aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/w1/masters
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/w1/masters')
-rw-r--r--drivers/w1/masters/Kconfig27
-rw-r--r--drivers/w1/masters/Makefile7
-rw-r--r--drivers/w1/masters/ds2482.c24
-rw-r--r--drivers/w1/masters/ds2490.c (renamed from drivers/w1/masters/dscore.c)434
-rw-r--r--drivers/w1/masters/ds_w1_bridge.c174
-rw-r--r--drivers/w1/masters/dscore.h166
6 files changed, 315 insertions, 517 deletions
diff --git a/drivers/w1/masters/Kconfig b/drivers/w1/masters/Kconfig
index c6bad4dbdc64..2fb425536eae 100644
--- a/drivers/w1/masters/Kconfig
+++ b/drivers/w1/masters/Kconfig
@@ -15,24 +15,15 @@ config W1_MASTER_MATROX
15 This support is also available as a module. If so, the module 15 This support is also available as a module. If so, the module
16 will be called matrox_w1.ko. 16 will be called matrox_w1.ko.
17 17
18config W1_MASTER_DS9490 18config W1_MASTER_DS2490
19 tristate "DS9490R transport layer driver" 19 tristate "DS2490 USB <-> W1 transport layer for 1-wire"
20 depends on W1 && USB 20 depends on W1 && USB
21 help 21 help
22 Say Y here if you want to have a driver for DS9490R UWB <-> W1 bridge. 22 Say Y here if you want to have a driver for DS2490 based USB <-> W1 bridges,
23 23 for example DS9490*.
24 This support is also available as a module. If so, the module 24
25 will be called ds9490r.ko. 25 This support is also available as a module. If so, the module
26 26 will be called ds2490.ko.
27config W1_MASTER_DS9490_BRIDGE
28 tristate "DS9490R USB <-> W1 transport layer for 1-wire"
29 depends on W1_MASTER_DS9490
30 help
31 Say Y here if you want to communicate with your 1-wire devices
32 using DS9490R USB bridge.
33
34 This support is also available as a module. If so, the module
35 will be called ds_w1_bridge.ko.
36 27
37config W1_MASTER_DS2482 28config W1_MASTER_DS2482
38 tristate "Maxim DS2482 I2C to 1-Wire bridge" 29 tristate "Maxim DS2482 I2C to 1-Wire bridge"
diff --git a/drivers/w1/masters/Makefile b/drivers/w1/masters/Makefile
index 1f3c8b983dc1..4cee256a8134 100644
--- a/drivers/w1/masters/Makefile
+++ b/drivers/w1/masters/Makefile
@@ -3,11 +3,6 @@
3# 3#
4 4
5obj-$(CONFIG_W1_MASTER_MATROX) += matrox_w1.o 5obj-$(CONFIG_W1_MASTER_MATROX) += matrox_w1.o
6 6obj-$(CONFIG_W1_MASTER_DS2490) += ds2490.o
7obj-$(CONFIG_W1_MASTER_DS9490) += ds9490r.o
8ds9490r-objs := dscore.o
9
10obj-$(CONFIG_W1_MASTER_DS9490_BRIDGE) += ds_w1_bridge.o
11
12obj-$(CONFIG_W1_MASTER_DS2482) += ds2482.o 7obj-$(CONFIG_W1_MASTER_DS2482) += ds2482.o
13 8
diff --git a/drivers/w1/masters/ds2482.c b/drivers/w1/masters/ds2482.c
index d1cacd23576b..af492cc48db2 100644
--- a/drivers/w1/masters/ds2482.c
+++ b/drivers/w1/masters/ds2482.c
@@ -125,7 +125,7 @@ struct ds2482_w1_chan {
125 125
126struct ds2482_data { 126struct ds2482_data {
127 struct i2c_client client; 127 struct i2c_client client;
128 struct semaphore access_lock; 128 struct mutex access_lock;
129 129
130 /* 1-wire interface(s) */ 130 /* 1-wire interface(s) */
131 int w1_count; /* 1 or 8 */ 131 int w1_count; /* 1 or 8 */
@@ -265,7 +265,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
265 struct ds2482_data *pdev = pchan->pdev; 265 struct ds2482_data *pdev = pchan->pdev;
266 int status = -1; 266 int status = -1;
267 267
268 down(&pdev->access_lock); 268 mutex_lock(&pdev->access_lock);
269 269
270 /* Select the channel */ 270 /* Select the channel */
271 ds2482_wait_1wire_idle(pdev); 271 ds2482_wait_1wire_idle(pdev);
@@ -277,7 +277,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
277 bit ? 0xFF : 0)) 277 bit ? 0xFF : 0))
278 status = ds2482_wait_1wire_idle(pdev); 278 status = ds2482_wait_1wire_idle(pdev);
279 279
280 up(&pdev->access_lock); 280 mutex_unlock(&pdev->access_lock);
281 281
282 return (status & DS2482_REG_STS_SBR) ? 1 : 0; 282 return (status & DS2482_REG_STS_SBR) ? 1 : 0;
283} 283}
@@ -297,7 +297,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
297 struct ds2482_data *pdev = pchan->pdev; 297 struct ds2482_data *pdev = pchan->pdev;
298 int status = (3 << 5); 298 int status = (3 << 5);
299 299
300 down(&pdev->access_lock); 300 mutex_lock(&pdev->access_lock);
301 301
302 /* Select the channel */ 302 /* Select the channel */
303 ds2482_wait_1wire_idle(pdev); 303 ds2482_wait_1wire_idle(pdev);
@@ -309,7 +309,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
309 dbit ? 0xFF : 0)) 309 dbit ? 0xFF : 0))
310 status = ds2482_wait_1wire_idle(pdev); 310 status = ds2482_wait_1wire_idle(pdev);
311 311
312 up(&pdev->access_lock); 312 mutex_unlock(&pdev->access_lock);
313 313
314 /* Decode the status */ 314 /* Decode the status */
315 return (status >> 5); 315 return (status >> 5);
@@ -326,7 +326,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
326 struct ds2482_w1_chan *pchan = data; 326 struct ds2482_w1_chan *pchan = data;
327 struct ds2482_data *pdev = pchan->pdev; 327 struct ds2482_data *pdev = pchan->pdev;
328 328
329 down(&pdev->access_lock); 329 mutex_lock(&pdev->access_lock);
330 330
331 /* Select the channel */ 331 /* Select the channel */
332 ds2482_wait_1wire_idle(pdev); 332 ds2482_wait_1wire_idle(pdev);
@@ -336,7 +336,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
336 /* Send the write byte command */ 336 /* Send the write byte command */
337 ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte); 337 ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);
338 338
339 up(&pdev->access_lock); 339 mutex_unlock(&pdev->access_lock);
340} 340}
341 341
342/** 342/**
@@ -351,7 +351,7 @@ static u8 ds2482_w1_read_byte(void *data)
351 struct ds2482_data *pdev = pchan->pdev; 351 struct ds2482_data *pdev = pchan->pdev;
352 int result; 352 int result;
353 353
354 down(&pdev->access_lock); 354 mutex_lock(&pdev->access_lock);
355 355
356 /* Select the channel */ 356 /* Select the channel */
357 ds2482_wait_1wire_idle(pdev); 357 ds2482_wait_1wire_idle(pdev);
@@ -370,7 +370,7 @@ static u8 ds2482_w1_read_byte(void *data)
370 /* Read the data byte */ 370 /* Read the data byte */
371 result = i2c_smbus_read_byte(&pdev->client); 371 result = i2c_smbus_read_byte(&pdev->client);
372 372
373 up(&pdev->access_lock); 373 mutex_unlock(&pdev->access_lock);
374 374
375 return result; 375 return result;
376} 376}
@@ -389,7 +389,7 @@ static u8 ds2482_w1_reset_bus(void *data)
389 int err; 389 int err;
390 u8 retval = 1; 390 u8 retval = 1;
391 391
392 down(&pdev->access_lock); 392 mutex_lock(&pdev->access_lock);
393 393
394 /* Select the channel */ 394 /* Select the channel */
395 ds2482_wait_1wire_idle(pdev); 395 ds2482_wait_1wire_idle(pdev);
@@ -409,7 +409,7 @@ static u8 ds2482_w1_reset_bus(void *data)
409 0xF0); 409 0xF0);
410 } 410 }
411 411
412 up(&pdev->access_lock); 412 mutex_unlock(&pdev->access_lock);
413 413
414 return retval; 414 return retval;
415} 415}
@@ -482,7 +482,7 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
482 snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00", 482 snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00",
483 data->w1_count); 483 data->w1_count);
484 484
485 init_MUTEX(&data->access_lock); 485 mutex_init(&data->access_lock);
486 486
487 /* Tell the I2C layer a new client has arrived */ 487 /* Tell the I2C layer a new client has arrived */
488 if ((err = i2c_attach_client(new_client))) 488 if ((err = i2c_attach_client(new_client)))
diff --git a/drivers/w1/masters/dscore.c b/drivers/w1/masters/ds2490.c
index 2cf7776a7080..299e274d241a 100644
--- a/drivers/w1/masters/dscore.c
+++ b/drivers/w1/masters/ds2490.c
@@ -24,7 +24,136 @@
24#include <linux/mod_devicetable.h> 24#include <linux/mod_devicetable.h>
25#include <linux/usb.h> 25#include <linux/usb.h>
26 26
27#include "dscore.h" 27#include "../w1_int.h"
28#include "../w1.h"
29
30/* COMMAND TYPE CODES */
31#define CONTROL_CMD 0x00
32#define COMM_CMD 0x01
33#define MODE_CMD 0x02
34
35/* CONTROL COMMAND CODES */
36#define CTL_RESET_DEVICE 0x0000
37#define CTL_START_EXE 0x0001
38#define CTL_RESUME_EXE 0x0002
39#define CTL_HALT_EXE_IDLE 0x0003
40#define CTL_HALT_EXE_DONE 0x0004
41#define CTL_FLUSH_COMM_CMDS 0x0007
42#define CTL_FLUSH_RCV_BUFFER 0x0008
43#define CTL_FLUSH_XMT_BUFFER 0x0009
44#define CTL_GET_COMM_CMDS 0x000A
45
46/* MODE COMMAND CODES */
47#define MOD_PULSE_EN 0x0000
48#define MOD_SPEED_CHANGE_EN 0x0001
49#define MOD_1WIRE_SPEED 0x0002
50#define MOD_STRONG_PU_DURATION 0x0003
51#define MOD_PULLDOWN_SLEWRATE 0x0004
52#define MOD_PROG_PULSE_DURATION 0x0005
53#define MOD_WRITE1_LOWTIME 0x0006
54#define MOD_DSOW0_TREC 0x0007
55
56/* COMMUNICATION COMMAND CODES */
57#define COMM_ERROR_ESCAPE 0x0601
58#define COMM_SET_DURATION 0x0012
59#define COMM_BIT_IO 0x0020
60#define COMM_PULSE 0x0030
61#define COMM_1_WIRE_RESET 0x0042
62#define COMM_BYTE_IO 0x0052
63#define COMM_MATCH_ACCESS 0x0064
64#define COMM_BLOCK_IO 0x0074
65#define COMM_READ_STRAIGHT 0x0080
66#define COMM_DO_RELEASE 0x6092
67#define COMM_SET_PATH 0x00A2
68#define COMM_WRITE_SRAM_PAGE 0x00B2
69#define COMM_WRITE_EPROM 0x00C4
70#define COMM_READ_CRC_PROT_PAGE 0x00D4
71#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4
72#define COMM_SEARCH_ACCESS 0x00F4
73
74/* Communication command bits */
75#define COMM_TYPE 0x0008
76#define COMM_SE 0x0008
77#define COMM_D 0x0008
78#define COMM_Z 0x0008
79#define COMM_CH 0x0008
80#define COMM_SM 0x0008
81#define COMM_R 0x0008
82#define COMM_IM 0x0001
83
84#define COMM_PS 0x4000
85#define COMM_PST 0x4000
86#define COMM_CIB 0x4000
87#define COMM_RTS 0x4000
88#define COMM_DT 0x2000
89#define COMM_SPU 0x1000
90#define COMM_F 0x0800
91#define COMM_NTP 0x0400
92#define COMM_ICP 0x0200
93#define COMM_RST 0x0100
94
95#define PULSE_PROG 0x01
96#define PULSE_SPUE 0x02
97
98#define BRANCH_MAIN 0xCC
99#define BRANCH_AUX 0x33
100
101/*
102 * Duration of the strong pull-up pulse in milliseconds.
103 */
104#define PULLUP_PULSE_DURATION 750
105
106/* Status flags */
107#define ST_SPUA 0x01 /* Strong Pull-up is active */
108#define ST_PRGA 0x02 /* 12V programming pulse is being generated */
109#define ST_12VP 0x04 /* external 12V programming voltage is present */
110#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */
111#define ST_HALT 0x10 /* DS2490 is currently halted */
112#define ST_IDLE 0x20 /* DS2490 is currently idle */
113#define ST_EPOF 0x80
114
115#define SPEED_NORMAL 0x00
116#define SPEED_FLEXIBLE 0x01
117#define SPEED_OVERDRIVE 0x02
118
119#define NUM_EP 4
120#define EP_CONTROL 0
121#define EP_STATUS 1
122#define EP_DATA_OUT 2
123#define EP_DATA_IN 3
124
125struct ds_device
126{
127 struct list_head ds_entry;
128
129 struct usb_device *udev;
130 struct usb_interface *intf;
131
132 int ep[NUM_EP];
133
134 struct w1_bus_master master;
135};
136
137struct ds_status
138{
139 u8 enable;
140 u8 speed;
141 u8 pullup_dur;
142 u8 ppuls_dur;
143 u8 pulldown_slew;
144 u8 write1_time;
145 u8 write0_time;
146 u8 reserved0;
147 u8 status;
148 u8 command0;
149 u8 command1;
150 u8 command_buffer_status;
151 u8 data_out_buffer_status;
152 u8 data_in_buffer_status;
153 u8 reserved1;
154 u8 reserved2;
155
156};
28 157
29static struct usb_device_id ds_id_table [] = { 158static struct usb_device_id ds_id_table [] = {
30 { USB_DEVICE(0x04fa, 0x2490) }, 159 { USB_DEVICE(0x04fa, 0x2490) },
@@ -35,21 +164,12 @@ MODULE_DEVICE_TABLE(usb, ds_id_table);
35static int ds_probe(struct usb_interface *, const struct usb_device_id *); 164static int ds_probe(struct usb_interface *, const struct usb_device_id *);
36static void ds_disconnect(struct usb_interface *); 165static void ds_disconnect(struct usb_interface *);
37 166
38int ds_touch_bit(struct ds_device *, u8, u8 *);
39int ds_read_byte(struct ds_device *, u8 *);
40int ds_read_bit(struct ds_device *, u8 *);
41int ds_write_byte(struct ds_device *, u8);
42int ds_write_bit(struct ds_device *, u8);
43static int ds_start_pulse(struct ds_device *, int);
44int ds_reset(struct ds_device *, struct ds_status *);
45struct ds_device * ds_get_device(void);
46void ds_put_device(struct ds_device *);
47
48static inline void ds_dump_status(unsigned char *, unsigned char *, int); 167static inline void ds_dump_status(unsigned char *, unsigned char *, int);
49static int ds_send_control(struct ds_device *, u16, u16); 168static int ds_send_control(struct ds_device *, u16, u16);
50static int ds_send_control_mode(struct ds_device *, u16, u16);
51static int ds_send_control_cmd(struct ds_device *, u16, u16); 169static int ds_send_control_cmd(struct ds_device *, u16, u16);
52 170
171static LIST_HEAD(ds_devices);
172static DEFINE_MUTEX(ds_mutex);
53 173
54static struct usb_driver ds_driver = { 174static struct usb_driver ds_driver = {
55 .name = "DS9490R", 175 .name = "DS9490R",
@@ -58,20 +178,6 @@ static struct usb_driver ds_driver = {
58 .id_table = ds_id_table, 178 .id_table = ds_id_table,
59}; 179};
60 180
61static struct ds_device *ds_dev;
62
63struct ds_device * ds_get_device(void)
64{
65 if (ds_dev)
66 atomic_inc(&ds_dev->refcnt);
67 return ds_dev;
68}
69
70void ds_put_device(struct ds_device *dev)
71{
72 atomic_dec(&dev->refcnt);
73}
74
75static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index) 181static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index)
76{ 182{
77 int err; 183 int err;
@@ -86,7 +192,7 @@ static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index)
86 192
87 return err; 193 return err;
88} 194}
89 195#if 0
90static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index) 196static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index)
91{ 197{
92 int err; 198 int err;
@@ -101,7 +207,7 @@ static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index)
101 207
102 return err; 208 return err;
103} 209}
104 210#endif
105static int ds_send_control(struct ds_device *dev, u16 value, u16 index) 211static int ds_send_control(struct ds_device *dev, u16 value, u16 index)
106{ 212{
107 int err; 213 int err;
@@ -324,7 +430,7 @@ static int ds_wait_status(struct ds_device *dev, struct ds_status *st)
324 return 0; 430 return 0;
325} 431}
326 432
327int ds_reset(struct ds_device *dev, struct ds_status *st) 433static int ds_reset(struct ds_device *dev, struct ds_status *st)
328{ 434{
329 int err; 435 int err;
330 436
@@ -345,7 +451,7 @@ int ds_reset(struct ds_device *dev, struct ds_status *st)
345} 451}
346 452
347#if 0 453#if 0
348int ds_set_speed(struct ds_device *dev, int speed) 454static int ds_set_speed(struct ds_device *dev, int speed)
349{ 455{
350 int err; 456 int err;
351 457
@@ -395,7 +501,7 @@ static int ds_start_pulse(struct ds_device *dev, int delay)
395 return err; 501 return err;
396} 502}
397 503
398int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit) 504static int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit)
399{ 505{
400 int err, count; 506 int err, count;
401 struct ds_status st; 507 struct ds_status st;
@@ -427,7 +533,7 @@ int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit)
427 return 0; 533 return 0;
428} 534}
429 535
430int ds_write_bit(struct ds_device *dev, u8 bit) 536static int ds_write_bit(struct ds_device *dev, u8 bit)
431{ 537{
432 int err; 538 int err;
433 struct ds_status st; 539 struct ds_status st;
@@ -441,7 +547,7 @@ int ds_write_bit(struct ds_device *dev, u8 bit)
441 return 0; 547 return 0;
442} 548}
443 549
444int ds_write_byte(struct ds_device *dev, u8 byte) 550static int ds_write_byte(struct ds_device *dev, u8 byte)
445{ 551{
446 int err; 552 int err;
447 struct ds_status st; 553 struct ds_status st;
@@ -464,26 +570,7 @@ int ds_write_byte(struct ds_device *dev, u8 byte)
464 return !(byte == rbyte); 570 return !(byte == rbyte);
465} 571}
466 572
467int ds_read_bit(struct ds_device *dev, u8 *bit) 573static int ds_read_byte(struct ds_device *dev, u8 *byte)
468{
469 int err;
470
471 err = ds_send_control_mode(dev, MOD_PULSE_EN, PULSE_SPUE);
472 if (err)
473 return err;
474
475 err = ds_send_control(dev, COMM_BIT_IO | COMM_IM | COMM_SPU | COMM_D, 0);
476 if (err)
477 return err;
478
479 err = ds_recv_data(dev, bit, sizeof(*bit));
480 if (err < 0)
481 return err;
482
483 return 0;
484}
485
486int ds_read_byte(struct ds_device *dev, u8 *byte)
487{ 574{
488 int err; 575 int err;
489 struct ds_status st; 576 struct ds_status st;
@@ -501,7 +588,7 @@ int ds_read_byte(struct ds_device *dev, u8 *byte)
501 return 0; 588 return 0;
502} 589}
503 590
504int ds_read_block(struct ds_device *dev, u8 *buf, int len) 591static int ds_read_block(struct ds_device *dev, u8 *buf, int len)
505{ 592{
506 struct ds_status st; 593 struct ds_status st;
507 int err; 594 int err;
@@ -527,7 +614,7 @@ int ds_read_block(struct ds_device *dev, u8 *buf, int len)
527 return err; 614 return err;
528} 615}
529 616
530int ds_write_block(struct ds_device *dev, u8 *buf, int len) 617static int ds_write_block(struct ds_device *dev, u8 *buf, int len)
531{ 618{
532 int err; 619 int err;
533 struct ds_status st; 620 struct ds_status st;
@@ -555,7 +642,7 @@ int ds_write_block(struct ds_device *dev, u8 *buf, int len)
555 642
556#if 0 643#if 0
557 644
558int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search) 645static int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search)
559{ 646{
560 int err; 647 int err;
561 u16 value, index; 648 u16 value, index;
@@ -584,7 +671,7 @@ int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int condi
584 return err/8; 671 return err/8;
585} 672}
586 673
587int ds_match_access(struct ds_device *dev, u64 init) 674static int ds_match_access(struct ds_device *dev, u64 init)
588{ 675{
589 int err; 676 int err;
590 struct ds_status st; 677 struct ds_status st;
@@ -604,7 +691,7 @@ int ds_match_access(struct ds_device *dev, u64 init)
604 return 0; 691 return 0;
605} 692}
606 693
607int ds_set_path(struct ds_device *dev, u64 init) 694static int ds_set_path(struct ds_device *dev, u64 init)
608{ 695{
609 int err; 696 int err;
610 struct ds_status st; 697 struct ds_status st;
@@ -630,45 +717,156 @@ int ds_set_path(struct ds_device *dev, u64 init)
630 717
631#endif /* 0 */ 718#endif /* 0 */
632 719
720static u8 ds9490r_touch_bit(void *data, u8 bit)
721{
722 u8 ret;
723 struct ds_device *dev = data;
724
725 if (ds_touch_bit(dev, bit, &ret))
726 return 0;
727
728 return ret;
729}
730
731static void ds9490r_write_bit(void *data, u8 bit)
732{
733 struct ds_device *dev = data;
734
735 ds_write_bit(dev, bit);
736}
737
738static void ds9490r_write_byte(void *data, u8 byte)
739{
740 struct ds_device *dev = data;
741
742 ds_write_byte(dev, byte);
743}
744
745static u8 ds9490r_read_bit(void *data)
746{
747 struct ds_device *dev = data;
748 int err;
749 u8 bit = 0;
750
751 err = ds_touch_bit(dev, 1, &bit);
752 if (err)
753 return 0;
754
755 return bit & 1;
756}
757
758static u8 ds9490r_read_byte(void *data)
759{
760 struct ds_device *dev = data;
761 int err;
762 u8 byte = 0;
763
764 err = ds_read_byte(dev, &byte);
765 if (err)
766 return 0;
767
768 return byte;
769}
770
771static void ds9490r_write_block(void *data, const u8 *buf, int len)
772{
773 struct ds_device *dev = data;
774
775 ds_write_block(dev, (u8 *)buf, len);
776}
777
778static u8 ds9490r_read_block(void *data, u8 *buf, int len)
779{
780 struct ds_device *dev = data;
781 int err;
782
783 err = ds_read_block(dev, buf, len);
784 if (err < 0)
785 return 0;
786
787 return len;
788}
789
790static u8 ds9490r_reset(void *data)
791{
792 struct ds_device *dev = data;
793 struct ds_status st;
794 int err;
795
796 memset(&st, 0, sizeof(st));
797
798 err = ds_reset(dev, &st);
799 if (err)
800 return 1;
801
802 return 0;
803}
804
805static int ds_w1_init(struct ds_device *dev)
806{
807 memset(&dev->master, 0, sizeof(struct w1_bus_master));
808
809 dev->master.data = dev;
810 dev->master.touch_bit = &ds9490r_touch_bit;
811 dev->master.read_bit = &ds9490r_read_bit;
812 dev->master.write_bit = &ds9490r_write_bit;
813 dev->master.read_byte = &ds9490r_read_byte;
814 dev->master.write_byte = &ds9490r_write_byte;
815 dev->master.read_block = &ds9490r_read_block;
816 dev->master.write_block = &ds9490r_write_block;
817 dev->master.reset_bus = &ds9490r_reset;
818
819 return w1_add_master_device(&dev->master);
820}
821
822static void ds_w1_fini(struct ds_device *dev)
823{
824 w1_remove_master_device(&dev->master);
825}
826
633static int ds_probe(struct usb_interface *intf, 827static int ds_probe(struct usb_interface *intf,
634 const struct usb_device_id *udev_id) 828 const struct usb_device_id *udev_id)
635{ 829{
636 struct usb_device *udev = interface_to_usbdev(intf); 830 struct usb_device *udev = interface_to_usbdev(intf);
637 struct usb_endpoint_descriptor *endpoint; 831 struct usb_endpoint_descriptor *endpoint;
638 struct usb_host_interface *iface_desc; 832 struct usb_host_interface *iface_desc;
833 struct ds_device *dev;
639 int i, err; 834 int i, err;
640 835
641 ds_dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL); 836 dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL);
642 if (!ds_dev) { 837 if (!dev) {
643 printk(KERN_INFO "Failed to allocate new DS9490R structure.\n"); 838 printk(KERN_INFO "Failed to allocate new DS9490R structure.\n");
644 return -ENOMEM; 839 return -ENOMEM;
645 } 840 }
841 dev->udev = usb_get_dev(udev);
842 if (!dev->udev) {
843 err = -ENOMEM;
844 goto err_out_free;
845 }
846 memset(dev->ep, 0, sizeof(dev->ep));
646 847
647 ds_dev->udev = usb_get_dev(udev); 848 usb_set_intfdata(intf, dev);
648 usb_set_intfdata(intf, ds_dev);
649 849
650 err = usb_set_interface(ds_dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3); 850 err = usb_set_interface(dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3);
651 if (err) { 851 if (err) {
652 printk(KERN_ERR "Failed to set alternative setting 3 for %d interface: err=%d.\n", 852 printk(KERN_ERR "Failed to set alternative setting 3 for %d interface: err=%d.\n",
653 intf->altsetting[0].desc.bInterfaceNumber, err); 853 intf->altsetting[0].desc.bInterfaceNumber, err);
654 return err; 854 goto err_out_clear;
655 } 855 }
656 856
657 err = usb_reset_configuration(ds_dev->udev); 857 err = usb_reset_configuration(dev->udev);
658 if (err) { 858 if (err) {
659 printk(KERN_ERR "Failed to reset configuration: err=%d.\n", err); 859 printk(KERN_ERR "Failed to reset configuration: err=%d.\n", err);
660 return err; 860 goto err_out_clear;
661 } 861 }
662 862
663 iface_desc = &intf->altsetting[0]; 863 iface_desc = &intf->altsetting[0];
664 if (iface_desc->desc.bNumEndpoints != NUM_EP-1) { 864 if (iface_desc->desc.bNumEndpoints != NUM_EP-1) {
665 printk(KERN_INFO "Num endpoints=%d. It is not DS9490R.\n", iface_desc->desc.bNumEndpoints); 865 printk(KERN_INFO "Num endpoints=%d. It is not DS9490R.\n", iface_desc->desc.bNumEndpoints);
666 return -ENODEV; 866 err = -EINVAL;
867 goto err_out_clear;
667 } 868 }
668 869
669 atomic_set(&ds_dev->refcnt, 0);
670 memset(ds_dev->ep, 0, sizeof(ds_dev->ep));
671
672 /* 870 /*
673 * This loop doesn'd show control 0 endpoint, 871 * This loop doesn'd show control 0 endpoint,
674 * so we will fill only 1-3 endpoints entry. 872 * so we will fill only 1-3 endpoints entry.
@@ -676,54 +874,31 @@ static int ds_probe(struct usb_interface *intf,
676 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 874 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
677 endpoint = &iface_desc->endpoint[i].desc; 875 endpoint = &iface_desc->endpoint[i].desc;
678 876
679 ds_dev->ep[i+1] = endpoint->bEndpointAddress; 877 dev->ep[i+1] = endpoint->bEndpointAddress;
680 878#if 0
681 printk("%d: addr=%x, size=%d, dir=%s, type=%x\n", 879 printk("%d: addr=%x, size=%d, dir=%s, type=%x\n",
682 i, endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize), 880 i, endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize),
683 (endpoint->bEndpointAddress & USB_DIR_IN)?"IN":"OUT", 881 (endpoint->bEndpointAddress & USB_DIR_IN)?"IN":"OUT",
684 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); 882 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
883#endif
685 } 884 }
686 885
687#if 0 886 err = ds_w1_init(dev);
688 { 887 if (err)
689 int err, i; 888 goto err_out_clear;
690 u64 buf[3];
691 u64 init=0xb30000002078ee81ull;
692 struct ds_status st;
693
694 ds_reset(ds_dev, &st);
695 err = ds_search(ds_dev, init, buf, 3, 0);
696 if (err < 0)
697 return err;
698 for (i=0; i<err; ++i)
699 printk("%d: %llx\n", i, buf[i]);
700
701 printk("Resetting...\n");
702 ds_reset(ds_dev, &st);
703 printk("Setting path for %llx.\n", init);
704 err = ds_set_path(ds_dev, init);
705 if (err)
706 return err;
707 printk("Calling MATCH_ACCESS.\n");
708 err = ds_match_access(ds_dev, init);
709 if (err)
710 return err;
711
712 printk("Searching the bus...\n");
713 err = ds_search(ds_dev, init, buf, 3, 0);
714
715 printk("ds_search() returned %d\n", err);
716
717 if (err < 0)
718 return err;
719 for (i=0; i<err; ++i)
720 printk("%d: %llx\n", i, buf[i]);
721 889
722 return 0; 890 mutex_lock(&ds_mutex);
723 } 891 list_add_tail(&dev->ds_entry, &ds_devices);
724#endif 892 mutex_unlock(&ds_mutex);
725 893
726 return 0; 894 return 0;
895
896err_out_clear:
897 usb_set_intfdata(intf, NULL);
898 usb_put_dev(dev->udev);
899err_out_free:
900 kfree(dev);
901 return err;
727} 902}
728 903
729static void ds_disconnect(struct usb_interface *intf) 904static void ds_disconnect(struct usb_interface *intf)
@@ -731,19 +906,19 @@ static void ds_disconnect(struct usb_interface *intf)
731 struct ds_device *dev; 906 struct ds_device *dev;
732 907
733 dev = usb_get_intfdata(intf); 908 dev = usb_get_intfdata(intf);
734 usb_set_intfdata(intf, NULL); 909 if (!dev)
910 return;
735 911
736 while (atomic_read(&dev->refcnt)) { 912 mutex_lock(&ds_mutex);
737 printk(KERN_INFO "Waiting for DS to become free: refcnt=%d.\n", 913 list_del(&dev->ds_entry);
738 atomic_read(&dev->refcnt)); 914 mutex_unlock(&ds_mutex);
739 915
740 if (msleep_interruptible(1000)) 916 ds_w1_fini(dev);
741 flush_signals(current); 917
742 } 918 usb_set_intfdata(intf, NULL);
743 919
744 usb_put_dev(dev->udev); 920 usb_put_dev(dev->udev);
745 kfree(dev); 921 kfree(dev);
746 ds_dev = NULL;
747} 922}
748 923
749static int ds_init(void) 924static int ds_init(void)
@@ -769,27 +944,4 @@ module_exit(ds_fini);
769 944
770MODULE_LICENSE("GPL"); 945MODULE_LICENSE("GPL");
771MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>"); 946MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
772 947MODULE_DESCRIPTION("DS2490 USB <-> W1 bus master driver (DS9490*)");
773EXPORT_SYMBOL(ds_touch_bit);
774EXPORT_SYMBOL(ds_read_byte);
775EXPORT_SYMBOL(ds_read_bit);
776EXPORT_SYMBOL(ds_read_block);
777EXPORT_SYMBOL(ds_write_byte);
778EXPORT_SYMBOL(ds_write_bit);
779EXPORT_SYMBOL(ds_write_block);
780EXPORT_SYMBOL(ds_reset);
781EXPORT_SYMBOL(ds_get_device);
782EXPORT_SYMBOL(ds_put_device);
783
784/*
785 * This functions can be used for EEPROM programming,
786 * when driver will be included into mainline this will
787 * require uncommenting.
788 */
789#if 0
790EXPORT_SYMBOL(ds_start_pulse);
791EXPORT_SYMBOL(ds_set_speed);
792EXPORT_SYMBOL(ds_detect);
793EXPORT_SYMBOL(ds_stop_pulse);
794EXPORT_SYMBOL(ds_search);
795#endif
diff --git a/drivers/w1/masters/ds_w1_bridge.c b/drivers/w1/masters/ds_w1_bridge.c
deleted file mode 100644
index 5d30783a3eb6..000000000000
--- a/drivers/w1/masters/ds_w1_bridge.c
+++ /dev/null
@@ -1,174 +0,0 @@
1/*
2 * ds_w1_bridge.c
3 *
4 * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <linux/module.h>
23#include <linux/types.h>
24
25#include "../w1.h"
26#include "../w1_int.h"
27#include "dscore.h"
28
29static struct ds_device *ds_dev;
30static struct w1_bus_master *ds_bus_master;
31
32static u8 ds9490r_touch_bit(void *data, u8 bit)
33{
34 u8 ret;
35 struct ds_device *dev = data;
36
37 if (ds_touch_bit(dev, bit, &ret))
38 return 0;
39
40 return ret;
41}
42
43static void ds9490r_write_bit(void *data, u8 bit)
44{
45 struct ds_device *dev = data;
46
47 ds_write_bit(dev, bit);
48}
49
50static void ds9490r_write_byte(void *data, u8 byte)
51{
52 struct ds_device *dev = data;
53
54 ds_write_byte(dev, byte);
55}
56
57static u8 ds9490r_read_bit(void *data)
58{
59 struct ds_device *dev = data;
60 int err;
61 u8 bit = 0;
62
63 err = ds_touch_bit(dev, 1, &bit);
64 if (err)
65 return 0;
66 //err = ds_read_bit(dev, &bit);
67 //if (err)
68 // return 0;
69
70 return bit & 1;
71}
72
73static u8 ds9490r_read_byte(void *data)
74{
75 struct ds_device *dev = data;
76 int err;
77 u8 byte = 0;
78
79 err = ds_read_byte(dev, &byte);
80 if (err)
81 return 0;
82
83 return byte;
84}
85
86static void ds9490r_write_block(void *data, const u8 *buf, int len)
87{
88 struct ds_device *dev = data;
89
90 ds_write_block(dev, (u8 *)buf, len);
91}
92
93static u8 ds9490r_read_block(void *data, u8 *buf, int len)
94{
95 struct ds_device *dev = data;
96 int err;
97
98 err = ds_read_block(dev, buf, len);
99 if (err < 0)
100 return 0;
101
102 return len;
103}
104
105static u8 ds9490r_reset(void *data)
106{
107 struct ds_device *dev = data;
108 struct ds_status st;
109 int err;
110
111 memset(&st, 0, sizeof(st));
112
113 err = ds_reset(dev, &st);
114 if (err)
115 return 1;
116
117 return 0;
118}
119
120static int __devinit ds_w1_init(void)
121{
122 int err;
123
124 ds_bus_master = kmalloc(sizeof(*ds_bus_master), GFP_KERNEL);
125 if (!ds_bus_master) {
126 printk(KERN_ERR "Failed to allocate DS9490R USB<->W1 bus_master structure.\n");
127 return -ENOMEM;
128 }
129
130 ds_dev = ds_get_device();
131 if (!ds_dev) {
132 printk(KERN_ERR "DS9490R is not registered.\n");
133 err = -ENODEV;
134 goto err_out_free_bus_master;
135 }
136
137 memset(ds_bus_master, 0, sizeof(*ds_bus_master));
138
139 ds_bus_master->data = ds_dev;
140 ds_bus_master->touch_bit = &ds9490r_touch_bit;
141 ds_bus_master->read_bit = &ds9490r_read_bit;
142 ds_bus_master->write_bit = &ds9490r_write_bit;
143 ds_bus_master->read_byte = &ds9490r_read_byte;
144 ds_bus_master->write_byte = &ds9490r_write_byte;
145 ds_bus_master->read_block = &ds9490r_read_block;
146 ds_bus_master->write_block = &ds9490r_write_block;
147 ds_bus_master->reset_bus = &ds9490r_reset;
148
149 err = w1_add_master_device(ds_bus_master);
150 if (err)
151 goto err_out_put_device;
152
153 return 0;
154
155err_out_put_device:
156 ds_put_device(ds_dev);
157err_out_free_bus_master:
158 kfree(ds_bus_master);
159
160 return err;
161}
162
163static void __devexit ds_w1_fini(void)
164{
165 w1_remove_master_device(ds_bus_master);
166 ds_put_device(ds_dev);
167 kfree(ds_bus_master);
168}
169
170module_init(ds_w1_init);
171module_exit(ds_w1_fini);
172
173MODULE_LICENSE("GPL");
174MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
diff --git a/drivers/w1/masters/dscore.h b/drivers/w1/masters/dscore.h
deleted file mode 100644
index 6cf5671d6ebe..000000000000
--- a/drivers/w1/masters/dscore.h
+++ /dev/null
@@ -1,166 +0,0 @@
1/*
2 * dscore.h
3 *
4 * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef __DSCORE_H
23#define __DSCORE_H
24
25#include <linux/usb.h>
26#include <asm/atomic.h>
27
28/* COMMAND TYPE CODES */
29#define CONTROL_CMD 0x00
30#define COMM_CMD 0x01
31#define MODE_CMD 0x02
32
33/* CONTROL COMMAND CODES */
34#define CTL_RESET_DEVICE 0x0000
35#define CTL_START_EXE 0x0001
36#define CTL_RESUME_EXE 0x0002
37#define CTL_HALT_EXE_IDLE 0x0003
38#define CTL_HALT_EXE_DONE 0x0004
39#define CTL_FLUSH_COMM_CMDS 0x0007
40#define CTL_FLUSH_RCV_BUFFER 0x0008
41#define CTL_FLUSH_XMT_BUFFER 0x0009
42#define CTL_GET_COMM_CMDS 0x000A
43
44/* MODE COMMAND CODES */
45#define MOD_PULSE_EN 0x0000
46#define MOD_SPEED_CHANGE_EN 0x0001
47#define MOD_1WIRE_SPEED 0x0002
48#define MOD_STRONG_PU_DURATION 0x0003
49#define MOD_PULLDOWN_SLEWRATE 0x0004
50#define MOD_PROG_PULSE_DURATION 0x0005
51#define MOD_WRITE1_LOWTIME 0x0006
52#define MOD_DSOW0_TREC 0x0007
53
54/* COMMUNICATION COMMAND CODES */
55#define COMM_ERROR_ESCAPE 0x0601
56#define COMM_SET_DURATION 0x0012
57#define COMM_BIT_IO 0x0020
58#define COMM_PULSE 0x0030
59#define COMM_1_WIRE_RESET 0x0042
60#define COMM_BYTE_IO 0x0052
61#define COMM_MATCH_ACCESS 0x0064
62#define COMM_BLOCK_IO 0x0074
63#define COMM_READ_STRAIGHT 0x0080
64#define COMM_DO_RELEASE 0x6092
65#define COMM_SET_PATH 0x00A2
66#define COMM_WRITE_SRAM_PAGE 0x00B2
67#define COMM_WRITE_EPROM 0x00C4
68#define COMM_READ_CRC_PROT_PAGE 0x00D4
69#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4
70#define COMM_SEARCH_ACCESS 0x00F4
71
72/* Communication command bits */
73#define COMM_TYPE 0x0008
74#define COMM_SE 0x0008
75#define COMM_D 0x0008
76#define COMM_Z 0x0008
77#define COMM_CH 0x0008
78#define COMM_SM 0x0008
79#define COMM_R 0x0008
80#define COMM_IM 0x0001
81
82#define COMM_PS 0x4000
83#define COMM_PST 0x4000
84#define COMM_CIB 0x4000
85#define COMM_RTS 0x4000
86#define COMM_DT 0x2000
87#define COMM_SPU 0x1000
88#define COMM_F 0x0800
89#define COMM_NTP 0x0400
90#define COMM_ICP 0x0200
91#define COMM_RST 0x0100
92
93#define PULSE_PROG 0x01
94#define PULSE_SPUE 0x02
95
96#define BRANCH_MAIN 0xCC
97#define BRANCH_AUX 0x33
98
99/*
100 * Duration of the strong pull-up pulse in milliseconds.
101 */
102#define PULLUP_PULSE_DURATION 750
103
104/* Status flags */
105#define ST_SPUA 0x01 /* Strong Pull-up is active */
106#define ST_PRGA 0x02 /* 12V programming pulse is being generated */
107#define ST_12VP 0x04 /* external 12V programming voltage is present */
108#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */
109#define ST_HALT 0x10 /* DS2490 is currently halted */
110#define ST_IDLE 0x20 /* DS2490 is currently idle */
111#define ST_EPOF 0x80
112
113#define SPEED_NORMAL 0x00
114#define SPEED_FLEXIBLE 0x01
115#define SPEED_OVERDRIVE 0x02
116
117#define NUM_EP 4
118#define EP_CONTROL 0
119#define EP_STATUS 1
120#define EP_DATA_OUT 2
121#define EP_DATA_IN 3
122
123struct ds_device
124{
125 struct usb_device *udev;
126 struct usb_interface *intf;
127
128 int ep[NUM_EP];
129
130 atomic_t refcnt;
131};
132
133struct ds_status
134{
135 u8 enable;
136 u8 speed;
137 u8 pullup_dur;
138 u8 ppuls_dur;
139 u8 pulldown_slew;
140 u8 write1_time;
141 u8 write0_time;
142 u8 reserved0;
143 u8 status;
144 u8 command0;
145 u8 command1;
146 u8 command_buffer_status;
147 u8 data_out_buffer_status;
148 u8 data_in_buffer_status;
149 u8 reserved1;
150 u8 reserved2;
151
152};
153
154int ds_touch_bit(struct ds_device *, u8, u8 *);
155int ds_read_byte(struct ds_device *, u8 *);
156int ds_read_bit(struct ds_device *, u8 *);
157int ds_write_byte(struct ds_device *, u8);
158int ds_write_bit(struct ds_device *, u8);
159int ds_reset(struct ds_device *, struct ds_status *);
160struct ds_device * ds_get_device(void);
161void ds_put_device(struct ds_device *);
162int ds_write_block(struct ds_device *, u8 *, int);
163int ds_read_block(struct ds_device *, u8 *, int);
164
165#endif /* __DSCORE_H */
166
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-14 00:53:43 -0500