[[TOC]]
''NOTE'':  Thanks to GPSfan for helping identify some issues we have in our patches.

= The following notes apply to the new Zipit Wireless Messenger 2 =

In compliance with the GPL, we are pleased to provide our modifications to the Linux ARM Kernel, blob bootloader, and WPA supplicant driver.

Additionally, if you would like a CD-R of our modifications you may send a written request to:

|| '''Zipit Wireless, Inc '''||
|| 200 N. Main St.[[BR]]Suite 300[[BR]]Greenville, SC 29601||
|| Attention: Customer Care - GNU/Linux Source Code Request.||

You will be charged a $25 fee for reproduction, shipping and handling costs, as allowed by the GPL. Make sure that you include a bank certified check for $25.00. Otherwise, you can download the code for free from below:

== Zipit Wireless Messenger 2 (Z2) Release ==

=== GPL Base Products ===
 * Kernel Base Source: (home page: [http://www.kernel.org/pub/linux/kernel/v2.6/ kernel.org])
   * '''2.6.21.1''' 	 ''Download below''
 * blob:  (home page: [http://sourceforge.net/projects/blob/ blob, a StrongARM boot loader])
   * '''2.0.5-pre2''' 	 ''Download below''
 * !BusyBox:  (homepage: [http://www.busybox.net/ BusyBox: The Swiss Army Knife of Embedded Linux])
   * '''1.5.1''' 	 ''Download below''
 * wpa_supplicant:  (home page: [http://hostap.epitest.fi/wpa_supplicant/ Linux WPA/WPA2/IEEE 802.1X Supplicant])
   * '''0.8.5''' 	 ''Download below''

=== Zipit Wireless Patches ===
The following patches are provided in compliance with the GPL agreement:
 * Kernel patches:  [source:trunk/linux-2.6.21.1_to_zipit2-1.0.patch]
 * blob patches:  [source:trunk/blob-2.0.5-pre2_to_zipit2-1.0.patch] (note that this includes changes from blob CVS up to 2003.09.05.07.00.00)
 * blob xscale patch:  [source:trunk/blob-xscale_to_zipit2-1.0.patch]
 * !BusyBox patches: [source:trunk/busybox-1.5.1_to_zipit2-1.0.patch]
 * wpa_supplicant patches: [source:trunk/wpa_supplicant-0.5.8_to_zipit2-1.0.patch]

=== Wireless Patches ===
At this time, the source code for the Marvell wireless drivers is not provided as GPL code, and cannot be posted on this site.  If you acquire a license for this code, please contact us a '''linux'''at'''zipitwireless.com''' to discuss individual releases.

The base drivers were developed as an SPI device from the drivers.  Here is '''a''' driver that Marvell posts, but not the one we were provided:  [http://www.marvell.com/drivers/driverDisplay.do?dId=178&pId=38 Marvell SD-8686 WLAN device driver].  We are in active negotiations to provide something to the community.

=== Audio Register Setup ===
To configure the audio, the following register setups need to be send via I^2^C to the audio codec.  The address of the codec is '''cucAddress''' and the register setup is contained in '''sRegMap'''.  Please use the attached code as an example of the method:

{{{
const unsigned char cucAddress = 0x36;
const sRegMap sInitRegs[] = 
{
	{ 0x0F, 0x0000 },			// Reset

	{ 0x07, 0x0001 },			// Left justified NOT I2S

	{ 0x02, 0x0000 },			// LOUT1 Mute
	{ 0x03, 0x0100 },			// ROUT1 Mute
	{ 0x28, 0x0000 },			// LOUT2 Mute
	{ 0x29, 0x0100 },			// ROUT2 Mute

	{ 0x15, 0x0000 },			// Mute the ADC's
	{ 0x16, 0x0100 },			// Mute the ADC's

	{ 0x19, 0x00C2 },			// Turn on power
	{ 0x1A, 0x01F8 },			// More Power
	{ 0x18, 0x0010 },			// Invert ROUT2

	{ 0x22, 0x0150 },			// Left DAC to Left Mixer
	{ 0x25, 0x0150 },			// Right DAC to Right Mixer

	{ 0x05, 0x0000 },			// Unmute DAC

	{ 0x00, 0x0000 }
};

Initialize()
{
 int i = 0;
 while(sInitRegs[i].ucReg)
 {
  WriteRegister(sInitRegs[i].ucReg, sInitRegs[i].usData);
  i++;;
 }
}
 
WriteRegister(unsigned char ucReg, unsigned short usData)
{
 bool bRet = true;
 unsigned char ucBuffer[2];
 
 ucBuffer[0] = (ucReg << 1) | ((usData >> 8) & 0x01);
 ucBuffer[1] = (unsigned char) usData;
 
  bRet = pI2CBus->SendData(cucAddress, ucBuffer, 2);               

 return bRet;
}
}}}

== Subversion Access ==
The subversion repositories are available for anonymous access at:
 * !http://linux.zipitwireless.com/svn/z2kernel
To check out:
 * svn co !http://linux.zipitwireless.com/svn/z2kernel

Write access is granted to registered members

== Slimer kernel patch ==
The patch should have exact same functionality like the original one. It just removes commented out lines and debug prints. Patch is below.