I915_READ(DVOC); + + dvo->dev_ops->save(dvo); +} + +static void intel_dvo_restore(struct drm_output *output) +{ + struct drm_i915_private *dev_priv = output->dev->dev_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + dvo->dev_ops->restore(dvo); + + I915_WRITE(DVOA, dev_priv->saveDVOA); + I915_WRITE(DVOB, dev_priv->saveDVOB); + I915_WRITE(DVOC, dev_priv->saveDVOC); +} + +static int intel_dvo_mode_valid(struct drm_output *output, + struct drm_display_mode *mode) +{ + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + if (mode->flags & V_DBLSCAN) + return MODE_NO_DBLESCAN; + + /* XXX: Validate clock range */ + + if (dvo->panel_fixed_mode) { + if (mode->hdisplay > dvo->panel_fixed_mode->hdisplay) + return MODE_PANEL; + if (mode->vdisplay > dvo->panel_fixed_mode->vdisplay) + return MODE_PANEL; + } + + return dvo->dev_ops->mode_valid(dvo, mode); +} + +static bool intel_dvo_mode_fixup(struct drm_output *output, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + /* If we have timings from the BIOS for the panel, put them in + * to the adjusted mode. The CRTC will be set up for this mode, + * with the panel scaling set up to source from the H/VDisplay + * of the original mode. + */ + if (dvo->panel_fixed_mode != NULL) { +#define C(x) adjusted_mode->x = dvo->panel_fixed_mode->x + C(hdisplay); + C(hsync_start); + C(hsync_end); + C(htotal); + C(vdisplay); + C(vsync_start); + C(vsync_end); + C(vtotal); + C(clock); + drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V); +#undef C + } + + if (dvo->dev_ops->mode_fixup) + return dvo->dev_ops->mode_fixup(dvo, mode, adjusted_mode); + + return true; +} + +static void intel_dvo_mode_set(struct drm_output *output, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *dev = output->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_crtc *intel_crtc = output->crtc->driver_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + int pipe = intel_crtc->pipe; + u32 dvo_val; + u32 dvo_reg = dvo->dvo_reg, dvo_srcdim_reg; + int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B; + + switch (dvo_reg) { + case DVOA: + default: + dvo_srcdim_reg = DVOA_SRCDIM; + break; + case DVOB: + dvo_srcdim_reg = DVOB_SRCDIM; + break; + case DVOC: + dvo_srcdim_reg = DVOC_SRCDIM; + break; + } + + dvo->dev_ops->mode_set(dvo, mode, adjusted_mode); + + /* Save the data order, since I don't know what it should be set to. */ + dvo_val = I915_READ(dvo_reg) & + (DVO_PRESERVE_MASK | DVO_DATA_ORDER_GBRG); + dvo_val |= DVO_DATA_ORDER_FP | DVO_BORDER_ENABLE | + DVO_BLANK_ACTIVE_HIGH; + + if (pipe == 1) + dvo_val |= DVO_PIPE_B_SELECT; + dvo_val |= DVO_PIPE_STALL; + if (adjusted_mode->flags & V_PHSYNC) + dvo_val |= DVO_HSYNC_ACTIVE_HIGH; + if (adjusted_mode->flags & V_PVSYNC) + dvo_val |= DVO_VSYNC_ACTIVE_HIGH; + + I915_WRITE(dpll_reg, I915_READ(dpll_reg) | DPLL_DVO_HIGH_SPEED); + + /*I915_WRITE(DVOB_SRCDIM, + (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | + (adjusted_mode->VDisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/ + I915_WRITE(dvo_srcdim_reg, + (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) | + (adjusted_mode->vdisplay << DVO_SRCDIM_VERTICAL_SHIFT)); + /*I915_WRITE(DVOB, dvo_val);*/ + I915_WRITE(dvo_reg, dvo_val); +} + +/** + * Detect the output connection on our DVO device. + * + * Unimplemented. + */ +static enum drm_output_status intel_dvo_detect(struct drm_output *output) +{ + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + return dvo->dev_ops->detect(dvo); +} + +static int intel_dvo_get_modes(struct drm_output *output) +{ + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + /* We should probably have an i2c driver get_modes function for those + * devices which will have a fixed set of modes determined by the chip + * (TV-out, for example), but for now with just TMDS and LVDS, + * that's not the case. + */ + intel_ddc_get_modes(output); + if (!list_empty(&output->probed_modes)) + return 1; + +#if 0 + if (intel_output->i2c_drv->vid_rec->get_modes) + { + modes = intel_output->i2c_drv->vid_rec->get_modes (intel_output->i2c_drv->dev_priv); + if (modes != NULL) + return modes; + } +#endif + + if (dvo->panel_fixed_mode != NULL) { + struct drm_display_mode *mode; + mode = drm_mode_duplicate(output->dev, dvo->panel_fixed_mode); + if (mode) { + drm_mode_probed_add(output, mode); + return 1; + } + } + return 0; +} + +static void intel_dvo_destroy (struct drm_output *output) +{ + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + + if (dvo) { + if (dvo->dev_ops->destroy) + dvo->dev_ops->destroy(dvo); + if (dvo->panel_fixed_mode) + kfree(dvo->panel_fixed_mode); + /* no need, in i830_dvoices[] now */ + //kfree(dvo); + } + if (intel_output) { + if (intel_output->i2c_bus) + intel_i2c_destroy(intel_output->i2c_bus); + if (intel_output->ddc_bus) + intel_i2c_destroy(intel_output->ddc_bus); + kfree(intel_output); + output->driver_private = NULL; + } +} + +#ifdef RANDR_GET_CRTC_INTERFACE +static struct drm_crtc *intel_dvo_get_crtc(struct drm_output *output) +{ + struct drm_device *dev = output->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + int pipe = !!(I915_READ(dvo->dvo_reg) & SDVO_PIPE_B_SELECT); + + return intel_pipe_to_crtc(pScrn, pipe); +} +#endif + + +static const struct drm_output_funcs intel_dvo_output_funcs = { + .dpms = intel_dvo_dpms, + .save = intel_dvo_save, + .restore = intel_dvo_restore, + .mode_valid = intel_dvo_mode_valid, + .mode_fixup = intel_dvo_mode_fixup, + .prepare = intel_output_prepare, + .mode_set = intel_dvo_mode_set, + .commit = intel_output_commit, + .detect = intel_dvo_detect, + .get_modes = intel_dvo_get_modes, + .cleanup = intel_dvo_destroy +}; + +/** + * Attempts to get a fixed panel timing for LVDS (currently only the i830). + * + * Other chips with DVO LVDS will need to extend this to deal with the LVDS + * chip being on DVOB/C and having multiple pipes. + */ +static struct drm_display_mode * +intel_dvo_get_current_mode (struct drm_output *output) +{ + struct drm_device *dev = output->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_output *intel_output = output->driver_private; + struct intel_dvo_device *dvo = intel_output->dev_priv; + uint32_t dvo_reg = dvo->dvo_reg; + uint32_t dvo_val = I915_READ(dvo_reg); + struct drm_display_mode *mode = NULL; + + /* If the DVO port is active, that'll be the LVDS, so we can pull out + * its timings to get how the BIOS set up the panel. + */ + if (dvo_val & DVO_ENABLE) { + struct drm_crtc *crtc; + int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0; + + crtc = intel_get_crtc_from_pipe(dev, pipe); + if (crtc) { + mode = intel_crtc_mode_get(dev, crtc); + + if (mode) { + mode->type |= DRM_MODE_TYPE_PREFERRED; + if (dvo_val & DVO_HSYNC_ACTIVE_HIGH) + mode->flags |= V_PHSYNC; + if (dvo_val & DVO_VSYNC_ACTIVE_HIGH) + mode->flags |= V_PVSYNC; + } + } + } + return mode; +} + +void intel_dvo_init(struct drm_device *dev) +{ + struct intel_output *intel_output; + struct intel_dvo_device *dvo; + struct intel_i2c_chan *i2cbus = NULL; + int ret = 0; + int i; + int gpio_inited = 0; + int connector = ConnectorUnknown; + + intel_output = kzalloc (sizeof(struct intel_output), GFP_KERNEL); + if (!intel_output) + return; + + /* Set up the DDC bus */ + intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "DVODDC_D"); + if (!intel_output->ddc_bus) + goto free_intel; + + /* Now, try to find a controller */ + for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) { + struct drm_output *output = NULL; + int gpio; + + dvo = &intel_dvo_devices[i]; + + /* Allow the I2C driver info to specify the GPIO to be used in + * special cases, but otherwise default to what's defined + * in the spec. + */ + if (dvo->gpio != 0) + gpio = dvo->gpio; + else if (dvo->type == INTEL_DVO_CHIP_LVDS) + gpio = GPIOB; + else + gpio = GPIOE; + + /* Set up the I2C bus necessary for the chip we're probing. + * It appears that everything is on GPIOE except for panels + * on i830 laptops, which are on GPIOB (DVOA). + */ + if (gpio_inited != gpio) { + if (i2cbus != NULL) + intel_i2c_destroy(i2cbus); + if (!(i2cbus = intel_i2c_create(dev, gpio, + gpio == GPIOB ? "DVOI2C_B" : "DVOI2C_E"))) { + continue; + } + gpio_inited = gpio; + } + + if (dvo->dev_ops!= NULL) + ret = dvo->dev_ops->init(dvo, i2cbus); + else + ret = false; + + if (!ret) + continue; + + intel_output->type = INTEL_OUTPUT_DVO; + switch (dvo->type) { + case INTEL_DVO_CHIP_TMDS: + connector = ConnectorDVID; + output = drm_output_create(dev, &intel_dvo_output_funcs, + DRM_MODE_OUTPUT_TMDS); + break; + case INTEL_DVO_CHIP_LVDS: + connector = ConnectorLVDS; + output = drm_output_create(dev, &intel_dvo_output_funcs, + DRM_MODE_OUTPUT_LVDS); + break; + } + if (output == NULL) { + dvo->dev_ops->destroy(dvo); + goto free_i2c; + } + + output->driver_private = intel_output; + output->display_info.subpixel_order = SubPixelHorizontalRGB; + output->interlace_allowed = false; + output->doublescan_allowed = false; + + intel_output->dev_priv = dvo; + intel_output->i2c_bus = i2cbus; + + if (dvo->type == INTEL_DVO_CHIP_LVDS) { + /* For our LVDS chipsets, we should hopefully be able + * to dig the fixed panel mode out of the BIOS data. + * However, it's in a different format from the BIOS + * data on chipsets with integrated LVDS (stored in AIM + * headers, likely), so for now, just get the current + * mode being output through DVO. + */ + dvo->panel_fixed_mode = intel_dvo_get_current_mode(output); + dvo->panel_wants_dither = true; + } + + drm_output_attach_property(output, + dev->mode_config.connector_type_property, + connector); + return; + } + +free_i2c: + intel_i2c_destroy(intel_output->ddc_bus); + /* Didn't find a chip, so tear down. */ + if (i2cbus != NULL) + intel_i2c_destroy(i2cbus); +free_intel: + kfree(intel_output); +} -- cgit v1.2.3