245 lines
6.3 KiB
C
245 lines
6.3 KiB
C
/*
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include "config.h"
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#include "usb.h"
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#undef USB_MOUSE_DEBUG
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#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || defined(CONFIG_USB_EHCI)
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#ifdef CONFIG_USB_MOUSE
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#ifdef USB_MOUSE_DEBUG
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#define USB_MOUSE_PRINTF(fmt,args...) board_printf(fmt ,##args)
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#else
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#define USB_MOUSE_PRINTF(fmt,args...)
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#endif
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extern void ltoa(char *buf, long n, unsigned long base);
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extern void call_mousevec(unsigned char *data, void (**mousevec)(void *));
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extern void call_ikbdvec(unsigned char code, _IOREC *iorec, void (**ikbdvec)());
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extern int asm_set_ipl(int level);
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static unsigned char *new;
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static unsigned char old[8];
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static int mouse_installed;
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extern void (**mousevec)(void *);
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extern _IOREC *iorec;
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extern void (**ikbdvec)();
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/* forward declaration */
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static int usb_mouse_probe(struct usb_device *dev, unsigned int ifnum);
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/* deregistering the mouse */
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int usb_mouse_deregister(struct usb_device *dev)
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{
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dev->irq_handle = NULL;
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if(new != NULL)
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{
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usb_free(new);
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new = NULL;
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}
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mouse_installed = 0;
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USB_MOUSE_PRINTF("USB MOUSE deregister\r\n");
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return 1;
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}
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/* registering the mouse */
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int usb_mouse_register(struct usb_device *dev)
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{
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if(!mouse_installed && (dev->devnum != -1) && (usb_mouse_probe(dev, 0) == 1))
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{ /* Ok, we found a mouse */
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USB_MOUSE_PRINTF("USB MOUSE found (USB: %d, devnum: %d)\r\n", dev->usbnum, dev->devnum);
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mouse_installed = 1;
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dev->deregister = usb_mouse_deregister;
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return 1;
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}
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/* no USB Mouse found */
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return -1;
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}
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/* search for mouse and register it if found */
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int drv_usb_mouse_init(void)
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{
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int i, j;
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if(mouse_installed)
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return -1;
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/* scan all USB Devices */
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for(j = 0; j < USB_MAX_BUS; j++)
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{
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for(i = 0; i < USB_MAX_DEVICE; i++)
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{
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struct usb_device *dev = usb_get_dev_index(i, j); /* get device */
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if(dev == NULL)
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break;
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if(usb_mouse_register(dev) > 0)
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return 1;
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}
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}
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/* no USB Mouse found */
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return -1;
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}
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/**************************************************************************
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* Low Level drivers
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*/
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static void usb_kbd_send_code(unsigned char code)
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{
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if((iorec != NULL) && (ikbdvec != NULL))
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call_ikbdvec(code, iorec, ikbdvec);
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}
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/* Interrupt service routine */
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static int usb_mouse_irq(struct usb_device *dev)
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{
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#ifdef CONFIG_USB_INTERRUPT_POLLING
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int level;
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#endif
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int i, change = 0;
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if((dev->irq_status != 0) || (dev->irq_act_len < 3) || (dev->irq_act_len > 8))
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{
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USB_MOUSE_PRINTF("USB MOUSE error %lX, len %d\r\n", dev->irq_status, dev->irq_act_len);
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return 1;
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}
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for(i = 0; i < dev->irq_act_len; i++)
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{
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if(new[i] != old[i])
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{
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change = 1;
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break;
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}
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}
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if(change)
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{
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char wheel = 0, buttons, old_buttons;
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USB_MOUSE_PRINTF("USB MOUSE len:%d %02X %02X %02X %02X %02X %02X\r\n", dev->irq_act_len, new[0], new[1], new[2], new[3], new[4], new[5]);
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#ifdef CONFIG_USB_INTERRUPT_POLLING
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level = asm_set_ipl(7); /* mask interrupts */
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#endif
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if((dev->irq_act_len >= 6) && (new[0] == 1)) /* report-ID */
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{
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buttons = new[1];
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old_buttons = old[1];
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new[0] = ((new[1] & 1) << 1) + ((new[1] & 2) >> 1) + 0xF8;
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new[1] = new[2];
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new[2] = new[3];
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wheel = new[4];
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}
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else /* boot report */
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{
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buttons = new[0];
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old_buttons = old[0];
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new[0] = ((new[0] & 1) << 1) + ((new[0] & 2) >> 1) + 0xF8;
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if(dev->irq_act_len >= 3)
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wheel = new[3];
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}
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if((buttons ^ old_buttons) & 4) /* 3rd button */
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{
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if(buttons & 4)
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{
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usb_kbd_send_code(0x72); /* ENTER */
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usb_kbd_send_code(0xF2);
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}
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}
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if(wheel != 0) /* actually like Eiffel */
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{
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#define REPEAT_WHEEL 3
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int i;
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if(wheel > 0)
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{
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for(i = 0; i < REPEAT_WHEEL; i++)
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{
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usb_kbd_send_code(0x48); /* UP */
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usb_kbd_send_code(0xC8);
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}
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}
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else
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{
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for(i = 0; i < REPEAT_WHEEL; i++)
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{
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usb_kbd_send_code(0x50); /* DOWN */
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usb_kbd_send_code(0xD0);
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}
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}
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}
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if(mousevec != NULL)
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call_mousevec(new, mousevec);
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#ifdef CONFIG_USB_INTERRUPT_POLLING
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asm_set_ipl(level);
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#endif
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old[0] = new[0];
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old[1] = new[1];
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old[2] = new[2];
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old[3] = new[3];
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old[4] = new[4];
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old[5] = new[5];
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}
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return 1; /* install IRQ Handler again */
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}
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/* probes the USB device dev for mouse type */
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static int usb_mouse_probe(struct usb_device *dev, unsigned int ifnum)
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{
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struct usb_interface_descriptor *iface;
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struct usb_endpoint_descriptor *ep;
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int pipe, maxp;
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if(dev->descriptor.bNumConfigurations != 1)
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return 0;
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iface = &dev->config.if_desc[ifnum];
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if(iface->bInterfaceClass != 3)
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return 0;
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if(iface->bInterfaceSubClass != 1)
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return 0;
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if(iface->bInterfaceProtocol != 2)
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return 0;
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if(iface->bNumEndpoints != 1)
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return 0;
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ep = &iface->ep_desc[0];
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if(!(ep->bEndpointAddress & 0x80))
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return 0;
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if((ep->bmAttributes & 3) != 3)
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return 0;
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new = (unsigned char *)usb_malloc(8);
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if(new == NULL)
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return 0;
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USB_MOUSE_PRINTF("USB MOUSE found set protocol...\r\n");
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/* ok, we found a USB Mouse, install it */
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pipe = usb_rcvintpipe(dev, ep->bEndpointAddress);
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maxp = usb_maxpacket(dev, pipe);
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// if(maxp < 6)
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// usb_set_protocol(dev, iface->bInterfaceNumber, 0); /* boot */
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// else
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usb_set_protocol(dev, iface->bInterfaceNumber, 1); /* report */
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USB_MOUSE_PRINTF("USB MOUSE found set idle...\r\n");
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usb_set_idle(dev, iface->bInterfaceNumber, 0, 0); /* report infinite */
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memset(&new[0], 0, 8);
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memset(&old[0], 0, 8);
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dev->irq_handle = usb_mouse_irq;
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USB_MOUSE_PRINTF("USB MOUSE enable interrupt pipe (maxp: %d)...\r\n", maxp);
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usb_submit_int_msg(dev, pipe, &new[0], maxp > 8 ? 8 : maxp, ep->bInterval);
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return 1;
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}
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#endif /* CONFIG_USB_MOUSE */
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#endif /* CONFIG_USB_UHCI || CONFIG_USB_OHCI || CONFIG_USB_EHCI */
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