freebsd-skq/sys/dev/ath/ath_hal/ar9001/ar9130reg.h
Adrian Chadd 9f25ad52ce Introduce AR9130 (HOWL) WMAC support to the FreeBSD HAL.
The AR9130 is an AR9160/AR5416 family WMAC which is glued directly
to the AR913x SoC peripheral bus (APB) rather than via a PCI/PCIe
bridge.

The specifics:

* A new build option is required to use the AR9130 - AH_SUPPORT_AR9130.
  This is needed due to the different location the RTC registers live
  with this chip; hopefully this will be undone in the future.
  This does currently mean that enabling this option will break non-AR9130
  builds, so don't enable it unless you're specifically building an image
  for the AR913x SoC.

* Add the new probe, attach, EEPROM and PLL methods specific to Howl.

* Add a work-around to ah_eeprom_v14.c which disables some of the checks
  for endian-ness and magic in the EEPROM image if an eepromdata block
  is provided. This'll be fixed at a later stage by porting the ath9k
  probe code and making sure it doesn't break in other setups (which
  my previous attempt at this did.)

* Sprinkle Howl modifications throughput the interrupt path - it doesn't
  implement the SYNC interrupt registers, so ignore those.

* Sprinkle Howl chip powerup/down throughout the reset path; the RTC methods
  were

* Sprinkle some other Howl workarounds in the reset path.

* Hard-code an alternative setup for the AR_CFG register for Howl, that
  sets up things suitable for Big-Endian MIPS (which is the only platform
  this chip is glued to.)

This has been tested on the AR913x based TP-Link WR-1043nd mode, in
legacy, HT/20 and HT/40 modes.

Caveats:

* 2ghz has only been tested. I've not seen any 5ghz radios glued to this
  chipset so I can't test it.

* AR5416_INTERRUPT_MITIGATION is not supported on the AR9130. At least,
  it isn't implemented in ath9k. Please don't enable this.

* This hasn't been tested in MBSS mode or in RX/TX block-aggregation mode.
2011-04-28 12:47:40 +00:00

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1.1 KiB
C

/*
* Copyright (c) 2010 Adrian Chadd, Xenion Pty Ltd
* Copyright (c) 2008 Sam Leffler, Errno Consulting
* Copyright (c) 2008 Atheros Communications, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $FreeBSD$
*/
#ifndef __AR9130REG_H__
#define __AR9130REG_H__
/* AR9130 shifts these registers */
#define AR_SREV_CHIP_HOWL 0x0600
#define AR_SREV_CHIP_HOWL_ID 0x00000FFF
#endif /* __AR9130REG_H__ */