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Diffstat (limited to 'include/linux/uwb/whci.h')
| -rw-r--r-- | include/linux/uwb/whci.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/linux/uwb/whci.h b/include/linux/uwb/whci.h new file mode 100644 index 000000000000..915ec23042d4 --- /dev/null +++ b/include/linux/uwb/whci.h @@ -0,0 +1,117 @@ +/* + * Wireless Host Controller Interface for Ultra-Wide-Band and Wireless USB + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * + * References: + * [WHCI] Wireless Host Controller Interface Specification for + * Certified Wireless Universal Serial Bus, revision 0.95. + */ +#ifndef _LINUX_UWB_WHCI_H_ +#define _LINUX_UWB_WHCI_H_ + +#include <linux/pci.h> + +/* + * UWB interface capability registers (offsets from UWBBASE) + * + * [WHCI] section 2.2 + */ +#define UWBCAPINFO 0x00 /* == UWBCAPDATA(0) */ +# define UWBCAPINFO_TO_N_CAPS(c) (((c) >> 0) & 0xFull) +#define UWBCAPDATA(n) (8*(n)) +# define UWBCAPDATA_TO_VERSION(c) (((c) >> 32) & 0xFFFFull) +# define UWBCAPDATA_TO_OFFSET(c) (((c) >> 18) & 0x3FFFull) +# define UWBCAPDATA_TO_BAR(c) (((c) >> 16) & 0x3ull) +# define UWBCAPDATA_TO_SIZE(c) ((((c) >> 8) & 0xFFull) * sizeof(u32)) +# define UWBCAPDATA_TO_CAP_ID(c) (((c) >> 0) & 0xFFull) + +/* Size of the WHCI capability data (including the RC capability) for + a device with n capabilities. */ +#define UWBCAPDATA_SIZE(n) (8 + 8*(n)) + + +/* + * URC registers (offsets from URCBASE) + * + * [WHCI] section 2.3 + */ +#define URCCMD 0x00 +# define URCCMD_RESET (1 << 31) /* UMC Hardware reset */ +# define URCCMD_RS (1 << 30) /* Run/Stop */ +# define URCCMD_EARV (1 << 29) /* Event Address Register Valid */ +# define URCCMD_ACTIVE (1 << 15) /* Command is active */ +# define URCCMD_IWR (1 << 14) /* Interrupt When Ready */ +# define URCCMD_SIZE_MASK 0x00000fff /* Command size mask */ +#define URCSTS 0x04 +# define URCSTS_EPS (1 << 17) /* Event Processing Status */ +# define URCSTS_HALTED (1 << 16) /* RC halted */ +# define URCSTS_HSE (1 << 10) /* Host System Error...fried */ +# define URCSTS_ER (1 << 9) /* Event Ready */ +# define URCSTS_RCI (1 << 8) /* Ready for Command Interrupt */ +# define URCSTS_INT_MASK 0x00000700 /* URC interrupt sources */ +# define URCSTS_ISI 0x000000ff /* Interrupt Source Identification */ +#define URCINTR 0x08 +# define URCINTR_EN_ALL 0x000007ff /* Enable all interrupt sources */ +#define URCCMDADDR 0x10 +#define URCEVTADDR 0x18 +# define URCEVTADDR_OFFSET_MASK 0xfff /* Event pointer offset mask */ + + +/** Write 32 bit @value to little endian register at @addr */ +static inline +void le_writel(u32 value, void __iomem *addr) +{ + iowrite32(value, addr); +} + + +/** Read from 32 bit little endian register at @addr */ +static inline +u32 le_readl(void __iomem *addr) +{ + return ioread32(addr); +} + + +/** Write 64 bit @value to little endian register at @addr */ +static inline +void le_writeq(u64 value, void __iomem *addr) +{ + iowrite32(value, addr); + iowrite32(value >> 32, addr + 4); +} + + +/** Read from 64 bit little endian register at @addr */ +static inline +u64 le_readq(void __iomem *addr) +{ + u64 value; + value = ioread32(addr); + value |= (u64)ioread32(addr + 4) << 32; + return value; +} + +extern int whci_wait_for(struct device *dev, u32 __iomem *reg, + u32 mask, u32 result, + unsigned long max_ms, const char *tag); + +#endif /* #ifndef _LINUX_UWB_WHCI_H_ */ |