Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / drivers / net / rtl818x / rtl8180_max2820.c

diff --git a/qemu/roms/ipxe/src/drivers/net/rtl818x/rtl8180_max2820.c b/qemu/roms/ipxe/src/drivers/net/rtl818x/rtl8180_max2820.c
new file mode 100644 (file)
index 0000000..ab380fc
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/net/rtl818x/rtl8180_max2820.c
@@ -0,0 +1,158 @@
+/*
+ * Radio tuning for Maxim max2820 on RTL8180
+ *
+ * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
+ *
+ * Modified slightly for iPXE, June 2009 by Joshua Oreman.
+ *
+ * Code from the BSD driver and the rtl8181 project have been
+ * very useful to understand certain things
+ *
+ * I want to thanks the Authors of such projects and the Ndiswrapper
+ * project Authors.
+ *
+ * A special Big Thanks also is for all people who donated me cards,
+ * making possible the creation of the original rtl8180 driver
+ * from which this code is derived!
+ *
+ * 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.
+ */
+
+#include <unistd.h>
+#include <ipxe/pci.h>
+#include <ipxe/net80211.h>
+
+#include "rtl818x.h"
+
+FILE_LICENCE(GPL2_ONLY);
+
+#define MAXIM_ANTENNA 0xb3
+
+static const u32 max2820_chan[] = {
+       12, /* CH 1 */
+       17,
+       22,
+       27,
+       32,
+       37,
+       42,
+       47,
+       52,
+       57,
+       62,
+       67,
+       72,
+       84, /* CH 14 */
+};
+
+static void write_max2820(struct net80211_device *dev, u8 addr, u32 data)
+{
+       struct rtl818x_priv *priv = dev->priv;
+       u32 phy_config;
+
+       phy_config = 0x90 + (data & 0xf);
+       phy_config <<= 16;
+       phy_config += addr;
+       phy_config <<= 8;
+       phy_config += (data >> 4) & 0xff;
+
+       /* This was originally a 32-bit write to a typecast
+          RFPinsOutput, but gcc complained about aliasing rules. -JBO */
+       rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, phy_config & 0xffff);
+       rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, phy_config >> 16);
+
+       mdelay(1);
+}
+
+static void max2820_write_phy_antenna(struct net80211_device *dev, short chan)
+{
+       struct rtl818x_priv *priv = dev->priv;
+       u8 ant;
+
+       ant = MAXIM_ANTENNA;
+       if (priv->rfparam & RF_PARAM_ANTBDEFAULT)
+               ant |= BB_ANTENNA_B;
+       if (chan == 14)
+               ant |= BB_ANTATTEN_CHAN14;
+
+       rtl818x_write_phy(dev, 0x10, ant);
+}
+
+static void max2820_rf_set_channel(struct net80211_device *dev,
+                                  struct net80211_channel *channelp)
+{
+       struct rtl818x_priv *priv = dev->priv;
+       int channel = channelp->channel_nr;
+       unsigned int chan_idx = channel - 1;
+       u32 txpw = priv->txpower[chan_idx] & 0xFF;
+       u32 chan = max2820_chan[chan_idx];
+
+       /* While philips SA2400 drive the PA bias from
+        * sa2400, for MAXIM we do this directly from BB */
+       rtl818x_write_phy(dev, 3, txpw);
+
+       max2820_write_phy_antenna(dev, channel);
+       write_max2820(dev, 3, chan);
+}
+
+static void max2820_rf_stop(struct net80211_device *dev)
+{
+       rtl818x_write_phy(dev, 3, 0x8);
+       write_max2820(dev, 1, 0);
+}
+
+
+static void max2820_rf_init(struct net80211_device *dev)
+{
+       struct rtl818x_priv *priv = dev->priv;
+
+       /* MAXIM from netbsd driver */
+       write_max2820(dev, 0, 0x007); /* test mode as indicated in datasheet */
+       write_max2820(dev, 1, 0x01e); /* enable register */
+       write_max2820(dev, 2, 0x001); /* synt register */
+
+       max2820_rf_set_channel(dev, NULL);
+
+       write_max2820(dev, 4, 0x313); /* rx register */
+
+       /* PA is driven directly by the BB, we keep the MAXIM bias
+        * at the highest value in case that setting it to lower
+        * values may introduce some further attenuation somewhere..
+        */
+       write_max2820(dev, 5, 0x00f);
+
+       /* baseband configuration */
+       rtl818x_write_phy(dev, 0, 0x88); /* sys1       */
+       rtl818x_write_phy(dev, 3, 0x08); /* txagc      */
+       rtl818x_write_phy(dev, 4, 0xf8); /* lnadet     */
+       rtl818x_write_phy(dev, 5, 0x90); /* ifagcinit  */
+       rtl818x_write_phy(dev, 6, 0x1a); /* ifagclimit */
+       rtl818x_write_phy(dev, 7, 0x64); /* ifagcdet   */
+
+       max2820_write_phy_antenna(dev, 1);
+
+       rtl818x_write_phy(dev, 0x11, 0x88); /* trl */
+
+       if (rtl818x_ioread8(priv, &priv->map->CONFIG2) &
+           RTL818X_CONFIG2_ANTENNA_DIV)
+               rtl818x_write_phy(dev, 0x12, 0xc7);
+       else
+               rtl818x_write_phy(dev, 0x12, 0x47);
+
+       rtl818x_write_phy(dev, 0x13, 0x9b);
+
+       rtl818x_write_phy(dev, 0x19, 0x0);  /* CHESTLIM */
+       rtl818x_write_phy(dev, 0x1a, 0x9f); /* CHSQLIM  */
+
+       max2820_rf_set_channel(dev, NULL);
+}
+
+struct rtl818x_rf_ops max2820_rf_ops __rtl818x_rf_driver = {
+       .name           = "Maxim max2820",
+       .id             = 4,
+       .init           = max2820_rf_init,
+       .stop           = max2820_rf_stop,
+       .set_chan       = max2820_rf_set_channel
+};