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Input: appletouch - simplify touchpad type detection

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This patch simplifies type detection and removes unnecessary code.

Signed-off-by: Sven Anders <anders@anduras.de>
[jberg: don't typedef, checkpatch clean, remove useless comments, ...]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Sven Anders 2008-05-05 23:57:10 -04:00 committed by Dmitry Torokhov
parent 7dce869f12
commit e9542dff39
1 changed files with 57 additions and 107 deletions
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164
drivers/input/mouse/appletouch.c
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@ -35,79 +35,59 @@
#include <linux/module.h>
#include <linux/usb/input.h>
/* Apple has powerbooks which have the keyboard with different Product IDs */
#define APPLE_VENDOR_ID 0x05AC
/* Type of touchpad */
enum atp_touchpad_type {
ATP_FOUNTAIN,
ATP_GEYSER1,
ATP_GEYSER2,
ATP_GEYSER3,
ATP_GEYSER4
};
/* These names come from Info.plist in AppleUSBTrackpad.kext */
/* PowerBooks Feb 2005 / iBooks */
#define FOUNTAIN_ANSI_PRODUCT_ID 0x020E
#define FOUNTAIN_ISO_PRODUCT_ID 0x020F
#define FOUNTAIN_TP_ONLY_PRODUCT_ID 0x030A
#define GEYSER1_TP_ONLY_PRODUCT_ID 0x030B
/* PowerBooks Oct 2005 */
#define GEYSER2_ANSI_PRODUCT_ID 0x0214
#define GEYSER2_ISO_PRODUCT_ID 0x0215
#define GEYSER2_JIS_PRODUCT_ID 0x0216
/* MacBook devices */
#define GEYSER3_ANSI_PRODUCT_ID 0x0217
#define GEYSER3_ISO_PRODUCT_ID 0x0218
#define GEYSER3_JIS_PRODUCT_ID 0x0219
/*
* Geyser IV: same as Geyser III according to Info.plist in OSX's
* AppleUSBTrackpad.kext
* -> same IOClass (AppleUSBGrIIITrackpad), same acceleration tables
*/
#define GEYSER4_ANSI_PRODUCT_ID 0x021A
#define GEYSER4_ISO_PRODUCT_ID 0x021B
#define GEYSER4_JIS_PRODUCT_ID 0x021C
/* Macbook3,1 devices */
#define GEYSER4_HF_ANSI_PRODUCT_ID 0x0229
#define GEYSER4_HF_ISO_PRODUCT_ID 0x022A
#define GEYSER4_HF_JIS_PRODUCT_ID 0x022B
#define ATP_DEVICE(prod) \
#define ATP_DEVICE(prod, type) \
{ \
.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
USB_DEVICE_ID_MATCH_INT_CLASS | \
USB_DEVICE_ID_MATCH_INT_PROTOCOL, \
.idVendor = APPLE_VENDOR_ID, \
.idVendor = 0x05ac, /* Apple */ \
.idProduct = (prod), \
.bInterfaceClass = 0x03, \
.bInterfaceProtocol = 0x02
.bInterfaceProtocol = 0x02, \
.driver_info = ATP_ ## type, \
}
/*
* Table of devices (Product IDs) that work with this driver.
* (The names come from Info.plist in AppleUSBTrackpad.kext,
* According to Info.plist Geyser IV is the same as Geyser III.)
*/
/* table of devices that work with this driver */
static struct usb_device_id atp_table [] = {
/* PowerBooks Feb 2005, iBooks G4 */
{ ATP_DEVICE(FOUNTAIN_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(FOUNTAIN_ISO_PRODUCT_ID) },
{ ATP_DEVICE(FOUNTAIN_TP_ONLY_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER1_TP_ONLY_PRODUCT_ID) },
ATP_DEVICE(0x020e, FOUNTAIN), /* FOUNTAIN ANSI */
ATP_DEVICE(0x020f, FOUNTAIN), /* FOUNTAIN ISO */
ATP_DEVICE(0x030a, FOUNTAIN), /* FOUNTAIN TP ONLY */
ATP_DEVICE(0x030b, GEYSER1), /* GEYSER 1 TP ONLY */
/* PowerBooks Oct 2005 */
{ ATP_DEVICE(GEYSER2_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER2_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER2_JIS_PRODUCT_ID) },
ATP_DEVICE(0x0214, GEYSER2), /* GEYSER 2 ANSI */
ATP_DEVICE(0x0215, GEYSER2), /* GEYSER 2 ISO */
ATP_DEVICE(0x0216, GEYSER2), /* GEYSER 2 JIS */
/* Core Duo MacBook & MacBook Pro */
{ ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER3_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER3_JIS_PRODUCT_ID) },
ATP_DEVICE(0x0217, GEYSER3), /* GEYSER 3 ANSI */
ATP_DEVICE(0x0218, GEYSER3), /* GEYSER 3 ISO */
ATP_DEVICE(0x0219, GEYSER3), /* GEYSER 3 JIS */
/* Core2 Duo MacBook & MacBook Pro */
{ ATP_DEVICE(GEYSER4_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER4_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER4_JIS_PRODUCT_ID) },
ATP_DEVICE(0x021a, GEYSER4), /* GEYSER 4 ANSI */
ATP_DEVICE(0x021b, GEYSER4), /* GEYSER 4 ISO */
ATP_DEVICE(0x021c, GEYSER4), /* GEYSER 4 JIS */
/* Core2 Duo MacBook3,1 */
{ ATP_DEVICE(GEYSER4_HF_ANSI_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER4_HF_ISO_PRODUCT_ID) },
{ ATP_DEVICE(GEYSER4_HF_JIS_PRODUCT_ID) },
ATP_DEVICE(0x0229, GEYSER4), /* GEYSER 4 HF ANSI */
ATP_DEVICE(0x022a, GEYSER4), /* GEYSER 4 HF ISO */
ATP_DEVICE(0x022b, GEYSER4), /* GEYSER 4 HF JIS */
/* Terminating entry */
{ }
@ -132,9 +112,13 @@ MODULE_DEVICE_TABLE(usb, atp_table);
* We try to keep the touchpad aspect ratio while still doing only simple
* arithmetics.
* The factors below give coordinates like:
* 0 <= x < 960 on 12" and 15" Powerbooks
* 0 <= x < 1600 on 17" Powerbooks
* 0 <= y < 646
*
* 0 <= x < 960 on 12" and 15" Powerbooks
* 0 <= x < 1600 on 17" Powerbooks and 17" MacBook Pro
* 0 <= x < 1216 on MacBooks and 15" MacBook Pro
*
* 0 <= y < 646 on all Powerbooks
* 0 <= y < 774 on all MacBooks
*/
#define ATP_XFACT 64
#define ATP_YFACT 43
@ -159,6 +143,7 @@ struct atp {
struct urb *urb; /* usb request block */
signed char *data; /* transferred data */
struct input_dev *input; /* input dev */
enum atp_touchpad_type type; /* type of touchpad */
bool open;
bool valid; /* are the samples valid? */
bool size_detect_done;
@ -209,40 +194,6 @@ static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activate debugging output");
static inline int atp_is_fountain(struct atp *dev)
{
u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
return productId == FOUNTAIN_ANSI_PRODUCT_ID ||
productId == FOUNTAIN_ISO_PRODUCT_ID ||
productId == FOUNTAIN_TP_ONLY_PRODUCT_ID;
}
/* Checks if the device a Geyser 2 (ANSI, ISO, JIS) */
static inline int atp_is_geyser_2(struct atp *dev)
{
u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
return (productId == GEYSER2_ANSI_PRODUCT_ID) ||
(productId == GEYSER2_ISO_PRODUCT_ID) ||
(productId == GEYSER2_JIS_PRODUCT_ID);
}
static inline int atp_is_geyser_3(struct atp *dev)
{
u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct);
return (productId == GEYSER3_ANSI_PRODUCT_ID) ||
(productId == GEYSER3_ISO_PRODUCT_ID) ||
(productId == GEYSER3_JIS_PRODUCT_ID) ||
(productId == GEYSER4_ANSI_PRODUCT_ID) ||
(productId == GEYSER4_ISO_PRODUCT_ID) ||
(productId == GEYSER4_JIS_PRODUCT_ID) ||
(productId == GEYSER4_HF_ANSI_PRODUCT_ID) ||
(productId == GEYSER4_HF_ISO_PRODUCT_ID) ||
(productId == GEYSER4_HF_JIS_PRODUCT_ID);
}
/*
* By default newer Geyser devices send standard USB HID mouse
* packets (Report ID 2). This code changes device mode, so it
@ -416,7 +367,7 @@ static void atp_complete(struct urb *urb)
}
/* reorder the sensors values */
if (atp_is_geyser_3(dev)) {
if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) {
memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
/*
@ -435,7 +386,7 @@ static void atp_complete(struct urb *urb)
dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1];
dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2];
}
} else if (atp_is_geyser_2(dev)) {
} else if (dev->type == ATP_GEYSER2) {
memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
/*
@ -479,17 +430,17 @@ static void atp_complete(struct urb *urb)
memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
if (dev->size_detect_done ||
atp_is_geyser_3(dev)) /* No 17" Macbooks (yet) */
dev->type == ATP_GEYSER3) /* No 17" Macbooks (yet) */
goto exit;
/* 17" Powerbooks have extra X sensors */
for (i = (atp_is_geyser_2(dev) ? 15 : 16);
for (i = (dev->type == ATP_GEYSER2 ? 15 : 16);
i < ATP_XSENSORS; i++) {
if (!dev->xy_cur[i])
continue;
printk(KERN_INFO "appletouch: 17\" model detected.\n");
if (atp_is_geyser_2(dev))
if (dev->type == ATP_GEYSER2)
input_set_abs_params(dev->input, ABS_X, 0,
(20 - 1) *
ATP_XFACT - 1,
@ -569,7 +520,7 @@ static void atp_complete(struct urb *urb)
* several hundred times a second. Re-initialization does not
* work on Fountain touchpads.
*/
if (!atp_is_fountain(dev)) {
if (dev->type != ATP_FOUNTAIN) {
/*
* Button must not be pressed when entering suspend,
* otherwise we will never release the button.
@ -650,15 +601,14 @@ static int atp_probe(struct usb_interface *iface,
dev->udev = udev;
dev->input = input_dev;
dev->type = id->driver_info;
dev->overflow_warned = false;
if (atp_is_geyser_3(dev))
dev->datalen = 64;
else if (atp_is_geyser_2(dev))
dev->datalen = 64;
else
if (dev->type == ATP_FOUNTAIN || dev->type == ATP_GEYSER1)
dev->datalen = 81;
else
dev->datalen = 64;
if (!atp_is_fountain(dev)) {
if (dev->type != ATP_FOUNTAIN) {
/* switch to raw sensor mode */
if (atp_geyser_init(udev))
goto err_free_devs;
@ -694,7 +644,7 @@ static int atp_probe(struct usb_interface *iface,
set_bit(EV_ABS, input_dev->evbit);
if (atp_is_geyser_3(dev)) {
if (dev->type == ATP_GEYSER3 || dev->type == ATP_GEYSER4) {
/*
* MacBook have 20 X sensors, 10 Y sensors
*/
@ -702,7 +652,7 @@ static int atp_probe(struct usb_interface *iface,
((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0);
input_set_abs_params(input_dev, ABS_Y, 0,
((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0);
} else if (atp_is_geyser_2(dev)) {
} else if (dev->type == ATP_GEYSER2) {
/*
* Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected
* later.