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-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
This support is also available as a module. If so, the module
will be called matrox_w1.ko.
-config W1_MASTER_DS9490
- tristate "DS9490R transport layer driver"
- depends on W1 && USB
- help
- Say Y here if you want to have a driver for DS9490R UWB <-> W1 bridge.
-
- This support is also available as a module. If so, the module
- will be called ds9490r.ko.
-
-config W1_MASTER_DS9490_BRIDGE
- tristate "DS9490R USB <-> W1 transport layer for 1-wire"
- depends on W1_MASTER_DS9490
- help
- Say Y here if you want to communicate with your 1-wire devices
- using DS9490R USB bridge.
-
- This support is also available as a module. If so, the module
- will be called ds_w1_bridge.ko.
+config W1_MASTER_DS2490
+ tristate "DS2490 USB <-> W1 transport layer for 1-wire"
+ depends on W1 && USB
+ help
+ Say Y here if you want to have a driver for DS2490 based USB <-> W1 bridges,
+ for example DS9490*.
+
+ This support is also available as a module. If so, the module
+ will be called ds2490.ko.
config W1_MASTER_DS2482
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 @@
#
obj-$(CONFIG_W1_MASTER_MATROX) += matrox_w1.o
-
-obj-$(CONFIG_W1_MASTER_DS9490) += ds9490r.o
-ds9490r-objs := dscore.o
-
-obj-$(CONFIG_W1_MASTER_DS9490_BRIDGE) += ds_w1_bridge.o
-
+obj-$(CONFIG_W1_MASTER_DS2490) += ds2490.o
obj-$(CONFIG_W1_MASTER_DS2482) += ds2482.o
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 {
struct ds2482_data {
struct i2c_client client;
- struct semaphore access_lock;
+ struct mutex access_lock;
/* 1-wire interface(s) */
int w1_count; /* 1 or 8 */
@@ -265,7 +265,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
struct ds2482_data *pdev = pchan->pdev;
int status = -1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -277,7 +277,7 @@ static u8 ds2482_w1_touch_bit(void *data, u8 bit)
bit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return (status & DS2482_REG_STS_SBR) ? 1 : 0;
}
@@ -297,7 +297,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
struct ds2482_data *pdev = pchan->pdev;
int status = (3 << 5);
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -309,7 +309,7 @@ static u8 ds2482_w1_triplet(void *data, u8 dbit)
dbit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
/* Decode the status */
return (status >> 5);
@@ -326,7 +326,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
struct ds2482_w1_chan *pchan = data;
struct ds2482_data *pdev = pchan->pdev;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -336,7 +336,7 @@ static void ds2482_w1_write_byte(void *data, u8 byte)
/* Send the write byte command */
ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
}
/**
@@ -351,7 +351,7 @@ static u8 ds2482_w1_read_byte(void *data)
struct ds2482_data *pdev = pchan->pdev;
int result;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -370,7 +370,7 @@ static u8 ds2482_w1_read_byte(void *data)
/* Read the data byte */
result = i2c_smbus_read_byte(&pdev->client);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return result;
}
@@ -389,7 +389,7 @@ static u8 ds2482_w1_reset_bus(void *data)
int err;
u8 retval = 1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
@@ -409,7 +409,7 @@ static u8 ds2482_w1_reset_bus(void *data)
0xF0);
}
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return retval;
}
@@ -482,7 +482,7 @@ static int ds2482_detect(struct i2c_adapter *adapter, int address, int kind)
snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00",
data->w1_count);
- init_MUTEX(&data->access_lock);
+ mutex_init(&data->access_lock);
/* Tell the I2C layer a new client has arrived */
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 @@
#include <linux/mod_devicetable.h>
#include <linux/usb.h>
-#include "dscore.h"
+#include "../w1_int.h"
+#include "../w1.h"
+
+/* COMMAND TYPE CODES */
+#define CONTROL_CMD 0x00
+#define COMM_CMD 0x01
+#define MODE_CMD 0x02
+
+/* CONTROL COMMAND CODES */
+#define CTL_RESET_DEVICE 0x0000
+#define CTL_START_EXE 0x0001
+#define CTL_RESUME_EXE 0x0002
+#define CTL_HALT_EXE_IDLE 0x0003
+#define CTL_HALT_EXE_DONE 0x0004
+#define CTL_FLUSH_COMM_CMDS 0x0007
+#define CTL_FLUSH_RCV_BUFFER 0x0008
+#define CTL_FLUSH_XMT_BUFFER 0x0009
+#define CTL_GET_COMM_CMDS 0x000A
+
+/* MODE COMMAND CODES */
+#define MOD_PULSE_EN 0x0000
+#define MOD_SPEED_CHANGE_EN 0x0001
+#define MOD_1WIRE_SPEED 0x0002
+#define MOD_STRONG_PU_DURATION 0x0003
+#define MOD_PULLDOWN_SLEWRATE 0x0004
+#define MOD_PROG_PULSE_DURATION 0x0005
+#define MOD_WRITE1_LOWTIME 0x0006
+#define MOD_DSOW0_TREC 0x0007
+
+/* COMMUNICATION COMMAND CODES */
+#define COMM_ERROR_ESCAPE 0x0601
+#define COMM_SET_DURATION 0x0012
+#define COMM_BIT_IO 0x0020
+#define COMM_PULSE 0x0030
+#define COMM_1_WIRE_RESET 0x0042
+#define COMM_BYTE_IO 0x0052
+#define COMM_MATCH_ACCESS 0x0064
+#define COMM_BLOCK_IO 0x0074
+#define COMM_READ_STRAIGHT 0x0080
+#define COMM_DO_RELEASE 0x6092
+#define COMM_SET_PATH 0x00A2
+#define COMM_WRITE_SRAM_PAGE 0x00B2
+#define COMM_WRITE_EPROM 0x00C4
+#define COMM_READ_CRC_PROT_PAGE 0x00D4
+#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4
+#define COMM_SEARCH_ACCESS 0x00F4
+
+/* Communication command bits */
+#define COMM_TYPE 0x0008
+#define COMM_SE 0x0008
+#define COMM_D 0x0008
+#define COMM_Z 0x0008
+#define COMM_CH 0x0008
+#define COMM_SM 0x0008
+#define COMM_R 0x0008
+#define COMM_IM 0x0001
+
+#define COMM_PS 0x4000
+#define COMM_PST 0x4000
+#define COMM_CIB 0x4000
+#define COMM_RTS 0x4000
+#define COMM_DT 0x2000
+#define COMM_SPU 0x1000
+#define COMM_F 0x0800
+#define COMM_NTP 0x0400
+#define COMM_ICP 0x0200
+#define COMM_RST 0x0100
+
+#define PULSE_PROG 0x01
+#define PULSE_SPUE 0x02
+
+#define BRANCH_MAIN 0xCC
+#define BRANCH_AUX 0x33
+
+/*
+ * Duration of the strong pull-up pulse in milliseconds.
+ */
+#define PULLUP_PULSE_DURATION 750
+
+/* Status flags */
+#define ST_SPUA 0x01 /* Strong Pull-up is active */
+#define ST_PRGA 0x02 /* 12V programming pulse is being generated */
+#define ST_12VP 0x04 /* external 12V programming voltage is present */
+#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */
+#define ST_HALT 0x10 /* DS2490 is currently halted */
+#define ST_IDLE 0x20 /* DS2490 is currently idle */
+#define ST_EPOF 0x80
+
+#define SPEED_NORMAL 0x00
+#define SPEED_FLEXIBLE 0x01
+#define SPEED_OVERDRIVE 0x02
+
+#define NUM_EP 4
+#define EP_CONTROL 0
+#define EP_STATUS 1
+#define EP_DATA_OUT 2
+#define EP_DATA_IN 3
+
+struct ds_device
+{
+ struct list_head ds_entry;
+
+ struct usb_device *udev;
+ struct usb_interface *intf;
+
+ int ep[NUM_EP];
+
+ struct w1_bus_master master;
+};
+
+struct ds_status
+{
+ u8 enable;
+ u8 speed;
+ u8 pullup_dur;
+ u8 ppuls_dur;
+ u8 pulldown_slew;
+ u8 write1_time;
+ u8 write0_time;
+ u8 reserved0;
+ u8 status;
+ u8 command0;
+ u8 command1;
+ u8 command_buffer_status;
+ u8 data_out_buffer_status;
+ u8 data_in_buffer_status;
+ u8 reserved1;
+ u8 reserved2;
+
+};
static struct usb_device_id ds_id_table [] = {
{ USB_DEVICE(0x04fa, 0x2490) },
@@ -35,21 +164,12 @@ MODULE_DEVICE_TABLE(usb, ds_id_table);
static int ds_probe(struct usb_interface *, const struct usb_device_id *);
static void ds_disconnect(struct usb_interface *);
-int ds_touch_bit(struct ds_device *, u8, u8 *);
-int ds_read_byte(struct ds_device *, u8 *);
-int ds_read_bit(struct ds_device *, u8 *);
-int ds_write_byte(struct ds_device *, u8);
-int ds_write_bit(struct ds_device *, u8);
-static int ds_start_pulse(struct ds_device *, int);
-int ds_reset(struct ds_device *, struct ds_status *);
-struct ds_device * ds_get_device(void);
-void ds_put_device(struct ds_device *);
-
static inline void ds_dump_status(unsigned char *, unsigned char *, int);
static int ds_send_control(struct ds_device *, u16, u16);
-static int ds_send_control_mode(struct ds_device *, u16, u16);
static int ds_send_control_cmd(struct ds_device *, u16, u16);
+static LIST_HEAD(ds_devices);
+static DEFINE_MUTEX(ds_mutex);
static struct usb_driver ds_driver = {
.name = "DS9490R",
@@ -58,20 +178,6 @@ static struct usb_driver ds_driver = {
.id_table = ds_id_table,
};
-static struct ds_device *ds_dev;
-
-struct ds_device * ds_get_device(void)
-{
- if (ds_dev)
- atomic_inc(&ds_dev->refcnt);
- return ds_dev;
-}
-
-void ds_put_device(struct ds_device *dev)
-{
- atomic_dec(&dev->refcnt);
-}
-
static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index)
{
int err;
@@ -86,7 +192,7 @@ static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index)
return err;
}
-
+#if 0
static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index)
{
int err;
@@ -101,7 +207,7 @@ static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index)
return err;
}
-
+#endif
static int ds_send_control(struct ds_device *dev, u16 value, u16 index)
{
int err;
@@ -324,7 +430,7 @@ static int ds_wait_status(struct ds_device *dev, struct ds_status *st)
return 0;
}
-int ds_reset(struct ds_device *dev, struct ds_status *st)
+static int ds_reset(struct ds_device *dev, struct ds_status *st)
{
int err;
@@ -345,7 +451,7 @@ int ds_reset(struct ds_device *dev, struct ds_status *st)
}
#if 0
-int ds_set_speed(struct ds_device *dev, int speed)
+static int ds_set_speed(struct ds_device *dev, int speed)
{
int err;
@@ -395,7 +501,7 @@ static int ds_start_pulse(struct ds_device *dev, int delay)
return err;
}
-int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit)
+static int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit)
{
int err, count;
struct ds_status st;
@@ -427,7 +533,7 @@ int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit)
return 0;
}
-int ds_write_bit(struct ds_device *dev, u8 bit)
+static int ds_write_bit(struct ds_device *dev, u8 bit)
{
int err;
struct ds_status st;
@@ -441,7 +547,7 @@ int ds_write_bit(struct ds_device *dev, u8 bit)
return 0;
}
-int ds_write_byte(struct ds_device *dev, u8 byte)
+static int ds_write_byte(struct ds_device *dev, u8 byte)
{
int err;
struct ds_status st;
@@ -464,26 +570,7 @@ int ds_write_byte(struct ds_device *dev, u8 byte)
return !(byte == rbyte);
}
-int ds_read_bit(struct ds_device *dev, u8 *bit)
-{
- int err;
-
- err = ds_send_control_mode(dev, MOD_PULSE_EN, PULSE_SPUE);
- if (err)
- return err;
-
- err = ds_send_control(dev, COMM_BIT_IO | COMM_IM | COMM_SPU | COMM_D, 0);
- if (err)
- return err;
-
- err = ds_recv_data(dev, bit, sizeof(*bit));
- if (err < 0)
- return err;
-
- return 0;
-}
-
-int ds_read_byte(struct ds_device *dev, u8 *byte)
+static int ds_read_byte(struct ds_device *dev, u8 *byte)
{
int err;
struct ds_status st;
@@ -501,7 +588,7 @@ int ds_read_byte(struct ds_device *dev, u8 *byte)
return 0;
}
-int ds_read_block(struct ds_device *dev, u8 *buf, int len)
+static int ds_read_block(struct ds_device *dev, u8 *buf, int len)
{
struct ds_status st;
int err;
@@ -527,7 +614,7 @@ int ds_read_block(struct ds_device *dev, u8 *buf, int len)
return err;
}
-int ds_write_block(struct ds_device *dev, u8 *buf, int len)
+static int ds_write_block(struct ds_device *dev, u8 *buf, int len)
{
int err;
struct ds_status st;
@@ -555,7 +642,7 @@ int ds_write_block(struct ds_device *dev, u8 *buf, int len)
#if 0
-int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search)
+static int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search)
{
int err;
u16 value, index;
@@ -584,7 +671,7 @@ int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int condi
return err/8;
}
-int ds_match_access(struct ds_device *dev, u64 init)
+static int ds_match_access(struct ds_device *dev, u64 init)
{
int err;
struct ds_status st;
@@ -604,7 +691,7 @@ int ds_match_access(struct ds_device *dev, u64 init)
return 0;
}
-int ds_set_path(struct ds_device *dev, u64 init)
+static int ds_set_path(struct ds_device *dev, u64 init)
{
int err;
struct ds_status st;
@@ -630,45 +717,156 @@ int ds_set_path(struct ds_device *dev, u64 init)
#endif /* 0 */
+static u8 ds9490r_touch_bit(void *data, u8 bit)
+{
+ u8 ret;
+ struct ds_device *dev = data;
+
+ if (ds_touch_bit(dev, bit, &ret))
+ return 0;
+
+ return ret;
+}
+
+static void ds9490r_write_bit(void *data, u8 bit)
+{
+ struct ds_device *dev = data;
+
+ ds_write_bit(dev, bit);
+}
+
+static void ds9490r_write_byte(void *data, u8 byte)
+{
+ struct ds_device *dev = data;
+
+ ds_write_byte(dev, byte);
+}
+
+static u8 ds9490r_read_bit(void *data)
+{
+ struct ds_device *dev = data;
+ int err;
+ u8 bit = 0;
+
+ err = ds_touch_bit(dev, 1, &bit);
+ if (err)
+ return 0;
+
+ return bit & 1;
+}
+
+static u8 ds9490r_read_byte(void *data)
+{
+ struct ds_device *dev = data;
+ int err;
+ u8 byte = 0;
+
+ err = ds_read_byte(dev, &byte);
+ if (err)
+ return 0;
+
+ return byte;
+}
+
+static void ds9490r_write_block(void *data, const u8 *buf, int len)
+{
+ struct ds_device *dev = data;
+
+ ds_write_block(dev, (u8 *)buf, len);
+}
+
+static u8 ds9490r_read_block(void *data, u8 *buf, int len)
+{
+ struct ds_device *dev = data;
+ int err;
+
+ err = ds_read_block(dev, buf, len);
+ if (err < 0)
+ return 0;
+
+ return len;
+}
+
+static u8 ds9490r_reset(void *data)
+{
+ struct ds_device *dev = data;
+ struct ds_status st;
+ int err;
+
+ memset(&st, 0, sizeof(st));
+
+ err = ds_reset(dev, &st);
+ if (err)
+ return 1;
+
+ return 0;
+}
+
+static int ds_w1_init(struct ds_device *dev)
+{
+ memset(&dev->master, 0, sizeof(struct w1_bus_master));
+
+ dev->master.data = dev;
+ dev->master.touch_bit = &ds9490r_touch_bit;
+ dev->master.read_bit = &ds9490r_read_bit;
+ dev->master.write_bit = &ds9490r_write_bit;
+ dev->master.read_byte = &ds9490r_read_byte;
+ dev->master.write_byte = &ds9490r_write_byte;
+ dev->master.read_block = &ds9490r_read_block;
+ dev->master.write_block = &ds9490r_write_block;
+ dev->master.reset_bus = &ds9490r_reset;
+
+ return w1_add_master_device(&dev->master);
+}
+
+static void ds_w1_fini(struct ds_device *dev)
+{
+ w1_remove_master_device(&dev->master);
+}
+
static int ds_probe(struct usb_interface *intf,
const struct usb_device_id *udev_id)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_endpoint_descriptor *endpoint;
struct usb_host_interface *iface_desc;
+ struct ds_device *dev;
int i, err;
- ds_dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL);
- if (!ds_dev) {
+ dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL);
+ if (!dev) {
printk(KERN_INFO "Failed to allocate new DS9490R structure.\n");
return -ENOMEM;
}
+ dev->udev = usb_get_dev(udev);
+ if (!dev->udev) {
+ err = -ENOMEM;
+ goto err_out_free;
+ }
+ memset(dev->ep, 0, sizeof(dev->ep));
- ds_dev->udev = usb_get_dev(udev);
- usb_set_intfdata(intf, ds_dev);
+ usb_set_intfdata(intf, dev);
- err = usb_set_interface(ds_dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3);
+ err = usb_set_interface(dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3);
if (err) {
printk(KERN_ERR "Failed to set alternative setting 3 for %d interface: err=%d.\n",
intf->altsetting[0].desc.bInterfaceNumber, err);
- return err;
+ goto err_out_clear;
}
- err = usb_reset_configuration(ds_dev->udev);
+ err = usb_reset_configuration(dev->udev);
if (err) {
printk(KERN_ERR "Failed to reset configuration: err=%d.\n", err);
- return err;
+ goto err_out_clear;
}
iface_desc = &intf->altsetting[0];
if (iface_desc->desc.bNumEndpoints != NUM_EP-1) {
printk(KERN_INFO "Num endpoints=%d. It is not DS9490R.\n", iface_desc->desc.bNumEndpoints);
- return -ENODEV;
+ err = -EINVAL;
+ goto err_out_clear;
}
- atomic_set(&ds_dev->refcnt, 0);
- memset(ds_dev->ep, 0, sizeof(ds_dev->ep));
-
/*
* This loop doesn'd show control 0 endpoint,
* so we will fill only 1-3 endpoints entry.
@@ -676,54 +874,31 @@ static int ds_probe(struct usb_interface *intf,
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
- ds_dev->ep[i+1] = endpoint->bEndpointAddress;
-
+ dev->ep[i+1] = endpoint->bEndpointAddress;
+#if 0
printk("%d: addr=%x, size=%d, dir=%s, type=%x\n",
i, endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize),
(endpoint->bEndpointAddress & USB_DIR_IN)?"IN":"OUT",
endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
+#endif
}
-#if 0
- {
- int err, i;
- u64 buf[3];
- u64 init=0xb30000002078ee81ull;
- struct ds_status st;
-
- ds_reset(ds_dev, &st);
- err = ds_search(ds_dev, init, buf, 3, 0);
- if (err < 0)
- return err;
- for (i=0; i<err; ++i)
- printk("%d: %llx\n", i, buf[i]);
-
- printk("Resetting...\n");
- ds_reset(ds_dev, &st);
- printk("Setting path for %llx.\n", init);
- err = ds_set_path(ds_dev, init);
- if (err)
- return err;
- printk("Calling MATCH_ACCESS.\n");
- err = ds_match_access(ds_dev, init);
- if (err)
- return err;
-
- printk("Searching the bus...\n");
- err = ds_search(ds_dev, init, buf, 3, 0);
-
- printk("ds_search() returned %d\n", err);
-
- if (err < 0)
- return err;
- for (i=0; i<err; ++i)
- printk("%d: %llx\n", i, buf[i]);
+ err = ds_w1_init(dev);
+ if (err)
+ goto err_out_clear;
- return 0;
- }
-#endif
+ mutex_lock(&ds_mutex);
+ list_add_tail(&dev->ds_entry, &ds_devices);
+ mutex_unlock(&ds_mutex);
return 0;
+
+err_out_clear:
+ usb_set_intfdata(intf, NULL);
+ usb_put_dev(dev->udev);
+err_out_free:
+ kfree(dev);
+ return err;
}
static void ds_disconnect(struct usb_interface *intf)
@@ -731,19 +906,19 @@ static void ds_disconnect(struct usb_interface *intf)
struct ds_device *dev;
dev = usb_get_intfdata(intf);
- usb_set_intfdata(intf, NULL);
+ if (!dev)
+ return;
- while (atomic_read(&dev->refcnt)) {
- printk(KERN_INFO "Waiting for DS to become free: refcnt=%d.\n",
- atomic_read(&dev->refcnt));
+ mutex_lock(&ds_mutex);
+ list_del(&dev->ds_entry);
+ mutex_unlock(&ds_mutex);
- if (msleep_interruptible(1000))
- flush_signals(current);
- }
+ ds_w1_fini(dev);
+
+ usb_set_intfdata(intf, NULL);
usb_put_dev(dev->udev);
kfree(dev);
- ds_dev = NULL;
}
static int ds_init(void)
@@ -769,27 +944,4 @@ module_exit(ds_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
-
-EXPORT_SYMBOL(ds_touch_bit);
-EXPORT_SYMBOL(ds_read_byte);
-EXPORT_SYMBOL(ds_read_bit);
-EXPORT_SYMBOL(ds_read_block);
-EXPORT_SYMBOL(ds_write_byte);
-EXPORT_SYMBOL(ds_write_bit);
-EXPORT_SYMBOL(ds_write_block);
-EXPORT_SYMBOL(ds_reset);
-EXPORT_SYMBOL(ds_get_device);
-EXPORT_SYMBOL(ds_put_device);
-
-/*
- * This functions can be used for EEPROM programming,
- * when driver will be included into mainline this will
- * require uncommenting.
- */
-#if 0
-EXPORT_SYMBOL(ds_start_pulse);
-EXPORT_SYMBOL(ds_set_speed);
-EXPORT_SYMBOL(ds_detect);
-EXPORT_SYMBOL(ds_stop_pulse);
-EXPORT_SYMBOL(ds_search);
-#endif
+MODULE_DESCRIPTION("DS2490 USB <-> W1 bus master driver (DS9490*)");
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 @@
-/*
- * ds_w1_bridge.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-
-#include "../w1.h"
-#include "../w1_int.h"
-#include "dscore.h"
-
-static struct ds_device *ds_dev;
-static struct w1_bus_master *ds_bus_master;
-
-static u8 ds9490r_touch_bit(void *data, u8 bit)
-{
- u8 ret;
- struct ds_device *dev = data;
-
- if (ds_touch_bit(dev, bit, &ret))
- return 0;
-
- return ret;
-}
-
-static void ds9490r_write_bit(void *data, u8 bit)
-{
- struct ds_device *dev = data;
-
- ds_write_bit(dev, bit);
-}
-
-static void ds9490r_write_byte(void *data, u8 byte)
-{
- struct ds_device *dev = data;
-
- ds_write_byte(dev, byte);
-}
-
-static u8 ds9490r_read_bit(void *data)
-{
- struct ds_device *dev = data;
- int err;
- u8 bit = 0;
-
- err = ds_touch_bit(dev, 1, &bit);
- if (err)
- return 0;
- //err = ds_read_bit(dev, &bit);
- //if (err)
- // return 0;
-
- return bit & 1;
-}
-
-static u8 ds9490r_read_byte(void *data)
-{
- struct ds_device *dev = data;
- int err;
- u8 byte = 0;
-
- err = ds_read_byte(dev, &byte);
- if (err)
- return 0;
-
- return byte;
-}
-
-static void ds9490r_write_block(void *data, const u8 *buf, int len)
-{
- struct ds_device *dev = data;
-
- ds_write_block(dev, (u8 *)buf, len);
-}
-
-static u8 ds9490r_read_block(void *data, u8 *buf, int len)
-{
- struct ds_device *dev = data;
- int err;
-
- err = ds_read_block(dev, buf, len);
- if (err < 0)
- return 0;
-
- return len;
-}
-
-static u8 ds9490r_reset(void *data)
-{
- struct ds_device *dev = data;
- struct ds_status st;
- int err;
-
- memset(&st, 0, sizeof(st));
-
- err = ds_reset(dev, &st);
- if (err)
- return 1;
-
- return 0;
-}
-
-static int __devinit ds_w1_init(void)
-{
- int err;
-
- ds_bus_master = kmalloc(sizeof(*ds_bus_master), GFP_KERNEL);
- if (!ds_bus_master) {
- printk(KERN_ERR "Failed to allocate DS9490R USB<->W1 bus_master structure.\n");
- return -ENOMEM;
- }
-
- ds_dev = ds_get_device();
- if (!ds_dev) {
- printk(KERN_ERR "DS9490R is not registered.\n");
- err = -ENODEV;
- goto err_out_free_bus_master;
- }
-
- memset(ds_bus_master, 0, sizeof(*ds_bus_master));
-
- ds_bus_master->data = ds_dev;
- ds_bus_master->touch_bit = &ds9490r_touch_bit;
- ds_bus_master->read_bit = &ds9490r_read_bit;
- ds_bus_master->write_bit = &ds9490r_write_bit;
- ds_bus_master->read_byte = &ds9490r_read_byte;
- ds_bus_master->write_byte = &ds9490r_write_byte;
- ds_bus_master->read_block = &ds9490r_read_block;
- ds_bus_master->write_block = &ds9490r_write_block;
- ds_bus_master->reset_bus = &ds9490r_reset;
-
- err = w1_add_master_device(ds_bus_master);
- if (err)
- goto err_out_put_device;
-
- return 0;
-
-err_out_put_device:
- ds_put_device(ds_dev);
-err_out_free_bus_master:
- kfree(ds_bus_master);
-
- return err;
-}
-
-static void __devexit ds_w1_fini(void)
-{
- w1_remove_master_device(ds_bus_master);
- ds_put_device(ds_dev);
- kfree(ds_bus_master);
-}
-
-module_init(ds_w1_init);
-module_exit(ds_w1_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_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 @@
-/*
- * dscore.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __DSCORE_H
-#define __DSCORE_H
-
-#include <linux/usb.h>
-#include <asm/atomic.h>
-
-/* COMMAND TYPE CODES */
-#define CONTROL_CMD 0x00
-#define COMM_CMD 0x01
-#define MODE_CMD 0x02
-
-/* CONTROL COMMAND CODES */
-#define CTL_RESET_DEVICE 0x0000
-#define CTL_START_EXE 0x0001
-#define CTL_RESUME_EXE 0x0002
-#define CTL_HALT_EXE_IDLE 0x0003
-#define CTL_HALT_EXE_DONE 0x0004
-#define CTL_FLUSH_COMM_CMDS 0x0007
-#define CTL_FLUSH_RCV_BUFFER 0x0008
-#define CTL_FLUSH_XMT_BUFFER 0x0009
-#define CTL_GET_COMM_CMDS 0x000A
-
-/* MODE COMMAND CODES */
-#define MOD_PULSE_EN 0x0000
-#define MOD_SPEED_CHANGE_EN 0x0001
-#define MOD_1WIRE_SPEED 0x0002
-#define MOD_STRONG_PU_DURATION 0x0003
-#define MOD_PULLDOWN_SLEWRATE 0x0004
-#define MOD_PROG_PULSE_DURATION 0x0005
-#define MOD_WRITE1_LOWTIME 0x0006
-#define MOD_DSOW0_TREC 0x0007
-
-/* COMMUNICATION COMMAND CODES */
-#define COMM_ERROR_ESCAPE 0x0601
-#define COMM_SET_DURATION 0x0012
-#define COMM_BIT_IO 0x0020
-#define COMM_PULSE 0x0030
-#define COMM_1_WIRE_RESET 0x0042
-#define COMM_BYTE_IO 0x0052
-#define COMM_MATCH_ACCESS 0x0064
-#define COMM_BLOCK_IO 0x0074
-#define COMM_READ_STRAIGHT 0x0080
-#define COMM_DO_RELEASE 0x6092
-#define COMM_SET_PATH 0x00A2
-#define COMM_WRITE_SRAM_PAGE 0x00B2
-#define COMM_WRITE_EPROM 0x00C4
-#define COMM_READ_CRC_PROT_PAGE 0x00D4
-#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4
-#define COMM_SEARCH_ACCESS 0x00F4
-
-/* Communication command bits */
-#define COMM_TYPE 0x0008
-#define COMM_SE 0x0008
-#define COMM_D 0x0008
-#define COMM_Z 0x0008
-#define COMM_CH 0x0008
-#define COMM_SM 0x0008
-#define COMM_R 0x0008
-#define COMM_IM 0x0001
-
-#define COMM_PS 0x4000
-#define COMM_PST 0x4000
-#define COMM_CIB 0x4000
-#define COMM_RTS 0x4000
-#define COMM_DT 0x2000
-#define COMM_SPU 0x1000
-#define COMM_F 0x0800
-#define COMM_NTP 0x0400
-#define COMM_ICP 0x0200
-#define COMM_RST 0x0100
-
-#define PULSE_PROG 0x01
-#define PULSE_SPUE 0x02
-
-#define BRANCH_MAIN 0xCC
-#define BRANCH_AUX 0x33
-
-/*
- * Duration of the strong pull-up pulse in milliseconds.
- */
-#define PULLUP_PULSE_DURATION 750
-
-/* Status flags */
-#define ST_SPUA 0x01 /* Strong Pull-up is active */
-#define ST_PRGA 0x02 /* 12V programming pulse is being generated */
-#define ST_12VP 0x04 /* external 12V programming voltage is present */
-#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */
-#define ST_HALT 0x10 /* DS2490 is currently halted */
-#define ST_IDLE 0x20 /* DS2490 is currently idle */
-#define ST_EPOF 0x80
-
-#define SPEED_NORMAL 0x00
-#define SPEED_FLEXIBLE 0x01
-#define SPEED_OVERDRIVE 0x02
-
-#define NUM_EP 4
-#define EP_CONTROL 0
-#define EP_STATUS 1
-#define EP_DATA_OUT 2
-#define EP_DATA_IN 3
-
-struct ds_device
-{
- struct usb_device *udev;
- struct usb_interface *intf;
-
- int ep[NUM_EP];
-
- atomic_t refcnt;
-};
-
-struct ds_status
-{
- u8 enable;
- u8 speed;
- u8 pullup_dur;
- u8 ppuls_dur;
- u8 pulldown_slew;
- u8 write1_time;
- u8 write0_time;
- u8 reserved0;
- u8 status;
- u8 command0;
- u8 command1;
- u8 command_buffer_status;
- u8 data_out_buffer_status;
- u8 data_in_buffer_status;
- u8 reserved1;
- u8 reserved2;
-
-};
-
-int ds_touch_bit(struct ds_device *, u8, u8 *);
-int ds_read_byte(struct ds_device *, u8 *);
-int ds_read_bit(struct ds_device *, u8 *);
-int ds_write_byte(struct ds_device *, u8);
-int ds_write_bit(struct ds_device *, u8);
-int ds_reset(struct ds_device *, struct ds_status *);
-struct ds_device * ds_get_device(void);
-void ds_put_device(struct ds_device *);
-int ds_write_block(struct ds_device *, u8 *, int);
-int ds_read_block(struct ds_device *, u8 *, int);
-
-#endif /* __DSCORE_H */
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 20:46:49 +0100