1 /**************************************************************************
3 Copyright © 2006 Dave Airlie
7 Permission is hereby granted, free of charge, to any person obtaining a
8 copy of this software and associated documentation files (the
9 "Software"), to deal in the Software without restriction, including
10 without limitation the rights to use, copy, modify, merge, publish,
11 distribute, sub license, and/or sell copies of the Software, and to
12 permit persons to whom the Software is furnished to do so, subject to
13 the following conditions:
15 The above copyright notice and this permission notice (including the
16 next paragraph) shall be included in all copies or substantial portions
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
23 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
34 #define SIL164_VID 0x0001
35 #define SIL164_DID 0x0006
37 #define SIL164_VID_LO 0x00
38 #define SIL164_VID_HI 0x01
39 #define SIL164_DID_LO 0x02
40 #define SIL164_DID_HI 0x03
41 #define SIL164_REV 0x04
42 #define SIL164_RSVD 0x05
43 #define SIL164_FREQ_LO 0x06
44 #define SIL164_FREQ_HI 0x07
46 #define SIL164_REG8 0x08
47 #define SIL164_8_VEN (1<<5)
48 #define SIL164_8_HEN (1<<4)
49 #define SIL164_8_DSEL (1<<3)
50 #define SIL164_8_BSEL (1<<2)
51 #define SIL164_8_EDGE (1<<1)
52 #define SIL164_8_PD (1<<0)
54 #define SIL164_REG9 0x09
55 #define SIL164_9_VLOW (1<<7)
56 #define SIL164_9_MSEL_MASK (0x7<<4)
57 #define SIL164_9_TSEL (1<<3)
58 #define SIL164_9_RSEN (1<<2)
59 #define SIL164_9_HTPLG (1<<1)
60 #define SIL164_9_MDI (1<<0)
62 #define SIL164_REGC 0x0c
69 #define SILPTR(d) ((SIL164Ptr)(d->DriverPrivate.ptr))
71 static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
73 struct sil164_priv *sil = dvo->dev_priv;
74 device_t adapter = dvo->i2c_bus;
78 struct iic_msg msgs[] = {
80 .slave = dvo->slave_addr << 1,
86 .slave = dvo->slave_addr << 1,
96 if (-iicbus_transfer(adapter, msgs, 2) == 0) {
102 DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
103 addr, device_get_nameunit(adapter), dvo->slave_addr);
108 static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
110 struct sil164_priv *sil = dvo->dev_priv;
111 device_t adapter = dvo->i2c_bus;
113 struct iic_msg msg = {
114 .slave = dvo->slave_addr << 1,
123 if (-iicbus_transfer(adapter, &msg, 1) == 0)
127 DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
128 addr, device_get_nameunit(adapter), dvo->slave_addr);
134 /* Silicon Image 164 driver for chip on i2c bus */
135 static bool sil164_init(struct intel_dvo_device *dvo,
138 /* this will detect the SIL164 chip on the specified i2c bus */
139 struct sil164_priv *sil;
142 sil = malloc(sizeof(struct sil164_priv), DRM_MEM_KMS, M_NOWAIT | M_ZERO);
146 dvo->i2c_bus = adapter;
150 if (!sil164_readb(dvo, SIL164_VID_LO, &ch))
153 if (ch != (SIL164_VID & 0xff)) {
154 DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
155 ch, device_get_nameunit(adapter), dvo->slave_addr);
159 if (!sil164_readb(dvo, SIL164_DID_LO, &ch))
162 if (ch != (SIL164_DID & 0xff)) {
163 DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
164 ch, device_get_nameunit(adapter), dvo->slave_addr);
169 DRM_DEBUG_KMS("init sil164 dvo controller successfully!\n");
173 free(sil, DRM_MEM_KMS);
177 static enum drm_connector_status sil164_detect(struct intel_dvo_device *dvo)
181 sil164_readb(dvo, SIL164_REG9, ®9);
183 if (reg9 & SIL164_9_HTPLG)
184 return connector_status_connected;
186 return connector_status_disconnected;
189 static enum drm_mode_status sil164_mode_valid(struct intel_dvo_device *dvo,
190 struct drm_display_mode *mode)
195 static void sil164_mode_set(struct intel_dvo_device *dvo,
196 struct drm_display_mode *mode,
197 struct drm_display_mode *adjusted_mode)
199 /* As long as the basics are set up, since we don't have clock
200 * dependencies in the mode setup, we can just leave the
201 * registers alone and everything will work fine.
203 /* recommended programming sequence from doc */
204 /*sil164_writeb(sil, 0x08, 0x30);
205 sil164_writeb(sil, 0x09, 0x00);
206 sil164_writeb(sil, 0x0a, 0x90);
207 sil164_writeb(sil, 0x0c, 0x89);
208 sil164_writeb(sil, 0x08, 0x31);*/
213 /* set the SIL164 power state */
214 static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
219 ret = sil164_readb(dvo, SIL164_REG8, &ch);
228 sil164_writeb(dvo, SIL164_REG8, ch);
232 static bool sil164_get_hw_state(struct intel_dvo_device *dvo)
237 ret = sil164_readb(dvo, SIL164_REG8, &ch);
241 if (ch & SIL164_8_PD)
247 static void sil164_dump_regs(struct intel_dvo_device *dvo)
251 sil164_readb(dvo, SIL164_FREQ_LO, &val);
252 DRM_LOG_KMS("SIL164_FREQ_LO: 0x%02x\n", val);
253 sil164_readb(dvo, SIL164_FREQ_HI, &val);
254 DRM_LOG_KMS("SIL164_FREQ_HI: 0x%02x\n", val);
255 sil164_readb(dvo, SIL164_REG8, &val);
256 DRM_LOG_KMS("SIL164_REG8: 0x%02x\n", val);
257 sil164_readb(dvo, SIL164_REG9, &val);
258 DRM_LOG_KMS("SIL164_REG9: 0x%02x\n", val);
259 sil164_readb(dvo, SIL164_REGC, &val);
260 DRM_LOG_KMS("SIL164_REGC: 0x%02x\n", val);
263 static void sil164_destroy(struct intel_dvo_device *dvo)
265 struct sil164_priv *sil = dvo->dev_priv;
268 free(sil, DRM_MEM_KMS);
269 dvo->dev_priv = NULL;
273 struct intel_dvo_dev_ops sil164_ops = {
275 .detect = sil164_detect,
276 .mode_valid = sil164_mode_valid,
277 .mode_set = sil164_mode_set,
279 .get_hw_state = sil164_get_hw_state,
280 .dump_regs = sil164_dump_regs,
281 .destroy = sil164_destroy,