WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/dvo_sil164.c


/**************************************************************************
 
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_priv {
	//I2CDevRec d;
	bool quiet;
};
 
#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 i2c_adapter *adapter = dvo->i2c_bus;
	u8 out_buf[2];
	u8 in_buf[2];
 
	struct i2c_msg msgs[] = {
		{
			.addr = dvo->slave_addr,
			.flags = 0,
			.len = 1,
			.buf = out_buf,
		},
		{
			.addr = dvo->slave_addr,
			.flags = I2C_M_RD,
			.len = 1,
			.buf = in_buf,
		}
	};
 
	out_buf[0] = addr;
	out_buf[1] = 0;
 
	if (i2c_transfer(adapter, msgs, 2) == 2) {
		*ch = in_buf[0];
		return true;
	};
 
	if (!sil->quiet) {
		DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
			  addr, adapter->name, dvo->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 i2c_adapter *adapter = dvo->i2c_bus;
	uint8_t out_buf[2];
	struct i2c_msg msg = {
		.addr = dvo->slave_addr,
		.flags = 0,
		.len = 2,
		.buf = out_buf,
	};
 
	out_buf[0] = addr;
	out_buf[1] = ch;
 
	if (i2c_transfer(adapter, &msg, 1) == 1)
		return true;
 
	if (!sil->quiet) {
		DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
			  addr, adapter->name, dvo->slave_addr);
	}
 
	return false;
}
 
/* Silicon Image 164 driver for chip on i2c bus */
static bool sil164_init(struct intel_dvo_device *dvo,
			struct i2c_adapter *adapter)
{
	/* 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 = adapter;
	dvo->dev_priv = sil;
	sil->quiet = true;
 
	if (!sil164_readb(dvo, SIL164_VID_LO, &ch))
		goto out;
 
	if (ch != (SIL164_VID & 0xff)) {
		DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
			  ch, adapter->name, dvo->slave_addr);
		goto out;
	}
 
	if (!sil164_readb(dvo, SIL164_DID_LO, &ch))
		goto out;
 
	if (ch != (SIL164_DID & 0xff)) {
		DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
			  ch, adapter->name, dvo->slave_addr);
		goto out;
	}
	sil->quiet = false;
 
	DRM_DEBUG_KMS("init sil164 dvo controller successfully!\n");
	return true;
 
out:
	kfree(sil);
	return false;
}
 
static enum drm_connector_status sil164_detect(struct intel_dvo_device *dvo)
{
	uint8_t reg9;
 
	sil164_readb(dvo, SIL164_REG9, ®9);
 
	if (reg9 & SIL164_9_HTPLG)
		return connector_status_connected;
	else
		return connector_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, bool enable)
{
	int ret;

Rev 2342	Rev 3031
1	/**************************************************************************	1	/**************************************************************************
2		2
3	Copyright © 2006 Dave Airlie	3	Copyright © 2006 Dave Airlie
4		4
5	All Rights Reserved.	5	All Rights Reserved.
6		6
7	Permission is hereby granted, free of charge, to any person obtaining a	7	Permission is hereby granted, free of charge, to any person obtaining a
8	copy of this software and associated documentation files (the	8	copy of this software and associated documentation files (the
9	"Software"), to deal in the Software without restriction, including	9	"Software"), to deal in the Software without restriction, including
10	without limitation the rights to use, copy, modify, merge, publish,	10	without limitation the rights to use, copy, modify, merge, publish,
11	distribute, sub license, and/or sell copies of the Software, and to	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	12	permit persons to whom the Software is furnished to do so, subject to
13	the following conditions:	13	the following conditions:
14		14
15	The above copyright notice and this permission notice (including the	15	The above copyright notice and this permission notice (including the
16	next paragraph) shall be included in all copies or substantial portions	16	next paragraph) shall be included in all copies or substantial portions
17	of the Software.	17	of the Software.
18		18
19	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS	19	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF	20	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.	21	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22	IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR	22	IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
23	ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,	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	24	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.	25	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26		26
27	**************************************************************************/	27	**************************************************************************/
28		28
29	#include "dvo.h"	29	#include "dvo.h"
30		30
31	#define SIL164_VID 0x0001	31	#define SIL164_VID 0x0001
32	#define SIL164_DID 0x0006	32	#define SIL164_DID 0x0006
33		33
34	#define SIL164_VID_LO 0x00	34	#define SIL164_VID_LO 0x00
35	#define SIL164_VID_HI 0x01	35	#define SIL164_VID_HI 0x01
36	#define SIL164_DID_LO 0x02	36	#define SIL164_DID_LO 0x02
37	#define SIL164_DID_HI 0x03	37	#define SIL164_DID_HI 0x03
38	#define SIL164_REV 0x04	38	#define SIL164_REV 0x04
39	#define SIL164_RSVD 0x05	39	#define SIL164_RSVD 0x05
40	#define SIL164_FREQ_LO 0x06	40	#define SIL164_FREQ_LO 0x06
41	#define SIL164_FREQ_HI 0x07	41	#define SIL164_FREQ_HI 0x07
42		42
43	#define SIL164_REG8 0x08	43	#define SIL164_REG8 0x08
44	#define SIL164_8_VEN (1<<5)	44	#define SIL164_8_VEN (1<<5)
45	#define SIL164_8_HEN (1<<4)	45	#define SIL164_8_HEN (1<<4)
46	#define SIL164_8_DSEL (1<<3)	46	#define SIL164_8_DSEL (1<<3)
47	#define SIL164_8_BSEL (1<<2)	47	#define SIL164_8_BSEL (1<<2)
48	#define SIL164_8_EDGE (1<<1)	48	#define SIL164_8_EDGE (1<<1)
49	#define SIL164_8_PD (1<<0)	49	#define SIL164_8_PD (1<<0)
50		50
51	#define SIL164_REG9 0x09	51	#define SIL164_REG9 0x09
52	#define SIL164_9_VLOW (1<<7)	52	#define SIL164_9_VLOW (1<<7)
53	#define SIL164_9_MSEL_MASK (0x7<<4)	53	#define SIL164_9_MSEL_MASK (0x7<<4)
54	#define SIL164_9_TSEL (1<<3)	54	#define SIL164_9_TSEL (1<<3)
55	#define SIL164_9_RSEN (1<<2)	55	#define SIL164_9_RSEN (1<<2)
56	#define SIL164_9_HTPLG (1<<1)	56	#define SIL164_9_HTPLG (1<<1)
57	#define SIL164_9_MDI (1<<0)	57	#define SIL164_9_MDI (1<<0)
58		58
59	#define SIL164_REGC 0x0c	59	#define SIL164_REGC 0x0c
60		60
61	struct sil164_priv {	61	struct sil164_priv {
62	//I2CDevRec d;	62	//I2CDevRec d;
63	bool quiet;	63	bool quiet;
64	};	64	};
65		65
66	#define SILPTR(d) ((SIL164Ptr)(d->DriverPrivate.ptr))	66	#define SILPTR(d) ((SIL164Ptr)(d->DriverPrivate.ptr))
67		67
68	static bool sil164_readb(struct intel_dvo_device dvo, int addr, uint8_t ch)	68	static bool sil164_readb(struct intel_dvo_device dvo, int addr, uint8_t ch)
69	{	69	{
70	struct sil164_priv *sil = dvo->dev_priv;	70	struct sil164_priv *sil = dvo->dev_priv;
71	struct i2c_adapter *adapter = dvo->i2c_bus;	71	struct i2c_adapter *adapter = dvo->i2c_bus;
72	u8 out_buf[2];	72	u8 out_buf[2];
73	u8 in_buf[2];	73	u8 in_buf[2];
74		74
75	struct i2c_msg msgs[] = {	75	struct i2c_msg msgs[] = {
76	{	76	{
77	.addr = dvo->slave_addr,	77	.addr = dvo->slave_addr,
78	.flags = 0,	78	.flags = 0,
79	.len = 1,	79	.len = 1,
80	.buf = out_buf,	80	.buf = out_buf,
81	},	81	},
82	{	82	{
83	.addr = dvo->slave_addr,	83	.addr = dvo->slave_addr,
84	.flags = I2C_M_RD,	84	.flags = I2C_M_RD,
85	.len = 1,	85	.len = 1,
86	.buf = in_buf,	86	.buf = in_buf,
87	}	87	}
88	};	88	};
89		89
90	out_buf[0] = addr;	90	out_buf[0] = addr;
91	out_buf[1] = 0;	91	out_buf[1] = 0;
92		92
93	if (i2c_transfer(adapter, msgs, 2) == 2) {	93	if (i2c_transfer(adapter, msgs, 2) == 2) {
94	*ch = in_buf[0];	94	*ch = in_buf[0];
95	return true;	95	return true;
96	};	96	};
97		97
98	if (!sil->quiet) {	98	if (!sil->quiet) {
99	DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",	99	DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
100	addr, adapter->name, dvo->slave_addr);	100	addr, adapter->name, dvo->slave_addr);
101	}	101	}
102	return false;	102	return false;
103	}	103	}
104		104
105	static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)	105	static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
106	{	106	{
107	struct sil164_priv *sil = dvo->dev_priv;	107	struct sil164_priv *sil = dvo->dev_priv;
108	struct i2c_adapter *adapter = dvo->i2c_bus;	108	struct i2c_adapter *adapter = dvo->i2c_bus;
109	uint8_t out_buf[2];	109	uint8_t out_buf[2];
110	struct i2c_msg msg = {	110	struct i2c_msg msg = {
111	.addr = dvo->slave_addr,	111	.addr = dvo->slave_addr,
112	.flags = 0,	112	.flags = 0,
113	.len = 2,	113	.len = 2,
114	.buf = out_buf,	114	.buf = out_buf,
115	};	115	};
116		116
117	out_buf[0] = addr;	117	out_buf[0] = addr;
118	out_buf[1] = ch;	118	out_buf[1] = ch;
119		119
120	if (i2c_transfer(adapter, &msg, 1) == 1)	120	if (i2c_transfer(adapter, &msg, 1) == 1)
121	return true;	121	return true;
122		122
123	if (!sil->quiet) {	123	if (!sil->quiet) {
124	DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",	124	DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
125	addr, adapter->name, dvo->slave_addr);	125	addr, adapter->name, dvo->slave_addr);
126	}	126	}
127		127
128	return false;	128	return false;
129	}	129	}
130		130
131	/* Silicon Image 164 driver for chip on i2c bus */	131	/* Silicon Image 164 driver for chip on i2c bus */
132	static bool sil164_init(struct intel_dvo_device *dvo,	132	static bool sil164_init(struct intel_dvo_device *dvo,
133	struct i2c_adapter *adapter)	133	struct i2c_adapter *adapter)
134	{	134	{
135	/* this will detect the SIL164 chip on the specified i2c bus */	135	/* this will detect the SIL164 chip on the specified i2c bus */
136	struct sil164_priv *sil;	136	struct sil164_priv *sil;
137	unsigned char ch;	137	unsigned char ch;
138		138
139	sil = kzalloc(sizeof(struct sil164_priv), GFP_KERNEL);	139	sil = kzalloc(sizeof(struct sil164_priv), GFP_KERNEL);
140	if (sil == NULL)	140	if (sil == NULL)
141	return false;	141	return false;
142		142
143	dvo->i2c_bus = adapter;	143	dvo->i2c_bus = adapter;
144	dvo->dev_priv = sil;	144	dvo->dev_priv = sil;
145	sil->quiet = true;	145	sil->quiet = true;
146		146
147	if (!sil164_readb(dvo, SIL164_VID_LO, &ch))	147	if (!sil164_readb(dvo, SIL164_VID_LO, &ch))
148	goto out;	148	goto out;
149		149
150	if (ch != (SIL164_VID & 0xff)) {	150	if (ch != (SIL164_VID & 0xff)) {
151	DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",	151	DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
152	ch, adapter->name, dvo->slave_addr);	152	ch, adapter->name, dvo->slave_addr);
153	goto out;	153	goto out;
154	}	154	}
155		155
156	if (!sil164_readb(dvo, SIL164_DID_LO, &ch))	156	if (!sil164_readb(dvo, SIL164_DID_LO, &ch))
157	goto out;	157	goto out;
158		158
159	if (ch != (SIL164_DID & 0xff)) {	159	if (ch != (SIL164_DID & 0xff)) {
160	DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",	160	DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
161	ch, adapter->name, dvo->slave_addr);	161	ch, adapter->name, dvo->slave_addr);
162	goto out;	162	goto out;
163	}	163	}
164	sil->quiet = false;	164	sil->quiet = false;
165		165
166	DRM_DEBUG_KMS("init sil164 dvo controller successfully!\n");	166	DRM_DEBUG_KMS("init sil164 dvo controller successfully!\n");
167	return true;	167	return true;
168		168
169	out:	169	out:
170	kfree(sil);	170	kfree(sil);
171	return false;	171	return false;
172	}	172	}
173		173
174	static enum drm_connector_status sil164_detect(struct intel_dvo_device *dvo)	174	static enum drm_connector_status sil164_detect(struct intel_dvo_device *dvo)
175	{	175	{
176	uint8_t reg9;	176	uint8_t reg9;
177		177
178	sil164_readb(dvo, SIL164_REG9, ®9);	178	sil164_readb(dvo, SIL164_REG9, ®9);
179		179
180	if (reg9 & SIL164_9_HTPLG)	180	if (reg9 & SIL164_9_HTPLG)
181	return connector_status_connected;	181	return connector_status_connected;
182	else	182	else
183	return connector_status_disconnected;	183	return connector_status_disconnected;
184	}	184	}
185		185
186	static enum drm_mode_status sil164_mode_valid(struct intel_dvo_device *dvo,	186	static enum drm_mode_status sil164_mode_valid(struct intel_dvo_device *dvo,
187	struct drm_display_mode *mode)	187	struct drm_display_mode *mode)
188	{	188	{
189	return MODE_OK;	189	return MODE_OK;
190	}	190	}
191		191
192	static void sil164_mode_set(struct intel_dvo_device *dvo,	192	static void sil164_mode_set(struct intel_dvo_device *dvo,
193	struct drm_display_mode *mode,	193	struct drm_display_mode *mode,
194	struct drm_display_mode *adjusted_mode)	194	struct drm_display_mode *adjusted_mode)
195	{	195	{
196	/* As long as the basics are set up, since we don't have clock	196	/* As long as the basics are set up, since we don't have clock
197	* dependencies in the mode setup, we can just leave the	197	* dependencies in the mode setup, we can just leave the
198	* registers alone and everything will work fine.	198	* registers alone and everything will work fine.
199	*/	199	*/
200	/* recommended programming sequence from doc */	200	/* recommended programming sequence from doc */
201	/*sil164_writeb(sil, 0x08, 0x30);	201	/*sil164_writeb(sil, 0x08, 0x30);
202	sil164_writeb(sil, 0x09, 0x00);	202	sil164_writeb(sil, 0x09, 0x00);
203	sil164_writeb(sil, 0x0a, 0x90);	203	sil164_writeb(sil, 0x0a, 0x90);
204	sil164_writeb(sil, 0x0c, 0x89);	204	sil164_writeb(sil, 0x0c, 0x89);
205	sil164_writeb(sil, 0x08, 0x31);*/	205	sil164_writeb(sil, 0x08, 0x31);*/
206	/* don't do much */	206	/* don't do much */
207	return;	207	return;
208	}	208	}
209		209
210	/* set the SIL164 power state */	210	/* set the SIL164 power state */
211	static void sil164_dpms(struct intel_dvo_device *dvo, int mode)	211	static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
212	{	212	{
213	int ret;

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/dvo_sil164.c – Rev 2342 → 3031