While adding support for the TL-WN322G wireless usb adapter on an embedded
system I devised a patch to be applied against the 2.6.22.x kernel to make it
work.
It basically integrates support for the uw2453 chip into the zd1211rw driver
framework of mentioned kernel and fixes a few common issues associated with the
device.
Among the problems taken care of are those which are described in this mailing
list under the following subjects:
* [zd1211-devs] tp-link WN322G
* [zd1211-devs] zd1211 on asus A9RP
Cheers,
Sören
Signed-off-by: Sören Wellhöfer <soeren.wellhoe...@gmx.net>
---
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/Makefile
2.6.22.6/drivers/net/wireless/zd1211rw/Makefile
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/Makefile 2009-04-23
11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/Makefile 2009-08-04
08:56:36.000000000 +0200
@@ -2,7 +2,7 @@ obj-$(CONFIG_ZD1211RW) += zd1211rw.o
zd1211rw-objs := zd_chip.o zd_ieee80211.o \
zd_mac.o zd_netdev.o \
- zd_rf_al2230.o zd_rf_rf2959.o \
+ zd_rf_al2230.o zd_rf_rf2959.o zd_rf_uw2453.o\
zd_rf_al7230b.o \
zd_rf.o zd_usb.o zd_util.o
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_chip.h
2.6.22.6/drivers/net/wireless/zd1211rw/zd_chip.h
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_chip.h 2009-04-23
11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_chip.h 2009-08-07
16:59:54.000000000 +0200
@@ -720,6 +720,10 @@ static inline struct zd_chip *zd_usb_to_
return container_of(usb, struct zd_chip, usb);
}
+static inline int zd_chip_is_zd1211b(struct zd_chip *c) {
+ return c->is_zd1211b;
+}
+
static inline struct zd_chip *zd_rf_to_chip(struct zd_rf *rf)
{
return container_of(rf, struct zd_chip, rf);
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_ieee80211.c
2.6.22.6/drivers/net/wireless/zd1211rw/zd_ieee80211.c
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_ieee80211.c
2009-04-23 11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_ieee80211.c 2009-08-07
09:40:07.000000000 +0200
@@ -137,10 +137,14 @@ int zd_find_channel(u8 *channel, const s
{
int i, r;
u32 mhz;
+
+ printk(KERN_DEBUG "zd_find_channel(): channel=%d, freq->m=%d\n",
*channel, freq->m);
if (freq->m < 1000) {
- if (freq->m > NUM_CHANNELS || freq->m == 0)
+ if (freq->m > NUM_CHANNELS || freq->m == 0) {
+ printk(KERN_DEBUG "zd_find_channel(): failed (1)\n");
return -EINVAL;
+ }
*channel = freq->m;
return 1;
}
@@ -156,6 +160,9 @@ int zd_find_channel(u8 *channel, const s
return 1;
}
}
+
+
+ printk(KERN_DEBUG "zd_find_channel(): failed (2)\n");
return -EINVAL;
}
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_mac.c
2.6.22.6/drivers/net/wireless/zd1211rw/zd_mac.c
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_mac.c 2009-04-23
11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_mac.c 2009-08-07
09:42:46.000000000 +0200
@@ -536,9 +536,8 @@ int zd_mac_request_channel(struct zd_mac
{
unsigned long lock_flags;
struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
-
- if (ieee->iw_mode == IW_MODE_INFRA)
- return -EPERM;
+
+ printk(KERN_DEBUG "zd_mac_request_channel(): channel=%d\n", channel);
spin_lock_irqsave(&mac->lock, lock_flags);
if (!zd_regdomain_supports_channel(mac->regdomain, channel)) {
@@ -1195,6 +1194,8 @@ static void set_security(struct net_devi
}
if (sec->flags & SEC_ACTIVE_KEY) {
+
+ sec->active_key = 1;
secinfo->active_key = sec->active_key;
dev_dbg_f(zd_mac_dev(zd_netdev_mac(netdev)),
" .active_key = %d\n", sec->active_key);
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf.c
2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf.c
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf.c 2009-04-23
11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf.c 2009-08-04
15:55:05.000000000 +0200
@@ -25,7 +25,7 @@
static const char * const rfs[] = {
[0] = "unknown RF0",
- [1] = "unknown RF1",
+ [1] = "unknown RF1",
[UW2451_RF] = "UW2451_RF",
[UCHIP_RF] = "UCHIP_RF",
[AL2230_RF] = "AL2230_RF",
@@ -52,6 +52,7 @@ const char *zd_rf_name(u8 type)
void zd_rf_init(struct zd_rf *rf)
{
memset(rf, 0, sizeof(*rf));
+ rf->update_channel_int = 1;
}
void zd_rf_clear(struct zd_rf *rf)
@@ -81,6 +82,12 @@ int zd_rf_init_hw(struct zd_rf *rf, u8 t
if (r)
return r;
break;
+ case MAXIM_NEW_RF:
+ case UW2453_RF:
+ r = zd_rf_init_uw2453(rf);
+ if(r)
+ return r;
+ break;
default:
dev_err(zd_chip_dev(chip),
"RF %s %#x is not supported\n", zd_rf_name(type), type);
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf.h
2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf.h
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf.h 2009-04-23
11:36:28.000000000 +0200
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf.h 2009-08-07
17:00:18.000000000 +0200
@@ -47,6 +47,7 @@ struct zd_rf {
u8 type;
u8 channel;
+ void *priv;
/* RF-specific functions */
int (*init_hw)(struct zd_rf *rf);
@@ -54,6 +55,9 @@ struct zd_rf {
int (*switch_radio_on)(struct zd_rf *rf);
int (*switch_radio_off)(struct zd_rf *rf);
int (*patch_6m_band_edge)(struct zd_rf *rf, u8 channel);
+ void (*clear)(struct zd_rf *rf);
+
+ u8 update_channel_int:8;
};
const char *zd_rf_name(u8 type);
@@ -76,5 +80,6 @@ int zd_rf_generic_patch_6m(struct zd_rf
int zd_rf_init_rf2959(struct zd_rf *rf);
int zd_rf_init_al2230(struct zd_rf *rf);
int zd_rf_init_al7230b(struct zd_rf *rf);
+int zd_rf_init_uw2454(struct zd_rf *rf);
#endif /* _ZD_RF_H */
diff -uprN 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
--- 2.6.22.6-vanilla/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
1970-01-01 01:00:00.000000000 +0100
+++ 2.6.22.6/drivers/net/wireless/zd1211rw/zd_rf_uw2453.c 2009-08-07
17:00:05.000000000 +0200
@@ -0,0 +1,539 @@
+/* ZD1211 USB-WLAN driver for Linux
+ *
+ * Copyright (C) 2005-2007 Ulrich Kunitz <k...@deine-taler.de>
+ * Copyright (C) 2006-2007 Daniel Drake <d...@gentoo.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+
+#include "zd_rf.h"
+#include "zd_usb.h"
+#include "zd_chip.h"
+
+#define UW2453_INTR_REG ((zd_addr_t)0x85c1)
+
+/* This RF programming code is based upon the code found in v2.16.0.0 of the
+ * ZyDAS vendor driver. Unlike other RF's, Ubec publish full technical specs
+ * for this RF on their website, so we're able to understand more than
+ * usual as to what is going on. Thumbs up for Ubec for doing that. */
+
+/* The 3-wire serial interface provides access to 8 write-only registers.
+ * The data format is a 4 bit register address followed by a 20 bit value. */
+#define UW2453_REGWRITE(reg, val) ((((reg) & 0xf) << 20) | ((val) & 0xfffff))
+
+/* For channel tuning, we have to configure registers 1 (synthesizer), 2 (synth
+ * fractional divide ratio) and 3 (VCO config).
+ *
+ * We configure the RF to produce an interrupt when the PLL is locked onto
+ * the configured frequency. During initialization, we run through a variety
+ * of different VCO configurations on channel 1 until we detect a PLL lock.
+ * When this happens, we remember which VCO configuration produced the lock
+ * and use it later. Actually, we use the configuration *after* the one that
+ * produced the lock, which seems odd, but it works.
+ *
+ * If we do not see a PLL lock on any standard VCO config, we fall back on an
+ * autocal configuration, which has a fixed (as opposed to per-channel) VCO
+ * config and different synth values from the standard set (divide ratio
+ * is still shared with the standard set). */
+
+/* The per-channel synth values for all standard VCO configurations. These get
+ * written to register 1. */
+static const u8 uw2453_std_synth[] = {
+ RF_CHANNEL( 1) = 0x47,
+ RF_CHANNEL( 2) = 0x47,
+ RF_CHANNEL( 3) = 0x67,
+ RF_CHANNEL( 4) = 0x67,
+ RF_CHANNEL( 5) = 0x67,
+ RF_CHANNEL( 6) = 0x67,
+ RF_CHANNEL( 7) = 0x57,
+ RF_CHANNEL( 8) = 0x57,
+ RF_CHANNEL( 9) = 0x57,
+ RF_CHANNEL(10) = 0x57,
+ RF_CHANNEL(11) = 0x77,
+ RF_CHANNEL(12) = 0x77,
+ RF_CHANNEL(13) = 0x77,
+ RF_CHANNEL(14) = 0x4f,
+};
+
+/* This table stores the synthesizer fractional divide ratio for *all* VCO
+ * configurations (both standard and autocal). These get written to register 2.
+ */
+static const u16 uw2453_synth_divide[] = {
+ RF_CHANNEL( 1) = 0x999,
+ RF_CHANNEL( 2) = 0x99b,
+ RF_CHANNEL( 3) = 0x998,
+ RF_CHANNEL( 4) = 0x99a,
+ RF_CHANNEL( 5) = 0x999,
+ RF_CHANNEL( 6) = 0x99b,
+ RF_CHANNEL( 7) = 0x998,
+ RF_CHANNEL( 8) = 0x99a,
+ RF_CHANNEL( 9) = 0x999,
+ RF_CHANNEL(10) = 0x99b,
+ RF_CHANNEL(11) = 0x998,
+ RF_CHANNEL(12) = 0x99a,
+ RF_CHANNEL(13) = 0x999,
+ RF_CHANNEL(14) = 0xccc,
+};
+
+/* Here is the data for all the standard VCO configurations. We shrink our
+ * table a little by observing that both channels in a consecutive pair share
+ * the same value. We also observe that the high 4 bits ([0:3] in the specs)
+ * are all 'Reserved' and are always set to 0x4 - we chop them off in the data
+ * below. */
+#define CHAN_TO_PAIRIDX(a) ((a - 1) / 2)
+#define RF_CHANPAIR(a,b) [CHAN_TO_PAIRIDX(a)]
+static const u16 uw2453_std_vco_cfg[][7] = {
+ { /* table 1 */
+ RF_CHANPAIR( 1, 2) = 0x664d,
+ RF_CHANPAIR( 3, 4) = 0x604d,
+ RF_CHANPAIR( 5, 6) = 0x6675,
+ RF_CHANPAIR( 7, 8) = 0x6475,
+ RF_CHANPAIR( 9, 10) = 0x6655,
+ RF_CHANPAIR(11, 12) = 0x6455,
+ RF_CHANPAIR(13, 14) = 0x6665,
+ },
+ { /* table 2 */
+ RF_CHANPAIR( 1, 2) = 0x666d,
+ RF_CHANPAIR( 3, 4) = 0x606d,
+ RF_CHANPAIR( 5, 6) = 0x664d,
+ RF_CHANPAIR( 7, 8) = 0x644d,
+ RF_CHANPAIR( 9, 10) = 0x6675,
+ RF_CHANPAIR(11, 12) = 0x6475,
+ RF_CHANPAIR(13, 14) = 0x6655,
+ },
+ { /* table 3 */
+ RF_CHANPAIR( 1, 2) = 0x665d,
+ RF_CHANPAIR( 3, 4) = 0x605d,
+ RF_CHANPAIR( 5, 6) = 0x666d,
+ RF_CHANPAIR( 7, 8) = 0x646d,
+ RF_CHANPAIR( 9, 10) = 0x664d,
+ RF_CHANPAIR(11, 12) = 0x644d,
+ RF_CHANPAIR(13, 14) = 0x6675,
+ },
+ { /* table 4 */
+ RF_CHANPAIR( 1, 2) = 0x667d,
+ RF_CHANPAIR( 3, 4) = 0x607d,
+ RF_CHANPAIR( 5, 6) = 0x665d,
+ RF_CHANPAIR( 7, 8) = 0x645d,
+ RF_CHANPAIR( 9, 10) = 0x666d,
+ RF_CHANPAIR(11, 12) = 0x646d,
+ RF_CHANPAIR(13, 14) = 0x664d,
+ },
+ { /* table 5 */
+ RF_CHANPAIR( 1, 2) = 0x6643,
+ RF_CHANPAIR( 3, 4) = 0x6043,
+ RF_CHANPAIR( 5, 6) = 0x667d,
+ RF_CHANPAIR( 7, 8) = 0x647d,
+ RF_CHANPAIR( 9, 10) = 0x665d,
+ RF_CHANPAIR(11, 12) = 0x645d,
+ RF_CHANPAIR(13, 14) = 0x666d,
+ },
+ { /* table 6 */
+ RF_CHANPAIR( 1, 2) = 0x6663,
+ RF_CHANPAIR( 3, 4) = 0x6063,
+ RF_CHANPAIR( 5, 6) = 0x6643,
+ RF_CHANPAIR( 7, 8) = 0x6443,
+ RF_CHANPAIR( 9, 10) = 0x667d,
+ RF_CHANPAIR(11, 12) = 0x647d,
+ RF_CHANPAIR(13, 14) = 0x665d,
+ },
+ { /* table 7 */
+ RF_CHANPAIR( 1, 2) = 0x6653,
+ RF_CHANPAIR( 3, 4) = 0x6053,
+ RF_CHANPAIR( 5, 6) = 0x6663,
+ RF_CHANPAIR( 7, 8) = 0x6463,
+ RF_CHANPAIR( 9, 10) = 0x6643,
+ RF_CHANPAIR(11, 12) = 0x6443,
+ RF_CHANPAIR(13, 14) = 0x667d,
+ },
+ { /* table 8 */
+ RF_CHANPAIR( 1, 2) = 0x6673,
+ RF_CHANPAIR( 3, 4) = 0x6073,
+ RF_CHANPAIR( 5, 6) = 0x6653,
+ RF_CHANPAIR( 7, 8) = 0x6453,
+ RF_CHANPAIR( 9, 10) = 0x6663,
+ RF_CHANPAIR(11, 12) = 0x6463,
+ RF_CHANPAIR(13, 14) = 0x6643,
+ },
+ { /* table 9 */
+ RF_CHANPAIR( 1, 2) = 0x664b,
+ RF_CHANPAIR( 3, 4) = 0x604b,
+ RF_CHANPAIR( 5, 6) = 0x6673,
+ RF_CHANPAIR( 7, 8) = 0x6473,
+ RF_CHANPAIR( 9, 10) = 0x6653,
+ RF_CHANPAIR(11, 12) = 0x6453,
+ RF_CHANPAIR(13, 14) = 0x6663,
+ },
+ { /* table 10 */
+ RF_CHANPAIR( 1, 2) = 0x666b,
+ RF_CHANPAIR( 3, 4) = 0x606b,
+ RF_CHANPAIR( 5, 6) = 0x664b,
+ RF_CHANPAIR( 7, 8) = 0x644b,
+ RF_CHANPAIR( 9, 10) = 0x6673,
+ RF_CHANPAIR(11, 12) = 0x6473,
+ RF_CHANPAIR(13, 14) = 0x6653,
+ },
+ { /* table 11 */
+ RF_CHANPAIR( 1, 2) = 0x665b,
+ RF_CHANPAIR( 3, 4) = 0x605b,
+ RF_CHANPAIR( 5, 6) = 0x666b,
+ RF_CHANPAIR( 7, 8) = 0x646b,
+ RF_CHANPAIR( 9, 10) = 0x664b,
+ RF_CHANPAIR(11, 12) = 0x644b,
+ RF_CHANPAIR(13, 14) = 0x6673,
+ },
+
+};
+
+/* The per-channel synth values for autocal. These get written to register 1.
*/
+static const u16 uw2453_autocal_synth[] = {
+ RF_CHANNEL( 1) = 0x6847,
+ RF_CHANNEL( 2) = 0x6847,
+ RF_CHANNEL( 3) = 0x6867,
+ RF_CHANNEL( 4) = 0x6867,
+ RF_CHANNEL( 5) = 0x6867,
+ RF_CHANNEL( 6) = 0x6867,
+ RF_CHANNEL( 7) = 0x6857,
+ RF_CHANNEL( 8) = 0x6857,
+ RF_CHANNEL( 9) = 0x6857,
+ RF_CHANNEL(10) = 0x6857,
+ RF_CHANNEL(11) = 0x6877,
+ RF_CHANNEL(12) = 0x6877,
+ RF_CHANNEL(13) = 0x6877,
+ RF_CHANNEL(14) = 0x684f,
+};
+
+/* The VCO configuration for autocal (all channels) */
+static const u16 UW2453_AUTOCAL_VCO_CFG = 0x6662;
+
+/* TX gain settings. The array index corresponds to the TX power integration
+ * values found in the EEPROM. The values get written to register 7. */
+static u32 uw2453_txgain[] = {
+ [0x00] = 0x0e313,
+ [0x01] = 0x0fb13,
+ [0x02] = 0x0e093,
+ [0x03] = 0x0f893,
+ [0x04] = 0x0ea93,
+ [0x05] = 0x1f093,
+ [0x06] = 0x1f493,
+ [0x07] = 0x1f693,
+ [0x08] = 0x1f393,
+ [0x09] = 0x1f35b,
+ [0x0a] = 0x1e6db,
+ [0x0b] = 0x1ff3f,
+ [0x0c] = 0x1ffff,
+ [0x0d] = 0x361d7,
+ [0x0e] = 0x37fbf,
+ [0x0f] = 0x3ff8b,
+ [0x10] = 0x3ff33,
+ [0x11] = 0x3fb3f,
+ [0x12] = 0x3ffff,
+};
+
+/* RF-specific structure */
+struct uw2453_priv {
+ /* index into synth/VCO config tables where PLL lock was found
+ * -1 means autocal */
+ int config;
+};
+
+#define UW2453_PRIV(rf) ((struct uw2453_priv *) (rf)->priv)
+
+static int uw2453_synth_set_channel(struct zd_chip *chip, int channel,
+ bool autocal)
+{
+ int r;
+ int idx = channel - 1;
+ u32 val;
+
+ if (autocal)
+ val = UW2453_REGWRITE(1, uw2453_autocal_synth[idx]);
+ else
+ val = UW2453_REGWRITE(1, uw2453_std_synth[idx]);
+
+ r = zd_rfwrite_locked(chip, val, RF_RV_BITS);
+ if (r)
+ return r;
+
+ return zd_rfwrite_locked(chip,
+ UW2453_REGWRITE(2, uw2453_synth_divide[idx]), RF_RV_BITS);
+}
+
+static int uw2453_write_vco_cfg(struct zd_chip *chip, u16 value)
+{
+ /* vendor driver always sets these upper bits even though the specs say
+ * they are reserved */
+ u32 val = 0x40000 | value;
+ return zd_rfwrite_locked(chip, UW2453_REGWRITE(3, val), RF_RV_BITS);
+}
+
+static int uw2453_init_mode(struct zd_chip *chip)
+{
+ static const u32 rv[] = {
+ UW2453_REGWRITE(0, 0x25f98), /* enter IDLE mode */
+ UW2453_REGWRITE(0, 0x25f9a), /* enter CAL_VCO mode */
+ UW2453_REGWRITE(0, 0x25f94), /* enter RX/TX mode */
+ UW2453_REGWRITE(0, 0x27fd4), /* power down RSSI circuit */
+ };
+
+ return zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
+}
+
+static int uw2453_set_tx_gain_level(struct zd_chip *chip, int channel)
+{
+ u8 int_value = chip->pwr_int_values[channel - 1];
+
+ if (int_value >= ARRAY_SIZE(uw2453_txgain)) {
+ dev_dbg_f(zd_chip_dev(chip), "can't configure TX gain for "
+ "int value %x on channel %d\n", int_value, channel);
+ return 0;
+ }
+
+ return zd_rfwrite_locked(chip,
+ UW2453_REGWRITE(7, uw2453_txgain[int_value]), RF_RV_BITS);
+}
+
+static int uw2453_init_hw(struct zd_rf *rf)
+{
+ int i, r;
+ int found_config = -1;
+ u16 intr_status;
+ struct zd_chip *chip = zd_rf_to_chip(rf);
+
+ static const struct zd_ioreq16 ioreqs[] = {
+ { CR10, 0x89 }, { CR15, 0x20 },
+ { CR17, 0x28 }, /* 6112 no change */
+ { CR23, 0x38 }, { CR24, 0x20 }, { CR26, 0x93 },
+ { CR27, 0x15 }, { CR28, 0x3e }, { CR29, 0x00 },
+ { CR33, 0x28 }, { CR34, 0x30 },
+ { CR35, 0x43 }, /* 6112 3e->43 */
+ { CR41, 0x24 }, { CR44, 0x32 },
+ { CR46, 0x92 }, /* 6112 96->92 */
+ { CR47, 0x1e },
+ { CR48, 0x04 }, /* 5602 Roger */
+ { CR49, 0xfa }, { CR79, 0x58 }, { CR80, 0x30 },
+ { CR81, 0x30 }, { CR87, 0x0a }, { CR89, 0x04 },
+ { CR91, 0x00 }, { CR92, 0x0a }, { CR98, 0x8d },
+ { CR99, 0x28 }, { CR100, 0x02 },
+ { CR101, 0x09 }, /* 6112 13->1f 6220 1f->13 6407 13->9 */
+ { CR102, 0x27 },
+ { CR106, 0x1c }, /* 5d07 5112 1f->1c 6220 1c->1f 6221 1f->1c */
+ { CR107, 0x1c }, /* 6220 1c->1a 5221 1a->1c */
+ { CR109, 0x13 },
+ { CR110, 0x1f }, /* 6112 13->1f 6221 1f->13 6407 13->0x09 */
+ { CR111, 0x13 }, { CR112, 0x1f }, { CR113, 0x27 },
+ { CR114, 0x23 }, /* 6221 27->23 */
+ { CR115, 0x24 }, /* 6112 24->1c 6220 1c->24 */
+ { CR116, 0x24 }, /* 6220 1c->24 */
+ { CR117, 0xfa }, /* 6112 fa->f8 6220 f8->f4 6220 f4->fa */
+ { CR118, 0xf0 }, /* 5d07 6112 f0->f2 6220 f2->f0 */
+ { CR119, 0x1a }, /* 6112 1a->10 6220 10->14 6220 14->1a */
+ { CR120, 0x4f },
+ { CR121, 0x1f }, /* 6220 4f->1f */
+ { CR122, 0xf0 }, { CR123, 0x57 }, { CR125, 0xad },
+ { CR126, 0x6c }, { CR127, 0x03 },
+ { CR128, 0x14 }, /* 6302 12->11 */
+ { CR129, 0x12 }, /* 6301 10->0f */
+ { CR130, 0x10 }, { CR137, 0x50 }, { CR138, 0xa8 },
+ { CR144, 0xac }, { CR146, 0x20 }, { CR252, 0xff },
+ { CR253, 0xff },
+ };
+
+ static const u32 rv[] = {
+ UW2453_REGWRITE(4, 0x2b), /* configure reciever gain */
+ UW2453_REGWRITE(5, 0x19e4f), /* configure transmitter gain */
+ UW2453_REGWRITE(6, 0xf81ad), /* enable RX/TX filter tuning */
+ UW2453_REGWRITE(7, 0x3fffe), /* disable TX gain in test mode */
+
+ /* enter CAL_FIL mode, TX gain set by registers, RX gain set by
pins,
+ * RSSI circuit powered down, reduced RSSI range */
+ UW2453_REGWRITE(0, 0x25f9c), /* 5d01 cal_fil */
+
+ /* synthesizer configuration for channel 1 */
+ UW2453_REGWRITE(1, 0x47),
+ UW2453_REGWRITE(2, 0x999),
+
+ /* disable manual VCO band selection */
+ UW2453_REGWRITE(3, 0x7602),
+
+ /* enable manual VCO band selection, configure current level */
+ UW2453_REGWRITE(3, 0x46063),
+ };
+
+ r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
+ if (r)
+ return r;
+
+ r = zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
+ if (r)
+ return r;
+
+ r = uw2453_init_mode(chip);
+ if (r)
+ return r;
+
+ /* Try all standard VCO configuration settings on channel 1 */
+ for (i = 0; i < ARRAY_SIZE(uw2453_std_vco_cfg) - 1; i++) {
+ /* Configure synthesizer for channel 1 */
+ r = uw2453_synth_set_channel(chip, 1, false);
+ if (r)
+ return r;
+
+ /* Write VCO config */
+ r = uw2453_write_vco_cfg(chip, uw2453_std_vco_cfg[i][0]);
+ if (r)
+ return r;
+
+ /* ack interrupt event */
+ r = zd_iowrite16_locked(chip, 0x0f, UW2453_INTR_REG);
+ if (r)
+ return r;
+
+ /* check interrupt status */
+ r = zd_ioread16_locked(chip, &intr_status, UW2453_INTR_REG);
+ if (r)
+ return r;
+
+ if (!(intr_status & 0xf)) {
+ dev_dbg_f(zd_chip_dev(chip),
+ "PLL locked on configuration %d\n", i);
+ found_config = i;
+ break;
+ }
+ }
+
+ if (found_config == -1) {
+ /* autocal */
+ dev_dbg_f(zd_chip_dev(chip),
+ "PLL did not lock, using autocal\n");
+
+ r = uw2453_synth_set_channel(chip, 1, true);
+ if (r)
+ return r;
+
+ r = uw2453_write_vco_cfg(chip, UW2453_AUTOCAL_VCO_CFG);
+ if (r)
+ return r;
+ }
+
+ /* To match the vendor driver behaviour, we use the configuration after
+ * the one that produced a lock. */
+ UW2453_PRIV(rf)->config = found_config + 1;
+
+ return zd_iowrite16_locked(chip, 0x06, CR203);
+}
+
+static int uw2453_set_channel(struct zd_rf *rf, u8 channel)
+{
+ int r;
+ u16 vco_cfg;
+ int config = UW2453_PRIV(rf)->config;
+ bool autocal = (config == -1);
+ struct zd_chip *chip = zd_rf_to_chip(rf);
+
+ static const struct zd_ioreq16 ioreqs[] = {
+ { CR80, 0x30 }, { CR81, 0x30 }, { CR79, 0x58 },
+ { CR12, 0xf0 }, { CR77, 0x1b }, { CR78, 0x58 },
+ };
+
+ r = uw2453_synth_set_channel(chip, channel, autocal);
+ if (r)
+ return r;
+
+ if (autocal)
+ vco_cfg = UW2453_AUTOCAL_VCO_CFG;
+ else
+ vco_cfg = uw2453_std_vco_cfg[config][CHAN_TO_PAIRIDX(channel)];
+
+ r = uw2453_write_vco_cfg(chip, vco_cfg);
+ if (r)
+ return r;
+
+ r = uw2453_init_mode(chip);
+ if (r)
+ return r;
+
+ r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
+ if (r)
+ return r;
+
+ r = uw2453_set_tx_gain_level(chip, channel);
+ if (r)
+ return r;
+
+ return zd_iowrite16_locked(chip, 0x06, CR203);
+}
+
+static int uw2453_switch_radio_on(struct zd_rf *rf)
+{
+ int r;
+ struct zd_chip *chip = zd_rf_to_chip(rf);
+ struct zd_ioreq16 ioreqs[] = {
+ { CR11, 0x00 }, { CR251, 0x3f },
+ };
+
+ /* enter RXTX mode */
+ r = zd_rfwrite_locked(chip, UW2453_REGWRITE(0, 0x25f94), RF_RV_BITS);
+ if (r)
+ return r;
+
+ if (zd_chip_is_zd1211b(chip))
+ ioreqs[1].value = 0x7f;
+
+ return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
+}
+
+static int uw2453_switch_radio_off(struct zd_rf *rf)
+{
+ int r;
+ struct zd_chip *chip = zd_rf_to_chip(rf);
+ static const struct zd_ioreq16 ioreqs[] = {
+ { CR11, 0x04 }, { CR251, 0x2f },
+ };
+
+ /* enter IDLE mode */
+ /* FIXME: shouldn't we go to SLEEP? sent email to zydas */
+ r = zd_rfwrite_locked(chip, UW2453_REGWRITE(0, 0x25f90), RF_RV_BITS);
+ if (r)
+ return r;
+
+ return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
+}
+
+static void uw2453_clear(struct zd_rf *rf)
+{
+ kfree(rf->priv);
+}
+
+int zd_rf_init_uw2453(struct zd_rf *rf)
+{
+ rf->init_hw = uw2453_init_hw;
+ rf->set_channel = uw2453_set_channel;
+ rf->switch_radio_on = uw2453_switch_radio_on;
+ rf->switch_radio_off = uw2453_switch_radio_off;
+ rf->patch_6m_band_edge = zd_rf_generic_patch_6m;
+ rf->clear = uw2453_clear;
+ /* we have our own TX integration code */
+ rf->update_channel_int = 0;
+
+ rf->priv = kmalloc(sizeof(struct uw2453_priv), GFP_KERNEL);
+ if (rf->priv == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
---
--
Sören Wellhöfer
Carl-Zeiss-Gymnasium Jena / Specialised school for Math, Science, and Technology
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