aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/sbus
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/sbus')
-rw-r--r--drivers/sbus/char/Kconfig9
-rw-r--r--drivers/sbus/char/Makefile2
-rw-r--r--drivers/sbus/char/vfc.h171
-rw-r--r--drivers/sbus/char/vfc_dev.c736
-rw-r--r--drivers/sbus/char/vfc_i2c.c335
-rw-r--r--drivers/sbus/char/vfc_i2c.h44
6 files changed, 0 insertions, 1297 deletions
diff --git a/drivers/sbus/char/Kconfig b/drivers/sbus/char/Kconfig
index 9cd54ec63aef..3fd2bc95b514 100644
--- a/drivers/sbus/char/Kconfig
+++ b/drivers/sbus/char/Kconfig
@@ -30,15 +30,6 @@ config OBP_FLASH
30 The OpenBoot PROM on Ultra systems is flashable. If you want to be 30 The OpenBoot PROM on Ultra systems is flashable. If you want to be
31 able to upgrade the OBP firmware, say Y here. 31 able to upgrade the OBP firmware, say Y here.
32 32
33config SUN_VIDEOPIX
34 tristate "Videopix Frame Grabber (EXPERIMENTAL)"
35 depends on EXPERIMENTAL && (BROKEN || !64BIT)
36 help
37 Say Y here to support the Videopix Frame Grabber from Sun
38 Microsystems, commonly found on SPARCstations. This card, which is
39 based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and
40 SVIDEO signals.
41
42config TADPOLE_TS102_UCTRL 33config TADPOLE_TS102_UCTRL
43 tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)" 34 tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
44 depends on EXPERIMENTAL && SPARC32 35 depends on EXPERIMENTAL && SPARC32
diff --git a/drivers/sbus/char/Makefile b/drivers/sbus/char/Makefile
index d8b2d0c0ebd5..e15bd5e39463 100644
--- a/drivers/sbus/char/Makefile
+++ b/drivers/sbus/char/Makefile
@@ -7,7 +7,6 @@
7# Rewritten to use lists instead of if-statements. 7# Rewritten to use lists instead of if-statements.
8# 8#
9 9
10vfc-objs := vfc_dev.o vfc_i2c.o
11bbc-objs := bbc_i2c.o bbc_envctrl.o 10bbc-objs := bbc_i2c.o bbc_envctrl.o
12 11
13obj-$(CONFIG_ENVCTRL) += envctrl.o 12obj-$(CONFIG_ENVCTRL) += envctrl.o
@@ -17,7 +16,6 @@ obj-$(CONFIG_WATCHDOG_RIO) += riowatchdog.o
17obj-$(CONFIG_OBP_FLASH) += flash.o 16obj-$(CONFIG_OBP_FLASH) += flash.o
18obj-$(CONFIG_SUN_OPENPROMIO) += openprom.o 17obj-$(CONFIG_SUN_OPENPROMIO) += openprom.o
19obj-$(CONFIG_SUN_MOSTEK_RTC) += rtc.o 18obj-$(CONFIG_SUN_MOSTEK_RTC) += rtc.o
20obj-$(CONFIG_SUN_VIDEOPIX) += vfc.o
21obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o 19obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o
22obj-$(CONFIG_SUN_JSFLASH) += jsflash.o 20obj-$(CONFIG_SUN_JSFLASH) += jsflash.o
23obj-$(CONFIG_BBC_I2C) += bbc.o 21obj-$(CONFIG_BBC_I2C) += bbc.o
diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
deleted file mode 100644
index a5240c52aa0b..000000000000
--- a/drivers/sbus/char/vfc.h
+++ /dev/null
@@ -1,171 +0,0 @@
1#ifndef _LINUX_VFC_H_
2#define _LINUX_VFC_H_
3
4/*
5 * The control register for the vfc is at offset 0x4000
6 * The first field ram bank is located at offset 0x5000
7 * The second field ram bank is at offset 0x7000
8 * i2c_reg address the Phillips PCF8584(see notes in vfc_i2c.c)
9 * data and transmit register.
10 * i2c_s1 controls register s1 of the PCF8584
11 * i2c_write seems to be similar to i2c_write but I am not
12 * quite sure why sun uses it
13 *
14 * I am also not sure whether or not you can read the fram bank as a
15 * whole or whether you must read each word individually from offset
16 * 0x5000 as soon as I figure it out I will update this file */
17
18struct vfc_regs {
19 char pad1[0x4000];
20 unsigned int control; /* Offset 0x4000 */
21 char pad2[0xffb]; /* from offset 0x4004 to 0x5000 */
22 unsigned int fram_bank1; /* Offset 0x5000 */
23 char pad3[0xffb]; /* from offset 0x5004 to 0x6000 */
24 unsigned int i2c_reg; /* Offset 0x6000 */
25 unsigned int i2c_magic2; /* Offset 0x6004 */
26 unsigned int i2c_s1; /* Offset 0x6008 */
27 unsigned int i2c_write; /* Offset 0x600c */
28 char pad4[0xff0]; /* from offset 0x6010 to 0x7000 */
29 unsigned int fram_bank2; /* Offset 0x7000 */
30 char pad5[0x1000];
31};
32
33#define VFC_SAA9051_NR (13)
34#define VFC_SAA9051_ADDR (0x8a)
35 /* The saa9051 returns the following for its status
36 * bit 0 - 0
37 * bit 1 - SECAM color detected (1=found,0=not found)
38 * bit 2 - COLOR detected (1=found,0=not found)
39 * bit 3 - 0
40 * bit 4 - Field frequency bit (1=60Hz (NTSC), 0=50Hz (PAL))
41 * bit 5 - 1
42 * bit 6 - horizontal frequency lock (1=transmitter found,
43 * 0=no transmitter)
44 * bit 7 - Power on reset bit (1=reset,0=at least one successful
45 * read of the status byte)
46 */
47
48#define VFC_SAA9051_PONRES (0x80)
49#define VFC_SAA9051_HLOCK (0x40)
50#define VFC_SAA9051_FD (0x10)
51#define VFC_SAA9051_CD (0x04)
52#define VFC_SAA9051_CS (0x02)
53
54
55/* The various saa9051 sub addresses */
56
57#define VFC_SAA9051_IDEL (0)
58#define VFC_SAA9051_HSY_START (1)
59#define VFC_SAA9051_HSY_STOP (2)
60#define VFC_SAA9051_HC_START (3)
61#define VFC_SAA9051_HC_STOP (4)
62#define VFC_SAA9051_HS_START (5)
63#define VFC_SAA9051_HORIZ_PEAK (6)
64#define VFC_SAA9051_HUE (7)
65#define VFC_SAA9051_C1 (8)
66#define VFC_SAA9051_C2 (9)
67#define VFC_SAA9051_C3 (0xa)
68#define VFC_SAA9051_SECAM_DELAY (0xb)
69
70
71/* Bit settings for saa9051 sub address 0x06 */
72
73#define VFC_SAA9051_AP1 (0x01)
74#define VFC_SAA9051_AP2 (0x02)
75#define VFC_SAA9051_COR1 (0x04)
76#define VFC_SAA9051_COR2 (0x08)
77#define VFC_SAA9051_BP1 (0x10)
78#define VFC_SAA9051_BP2 (0x20)
79#define VFC_SAA9051_PF (0x40)
80#define VFC_SAA9051_BY (0x80)
81
82
83/* Bit settings for saa9051 sub address 0x08 */
84
85#define VFC_SAA9051_CCFR0 (0x01)
86#define VFC_SAA9051_CCFR1 (0x02)
87#define VFC_SAA9051_YPN (0x04)
88#define VFC_SAA9051_ALT (0x08)
89#define VFC_SAA9051_CO (0x10)
90#define VFC_SAA9051_VTR (0x20)
91#define VFC_SAA9051_FS (0x40)
92#define VFC_SAA9051_HPLL (0x80)
93
94
95/* Bit settings for saa9051 sub address 9 */
96
97#define VFC_SAA9051_SS0 (0x01)
98#define VFC_SAA9051_SS1 (0x02)
99#define VFC_SAA9051_AFCC (0x04)
100#define VFC_SAA9051_CI (0x08)
101#define VFC_SAA9051_SA9D4 (0x10) /* Don't care bit */
102#define VFC_SAA9051_OEC (0x20)
103#define VFC_SAA9051_OEY (0x40)
104#define VFC_SAA9051_VNL (0x80)
105
106
107/* Bit settings for saa9051 sub address 0x0A */
108
109#define VFC_SAA9051_YDL0 (0x01)
110#define VFC_SAA9051_YDL1 (0x02)
111#define VFC_SAA9051_YDL2 (0x04)
112#define VFC_SAA9051_SS2 (0x08)
113#define VFC_SAA9051_SS3 (0x10)
114#define VFC_SAA9051_YC (0x20)
115#define VFC_SAA9051_CT (0x40)
116#define VFC_SAA9051_SYC (0x80)
117
118
119#define VFC_SAA9051_SA(a,b) ((a)->saa9051_state_array[(b)+1])
120#define vfc_update_saa9051(a) (vfc_i2c_sendbuf((a),VFC_SAA9051_ADDR,\
121 (a)->saa9051_state_array,\
122 VFC_SAA9051_NR))
123
124
125struct vfc_dev {
126 volatile struct vfc_regs __iomem *regs;
127 struct vfc_regs *phys_regs;
128 unsigned int control_reg;
129 struct mutex device_lock_mtx;
130 int instance;
131 int busy;
132 unsigned long which_io;
133 unsigned char saa9051_state_array[VFC_SAA9051_NR];
134};
135
136void captstat_reset(struct vfc_dev *);
137void memptr_reset(struct vfc_dev *);
138
139int vfc_pcf8584_init(struct vfc_dev *);
140void vfc_i2c_delay_no_busy(struct vfc_dev *, unsigned long);
141void vfc_i2c_delay(struct vfc_dev *);
142int vfc_i2c_sendbuf(struct vfc_dev *, unsigned char, char *, int) ;
143int vfc_i2c_recvbuf(struct vfc_dev *, unsigned char, char *, int) ;
144int vfc_i2c_reset_bus(struct vfc_dev *);
145int vfc_init_i2c_bus(struct vfc_dev *);
146
147#define VFC_CONTROL_DIAGMODE 0x10000000
148#define VFC_CONTROL_MEMPTR 0x20000000
149#define VFC_CONTROL_CAPTURE 0x02000000
150#define VFC_CONTROL_CAPTRESET 0x04000000
151
152#define VFC_STATUS_CAPTURE 0x08000000
153
154#ifdef VFC_IOCTL_DEBUG
155#define VFC_IOCTL_DEBUG_PRINTK(a) printk a
156#else
157#define VFC_IOCTL_DEBUG_PRINTK(a)
158#endif
159
160#ifdef VFC_I2C_DEBUG
161#define VFC_I2C_DEBUG_PRINTK(a) printk a
162#else
163#define VFC_I2C_DEBUG_PRINTK(a)
164#endif
165
166#endif /* _LINUX_VFC_H_ */
167
168
169
170
171
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
deleted file mode 100644
index 25181bb7d627..000000000000
--- a/drivers/sbus/char/vfc_dev.c
+++ /dev/null
@@ -1,736 +0,0 @@
1/*
2 * drivers/sbus/char/vfc_dev.c
3 *
4 * Driver for the Videopix Frame Grabber.
5 *
6 * In order to use the VFC you need to program the video controller
7 * chip. This chip is the Phillips SAA9051. You need to call their
8 * documentation ordering line to get the docs.
9 *
10 * There is very little documentation on the VFC itself. There is
11 * some useful info that can be found in the manuals that come with
12 * the card. I will hopefully write some better docs at a later date.
13 *
14 * Copyright (C) 1996 Manish Vachharajani (mvachhar@noc.rutgers.edu)
15 * */
16
17#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/string.h>
20#include <linux/slab.h>
21#include <linux/errno.h>
22#include <linux/fs.h>
23#include <linux/delay.h>
24#include <linux/spinlock.h>
25#include <linux/mutex.h>
26#include <linux/mm.h>
27#include <linux/smp_lock.h>
28
29#include <asm/openprom.h>
30#include <asm/oplib.h>
31#include <asm/io.h>
32#include <asm/system.h>
33#include <asm/sbus.h>
34#include <asm/page.h>
35#include <asm/pgtable.h>
36#include <asm/uaccess.h>
37
38#define VFC_MAJOR (60)
39
40#if 0
41#define VFC_IOCTL_DEBUG
42#endif
43
44#include "vfc.h"
45#include <asm/vfc_ioctls.h>
46
47static const struct file_operations vfc_fops;
48static struct vfc_dev **vfc_dev_lst;
49static char vfcstr[]="vfc";
50static unsigned char saa9051_init_array[VFC_SAA9051_NR] = {
51 0x00, 0x64, 0x72, 0x52,
52 0x36, 0x18, 0xff, 0x20,
53 0xfc, 0x77, 0xe3, 0x50,
54 0x3e
55};
56
57static void vfc_lock_device(struct vfc_dev *dev)
58{
59 mutex_lock(&dev->device_lock_mtx);
60}
61
62static void vfc_unlock_device(struct vfc_dev *dev)
63{
64 mutex_unlock(&dev->device_lock_mtx);
65}
66
67
68static void vfc_captstat_reset(struct vfc_dev *dev)
69{
70 dev->control_reg |= VFC_CONTROL_CAPTRESET;
71 sbus_writel(dev->control_reg, &dev->regs->control);
72 dev->control_reg &= ~VFC_CONTROL_CAPTRESET;
73 sbus_writel(dev->control_reg, &dev->regs->control);
74 dev->control_reg |= VFC_CONTROL_CAPTRESET;
75 sbus_writel(dev->control_reg, &dev->regs->control);
76}
77
78static void vfc_memptr_reset(struct vfc_dev *dev)
79{
80 dev->control_reg |= VFC_CONTROL_MEMPTR;
81 sbus_writel(dev->control_reg, &dev->regs->control);
82 dev->control_reg &= ~VFC_CONTROL_MEMPTR;
83 sbus_writel(dev->control_reg, &dev->regs->control);
84 dev->control_reg |= VFC_CONTROL_MEMPTR;
85 sbus_writel(dev->control_reg, &dev->regs->control);
86}
87
88static int vfc_csr_init(struct vfc_dev *dev)
89{
90 dev->control_reg = 0x80000000;
91 sbus_writel(dev->control_reg, &dev->regs->control);
92 udelay(200);
93 dev->control_reg &= ~0x80000000;
94 sbus_writel(dev->control_reg, &dev->regs->control);
95 udelay(100);
96 sbus_writel(0x0f000000, &dev->regs->i2c_magic2);
97
98 vfc_memptr_reset(dev);
99
100 dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
101 dev->control_reg &= ~VFC_CONTROL_CAPTURE;
102 dev->control_reg |= 0x40000000;
103 sbus_writel(dev->control_reg, &dev->regs->control);
104
105 vfc_captstat_reset(dev);
106
107 return 0;
108}
109
110static int vfc_saa9051_init(struct vfc_dev *dev)
111{
112 int i;
113
114 for (i = 0; i < VFC_SAA9051_NR; i++)
115 dev->saa9051_state_array[i] = saa9051_init_array[i];
116
117 vfc_i2c_sendbuf(dev,VFC_SAA9051_ADDR,
118 dev->saa9051_state_array, VFC_SAA9051_NR);
119 return 0;
120}
121
122static int init_vfc_hw(struct vfc_dev *dev)
123{
124 vfc_lock_device(dev);
125 vfc_csr_init(dev);
126
127 vfc_pcf8584_init(dev);
128 vfc_init_i2c_bus(dev); /* hopefully this doesn't undo the magic
129 sun code above*/
130 vfc_saa9051_init(dev);
131 vfc_unlock_device(dev);
132 return 0;
133}
134
135static int init_vfc_devstruct(struct vfc_dev *dev, int instance)
136{
137 dev->instance=instance;
138 mutex_init(&dev->device_lock_mtx);
139 dev->control_reg=0;
140 dev->busy=0;
141 return 0;
142}
143
144static int init_vfc_device(struct sbus_dev *sdev,struct vfc_dev *dev,
145 int instance)
146{
147 if(dev == NULL) {
148 printk(KERN_ERR "VFC: Bogus pointer passed\n");
149 return -ENOMEM;
150 }
151 printk("Initializing vfc%d\n",instance);
152 dev->regs = NULL;
153 dev->regs = (volatile struct vfc_regs __iomem *)
154 sbus_ioremap(&sdev->resource[0], 0,
155 sizeof(struct vfc_regs), vfcstr);
156 dev->which_io = sdev->reg_addrs[0].which_io;
157 dev->phys_regs = (struct vfc_regs *) sdev->reg_addrs[0].phys_addr;
158 if (dev->regs == NULL)
159 return -EIO;
160
161 printk("vfc%d: registers mapped at phys_addr: 0x%lx\n virt_addr: 0x%lx\n",
162 instance,(unsigned long)sdev->reg_addrs[0].phys_addr,(unsigned long)dev->regs);
163
164 if (init_vfc_devstruct(dev, instance))
165 return -EINVAL;
166 if (init_vfc_hw(dev))
167 return -EIO;
168 return 0;
169}
170
171
172static struct vfc_dev *vfc_get_dev_ptr(int instance)
173{
174 return vfc_dev_lst[instance];
175}
176
177static DEFINE_SPINLOCK(vfc_dev_lock);
178
179static int vfc_open(struct inode *inode, struct file *file)
180{
181 struct vfc_dev *dev;
182
183 lock_kernel();
184 spin_lock(&vfc_dev_lock);
185 dev = vfc_get_dev_ptr(iminor(inode));
186 if (dev == NULL) {
187 spin_unlock(&vfc_dev_lock);
188 unlock_kernel();
189 return -ENODEV;
190 }
191 if (dev->busy) {
192 spin_unlock(&vfc_dev_lock);
193 unlock_kernel();
194 return -EBUSY;
195 }
196
197 dev->busy = 1;
198 spin_unlock(&vfc_dev_lock);
199
200 vfc_lock_device(dev);
201
202 vfc_csr_init(dev);
203 vfc_pcf8584_init(dev);
204 vfc_init_i2c_bus(dev);
205 vfc_saa9051_init(dev);
206 vfc_memptr_reset(dev);
207 vfc_captstat_reset(dev);
208
209 vfc_unlock_device(dev);
210 unlock_kernel();
211 return 0;
212}
213
214static int vfc_release(struct inode *inode,struct file *file)
215{
216 struct vfc_dev *dev;
217
218 spin_lock(&vfc_dev_lock);
219 dev = vfc_get_dev_ptr(iminor(inode));
220 if (!dev || !dev->busy) {
221 spin_unlock(&vfc_dev_lock);
222 return -EINVAL;
223 }
224 dev->busy = 0;
225 spin_unlock(&vfc_dev_lock);
226 return 0;
227}
228
229static int vfc_debug(struct vfc_dev *dev, int cmd, void __user *argp)
230{
231 struct vfc_debug_inout inout;
232 unsigned char *buffer;
233
234 if (!capable(CAP_SYS_ADMIN))
235 return -EPERM;
236
237 switch(cmd) {
238 case VFC_I2C_SEND:
239 if(copy_from_user(&inout, argp, sizeof(inout)))
240 return -EFAULT;
241
242 buffer = kmalloc(inout.len, GFP_KERNEL);
243 if (buffer == NULL)
244 return -ENOMEM;
245
246 if(copy_from_user(buffer, inout.buffer, inout.len)) {
247 kfree(buffer);
248 return -EFAULT;
249 }
250
251
252 vfc_lock_device(dev);
253 inout.ret=
254 vfc_i2c_sendbuf(dev,inout.addr & 0xff,
255 buffer,inout.len);
256
257 if (copy_to_user(argp,&inout,sizeof(inout))) {
258 vfc_unlock_device(dev);
259 kfree(buffer);
260 return -EFAULT;
261 }
262 vfc_unlock_device(dev);
263
264 break;
265 case VFC_I2C_RECV:
266 if (copy_from_user(&inout, argp, sizeof(inout)))
267 return -EFAULT;
268
269 buffer = kzalloc(inout.len, GFP_KERNEL);
270 if (buffer == NULL)
271 return -ENOMEM;
272
273 vfc_lock_device(dev);
274 inout.ret=
275 vfc_i2c_recvbuf(dev,inout.addr & 0xff
276 ,buffer,inout.len);
277 vfc_unlock_device(dev);
278
279 if (copy_to_user(inout.buffer, buffer, inout.len)) {
280 kfree(buffer);
281 return -EFAULT;
282 }
283 if (copy_to_user(argp,&inout,sizeof(inout))) {
284 kfree(buffer);
285 return -EFAULT;
286 }
287 kfree(buffer);
288 break;
289 default:
290 return -EINVAL;
291 };
292
293 return 0;
294}
295
296static int vfc_capture_start(struct vfc_dev *dev)
297{
298 vfc_captstat_reset(dev);
299 dev->control_reg = sbus_readl(&dev->regs->control);
300 if((dev->control_reg & VFC_STATUS_CAPTURE)) {
301 printk(KERN_ERR "vfc%d: vfc capture status not reset\n",
302 dev->instance);
303 return -EIO;
304 }
305
306 vfc_lock_device(dev);
307 dev->control_reg &= ~VFC_CONTROL_CAPTURE;
308 sbus_writel(dev->control_reg, &dev->regs->control);
309 dev->control_reg |= VFC_CONTROL_CAPTURE;
310 sbus_writel(dev->control_reg, &dev->regs->control);
311 dev->control_reg &= ~VFC_CONTROL_CAPTURE;
312 sbus_writel(dev->control_reg, &dev->regs->control);
313 vfc_unlock_device(dev);
314
315 return 0;
316}
317
318static int vfc_capture_poll(struct vfc_dev *dev)
319{
320 int timeout = 1000;
321
322 while (!timeout--) {
323 if (sbus_readl(&dev->regs->control) & VFC_STATUS_CAPTURE)
324 break;
325 vfc_i2c_delay_no_busy(dev, 100);
326 }
327 if(!timeout) {
328 printk(KERN_WARNING "vfc%d: capture timed out\n",
329 dev->instance);
330 return -ETIMEDOUT;
331 }
332 return 0;
333}
334
335
336
337static int vfc_set_control_ioctl(struct inode *inode, struct file *file,
338 struct vfc_dev *dev, unsigned long arg)
339{
340 int setcmd, ret = 0;
341
342 if (copy_from_user(&setcmd,(void __user *)arg,sizeof(unsigned int)))
343 return -EFAULT;
344
345 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSCTRL) arg=0x%x\n",
346 dev->instance,setcmd));
347
348 switch(setcmd) {
349 case MEMPRST:
350 vfc_lock_device(dev);
351 vfc_memptr_reset(dev);
352 vfc_unlock_device(dev);
353 ret=0;
354 break;
355 case CAPTRCMD:
356 vfc_capture_start(dev);
357 vfc_capture_poll(dev);
358 break;
359 case DIAGMODE:
360 if(capable(CAP_SYS_ADMIN)) {
361 vfc_lock_device(dev);
362 dev->control_reg |= VFC_CONTROL_DIAGMODE;
363 sbus_writel(dev->control_reg, &dev->regs->control);
364 vfc_unlock_device(dev);
365 ret = 0;
366 } else {
367 ret = -EPERM;
368 }
369 break;
370 case NORMMODE:
371 vfc_lock_device(dev);
372 dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
373 sbus_writel(dev->control_reg, &dev->regs->control);
374 vfc_unlock_device(dev);
375 ret = 0;
376 break;
377 case CAPTRSTR:
378 vfc_capture_start(dev);
379 ret = 0;
380 break;
381 case CAPTRWAIT:
382 vfc_capture_poll(dev);
383 ret = 0;
384 break;
385 default:
386 ret = -EINVAL;
387 break;
388 };
389
390 return ret;
391}
392
393
394static int vfc_port_change_ioctl(struct inode *inode, struct file *file,
395 struct vfc_dev *dev, unsigned long arg)
396{
397 int ret = 0;
398 int cmd;
399
400 if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
401 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
402 "vfc_port_change_ioctl\n",
403 dev->instance));
404 return -EFAULT;
405 }
406
407 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCPORTCHG) arg=0x%x\n",
408 dev->instance, cmd));
409
410 switch(cmd) {
411 case 1:
412 case 2:
413 VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x72;
414 VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x52;
415 VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0x36;
416 VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0x18;
417 VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) = VFC_SAA9051_BP2;
418 VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_CT | VFC_SAA9051_SS3;
419 VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0x3e;
420 break;
421 case 3:
422 VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x3a;
423 VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x17;
424 VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0xfa;
425 VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0xde;
426 VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) =
427 VFC_SAA9051_BY | VFC_SAA9051_PF | VFC_SAA9051_BP2;
428 VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_YC;
429 VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0;
430 VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
431 ~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
432 break;
433 default:
434 ret = -EINVAL;
435 return ret;
436 break;
437 }
438
439 switch(cmd) {
440 case 1:
441 VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |=
442 (VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
443 break;
444 case 2:
445 VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
446 ~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
447 VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |= VFC_SAA9051_SS0;
448 break;
449 case 3:
450 break;
451 default:
452 ret = -EINVAL;
453 return ret;
454 break;
455 }
456 VFC_SAA9051_SA(dev,VFC_SAA9051_C3) &= ~(VFC_SAA9051_SS2);
457 ret=vfc_update_saa9051(dev);
458 udelay(500);
459 VFC_SAA9051_SA(dev,VFC_SAA9051_C3) |= (VFC_SAA9051_SS2);
460 ret=vfc_update_saa9051(dev);
461 return ret;
462}
463
464static int vfc_set_video_ioctl(struct inode *inode, struct file *file,
465 struct vfc_dev *dev, unsigned long arg)
466{
467 int ret = 0;
468 int cmd;
469
470 if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
471 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
472 "vfc_set_video_ioctl\n",
473 dev->instance));
474 return ret;
475 }
476
477 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSVID) arg=0x%x\n",
478 dev->instance, cmd));
479 switch(cmd) {
480 case STD_NTSC:
481 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~VFC_SAA9051_ALT;
482 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_YPN |
483 VFC_SAA9051_CCFR0 | VFC_SAA9051_CCFR1 | VFC_SAA9051_FS;
484 ret = vfc_update_saa9051(dev);
485 break;
486 case STD_PAL:
487 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_YPN |
488 VFC_SAA9051_CCFR1 |
489 VFC_SAA9051_CCFR0 |
490 VFC_SAA9051_FS);
491 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_ALT;
492 ret = vfc_update_saa9051(dev);
493 break;
494
495 case COLOR_ON:
496 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_CO;
497 VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) &=
498 ~(VFC_SAA9051_BY | VFC_SAA9051_PF);
499 ret = vfc_update_saa9051(dev);
500 break;
501 case MONO:
502 VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_CO);
503 VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) |=
504 (VFC_SAA9051_BY | VFC_SAA9051_PF);
505 ret = vfc_update_saa9051(dev);
506 break;
507 default:
508 ret = -EINVAL;
509 break;
510 };
511
512 return ret;
513}
514
515static int vfc_get_video_ioctl(struct inode *inode, struct file *file,
516 struct vfc_dev *dev, unsigned long arg)
517{
518 int ret = 0;
519 unsigned int status = NO_LOCK;
520 unsigned char buf[1];
521
522 if(vfc_i2c_recvbuf(dev, VFC_SAA9051_ADDR, buf, 1)) {
523 printk(KERN_ERR "vfc%d: Unable to get status\n",
524 dev->instance);
525 return -EIO;
526 }
527
528 if(buf[0] & VFC_SAA9051_HLOCK) {
529 status = NO_LOCK;
530 } else if(buf[0] & VFC_SAA9051_FD) {
531 if(buf[0] & VFC_SAA9051_CD)
532 status = NTSC_COLOR;
533 else
534 status = NTSC_NOCOLOR;
535 } else {
536 if(buf[0] & VFC_SAA9051_CD)
537 status = PAL_COLOR;
538 else
539 status = PAL_NOCOLOR;
540 }
541 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGVID) returning status 0x%x; "
542 "buf[0]=%x\n", dev->instance, status, buf[0]));
543
544 if (copy_to_user((void __user *)arg,&status,sizeof(unsigned int))) {
545 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
546 "vfc_get_video_ioctl\n",
547 dev->instance));
548 return ret;
549 }
550 return ret;
551}
552
553static int vfc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
554 unsigned long arg)
555{
556 int ret = 0;
557 unsigned int tmp;
558 struct vfc_dev *dev;
559 void __user *argp = (void __user *)arg;
560
561 dev = vfc_get_dev_ptr(iminor(inode));
562 if(dev == NULL)
563 return -ENODEV;
564
565 switch(cmd & 0x0000ffff) {
566 case VFCGCTRL:
567#if 0
568 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGCTRL)\n", dev->instance));
569#endif
570 tmp = sbus_readl(&dev->regs->control);
571 if(copy_to_user(argp, &tmp, sizeof(unsigned int))) {
572 ret = -EFAULT;
573 break;
574 }
575 ret = 0;
576 break;
577 case VFCSCTRL:
578 ret = vfc_set_control_ioctl(inode, file, dev, arg);
579 break;
580 case VFCGVID:
581 ret = vfc_get_video_ioctl(inode, file, dev, arg);
582 break;
583 case VFCSVID:
584 ret = vfc_set_video_ioctl(inode, file, dev, arg);
585 break;
586 case VFCHUE:
587 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCHUE)\n", dev->instance));
588 if(copy_from_user(&tmp,argp,sizeof(unsigned int))) {
589 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer "
590 "to IOCTL(VFCHUE)", dev->instance));
591 ret = -EFAULT;
592 } else {
593 VFC_SAA9051_SA(dev,VFC_SAA9051_HUE) = tmp;
594 vfc_update_saa9051(dev);
595 ret = 0;
596 }
597 break;
598 case VFCPORTCHG:
599 ret = vfc_port_change_ioctl(inode, file, dev, arg);
600 break;
601 case VFCRDINFO:
602 ret = -EINVAL;
603 VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCRDINFO)\n", dev->instance));
604 break;
605 default:
606 ret = vfc_debug(vfc_get_dev_ptr(iminor(inode)), cmd, argp);
607 break;
608 };
609
610 return ret;
611}
612
613static int vfc_mmap(struct file *file, struct vm_area_struct *vma)
614{
615 unsigned int map_size, ret, map_offset;
616 struct vfc_dev *dev;
617
618 dev = vfc_get_dev_ptr(iminor(file->f_path.dentry->d_inode));
619 if(dev == NULL)
620 return -ENODEV;
621
622 map_size = vma->vm_end - vma->vm_start;
623 if(map_size > sizeof(struct vfc_regs))
624 map_size = sizeof(struct vfc_regs);
625
626 vma->vm_flags |=
627 (VM_MAYREAD | VM_MAYWRITE | VM_MAYSHARE);
628 map_offset = (unsigned int) (long)dev->phys_regs;
629 ret = io_remap_pfn_range(vma, vma->vm_start,
630 MK_IOSPACE_PFN(dev->which_io,
631 map_offset >> PAGE_SHIFT),
632 map_size, vma->vm_page_prot);
633
634 if(ret)
635 return -EAGAIN;
636
637 return 0;
638}
639
640
641static const struct file_operations vfc_fops = {
642 .owner = THIS_MODULE,
643 .llseek = no_llseek,
644 .ioctl = vfc_ioctl,
645 .mmap = vfc_mmap,
646 .open = vfc_open,
647 .release = vfc_release,
648};
649
650static int vfc_probe(void)
651{
652 struct sbus_bus *sbus;
653 struct sbus_dev *sdev = NULL;
654 int ret;
655 int instance = 0, cards = 0;
656
657 for_all_sbusdev(sdev, sbus) {
658 if (strcmp(sdev->prom_name, "vfc") == 0) {
659 cards++;
660 continue;
661 }
662 }
663
664 if (!cards)
665 return -ENODEV;
666
667 vfc_dev_lst = kcalloc(cards + 1, sizeof(struct vfc_dev*), GFP_KERNEL);
668 if (vfc_dev_lst == NULL)
669 return -ENOMEM;
670 vfc_dev_lst[cards] = NULL;
671
672 ret = register_chrdev(VFC_MAJOR, vfcstr, &vfc_fops);
673 if(ret) {
674 printk(KERN_ERR "Unable to get major number %d\n", VFC_MAJOR);
675 kfree(vfc_dev_lst);
676 return -EIO;
677 }
678 instance = 0;
679 for_all_sbusdev(sdev, sbus) {
680 if (strcmp(sdev->prom_name, "vfc") == 0) {
681 vfc_dev_lst[instance]=(struct vfc_dev *)
682 kmalloc(sizeof(struct vfc_dev), GFP_KERNEL);
683 if (vfc_dev_lst[instance] == NULL)
684 return -ENOMEM;
685 ret = init_vfc_device(sdev,
686 vfc_dev_lst[instance],
687 instance);
688 if(ret) {
689 printk(KERN_ERR "Unable to initialize"
690 " vfc%d device\n",
691 instance);
692 } else {
693 }
694
695 instance++;
696 continue;
697 }
698 }
699
700 return 0;
701}
702
703#ifdef MODULE
704int init_module(void)
705#else
706int vfc_init(void)
707#endif
708{
709 return vfc_probe();
710}
711
712#ifdef MODULE
713static void deinit_vfc_device(struct vfc_dev *dev)
714{
715 if(dev == NULL)
716 return;
717 sbus_iounmap(dev->regs, sizeof(struct vfc_regs));
718 kfree(dev);
719}
720
721void cleanup_module(void)
722{
723 struct vfc_dev **devp;
724
725 unregister_chrdev(VFC_MAJOR,vfcstr);
726
727 for (devp = vfc_dev_lst; *devp; devp++)
728 deinit_vfc_device(*devp);
729
730 kfree(vfc_dev_lst);
731 return;
732}
733#endif
734
735MODULE_LICENSE("GPL");
736
diff --git a/drivers/sbus/char/vfc_i2c.c b/drivers/sbus/char/vfc_i2c.c
deleted file mode 100644
index 32b986e0ed78..000000000000
--- a/drivers/sbus/char/vfc_i2c.c
+++ /dev/null
@@ -1,335 +0,0 @@
1/*
2 * drivers/sbus/char/vfc_i2c.c
3 *
4 * Driver for the Videopix Frame Grabber.
5 *
6 * Functions that support the Phillips i2c(I squared C) bus on the vfc
7 * Documentation for the Phillips I2C bus can be found on the
8 * phillips home page
9 *
10 * Copyright (C) 1996 Manish Vachharajani (mvachhar@noc.rutgers.edu)
11 *
12 */
13
14/* NOTE: It seems to me that the documentation regarding the
15pcd8584t/pcf8584 does not show the correct way to address the i2c bus.
16Based on the information on the I2C bus itself and the remainder of
17the Phillips docs the following algorithms appear to be correct. I am
18fairly certain that the flowcharts in the phillips docs are wrong. */
19
20
21#include <linux/kernel.h>
22#include <linux/string.h>
23#include <linux/slab.h>
24#include <linux/errno.h>
25#include <linux/sched.h>
26#include <linux/wait.h>
27#include <linux/delay.h>
28#include <asm/openprom.h>
29#include <asm/oplib.h>
30#include <asm/io.h>
31#include <asm/system.h>
32#include <asm/sbus.h>
33
34#if 0
35#define VFC_I2C_DEBUG
36#endif
37
38#include "vfc.h"
39#include "vfc_i2c.h"
40
41#define WRITE_S1(__val) \
42 sbus_writel(__val, &dev->regs->i2c_s1)
43#define WRITE_REG(__val) \
44 sbus_writel(__val, &dev->regs->i2c_reg)
45
46#define VFC_I2C_READ (0x1)
47#define VFC_I2C_WRITE (0x0)
48
49/******
50 The i2c bus controller chip on the VFC is a pcd8584t, but
51 phillips claims it doesn't exist. As far as I can tell it is
52 identical to the PCF8584 so I treat it like it is the pcf8584.
53
54 NOTE: The pcf8584 only cares
55 about the msb of the word you feed it
56*****/
57
58int vfc_pcf8584_init(struct vfc_dev *dev)
59{
60 /* This will also choose register S0_OWN so we can set it. */
61 WRITE_S1(RESET);
62
63 /* The pcf8584 shifts this value left one bit and uses
64 * it as its i2c bus address.
65 */
66 WRITE_REG(0x55000000);
67
68 /* This will set the i2c bus at the same speed sun uses,
69 * and set another magic bit.
70 */
71 WRITE_S1(SELECT(S2));
72 WRITE_REG(0x14000000);
73
74 /* Enable the serial port, idle the i2c bus and set
75 * the data reg to s0.
76 */
77 WRITE_S1(CLEAR_I2C_BUS);
78 udelay(100);
79 return 0;
80}
81
82void vfc_i2c_delay_no_busy(struct vfc_dev *dev, unsigned long usecs)
83{
84 schedule_timeout_uninterruptible(usecs_to_jiffies(usecs));
85}
86
87void inline vfc_i2c_delay(struct vfc_dev *dev)
88{
89 vfc_i2c_delay_no_busy(dev, 100);
90}
91
92int vfc_init_i2c_bus(struct vfc_dev *dev)
93{
94 WRITE_S1(ENABLE_SERIAL | SELECT(S0) | ACK);
95 vfc_i2c_reset_bus(dev);
96 return 0;
97}
98
99int vfc_i2c_reset_bus(struct vfc_dev *dev)
100{
101 VFC_I2C_DEBUG_PRINTK((KERN_DEBUG "vfc%d: Resetting the i2c bus\n",
102 dev->instance));
103 if(dev == NULL)
104 return -EINVAL;
105 if(dev->regs == NULL)
106 return -EINVAL;
107 WRITE_S1(SEND_I2C_STOP);
108 WRITE_S1(SEND_I2C_STOP | ACK);
109 vfc_i2c_delay(dev);
110 WRITE_S1(CLEAR_I2C_BUS);
111 VFC_I2C_DEBUG_PRINTK((KERN_DEBUG "vfc%d: I2C status %x\n",
112 dev->instance,
113 sbus_readl(&dev->regs->i2c_s1)));
114 return 0;
115}
116
117static int vfc_i2c_wait_for_bus(struct vfc_dev *dev)
118{
119 int timeout = 1000;
120
121 while(!(sbus_readl(&dev->regs->i2c_s1) & BB)) {
122 if(!(timeout--))
123 return -ETIMEDOUT;
124 vfc_i2c_delay(dev);
125 }
126 return 0;
127}
128
129static int vfc_i2c_wait_for_pin(struct vfc_dev *dev, int ack)
130{
131 int timeout = 1000;
132 int s1;
133
134 while ((s1 = sbus_readl(&dev->regs->i2c_s1)) & PIN) {
135 if (!(timeout--))
136 return -ETIMEDOUT;
137 vfc_i2c_delay(dev);
138 }
139 if (ack == VFC_I2C_ACK_CHECK) {
140 if(s1 & LRB)
141 return -EIO;
142 }
143 return 0;
144}
145
146#define SHIFT(a) ((a) << 24)
147static int vfc_i2c_xmit_addr(struct vfc_dev *dev, unsigned char addr,
148 char mode)
149{
150 int ret, raddr;
151#if 1
152 WRITE_S1(SEND_I2C_STOP | ACK);
153 WRITE_S1(SELECT(S0) | ENABLE_SERIAL);
154 vfc_i2c_delay(dev);
155#endif
156
157 switch(mode) {
158 case VFC_I2C_READ:
159 raddr = SHIFT(((unsigned int)addr | 0x1));
160 WRITE_REG(raddr);
161 VFC_I2C_DEBUG_PRINTK(("vfc%d: receiving from i2c addr 0x%x\n",
162 dev->instance, addr | 0x1));
163 break;
164 case VFC_I2C_WRITE:
165 raddr = SHIFT((unsigned int)addr & ~0x1);
166 WRITE_REG(raddr);
167 VFC_I2C_DEBUG_PRINTK(("vfc%d: sending to i2c addr 0x%x\n",
168 dev->instance, addr & ~0x1));
169 break;
170 default:
171 return -EINVAL;
172 };
173
174 WRITE_S1(SEND_I2C_START);
175 vfc_i2c_delay(dev);
176 ret = vfc_i2c_wait_for_pin(dev,VFC_I2C_ACK_CHECK); /* We wait
177 for the
178 i2c send
179 to finish
180 here but
181 Sun
182 doesn't,
183 hmm */
184 if (ret) {
185 printk(KERN_ERR "vfc%d: VFC xmit addr timed out or no ack\n",
186 dev->instance);
187 return ret;
188 } else if (mode == VFC_I2C_READ) {
189 if ((ret = sbus_readl(&dev->regs->i2c_reg) & 0xff000000) != raddr) {
190 printk(KERN_WARNING
191 "vfc%d: returned slave address "
192 "mismatch(%x,%x)\n",
193 dev->instance, raddr, ret);
194 }
195 }
196 return 0;
197}
198
199static int vfc_i2c_xmit_byte(struct vfc_dev *dev,unsigned char *byte)
200{
201 int ret;
202 u32 val = SHIFT((unsigned int)*byte);
203
204 WRITE_REG(val);
205
206 ret = vfc_i2c_wait_for_pin(dev, VFC_I2C_ACK_CHECK);
207 switch(ret) {
208 case -ETIMEDOUT:
209 printk(KERN_ERR "vfc%d: VFC xmit byte timed out or no ack\n",
210 dev->instance);
211 break;
212 case -EIO:
213 ret = XMIT_LAST_BYTE;
214 break;
215 default:
216 break;
217 };
218
219 return ret;
220}
221
222static int vfc_i2c_recv_byte(struct vfc_dev *dev, unsigned char *byte,
223 int last)
224{
225 int ret;
226
227 if (last) {
228 WRITE_REG(NEGATIVE_ACK);
229 VFC_I2C_DEBUG_PRINTK(("vfc%d: sending negative ack\n",
230 dev->instance));
231 } else {
232 WRITE_S1(ACK);
233 }
234
235 ret = vfc_i2c_wait_for_pin(dev, VFC_I2C_NO_ACK_CHECK);
236 if(ret) {
237 printk(KERN_ERR "vfc%d: "
238 "VFC recv byte timed out\n",
239 dev->instance);
240 }
241 *byte = (sbus_readl(&dev->regs->i2c_reg)) >> 24;
242 return ret;
243}
244
245int vfc_i2c_recvbuf(struct vfc_dev *dev, unsigned char addr,
246 char *buf, int count)
247{
248 int ret, last;
249
250 if(!(count && buf && dev && dev->regs) )
251 return -EINVAL;
252
253 if ((ret = vfc_i2c_wait_for_bus(dev))) {
254 printk(KERN_ERR "vfc%d: VFC I2C bus busy\n", dev->instance);
255 return ret;
256 }
257
258 if ((ret = vfc_i2c_xmit_addr(dev, addr, VFC_I2C_READ))) {
259 WRITE_S1(SEND_I2C_STOP);
260 vfc_i2c_delay(dev);
261 return ret;
262 }
263
264 last = 0;
265 while (count--) {
266 if (!count)
267 last = 1;
268 if ((ret = vfc_i2c_recv_byte(dev, buf, last))) {
269 printk(KERN_ERR "vfc%d: "
270 "VFC error while receiving byte\n",
271 dev->instance);
272 WRITE_S1(SEND_I2C_STOP);
273 ret = -EINVAL;
274 }
275 buf++;
276 }
277 WRITE_S1(SEND_I2C_STOP | ACK);
278 vfc_i2c_delay(dev);
279 return ret;
280}
281
282int vfc_i2c_sendbuf(struct vfc_dev *dev, unsigned char addr,
283 char *buf, int count)
284{
285 int ret;
286
287 if (!(buf && dev && dev->regs))
288 return -EINVAL;
289
290 if ((ret = vfc_i2c_wait_for_bus(dev))) {
291 printk(KERN_ERR "vfc%d: VFC I2C bus busy\n", dev->instance);
292 return ret;
293 }
294
295 if ((ret = vfc_i2c_xmit_addr(dev, addr, VFC_I2C_WRITE))) {
296 WRITE_S1(SEND_I2C_STOP);
297 vfc_i2c_delay(dev);
298 return ret;
299 }
300
301 while(count--) {
302 ret = vfc_i2c_xmit_byte(dev, buf);
303 switch(ret) {
304 case XMIT_LAST_BYTE:
305 VFC_I2C_DEBUG_PRINTK(("vfc%d: "
306 "Receiver ended transmission with "
307 " %d bytes remaining\n",
308 dev->instance, count));
309 ret = 0;
310 goto done;
311 break;
312 case 0:
313 break;
314 default:
315 printk(KERN_ERR "vfc%d: "
316 "VFC error while sending byte\n", dev->instance);
317 break;
318 };
319
320 buf++;
321 }
322done:
323 WRITE_S1(SEND_I2C_STOP | ACK);
324 vfc_i2c_delay(dev);
325 return ret;
326}
327
328
329
330
331
332
333
334
335
diff --git a/drivers/sbus/char/vfc_i2c.h b/drivers/sbus/char/vfc_i2c.h
deleted file mode 100644
index a2e6973209d5..000000000000
--- a/drivers/sbus/char/vfc_i2c.h
+++ /dev/null
@@ -1,44 +0,0 @@
1#ifndef _LINUX_VFC_I2C_H_
2#define _LINUX_VFC_I2C_H_
3
4/* control bits */
5#define PIN (0x80000000)
6#define ESO (0x40000000)
7#define ES1 (0x20000000)
8#define ES2 (0x10000000)
9#define ENI (0x08000000)
10#define STA (0x04000000)
11#define STO (0x02000000)
12#define ACK (0x01000000)
13
14/* status bits */
15#define STS (0x20000000)
16#define BER (0x10000000)
17#define LRB (0x08000000)
18#define AAS (0x04000000)
19#define LAB (0x02000000)
20#define BB (0x01000000)
21
22#define SEND_I2C_START (PIN | ESO | STA)
23#define SEND_I2C_STOP (PIN | ESO | STO)
24#define CLEAR_I2C_BUS (PIN | ESO | ACK)
25#define NEGATIVE_ACK ((ESO) & ~ACK)
26
27#define SELECT(a) (a)
28#define S0 (PIN | ESO | ES1)
29#define S0_OWN (PIN)
30#define S2 (PIN | ES1)
31#define S3 (PIN | ES2)
32
33#define ENABLE_SERIAL (PIN | ESO)
34#define DISABLE_SERIAL (PIN)
35#define RESET (PIN)
36
37#define XMIT_LAST_BYTE (1)
38#define VFC_I2C_ACK_CHECK (1)
39#define VFC_I2C_NO_ACK_CHECK (0)
40
41#endif /* _LINUX_VFC_I2C_H_ */
42
43
44
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 06:46:23 -0500