Supported Chips

brcmsmac (PCIe)
Name	PCI Device ID
BCM4313	0x4727
BCM43224	0x4353
BCM43225	0x4357

Support for the following chips: ===============================

brcmsmac (PCIe) Name Device ID BCM4313 0x4727 BCM43224 0x4353 BCM43225 0x4357 brcmfmac (SDIO) Name BCM4329

Both brcmsmac and brcmfmac drivers require firmware files that need to be separately downloaded. Firmware is available from the Linux firmware repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git
http://git.kernel.org/?p=linux/kernel/git/dwmw2/linux-firmware.git https://git.kernel.org/?p=linux/kernel/git/dwmw2/linux-firmware.git

===============================================================

Broadcom brcmsmac driver

=============================================================== - Support for both 32 and 64 bit Linux kernels

Firmware installation

====================== Copy brcm/bcm43xx-0.fw and brcm/bcm43xx_hdr-0.fw to /lib/firmware/brcm (or wherever firmware is normally installed on your system).

===============================================================

Broadcom brcmfmac driver

=============================================================== - Support for 32 bit Linux kernel, 64 bit untested

Firmware installation

====================== Copy brcm/bcm4329-fullmac-4.bin and brcm/bcm4329-fullmac-4.txt to /lib/firmware/brcm (or wherever firmware is normally installed on your system).

Contact Info: ============= Brett Rudley brudley@broadcom.com Henry Ptasinski henryp@broadcom.com Dowan Kim dowan@broadcom.com Roland Vossen rvossen@broadcom.com Arend van Spriel arend@broadcom.com

================================================================= Developer information =================================================================

Overview

On-chip firmware loaded using standard request_firmware()
Uses minstrel_ht rate algorithm
HW based encryption not enabled yet
Infrastructure for future chips in place.
AMPDU support
many software, ucode and phy/radio counters available.

fullmac driver specifics

Integration with cfg80211 stack
Most of Mac functionality is performed in dongle

Get the code

The driver is currently available in staging-next branch of the staging tree, available at:

git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6.git

The driver is also available in the 2.6.38 kernel. When using 'make menuconfig' it can be accessed:

Location: -> Device Drivers

-> Staging drivers
- -> Exclude Staging drivers from being built
  - -> Broadcom IEEE802.11n WLAN drivers
    - -> Broadcom IEEE802.11n driver style

Regulatory Implementation

This generation of chips contain additional regulatory support independent of the driver. The devices use a single worldwide regulatory domain, with channels 12-14 (2.4 GHz band) and channels 52-64 and 100-140 (5 GHz band) restricted to passive operation. Transmission on those channels is suppressed until appropriate other traffic is observed on those channels. Within the driver, we use the ficticious country code "X2" to represent this worldwide regulatory domain. There is currently no interface to configure a different domain. The driver reads the SROM country code from the chip and hands it up to mac80211 as the regulatory hint, however this information is otherwise unused with the driver.

Things to be done before getting into mainline

See the TODO file

To be done once softmac driver is in mainline

Add support for
- RFKill
- 40MHz channels
- powersave
- debugfs (for accessing counters and other diagnostic info)
- monitor mode
- IBSS
- AP
- LED support
- HW-based encryption
- Add support for new chips (obviously an ongoing item).

To be done once fullmac driver is in mainline

Add support for
- RFKill
- debugfs (for accessing counters and other diagnostic info)
- monitor mode
- Add support for new chips (obviously an ongoing item).