diff options
Diffstat (limited to 'linux-core/dvo_ch7xxx.c')
| -rw-r--r-- | linux-core/dvo_ch7xxx.c | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/linux-core/dvo_ch7xxx.c b/linux-core/dvo_ch7xxx.c deleted file mode 100644 index 77c86395..00000000 --- a/linux-core/dvo_ch7xxx.c +++ /dev/null @@ -1,368 +0,0 @@ -/************************************************************************** - -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_connector_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 connector_status_connected; - return connector_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 & DRM_MODE_FLAG_PHSYNC) - idf |= CH7xxx_IDF_HSP; - - if (mode->flags & DRM_MODE_FLAG_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 == DRM_MODE_DPMS_ON) - 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, -}; |