Subversion Repositories Kolibri OS

Rev

Rev 2330 | Rev 5060 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2330 Serge 1
/*
2
 * Copyright © 2007 Dave Mueller
3
 *
4
 * Permission is hereby granted, free of charge, to any person obtaining a
5
 * copy of this software and associated documentation files (the "Software"),
6
 * to deal in the Software without restriction, including without limitation
7
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8
 * and/or sell copies of the Software, and to permit persons to whom the
9
 * Software is furnished to do so, subject to the following conditions:
10
 *
11
 * The above copyright notice and this permission notice (including the next
12
 * paragraph) shall be included in all copies or substantial portions of the
13
 * Software.
14
 *
15
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21
 * IN THE SOFTWARE.
22
 *
23
 * Authors:
24
 *    Dave Mueller 
25
 *
26
 */
27
 
28
#include "dvo.h"
29
 
30
/* register definitions according to the TFP410 data sheet */
31
#define TFP410_VID		0x014C
32
#define TFP410_DID		0x0410
33
 
34
#define TFP410_VID_LO		0x00
35
#define TFP410_VID_HI		0x01
36
#define TFP410_DID_LO		0x02
37
#define TFP410_DID_HI		0x03
38
#define TFP410_REV		0x04
39
 
40
#define TFP410_CTL_1		0x08
41
#define TFP410_CTL_1_TDIS	(1<<6)
42
#define TFP410_CTL_1_VEN	(1<<5)
43
#define TFP410_CTL_1_HEN	(1<<4)
44
#define TFP410_CTL_1_DSEL	(1<<3)
45
#define TFP410_CTL_1_BSEL	(1<<2)
46
#define TFP410_CTL_1_EDGE	(1<<1)
47
#define TFP410_CTL_1_PD		(1<<0)
48
 
49
#define TFP410_CTL_2		0x09
50
#define TFP410_CTL_2_VLOW	(1<<7)
51
#define TFP410_CTL_2_MSEL_MASK	(0x7<<4)
52
#define TFP410_CTL_2_MSEL	(1<<4)
53
#define TFP410_CTL_2_TSEL	(1<<3)
54
#define TFP410_CTL_2_RSEN	(1<<2)
55
#define TFP410_CTL_2_HTPLG	(1<<1)
56
#define TFP410_CTL_2_MDI	(1<<0)
57
 
58
#define TFP410_CTL_3		0x0A
59
#define TFP410_CTL_3_DK_MASK 	(0x7<<5)
60
#define TFP410_CTL_3_DK		(1<<5)
61
#define TFP410_CTL_3_DKEN	(1<<4)
62
#define TFP410_CTL_3_CTL_MASK	(0x7<<1)
63
#define TFP410_CTL_3_CTL	(1<<1)
64
 
65
#define TFP410_USERCFG		0x0B
66
 
67
#define TFP410_DE_DLY		0x32
68
 
69
#define TFP410_DE_CTL		0x33
70
#define TFP410_DE_CTL_DEGEN	(1<<6)
71
#define TFP410_DE_CTL_VSPOL	(1<<5)
72
#define TFP410_DE_CTL_HSPOL	(1<<4)
73
#define TFP410_DE_CTL_DEDLY8	(1<<0)
74
 
75
#define TFP410_DE_TOP		0x34
76
 
77
#define TFP410_DE_CNT_LO	0x36
78
#define TFP410_DE_CNT_HI	0x37
79
 
80
#define TFP410_DE_LIN_LO	0x38
81
#define TFP410_DE_LIN_HI	0x39
82
 
83
#define TFP410_H_RES_LO		0x3A
84
#define TFP410_H_RES_HI		0x3B
85
 
86
#define TFP410_V_RES_LO		0x3C
87
#define TFP410_V_RES_HI		0x3D
88
 
89
struct tfp410_priv {
90
	bool quiet;
91
};
92
 
93
static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
94
{
95
	struct tfp410_priv *tfp = dvo->dev_priv;
96
	struct i2c_adapter *adapter = dvo->i2c_bus;
97
	u8 out_buf[2];
98
	u8 in_buf[2];
99
 
100
	struct i2c_msg msgs[] = {
101
		{
102
			.addr = dvo->slave_addr,
103
			.flags = 0,
104
			.len = 1,
105
			.buf = out_buf,
106
		},
107
		{
108
			.addr = dvo->slave_addr,
109
			.flags = I2C_M_RD,
110
			.len = 1,
111
			.buf = in_buf,
112
		}
113
	};
114
 
115
	out_buf[0] = addr;
116
	out_buf[1] = 0;
117
 
118
	if (i2c_transfer(adapter, msgs, 2) == 2) {
119
		*ch = in_buf[0];
120
		return true;
121
	};
122
 
123
	if (!tfp->quiet) {
124
		DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
125
			  addr, adapter->name, dvo->slave_addr);
126
	}
127
	return false;
128
}
129
 
130
static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
131
{
132
	struct tfp410_priv *tfp = dvo->dev_priv;
133
	struct i2c_adapter *adapter = dvo->i2c_bus;
134
	uint8_t out_buf[2];
135
	struct i2c_msg msg = {
136
		.addr = dvo->slave_addr,
137
		.flags = 0,
138
		.len = 2,
139
		.buf = out_buf,
140
	};
141
 
142
	out_buf[0] = addr;
143
	out_buf[1] = ch;
144
 
145
	if (i2c_transfer(adapter, &msg, 1) == 1)
146
		return true;
147
 
148
	if (!tfp->quiet) {
149
		DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
150
			  addr, adapter->name, dvo->slave_addr);
151
	}
152
 
153
	return false;
154
}
155
 
156
static int tfp410_getid(struct intel_dvo_device *dvo, int addr)
157
{
158
	uint8_t ch1, ch2;
159
 
160
	if (tfp410_readb(dvo, addr+0, &ch1) &&
161
	    tfp410_readb(dvo, addr+1, &ch2))
162
		return ((ch2 << 8) & 0xFF00) | (ch1 & 0x00FF);
163
 
164
	return -1;
165
}
166
 
167
/* Ti TFP410 driver for chip on i2c bus */
168
static bool tfp410_init(struct intel_dvo_device *dvo,
169
			struct i2c_adapter *adapter)
170
{
171
	/* this will detect the tfp410 chip on the specified i2c bus */
172
	struct tfp410_priv *tfp;
173
	int id;
174
 
175
	tfp = kzalloc(sizeof(struct tfp410_priv), GFP_KERNEL);
176
	if (tfp == NULL)
177
		return false;
178
 
179
	dvo->i2c_bus = adapter;
180
	dvo->dev_priv = tfp;
181
	tfp->quiet = true;
182
 
183
	if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) {
184
		DRM_DEBUG_KMS("tfp410 not detected got VID %X: from %s "
185
				"Slave %d.\n",
186
			  id, adapter->name, dvo->slave_addr);
187
		goto out;
188
	}
189
 
190
	if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) {
191
		DRM_DEBUG_KMS("tfp410 not detected got DID %X: from %s "
192
				"Slave %d.\n",
193
			  id, adapter->name, dvo->slave_addr);
194
		goto out;
195
	}
196
	tfp->quiet = false;
197
	return true;
198
out:
199
	kfree(tfp);
200
	return false;
201
}
202
 
203
static enum drm_connector_status tfp410_detect(struct intel_dvo_device *dvo)
204
{
205
	enum drm_connector_status ret = connector_status_disconnected;
206
	uint8_t ctl2;
207
 
208
	if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) {
209
		if (ctl2 & TFP410_CTL_2_RSEN)
210
			ret = connector_status_connected;
211
		else
212
			ret = connector_status_disconnected;
213
	}
214
 
215
	return ret;
216
}
217
 
218
static enum drm_mode_status tfp410_mode_valid(struct intel_dvo_device *dvo,
219
					      struct drm_display_mode *mode)
220
{
221
	return MODE_OK;
222
}
223
 
224
static void tfp410_mode_set(struct intel_dvo_device *dvo,
225
			    struct drm_display_mode *mode,
226
			    struct drm_display_mode *adjusted_mode)
227
{
228
    /* As long as the basics are set up, since we don't have clock dependencies
229
     * in the mode setup, we can just leave the registers alone and everything
230
     * will work fine.
231
     */
232
    /* don't do much */
233
    return;
234
}
235
 
236
/* set the tfp410 power state */
3031 serge 237
static void tfp410_dpms(struct intel_dvo_device *dvo, bool enable)
2330 Serge 238
{
239
	uint8_t ctl1;
240
 
241
	if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1))
242
		return;
243
 
3031 serge 244
	if (enable)
2330 Serge 245
		ctl1 |= TFP410_CTL_1_PD;
246
	else
247
		ctl1 &= ~TFP410_CTL_1_PD;
248
 
249
	tfp410_writeb(dvo, TFP410_CTL_1, ctl1);
250
}
251
 
3031 serge 252
static bool tfp410_get_hw_state(struct intel_dvo_device *dvo)
253
{
254
	uint8_t ctl1;
255
 
256
	if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1))
257
		return false;
258
 
259
	if (ctl1 & TFP410_CTL_1_PD)
260
		return true;
261
	else
262
		return false;
263
}
264
 
2330 Serge 265
static void tfp410_dump_regs(struct intel_dvo_device *dvo)
266
{
267
	uint8_t val, val2;
268
 
269
	tfp410_readb(dvo, TFP410_REV, &val);
270
	DRM_LOG_KMS("TFP410_REV: 0x%02X\n", val);
271
	tfp410_readb(dvo, TFP410_CTL_1, &val);
272
	DRM_LOG_KMS("TFP410_CTL1: 0x%02X\n", val);
273
	tfp410_readb(dvo, TFP410_CTL_2, &val);
274
	DRM_LOG_KMS("TFP410_CTL2: 0x%02X\n", val);
275
	tfp410_readb(dvo, TFP410_CTL_3, &val);
276
	DRM_LOG_KMS("TFP410_CTL3: 0x%02X\n", val);
277
	tfp410_readb(dvo, TFP410_USERCFG, &val);
278
	DRM_LOG_KMS("TFP410_USERCFG: 0x%02X\n", val);
279
	tfp410_readb(dvo, TFP410_DE_DLY, &val);
280
	DRM_LOG_KMS("TFP410_DE_DLY: 0x%02X\n", val);
281
	tfp410_readb(dvo, TFP410_DE_CTL, &val);
282
	DRM_LOG_KMS("TFP410_DE_CTL: 0x%02X\n", val);
283
	tfp410_readb(dvo, TFP410_DE_TOP, &val);
284
	DRM_LOG_KMS("TFP410_DE_TOP: 0x%02X\n", val);
285
	tfp410_readb(dvo, TFP410_DE_CNT_LO, &val);
286
	tfp410_readb(dvo, TFP410_DE_CNT_HI, &val2);
287
	DRM_LOG_KMS("TFP410_DE_CNT: 0x%02X%02X\n", val2, val);
288
	tfp410_readb(dvo, TFP410_DE_LIN_LO, &val);
289
	tfp410_readb(dvo, TFP410_DE_LIN_HI, &val2);
290
	DRM_LOG_KMS("TFP410_DE_LIN: 0x%02X%02X\n", val2, val);
291
	tfp410_readb(dvo, TFP410_H_RES_LO, &val);
292
	tfp410_readb(dvo, TFP410_H_RES_HI, &val2);
293
	DRM_LOG_KMS("TFP410_H_RES: 0x%02X%02X\n", val2, val);
294
	tfp410_readb(dvo, TFP410_V_RES_LO, &val);
295
	tfp410_readb(dvo, TFP410_V_RES_HI, &val2);
296
	DRM_LOG_KMS("TFP410_V_RES: 0x%02X%02X\n", val2, val);
297
}
298
 
299
static void tfp410_destroy(struct intel_dvo_device *dvo)
300
{
301
	struct tfp410_priv *tfp = dvo->dev_priv;
302
 
303
	if (tfp) {
304
		kfree(tfp);
305
		dvo->dev_priv = NULL;
306
	}
307
}
308
 
309
struct intel_dvo_dev_ops tfp410_ops = {
310
	.init = tfp410_init,
311
	.detect = tfp410_detect,
312
	.mode_valid = tfp410_mode_valid,
313
	.mode_set = tfp410_mode_set,
314
	.dpms = tfp410_dpms,
3031 serge 315
	.get_hw_state = tfp410_get_hw_state,
2330 Serge 316
	.dump_regs = tfp410_dump_regs,
317
	.destroy = tfp410_destroy,
318
};