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https://github.com/adulau/aha.git
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Input: vsxxxaa - change formatting style to match the rest of the kernel
- no spaces between function name and opening parenthesis - switch statements were indented too much This makes checkpatch (and me) happy. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov
parent
7d3fadd148
commit
216023255a
1 changed files with 172 additions and 196 deletions
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@ -86,27 +86,28 @@
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#define DRIVER_DESC "Driver for DEC VSXXX-AA and -GA mice and VSXXX-AB tablet"
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MODULE_AUTHOR ("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
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MODULE_DESCRIPTION (DRIVER_DESC);
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MODULE_LICENSE ("GPL");
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MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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#undef VSXXXAA_DEBUG
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#ifdef VSXXXAA_DEBUG
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#define DBG(x...) printk (x)
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#define DBG(x...) printk(x)
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#else
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#define DBG(x...) do {} while (0)
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#endif
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#define VSXXXAA_INTRO_MASK 0x80
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#define VSXXXAA_INTRO_HEAD 0x80
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#define IS_HDR_BYTE(x) (((x) & VSXXXAA_INTRO_MASK) \
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== VSXXXAA_INTRO_HEAD)
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#define IS_HDR_BYTE(x) \
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(((x) & VSXXXAA_INTRO_MASK) == VSXXXAA_INTRO_HEAD)
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#define VSXXXAA_PACKET_MASK 0xe0
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#define VSXXXAA_PACKET_REL 0x80
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#define VSXXXAA_PACKET_ABS 0xc0
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#define VSXXXAA_PACKET_POR 0xa0
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#define MATCH_PACKET_TYPE(data, type) (((data) & VSXXXAA_PACKET_MASK) == (type))
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#define MATCH_PACKET_TYPE(data, type) \
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(((data) & VSXXXAA_PACKET_MASK) == (type))
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@ -123,52 +124,50 @@ struct vsxxxaa {
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char phys[32];
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};
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static void
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vsxxxaa_drop_bytes (struct vsxxxaa *mouse, int num)
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static void vsxxxaa_drop_bytes(struct vsxxxaa *mouse, int num)
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{
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if (num >= mouse->count)
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if (num >= mouse->count) {
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mouse->count = 0;
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else {
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memmove (mouse->buf, mouse->buf + num - 1, BUFLEN - num);
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} else {
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memmove(mouse->buf, mouse->buf + num - 1, BUFLEN - num);
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mouse->count -= num;
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}
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}
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static void
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vsxxxaa_queue_byte (struct vsxxxaa *mouse, unsigned char byte)
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static void vsxxxaa_queue_byte(struct vsxxxaa *mouse, unsigned char byte)
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{
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if (mouse->count == BUFLEN) {
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printk (KERN_ERR "%s on %s: Dropping a byte of full buffer.\n",
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printk(KERN_ERR "%s on %s: Dropping a byte of full buffer.\n",
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mouse->name, mouse->phys);
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vsxxxaa_drop_bytes (mouse, 1);
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vsxxxaa_drop_bytes(mouse, 1);
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}
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DBG (KERN_INFO "Queueing byte 0x%02x\n", byte);
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DBG(KERN_INFO "Queueing byte 0x%02x\n", byte);
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mouse->buf[mouse->count++] = byte;
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}
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static void
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vsxxxaa_detection_done (struct vsxxxaa *mouse)
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static void vsxxxaa_detection_done(struct vsxxxaa *mouse)
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{
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switch (mouse->type) {
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case 0x02:
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strlcpy (mouse->name, "DEC VSXXX-AA/-GA mouse",
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sizeof (mouse->name));
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strlcpy(mouse->name, "DEC VSXXX-AA/-GA mouse",
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sizeof(mouse->name));
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break;
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case 0x04:
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strlcpy (mouse->name, "DEC VSXXX-AB digitizer",
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sizeof (mouse->name));
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strlcpy(mouse->name, "DEC VSXXX-AB digitizer",
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sizeof(mouse->name));
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break;
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default:
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snprintf (mouse->name, sizeof (mouse->name),
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snprintf(mouse->name, sizeof(mouse->name),
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"unknown DEC pointer device (type = 0x%02x)",
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mouse->type);
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break;
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}
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printk (KERN_INFO
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printk(KERN_INFO
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"Found %s version 0x%02x from country 0x%02x on port %s\n",
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mouse->name, mouse->version, mouse->country, mouse->phys);
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}
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@ -176,42 +175,38 @@ vsxxxaa_detection_done (struct vsxxxaa *mouse)
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/*
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* Returns number of bytes to be dropped, 0 if packet is okay.
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*/
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static int
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vsxxxaa_check_packet (struct vsxxxaa *mouse, int packet_len)
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static int vsxxxaa_check_packet(struct vsxxxaa *mouse, int packet_len)
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{
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int i;
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/* First byte must be a header byte */
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if (!IS_HDR_BYTE (mouse->buf[0])) {
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DBG ("vsck: len=%d, 1st=0x%02x\n", packet_len, mouse->buf[0]);
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if (!IS_HDR_BYTE(mouse->buf[0])) {
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DBG("vsck: len=%d, 1st=0x%02x\n", packet_len, mouse->buf[0]);
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return 1;
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}
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/* Check all following bytes */
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if (packet_len > 1) {
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for (i = 1; i < packet_len; i++) {
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if (IS_HDR_BYTE (mouse->buf[i])) {
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printk (KERN_ERR "Need to drop %d bytes "
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"of a broken packet.\n",
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if (IS_HDR_BYTE(mouse->buf[i])) {
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printk(KERN_ERR
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"Need to drop %d bytes of a broken packet.\n",
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i - 1);
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DBG (KERN_INFO "check: len=%d, b[%d]=0x%02x\n",
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DBG(KERN_INFO "check: len=%d, b[%d]=0x%02x\n",
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packet_len, i, mouse->buf[i]);
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return i - 1;
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}
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}
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}
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return 0;
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}
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static __inline__ int
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vsxxxaa_smells_like_packet (struct vsxxxaa *mouse, unsigned char type, size_t len)
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static inline int vsxxxaa_smells_like_packet(struct vsxxxaa *mouse,
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unsigned char type, size_t len)
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{
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return (mouse->count >= len) && MATCH_PACKET_TYPE (mouse->buf[0], type);
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return mouse->count >= len && MATCH_PACKET_TYPE(mouse->buf[0], type);
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}
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static void
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vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse)
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static void vsxxxaa_handle_REL_packet(struct vsxxxaa *mouse)
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{
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struct input_dev *dev = mouse->dev;
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unsigned char *buf = mouse->buf;
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@ -232,43 +227,42 @@ vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse)
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* 0, bit 4 of byte 0 is direction.
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*/
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dx = buf[1] & 0x7f;
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dx *= ((buf[0] >> 4) & 0x01)? 1: -1;
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dx *= ((buf[0] >> 4) & 0x01) ? 1 : -1;
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/*
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* Low 7 bit of byte 2 are abs(dy), bit 7 is
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* 0, bit 3 of byte 0 is direction.
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*/
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dy = buf[2] & 0x7f;
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dy *= ((buf[0] >> 3) & 0x01)? -1: 1;
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dy *= ((buf[0] >> 3) & 0x01) ? -1 : 1;
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/*
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* Get button state. It's the low three bits
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* (for three buttons) of byte 0.
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*/
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left = (buf[0] & 0x04)? 1: 0;
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middle = (buf[0] & 0x02)? 1: 0;
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right = (buf[0] & 0x01)? 1: 0;
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left = buf[0] & 0x04;
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middle = buf[0] & 0x02;
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right = buf[0] & 0x01;
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vsxxxaa_drop_bytes (mouse, 3);
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vsxxxaa_drop_bytes(mouse, 3);
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DBG (KERN_INFO "%s on %s: dx=%d, dy=%d, buttons=%s%s%s\n",
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DBG(KERN_INFO "%s on %s: dx=%d, dy=%d, buttons=%s%s%s\n",
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mouse->name, mouse->phys, dx, dy,
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left? "L": "l", middle? "M": "m", right? "R": "r");
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left ? "L" : "l", middle ? "M" : "m", right ? "R" : "r");
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/*
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* Report what we've found so far...
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*/
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input_report_key (dev, BTN_LEFT, left);
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input_report_key (dev, BTN_MIDDLE, middle);
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input_report_key (dev, BTN_RIGHT, right);
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input_report_key (dev, BTN_TOUCH, 0);
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input_report_rel (dev, REL_X, dx);
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input_report_rel (dev, REL_Y, dy);
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input_sync (dev);
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_MIDDLE, middle);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_TOUCH, 0);
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input_report_rel(dev, REL_X, dx);
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input_report_rel(dev, REL_Y, dy);
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input_sync(dev);
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}
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static void
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vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse)
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static void vsxxxaa_handle_ABS_packet(struct vsxxxaa *mouse)
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{
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struct input_dev *dev = mouse->dev;
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unsigned char *buf = mouse->buf;
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@ -296,32 +290,31 @@ vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse)
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/*
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* Get button state. It's bits <4..1> of byte 0.
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*/
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left = (buf[0] & 0x02)? 1: 0;
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middle = (buf[0] & 0x04)? 1: 0;
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right = (buf[0] & 0x08)? 1: 0;
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touch = (buf[0] & 0x10)? 1: 0;
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left = buf[0] & 0x02;
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middle = buf[0] & 0x04;
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right = buf[0] & 0x08;
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touch = buf[0] & 0x10;
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vsxxxaa_drop_bytes (mouse, 5);
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vsxxxaa_drop_bytes(mouse, 5);
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DBG (KERN_INFO "%s on %s: x=%d, y=%d, buttons=%s%s%s%s\n",
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DBG(KERN_INFO "%s on %s: x=%d, y=%d, buttons=%s%s%s%s\n",
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mouse->name, mouse->phys, x, y,
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left? "L": "l", middle? "M": "m",
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right? "R": "r", touch? "T": "t");
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left ? "L" : "l", middle ? "M" : "m",
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right ? "R" : "r", touch ? "T" : "t");
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/*
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* Report what we've found so far...
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*/
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input_report_key (dev, BTN_LEFT, left);
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input_report_key (dev, BTN_MIDDLE, middle);
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input_report_key (dev, BTN_RIGHT, right);
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input_report_key (dev, BTN_TOUCH, touch);
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input_report_abs (dev, ABS_X, x);
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input_report_abs (dev, ABS_Y, y);
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input_sync (dev);
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_MIDDLE, middle);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_TOUCH, touch);
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input_report_abs(dev, ABS_X, x);
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input_report_abs(dev, ABS_Y, y);
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input_sync(dev);
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}
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static void
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vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse)
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static void vsxxxaa_handle_POR_packet(struct vsxxxaa *mouse)
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{
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struct input_dev *dev = mouse->dev;
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unsigned char *buf = mouse->buf;
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@ -356,23 +349,23 @@ vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse)
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* (for three buttons) of byte 0. Maybe even the bit <3>
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* has some meaning if a tablet is attached.
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*/
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left = (buf[0] & 0x04)? 1: 0;
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middle = (buf[0] & 0x02)? 1: 0;
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right = (buf[0] & 0x01)? 1: 0;
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left = buf[0] & 0x04;
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middle = buf[0] & 0x02;
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right = buf[0] & 0x01;
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vsxxxaa_drop_bytes (mouse, 4);
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vsxxxaa_detection_done (mouse);
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vsxxxaa_drop_bytes(mouse, 4);
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vsxxxaa_detection_done(mouse);
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if (error <= 0x1f) {
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/* No (serious) error. Report buttons */
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input_report_key (dev, BTN_LEFT, left);
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input_report_key (dev, BTN_MIDDLE, middle);
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input_report_key (dev, BTN_RIGHT, right);
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input_report_key (dev, BTN_TOUCH, 0);
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input_sync (dev);
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input_report_key(dev, BTN_LEFT, left);
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input_report_key(dev, BTN_MIDDLE, middle);
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input_report_key(dev, BTN_RIGHT, right);
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input_report_key(dev, BTN_TOUCH, 0);
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input_sync(dev);
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if (error != 0)
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printk (KERN_INFO "Your %s on %s reports error=0x%02x\n",
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printk(KERN_INFO "Your %s on %s reports error=0x%02x\n",
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mouse->name, mouse->phys, error);
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}
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@ -381,18 +374,18 @@ vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse)
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* If the mouse was hot-plugged, we need to force differential mode
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* now... However, give it a second to recover from it's reset.
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*/
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printk (KERN_NOTICE "%s on %s: Forceing standard packet format, "
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printk(KERN_NOTICE
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"%s on %s: Forcing standard packet format, "
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"incremental streaming mode and 72 samples/sec\n",
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mouse->name, mouse->phys);
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serio_write (mouse->serio, 'S'); /* Standard format */
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mdelay (50);
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serio_write (mouse->serio, 'R'); /* Incremental */
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mdelay (50);
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serio_write (mouse->serio, 'L'); /* 72 samples/sec */
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serio_write(mouse->serio, 'S'); /* Standard format */
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mdelay(50);
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serio_write(mouse->serio, 'R'); /* Incremental */
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mdelay(50);
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serio_write(mouse->serio, 'L'); /* 72 samples/sec */
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}
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static void
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vsxxxaa_parse_buffer (struct vsxxxaa *mouse)
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static void vsxxxaa_parse_buffer(struct vsxxxaa *mouse)
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{
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unsigned char *buf = mouse->buf;
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int stray_bytes;
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@ -409,122 +402,107 @@ vsxxxaa_parse_buffer (struct vsxxxaa *mouse)
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* activity on the mouse.
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*/
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while (mouse->count > 0 && !IS_HDR_BYTE(buf[0])) {
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printk (KERN_ERR "%s on %s: Dropping a byte to regain "
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printk(KERN_ERR "%s on %s: Dropping a byte to regain "
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"sync with mouse data stream...\n",
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mouse->name, mouse->phys);
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vsxxxaa_drop_bytes (mouse, 1);
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vsxxxaa_drop_bytes(mouse, 1);
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}
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/*
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* Check for packets we know about.
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*/
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if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_REL, 3)) {
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if (vsxxxaa_smells_like_packet(mouse, VSXXXAA_PACKET_REL, 3)) {
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/* Check for broken packet */
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stray_bytes = vsxxxaa_check_packet (mouse, 3);
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if (stray_bytes > 0) {
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printk (KERN_ERR "Dropping %d bytes now...\n",
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stray_bytes);
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vsxxxaa_drop_bytes (mouse, stray_bytes);
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continue;
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}
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stray_bytes = vsxxxaa_check_packet(mouse, 3);
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if (!stray_bytes)
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vsxxxaa_handle_REL_packet(mouse);
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vsxxxaa_handle_REL_packet (mouse);
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continue; /* More to parse? */
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}
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if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_ABS, 5)) {
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} else if (vsxxxaa_smells_like_packet(mouse,
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VSXXXAA_PACKET_ABS, 5)) {
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/* Check for broken packet */
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stray_bytes = vsxxxaa_check_packet (mouse, 5);
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if (stray_bytes > 0) {
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printk (KERN_ERR "Dropping %d bytes now...\n",
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stray_bytes);
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vsxxxaa_drop_bytes (mouse, stray_bytes);
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continue;
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}
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stray_bytes = vsxxxaa_check_packet(mouse, 5);
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if (!stray_bytes)
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vsxxxaa_handle_ABS_packet(mouse);
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vsxxxaa_handle_ABS_packet (mouse);
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continue; /* More to parse? */
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}
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if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_POR, 4)) {
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} else if (vsxxxaa_smells_like_packet(mouse,
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VSXXXAA_PACKET_POR, 4)) {
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/* Check for broken packet */
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stray_bytes = vsxxxaa_check_packet (mouse, 4);
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if (stray_bytes > 0) {
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printk (KERN_ERR "Dropping %d bytes now...\n",
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stray_bytes);
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vsxxxaa_drop_bytes (mouse, stray_bytes);
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continue;
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}
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vsxxxaa_handle_POR_packet (mouse);
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continue; /* More to parse? */
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}
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stray_bytes = vsxxxaa_check_packet(mouse, 4);
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if (!stray_bytes)
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vsxxxaa_handle_POR_packet(mouse);
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} else {
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break; /* No REL, ABS or POR packet found */
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}
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if (stray_bytes > 0) {
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printk(KERN_ERR "Dropping %d bytes now...\n",
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stray_bytes);
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vsxxxaa_drop_bytes(mouse, stray_bytes);
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}
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} while (1);
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}
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static irqreturn_t
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vsxxxaa_interrupt (struct serio *serio, unsigned char data, unsigned int flags)
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static irqreturn_t vsxxxaa_interrupt(struct serio *serio,
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unsigned char data, unsigned int flags)
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||||
{
|
||||
struct vsxxxaa *mouse = serio_get_drvdata (serio);
|
||||
struct vsxxxaa *mouse = serio_get_drvdata(serio);
|
||||
|
||||
vsxxxaa_queue_byte (mouse, data);
|
||||
vsxxxaa_parse_buffer (mouse);
|
||||
vsxxxaa_queue_byte(mouse, data);
|
||||
vsxxxaa_parse_buffer(mouse);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static void
|
||||
vsxxxaa_disconnect (struct serio *serio)
|
||||
static void vsxxxaa_disconnect(struct serio *serio)
|
||||
{
|
||||
struct vsxxxaa *mouse = serio_get_drvdata (serio);
|
||||
struct vsxxxaa *mouse = serio_get_drvdata(serio);
|
||||
|
||||
serio_close (serio);
|
||||
serio_set_drvdata (serio, NULL);
|
||||
input_unregister_device (mouse->dev);
|
||||
kfree (mouse);
|
||||
serio_close(serio);
|
||||
serio_set_drvdata(serio, NULL);
|
||||
input_unregister_device(mouse->dev);
|
||||
kfree(mouse);
|
||||
}
|
||||
|
||||
static int
|
||||
vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
|
||||
static int vsxxxaa_connect(struct serio *serio, struct serio_driver *drv)
|
||||
{
|
||||
struct vsxxxaa *mouse;
|
||||
struct input_dev *input_dev;
|
||||
int err = -ENOMEM;
|
||||
|
||||
mouse = kzalloc (sizeof (struct vsxxxaa), GFP_KERNEL);
|
||||
input_dev = input_allocate_device ();
|
||||
mouse = kzalloc(sizeof(struct vsxxxaa), GFP_KERNEL);
|
||||
input_dev = input_allocate_device();
|
||||
if (!mouse || !input_dev)
|
||||
goto fail1;
|
||||
|
||||
mouse->dev = input_dev;
|
||||
mouse->serio = serio;
|
||||
strlcat (mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer",
|
||||
sizeof (mouse->name));
|
||||
snprintf (mouse->phys, sizeof (mouse->phys), "%s/input0", serio->phys);
|
||||
strlcat(mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer",
|
||||
sizeof(mouse->name));
|
||||
snprintf(mouse->phys, sizeof(mouse->phys), "%s/input0", serio->phys);
|
||||
|
||||
input_dev->name = mouse->name;
|
||||
input_dev->phys = mouse->phys;
|
||||
input_dev->id.bustype = BUS_RS232;
|
||||
input_dev->dev.parent = &serio->dev;
|
||||
|
||||
set_bit (EV_KEY, input_dev->evbit); /* We have buttons */
|
||||
set_bit (EV_REL, input_dev->evbit);
|
||||
set_bit (EV_ABS, input_dev->evbit);
|
||||
set_bit (BTN_LEFT, input_dev->keybit); /* We have 3 buttons */
|
||||
set_bit (BTN_MIDDLE, input_dev->keybit);
|
||||
set_bit (BTN_RIGHT, input_dev->keybit);
|
||||
set_bit (BTN_TOUCH, input_dev->keybit); /* ...and Tablet */
|
||||
set_bit (REL_X, input_dev->relbit);
|
||||
set_bit (REL_Y, input_dev->relbit);
|
||||
input_set_abs_params (input_dev, ABS_X, 0, 1023, 0, 0);
|
||||
input_set_abs_params (input_dev, ABS_Y, 0, 1023, 0, 0);
|
||||
__set_bit(EV_KEY, input_dev->evbit); /* We have buttons */
|
||||
__set_bit(EV_REL, input_dev->evbit);
|
||||
__set_bit(EV_ABS, input_dev->evbit);
|
||||
__set_bit(BTN_LEFT, input_dev->keybit); /* We have 3 buttons */
|
||||
__set_bit(BTN_MIDDLE, input_dev->keybit);
|
||||
__set_bit(BTN_RIGHT, input_dev->keybit);
|
||||
__set_bit(BTN_TOUCH, input_dev->keybit); /* ...and Tablet */
|
||||
__set_bit(REL_X, input_dev->relbit);
|
||||
__set_bit(REL_Y, input_dev->relbit);
|
||||
input_set_abs_params(input_dev, ABS_X, 0, 1023, 0, 0);
|
||||
input_set_abs_params(input_dev, ABS_Y, 0, 1023, 0, 0);
|
||||
|
||||
serio_set_drvdata (serio, mouse);
|
||||
serio_set_drvdata(serio, mouse);
|
||||
|
||||
err = serio_open (serio, drv);
|
||||
err = serio_open(serio, drv);
|
||||
if (err)
|
||||
goto fail2;
|
||||
|
||||
|
|
@ -532,18 +510,18 @@ vsxxxaa_connect (struct serio *serio, struct serio_driver *drv)
|
|||
* Request selftest. Standard packet format and differential
|
||||
* mode will be requested after the device ID'ed successfully.
|
||||
*/
|
||||
serio_write (serio, 'T'); /* Test */
|
||||
serio_write(serio, 'T'); /* Test */
|
||||
|
||||
err = input_register_device (input_dev);
|
||||
err = input_register_device(input_dev);
|
||||
if (err)
|
||||
goto fail3;
|
||||
|
||||
return 0;
|
||||
|
||||
fail3: serio_close (serio);
|
||||
fail2: serio_set_drvdata (serio, NULL);
|
||||
fail1: input_free_device (input_dev);
|
||||
kfree (mouse);
|
||||
fail3: serio_close(serio);
|
||||
fail2: serio_set_drvdata(serio, NULL);
|
||||
fail1: input_free_device(input_dev);
|
||||
kfree(mouse);
|
||||
return err;
|
||||
}
|
||||
|
||||
|
|
@ -570,18 +548,16 @@ static struct serio_driver vsxxxaa_drv = {
|
|||
.disconnect = vsxxxaa_disconnect,
|
||||
};
|
||||
|
||||
static int __init
|
||||
vsxxxaa_init (void)
|
||||
static int __init vsxxxaa_init(void)
|
||||
{
|
||||
return serio_register_driver(&vsxxxaa_drv);
|
||||
}
|
||||
|
||||
static void __exit
|
||||
vsxxxaa_exit (void)
|
||||
static void __exit vsxxxaa_exit(void)
|
||||
{
|
||||
serio_unregister_driver(&vsxxxaa_drv);
|
||||
}
|
||||
|
||||
module_init (vsxxxaa_init);
|
||||
module_exit (vsxxxaa_exit);
|
||||
module_init(vsxxxaa_init);
|
||||
module_exit(vsxxxaa_exit);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue