diff options
Diffstat (limited to 'payloads/libpayload/drivers/usb/uhci.h')
| -rw-r--r-- | payloads/libpayload/drivers/usb/uhci.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/usb/uhci.h b/payloads/libpayload/drivers/usb/uhci.h new file mode 100644 index 0000000000..f5727c4e61 --- /dev/null +++ b/payloads/libpayload/drivers/usb/uhci.h @@ -0,0 +1,124 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __UHCI_H +#define __UHCI_H + +#include <pci.h> +#include "usb.h" + +typedef union { + struct { + unsigned long terminate:1; + unsigned long queue_head:1; + unsigned long:2; + unsigned long ptr_part:28; + }; + u32 ptr; +} __attribute__ ((packed)) flistp_t; + +typedef struct { + union { + struct { + unsigned long terminate:1; + unsigned long queue_head:1; + unsigned long depth_first:1; + unsigned long:29; + } __attribute__ ((packed)); + u32 ptr; + } __attribute__ ((packed)); + + volatile unsigned long actlen:11; + volatile unsigned long:5; + union { + struct { + unsigned long:1; // bit 0 + unsigned long status_bitstuff_err:1; + unsigned long status_crc_err:1; + unsigned long status_nakrcvd:1; + unsigned long status_babble:1; + unsigned long status_databuf_err:1; + unsigned long status_stalled:1; + unsigned long status_active:1; // bit 7 + } __attribute__ ((packed)); + unsigned char status; + } __attribute__ ((packed)); + volatile unsigned long ioc:1; /* interrupt on complete */ + volatile unsigned long isochronous:1; + volatile unsigned long lowspeed:1; + volatile unsigned long counter:2; + volatile unsigned long shortpck:1; + volatile unsigned long:2; + + unsigned long pid:8; + unsigned long dev_addr:7; + unsigned long endp:4; + unsigned long data_toggle:1; + unsigned long:1; + unsigned long maxlen:11; + + u32 bufptr; + +} __attribute__ ((packed)) + td_t; + + typedef struct { + flistp_t headlinkptr; + volatile flistp_t elementlinkptr; + } __attribute__ ((packed)) + qh_t; + + typedef enum { USBCMD = 0, USBSTS = 2, USBINTR = 4, FRNUM = + 6, FLBASEADD = 8, SOFMOD = 0xc, PORTSC1 = 0x10, PORTSC2 = + 0x12 + } usbreg; + + void uhci_reg_write32 (hci_t *ctrl, usbreg reg, u32 value); + u32 uhci_reg_read32 (hci_t *ctrl, usbreg reg); + void uhci_reg_write16 (hci_t *ctrl, usbreg reg, u16 value); + u16 uhci_reg_read16 (hci_t *ctrl, usbreg reg); + void uhci_reg_write8 (hci_t *ctrl, usbreg reg, u8 value); + u8 uhci_reg_read8 (hci_t *ctrl, usbreg reg); + void uhci_reg_mask32 (hci_t *ctrl, usbreg reg, u32 andmask, u32 ormask); + void uhci_reg_mask16 (hci_t *ctrl, usbreg reg, u16 andmask, u16 ormask); + void uhci_reg_mask8 (hci_t *ctrl, usbreg reg, u8 andmask, u8 ormask); + + typedef struct uhci { + flistp_t *framelistptr; + qh_t *qh_intr, *qh_data, *qh_last; + usbdev_t *roothub; + } uhci_t; + +#define UHCI_INST(controller) ((uhci_t*)((controller)->instance)) + + hci_t *uhci_init (pcidev_t addr); + + void uhci_rh_init (usbdev_t *dev); + +#endif |