From 9effa978f1d51f6d0426ebabcf6cb32336bb3153 Mon Sep 17 00:00:00 2001 From: Nicolas Boichat Date: Wed, 19 Apr 2006 23:36:40 +0200 Subject: [PATCH] [PATCH] USB: MacBook Pro touchpad support Add support for MacBook touchpad in appletouch driver. Thanks to Alex Harper for the informations. Use u16 instead of int16_t in atp_is_geyser* functions. Acked-by: Johannes Berg Acked-by: Stelian Pop Signed-off-by: Nicolas Boichat Signed-off-by: Greg Kroah-Hartman --- drivers/usb/input/appletouch.c | 113 +++++++++++++++++++++++++++++++-- 1 file changed, 107 insertions(+), 6 deletions(-) diff --git a/drivers/usb/input/appletouch.c b/drivers/usb/input/appletouch.c index c222ed13de..4eff8d7a79 100644 --- a/drivers/usb/input/appletouch.c +++ b/drivers/usb/input/appletouch.c @@ -1,5 +1,5 @@ /* - * Apple USB Touchpad (for post-February 2005 PowerBooks) driver + * Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver * * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) @@ -7,6 +7,7 @@ * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) + * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) * * Thanks to Alex Harper for his inputs. * @@ -44,6 +45,11 @@ #define GEYSER_ISO_PRODUCT_ID 0x0215 #define GEYSER_JIS_PRODUCT_ID 0x0216 +/* MacBook devices */ +#define GEYSER3_ANSI_PRODUCT_ID 0x0217 +#define GEYSER3_ISO_PRODUCT_ID 0x0218 +#define GEYSER3_JIS_PRODUCT_ID 0x0219 + #define ATP_DEVICE(prod) \ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ USB_DEVICE_ID_MATCH_INT_CLASS | \ @@ -65,6 +71,10 @@ static struct usb_device_id atp_table [] = { { ATP_DEVICE(GEYSER_ISO_PRODUCT_ID) }, { ATP_DEVICE(GEYSER_JIS_PRODUCT_ID) }, + { ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) }, + { ATP_DEVICE(GEYSER3_ISO_PRODUCT_ID) }, + { ATP_DEVICE(GEYSER3_JIS_PRODUCT_ID) }, + /* Terminating entry */ { } }; @@ -101,6 +111,13 @@ MODULE_DEVICE_TABLE (usb, atp_table); */ #define ATP_THRESHOLD 5 +/* MacBook Pro (Geyser 3) initialization constants */ +#define ATP_GEYSER3_MODE_READ_REQUEST_ID 1 +#define ATP_GEYSER3_MODE_WRITE_REQUEST_ID 9 +#define ATP_GEYSER3_MODE_REQUEST_VALUE 0x300 +#define ATP_GEYSER3_MODE_REQUEST_INDEX 0 +#define ATP_GEYSER3_MODE_VENDOR_VALUE 0x04 + /* Structure to hold all of our device specific stuff */ struct atp { char phys[64]; @@ -147,13 +164,22 @@ MODULE_PARM_DESC(debug, "Activate debugging output"); /* Checks if the device a Geyser 2 (ANSI, ISO, JIS) */ static inline int atp_is_geyser_2(struct atp *dev) { - int16_t productId = le16_to_cpu(dev->udev->descriptor.idProduct); + u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct); return (productId == GEYSER_ANSI_PRODUCT_ID) || (productId == GEYSER_ISO_PRODUCT_ID) || (productId == GEYSER_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); +} + static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact, int *z, int *fingers) { @@ -219,12 +245,33 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs) /* drop incomplete datasets */ if (dev->urb->actual_length != dev->datalen) { - dprintk("appletouch: incomplete data package.\n"); + dprintk("appletouch: incomplete data package" + " (first byte: %d, length: %d).\n", + dev->data[0], dev->urb->actual_length); goto exit; } /* reorder the sensors values */ - if (atp_is_geyser_2(dev)) { + if (atp_is_geyser_3(dev)) { + memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); + + /* + * The values are laid out like this: + * -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ... + * '-' is an unused value. + */ + + /* read X values */ + for (i = 0, j = 19; i < 20; i += 2, j += 3) { + dev->xy_cur[i] = dev->data[j + 1]; + dev->xy_cur[i + 1] = dev->data[j + 2]; + } + /* read Y values */ + for (i = 0, j = 1; i < 9; i += 2, j += 3) { + 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)) { memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); /* @@ -267,6 +314,9 @@ static void atp_complete(struct urb* urb, struct pt_regs* regs) dev->x_old = dev->y_old = -1; memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old)); + if (atp_is_geyser_3(dev)) /* No 17" Macbooks (yet) */ + goto exit; + /* 17" Powerbooks have extra X sensors */ for (i = (atp_is_geyser_2(dev)?15:16); i < ATP_XSENSORS; i++) { if (!dev->xy_cur[i]) continue; @@ -414,7 +464,50 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id dev->udev = udev; dev->input = input_dev; dev->overflowwarn = 0; - dev->datalen = (atp_is_geyser_2(dev)?64:81); + if (atp_is_geyser_3(dev)) + dev->datalen = 64; + else if (atp_is_geyser_2(dev)) + dev->datalen = 64; + else + dev->datalen = 81; + + if (atp_is_geyser_3(dev)) { + /* + * By default Geyser 3 device sends standard USB HID mouse + * packets (Report ID 2). This code changes device mode, so it + * sends raw sensor reports (Report ID 5). + */ + char data[8]; + int size; + + size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + ATP_GEYSER3_MODE_READ_REQUEST_ID, + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + ATP_GEYSER3_MODE_REQUEST_VALUE, + ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000); + + if (size != 8) { + err("Could not do mode read request from device" + " (Geyser 3 mode)"); + goto err_free_devs; + } + + /* Apply the mode switch */ + data[0] = ATP_GEYSER3_MODE_VENDOR_VALUE; + + size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + ATP_GEYSER3_MODE_WRITE_REQUEST_ID, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, + ATP_GEYSER3_MODE_REQUEST_VALUE, + ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000); + + if (size != 8) { + err("Could not do mode write request to device" + " (Geyser 3 mode)"); + goto err_free_devs; + } + printk("appletouch Geyser 3 inited.\n"); + } dev->urb = usb_alloc_urb(0, GFP_KERNEL); if (!dev->urb) { @@ -447,7 +540,15 @@ static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id set_bit(EV_ABS, input_dev->evbit); - if (atp_is_geyser_2(dev)) { + if (atp_is_geyser_3(dev)) { + /* + * MacBook have 20 X sensors, 10 Y sensors + */ + input_set_abs_params(input_dev, ABS_X, 0, + ((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)) { /* * Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected * later. -- 2.39.5