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 | };><>0) |