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style adjustation, removed mutex

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This commit is contained in:
Ondra Havel 2012-03-26 23:11:59 +02:00
parent 2aa9da8062
commit dabf7c4f9e
1 changed files with 80 additions and 70 deletions
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150
hanvon.c
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@ -4,7 +4,7 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/usb/input.h> #include <linux/usb/input.h>
#define DRIVER_VERSION "0.4a" #define DRIVER_VERSION "0.4b"
#define DRIVER_AUTHOR "Ondra Havel <ondra.havel@gmail.com>" #define DRIVER_AUTHOR "Ondra Havel <ondra.havel@gmail.com>"
#define DRIVER_DESC "USB Hanvon tablet driver" #define DRIVER_DESC "USB Hanvon tablet driver"
#define DRIVER_LICENSE "GPL" #define DRIVER_LICENSE "GPL"
@ -20,8 +20,10 @@ MODULE_LICENSE(DRIVER_LICENSE);
#define USB_PRODUCT_ID_RL0604 0x851f #define USB_PRODUCT_ID_RL0604 0x851f
#define USB_AM_PACKET_LEN 10 #define USB_AM_PACKET_LEN 10
static int lbuttons[]={BTN_0,BTN_1,BTN_2,BTN_3}; /* reported on all AMs */ /* reported on all AMs */
static int rbuttons[]={BTN_4,BTN_5,BTN_6,BTN_7}; /* reported on AM1107+ */ static int lbuttons[] = {BTN_0, BTN_1, BTN_2, BTN_3};
/* reported on AM1107+ */
static int rbuttons[] = {BTN_4, BTN_5, BTN_6, BTN_7};
#define AM_WHEEL_THRESHOLD 4 #define AM_WHEEL_THRESHOLD 4
@ -34,7 +36,6 @@ static int rbuttons[]={BTN_4,BTN_5,BTN_6,BTN_7}; /* reported on AM1107+ */
struct hanvon { struct hanvon {
unsigned char *data; unsigned char *data;
dma_addr_t data_dma; dma_addr_t data_dma;
struct mutex mutex;
struct input_dev *dev; struct input_dev *dev;
struct usb_device *usbdev; struct usb_device *usbdev;
struct urb *irq; struct urb *irq;
@ -42,18 +43,20 @@ struct hanvon {
char phys[32]; char phys[32];
}; };
static void report_buttons(struct hanvon *hanvon, int buttons[],unsigned char dta) static void report_buttons(struct hanvon *hanvon,
int buttons[], unsigned char dta)
{ {
struct input_dev *dev = hanvon->dev; struct input_dev *dev = hanvon->dev;
if((dta & 0xf0) == 0xa0) { if ((dta & 0xf0) == 0xa0) {
input_report_key(dev, buttons[1], dta & 0x02); input_report_key(dev, buttons[1], dta & 0x02);
input_report_key(dev, buttons[2], dta & 0x04); input_report_key(dev, buttons[2], dta & 0x04);
input_report_key(dev, buttons[3], dta & 0x08); input_report_key(dev, buttons[3], dta & 0x08);
} else { } else {
if(dta <= 0x3f) { /* slider area active */ if (dta <= 0x3f) { /* slider area active */
int diff = dta - hanvon->old_wheel_pos; int diff = dta - hanvon->old_wheel_pos;
if(abs(diff) < AM_WHEEL_THRESHOLD) /* detect new/continue old move */
if (abs(diff) < AM_WHEEL_THRESHOLD)
input_report_rel(dev, REL_WHEEL, diff); input_report_rel(dev, REL_WHEEL, diff);
hanvon->old_wheel_pos = dta; hanvon->old_wheel_pos = dta;
@ -69,49 +72,56 @@ static void hanvon_irq(struct urb *urb)
int ret; int ret;
switch (urb->status) { switch (urb->status) {
case 0: case 0:
/* success */ /* success */
break; break;
case -ECONNRESET: case -ECONNRESET:
case -ENOENT: case -ENOENT:
case -ESHUTDOWN: case -ESHUTDOWN:
/* this urb is terminated, clean up */ /* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __func__, urb->status); dbg("%s - urb shutting down with status: %d",
return; __func__, urb->status);
default: return;
dbg("%s - nonzero urb status received: %d", __func__, urb->status); default:
goto exit; dbg("%s - nonzero urb status received: %d",
__func__, urb->status);
goto exit;
} }
switch(data[0]) { switch (data[0]) {
case 0x01: /* button press */ case 0x01: /* button press */
if(data[1]==0x55) /* left side */ if (data[1] == 0x55) /* left side */
report_buttons(hanvon,lbuttons,data[2]); report_buttons(hanvon, lbuttons, data[2]);
if(data[3]==0xaa) /* right side (am1107, am1209) */ if (data[3] == 0xaa) /* right side (am1107, am1209) */
report_buttons(hanvon,rbuttons,data[4]); report_buttons(hanvon, rbuttons, data[4]);
break;
case 0x02: /* position change */
if((data[1] & 0xf0) != 0) {
input_report_abs(dev, ABS_X, be16_to_cpup((__be16 *)&data[2]));
input_report_abs(dev, ABS_Y, be16_to_cpup((__be16 *)&data[4]));
input_report_abs(dev, ABS_TILT_X, data[7] & 0x3f);
input_report_abs(dev, ABS_TILT_Y, data[8]);
input_report_abs(dev, ABS_PRESSURE, be16_to_cpup((__be16 *)&data[6])>>6);
}
input_report_key(dev, BTN_LEFT, data[1] & 0x1);
input_report_key(dev, BTN_RIGHT, data[1] & 0x2); /* stylus button pressed (right click) */
input_report_key(dev, lbuttons[0], data[1] & 0x20);
break; break;
case 0x02: /* position change */
if ((data[1] & 0xf0) != 0) {
input_report_abs(dev, ABS_X,
be16_to_cpup((__be16 *)&data[2]));
input_report_abs(dev, ABS_Y,
be16_to_cpup((__be16 *)&data[4]));
input_report_abs(dev, ABS_TILT_X, data[7] & 0x3f);
input_report_abs(dev, ABS_TILT_Y, data[8]);
input_report_abs(dev, ABS_PRESSURE,
be16_to_cpup((__be16 *)&data[6])>>6);
}
input_report_key(dev, BTN_LEFT, data[1] & 0x1);
/* stylus button pressed (right click) */
input_report_key(dev, BTN_RIGHT, data[1] & 0x2);
input_report_key(dev, lbuttons[0], data[1] & 0x20);
break;
} }
input_sync(dev); input_sync(dev);
exit: exit:
ret = usb_submit_urb (urb, GFP_ATOMIC); ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret) if (ret)
err("%s - usb_submit_urb failed with result %d", __func__, ret); err("%s - usb_submit_urb failed with result %d",
__func__, ret);
} }
static struct usb_device_id hanvon_ids[] = { static struct usb_device_id hanvon_ids[] = {
@ -126,15 +136,13 @@ MODULE_DEVICE_TABLE(usb, hanvon_ids);
static int hanvon_open(struct input_dev *dev) static int hanvon_open(struct input_dev *dev)
{ {
int ret=0; int ret = 0;
struct hanvon *hanvon = input_get_drvdata(dev); struct hanvon *hanvon = input_get_drvdata(dev);
hanvon->old_wheel_pos = -AM_WHEEL_THRESHOLD-1; hanvon->old_wheel_pos = -AM_WHEEL_THRESHOLD-1;
hanvon->irq->dev = hanvon->usbdev; hanvon->irq->dev = hanvon->usbdev;
mutex_lock(&hanvon->mutex); if (usb_submit_urb(hanvon->irq, GFP_KERNEL))
if(usb_submit_urb(hanvon->irq, GFP_KERNEL))
ret = -EIO; ret = -EIO;
mutex_unlock(&hanvon->mutex);
return ret; return ret;
} }
@ -142,12 +150,11 @@ static void hanvon_close(struct input_dev *dev)
{ {
struct hanvon *hanvon = input_get_drvdata(dev); struct hanvon *hanvon = input_get_drvdata(dev);
mutex_lock(&hanvon->mutex);
usb_kill_urb(hanvon->irq); usb_kill_urb(hanvon->irq);
mutex_unlock(&hanvon->mutex);
} }
static int hanvon_probe(struct usb_interface *intf, const struct usb_device_id *id) static int hanvon_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{ {
struct usb_device *dev = interface_to_usbdev(intf); struct usb_device *dev = interface_to_usbdev(intf);
struct usb_endpoint_descriptor *endpoint; struct usb_endpoint_descriptor *endpoint;
@ -160,7 +167,8 @@ static int hanvon_probe(struct usb_interface *intf, const struct usb_device_id *
if (!hanvon || !input_dev) if (!hanvon || !input_dev)
goto fail1; goto fail1;
hanvon->data = (unsigned char *)usb_alloc_coherent(dev, USB_AM_PACKET_LEN, GFP_KERNEL, &hanvon->data_dma); hanvon->data = usb_alloc_coherent(dev,
USB_AM_PACKET_LEN, GFP_KERNEL, &hanvon->data_dma);
if (!hanvon->data) if (!hanvon->data)
goto fail1; goto fail1;
@ -184,19 +192,26 @@ static int hanvon_probe(struct usb_interface *intf, const struct usb_device_id *
input_dev->open = hanvon_open; input_dev->open = hanvon_open;
input_dev->close = hanvon_close; input_dev->close = hanvon_close;
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL); __set_bit(EV_KEY, input_dev->evbit);
input_dev->keybit[BIT_WORD(BTN_DIGI)] |= BIT_MASK(BTN_TOOL_PEN) | BIT_MASK(BTN_TOUCH); __set_bit(EV_ABS, input_dev->evbit);
input_dev->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); __set_bit(EV_REL, input_dev->evbit);
for(i=0;i<sizeof(lbuttons)/sizeof(lbuttons[0]);i++) __set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
for (i = 0; i < sizeof(lbuttons) / sizeof(lbuttons[0]); i++)
__set_bit(lbuttons[i], input_dev->keybit); __set_bit(lbuttons[i], input_dev->keybit);
for(i=0;i<sizeof(rbuttons)/sizeof(rbuttons[0]);i++) for (i = 0; i < sizeof(rbuttons) / sizeof(rbuttons[0]); i++)
__set_bit(rbuttons[i], input_dev->keybit); __set_bit(rbuttons[i], input_dev->keybit);
input_set_abs_params(input_dev, ABS_X, 0, AM_MAX_ABS_X, 4, 0); input_set_abs_params(input_dev, ABS_X, 0, AM_MAX_ABS_X, 4, 0);
input_set_abs_params(input_dev, ABS_Y, 0, AM_MAX_ABS_Y, 4, 0); input_set_abs_params(input_dev, ABS_Y, 0, AM_MAX_ABS_Y, 4, 0);
input_set_abs_params(input_dev, ABS_TILT_X, 0, AM_MAX_TILT_X, 0, 0); input_set_abs_params(input_dev, ABS_TILT_X,
input_set_abs_params(input_dev, ABS_TILT_Y, 0, AM_MAX_TILT_Y, 0, 0); 0, AM_MAX_TILT_X, 0, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, AM_MAX_PRESSURE, 0, 0); input_set_abs_params(input_dev, ABS_TILT_Y,
0, AM_MAX_TILT_Y, 0, 0);
input_set_abs_params(input_dev, ABS_PRESSURE,
0, AM_MAX_PRESSURE, 0, 0);
input_set_capability(input_dev, EV_REL, REL_WHEEL); input_set_capability(input_dev, EV_REL, REL_WHEEL);
endpoint = &intf->cur_altsetting->endpoint[0].desc; endpoint = &intf->cur_altsetting->endpoint[0].desc;
@ -208,16 +223,17 @@ static int hanvon_probe(struct usb_interface *intf, const struct usb_device_id *
hanvon->irq->transfer_dma = hanvon->data_dma; hanvon->irq->transfer_dma = hanvon->data_dma;
hanvon->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; hanvon->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
usb_set_intfdata(intf, hanvon);
error = input_register_device(hanvon->dev); error = input_register_device(hanvon->dev);
if (error) if (error)
goto fail3; goto fail3;
usb_set_intfdata(intf, hanvon);
mutex_init(&hanvon->mutex);
return 0; return 0;
fail3: usb_free_urb(hanvon->irq); fail3: usb_free_urb(hanvon->irq);
fail2: usb_free_coherent(dev, USB_AM_PACKET_LEN, hanvon->data, hanvon->data_dma); fail2: usb_free_coherent(dev, USB_AM_PACKET_LEN,
hanvon->data, hanvon->data_dma);
fail1: input_free_device(input_dev); fail1: input_free_device(input_dev);
kfree(hanvon); kfree(hanvon);
return error; return error;
@ -227,12 +243,12 @@ static void hanvon_disconnect(struct usb_interface *intf)
{ {
struct hanvon *hanvon = usb_get_intfdata(intf); struct hanvon *hanvon = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
usb_kill_urb(hanvon->irq);
input_unregister_device(hanvon->dev); input_unregister_device(hanvon->dev);
usb_free_urb(hanvon->irq); usb_free_urb(hanvon->irq);
usb_free_coherent(interface_to_usbdev(intf), USB_AM_PACKET_LEN, hanvon->data, hanvon->data_dma); usb_free_coherent(interface_to_usbdev(intf),
USB_AM_PACKET_LEN, hanvon->data, hanvon->data_dma);
kfree(hanvon); kfree(hanvon);
usb_set_intfdata(intf, NULL);
} }
static struct usb_driver hanvon_driver = { static struct usb_driver hanvon_driver = {
@ -244,14 +260,8 @@ static struct usb_driver hanvon_driver = {
static int __init hanvon_init(void) static int __init hanvon_init(void)
{ {
int ret;
if((ret = usb_register(&hanvon_driver)) != 0)
return ret;
printk(DRIVER_DESC " " DRIVER_VERSION "\n"); printk(DRIVER_DESC " " DRIVER_VERSION "\n");
return usb_register(&hanvon_driver);
return 0;
} }
static void __exit hanvon_exit(void) static void __exit hanvon_exit(void)