/* ZD1211 USB-WLAN driver for Linux
*
* Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
* Copyright (C) 2006-2007 Daniel Drake <dsd@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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include "zd_rf.h"
#include "zd_usb.h"
#include "zd_chip.h"
static const u32 rf2959_table[][2] = {
RF_CHANNEL( 1) = { 0x181979, 0x1e6666 },
RF_CHANNEL( 2) = { 0x181989, 0x1e6666 },
RF_CHANNEL( 3) = { 0x181999, 0x1e6666 },
RF_CHANNEL( 4) = { 0x1819a9, 0x1e6666 },
RF_CHANNEL( 5) = { 0x1819b9, 0x1e6666 },
RF_CHANNEL( 6) = { 0x1819c9, 0x1e6666 },
RF_CHANNEL( 7) = { 0x1819d9, 0x1e6666 },
RF_CHANNEL( 8) = { 0x1819e9, 0x1e6666 },
RF_CHANNEL( 9) = { 0x1819f9, 0x1e6666 },
RF_CHANNEL(10) = { 0x181a09, 0x1e6666 },
RF_CHANNEL(11) = { 0x181a19, 0x1e6666 },
RF_CHANNEL(12) = { 0x181a29, 0x1e6666 },
RF_CHANNEL(13) = { 0x181a39, 0x1e6666 },
RF_CHANNEL(14) = { 0x181a60, 0x1c0000 },
};
#if 0
static int bits(u32 rw, int from, int to)
{
rw &= ~(0xffffffffU << (to+1));
rw >>= from;
return rw;
}
static int bit(u32 rw, int bit)
{
return bits(rw, bit, bit);
}
static void dump_regwrite(u32 rw)
{
int reg = bits(rw, 18, 22);
int rw_flag = bits(rw, 23, 23);
PDEBUG("rf2959 %#010x reg %d rw %d", rw, reg, rw_flag);
switch (reg) {
case 0:
PDEBUG("reg0 CFG1 ref_sel %d hybernate %d rf_vco_reg_en %d"
" if_vco_reg_en %d if_vga_en %d",
bits(rw, 14, 15), bit(rw, 3), bit(rw, 2), bit(rw, 1),
bit(rw, 0));
break;
case 1:
PDEBUG("reg1 IFPLL1 pll_en1 %d kv_en1 %d vtc_en1 %d lpf1 %d"
" cpl1 %d pdp1 %d autocal_en1 %d ld_en1 %d ifloopr %d"
" ifloopc %d dac1 %d",
bit(rw, 17), bit(rw, 16), bit(rw, 15), bit(rw, 14),
bit(rw, 13), bit(rw, 12), bit(rw, 11), bit(rw, 10),
bits(rw, 7, 9), bits(rw, 4, 6), bits(rw, 0, 3));
break;
case 2:
PDEBUG("reg2 IFPLL2 n1 %d num1 %d",
bits(rw, 6, 17), bits(rw, 0, 5));
break;
case 3:
PDEBUG("reg3 IFPLL3 num %d", bits(rw, 0, 17));
break;
case 4:
PDEBUG("reg4 IFPLL4 dn1 %#04x ct_def1 %d kv_def1 %d",
bits(rw, 8, 16), bits(rw, 4, 7), bits(rw, 0, 3));
break;
case 5:
PDEBUG("reg5 RFPLL1 pll_en %d kv_en %d vtc_en %d lpf %d cpl %d"
" pdp %d autocal_en %d ld_en %d rfloopr %d rfloopc %d"
" dac %d",
bit(rw, 17), bit(rw, 16), bit(rw, 15), bit(rw, 14),
bit(rw, 13), bit(rw, 12), bit(rw, 11), bit(rw, 10),
bits(rw, 7, 9), bits(rw, 4, 6), bits(rw, 0,3));
break;
case 6:
PDEBUG("reg6 RFPLL2 n %d num %d",
bits(rw, 6, 17), bits(rw, 0, 5));
break;
case 7:
PDEBUG("reg7 RFPLL3 num2 %d", bits(rw, 0, 17));
break;
case 8:
PDEBUG("reg8 RFPLL4 dn %#06x ct_def %d kv_def %d",
bits(rw, 8, 16), bits(rw, 4, 7), bits(rw, 0, 3));
break;
case 9:
PDEBUG("reg9 CAL1 tvco %d tlock %d m_ct_value %d ld_window %d",
bits(rw, 13, 17), bits(rw, 8, 12), bits(rw, 3, 7),
bits(rw, 0, 2));
break;
case 10:
PDEBUG("reg10 TXRX1 rxdcfbbyps %d pcontrol %d txvgc %d"
" rxlpfbw %d txlpfbw %d txdiffmode %d txenmode %d"
" intbiasen %d tybypass %d",
bit(rw, 17), bits(rw, 15, 16), bits(rw, 10, 14),
bits(rw, 7, 9), bits(rw, 4, 6), bit(rw, 3), bit(rw, 2),
bit(rw, 1), bit(rw, 0));
break;
case 11:
PDEBUG("reg11 PCNT1 mid_bias %d p_desired %d pc_offset %d"
" tx_delay %d",
bits(rw, 15, 17), bits(rw, 9, 14), bits(rw, 3, 8),
bits(rw, 0, 2));
break;
case 12:
PDEBUG("reg12 PCNT2 max_power %d mid_power %d min_power %d",
bits(rw, 12, 17), bits(rw, 6, 11), bits(rw, 0, 5));
break;
case 13:
PDEBUG("reg13 VCOT1 rfpll vco comp %d ifpll vco comp %d"
" lobias %d if_biasbuf %d if_biasvco %d rf_biasbuf %d"
" rf_biasvco %d",
bit(rw, 17), bit(rw, 16), bit(rw, 15),
bits(rw, 8, 9), bits(rw, 5, 7), bits(rw, 3, 4),
bits(rw, 0, 2));
break;
case 14:
PDEBUG("reg14 IQCAL rx_acal %d rx_pcal %d"
" tx_acal %d tx_pcal %d",
bits(rw, 13, 17), bits(rw, 9, 12), bits(rw, 4, 8),
bits(rw, 0, 3));
break;
}
}
#endif /* 0 */
static int rf2959_init_hw(struct zd_rf *rf)
{
int r;
struct zd_chip *chip = zd_rf_to_chip(rf);
static const struct zd_ioreq16 ioreqs[] = {
{ ZD_CR2, 0x1E }, { ZD_CR9, 0x20 }, { ZD_CR10, 0x89 },
{ ZD_CR11, 0x00 }, { ZD_CR15, 0xD0 }, { ZD_CR17, 0x68 },
{ ZD_CR19, 0x4a }, { ZD_CR20, 0x0c }, { ZD_CR21, 0x0E },
{ ZD_CR23, 0x48 },
/* normal size for cca threshold */
{ ZD_CR24, 0x14 },
/* { ZD_CR24, 0x20 }, */
{ ZD_CR26, 0x90 }, { ZD_CR27, 0x30 }, { ZD_CR29, 0x20 },
{ ZD_CR31, 0xb2 }, { ZD_CR32, 0x43 }, { ZD_CR33, 0x28 },
{ ZD_CR38, 0x30 }, { ZD_CR34, 0x0f }, { ZD_CR35, 0xF0 },
{ ZD_CR41, 0x2a }, { ZD_CR46, 0x7F }, { ZD_CR47, 0x1E },
{ ZD_CR51, 0xc5 }, { ZD_CR52, 0xc5 }, { ZD_CR53, 0xc5 },
{ ZD_CR79, 0x58 }, { ZD_CR80, 0x30 }, { ZD_CR81, 0x30 },
{ ZD_CR82, 0x00 }, { ZD_CR83, 0x24 }, { ZD_CR84, 0x04 },
{ ZD_CR85, 0x00 }, { ZD_CR86, 0x10 }, { ZD_CR87, 0x2A },
{ ZD_CR88, 0x10 }, { ZD_CR89, 0x24 }, { ZD_CR90, 0x18 },
/* { ZD_CR91, 0x18 }, */
/* should solve continuous CTS frame problems */
{ ZD_CR91, 0x00 },
{ ZD_CR92, 0x0a }, { ZD_CR93, 0x00 }, { ZD_CR94, 0x01 },
{ ZD_CR95, 0x00 }, { ZD_CR96, 0x40 }, { ZD_CR97, 0x37 },
{ ZD_CR98, 0x05 }, { ZD_CR99, 0x28 }, { ZD_CR100, 0x00 },
{ ZD_CR101, 0x13 }, { ZD_CR102, 0x27 }, { ZD_CR103, 0x27 },
{ ZD_CR104, 0x18 }, { ZD_CR105, 0x12 },
/* normal size */
{ ZD_CR106, 0x1a },
/* { ZD_CR106, 0x22 }, */
{ ZD_CR107, 0x24 }, { ZD_CR108, 0x0a }, { ZD_CR109, 0x13 },
{ ZD_CR110, 0x2F }, { ZD_CR111, 0x27 }, { ZD_CR112, 0x27 },
{ ZD_CR113, 0x27 }, { ZD_CR114, 0x27 }, { ZD_CR115, 0x40 },
{ ZD_CR116, 0x40 }, { ZD_CR117, 0xF0 }, { ZD_CR118, 0xF0 },
{ ZD_CR119, 0x16 },
/* no TX continuation */
{ ZD_CR122, 0x00 },
/* { ZD_CR122, 0xff }, */
{ ZD_CR127, 0x03 }, { ZD_CR131, 0x08 }, { ZD_CR138, 0x28 },
{ ZD_CR148, 0x44 }, { ZD_CR150, 0x10 }, { ZD_CR169, 0xBB },
{ ZD_CR170, 0xBB },
};
static const u32 rv[] = {
0x000007, /* REG0(CFG1) */
0x07dd43, /* REG1(IFPLL1) */
0x080959, /* REG2(IFPLL2) */
0x0e6666,
0x116a57, /* REG4 */
0x17dd43, /* REG5 */
0x1819f9, /* REG6 */
0x1e6666,
0x214554,
0x25e7fa,
0x27fffa,
/* The Zydas driver somehow forgets to set this value. It's
* only set for Japan. We are using internal power control
* for now.
*/
0x294128, /* internal power */
/* 0x28252c, */ /* External control TX power */
/* ZD_CR31_CCK, ZD_CR51_6-36M, ZD_CR52_48M, ZD_CR53_54M */
0x2c0000,
0x300000,
0x340000, /* REG13(0xD) */
0x381e0f, /* REG14(0xE) */
/* Bogus, RF2959's data sheet doesn't know register 27, which is
* actually referenced here. The commented 0x11 is 17.
*/
0x6c180f, /* REG27(0x11) */
};
r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
if (r)
return r;
return zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
}
static int rf2959_set_channel(struct zd_rf *rf, u8 channel)
{
int i, r;
const u32 *rv = rf2959_table[channel-1];
struct zd_chip *chip = zd_rf_to_chip(rf);
for (i = 0; i < 2; i++) {
r = zd_rfwrite_locked(chip, rv[i], RF_RV_BITS);
if (r)
return r;
}
return 0;
}
static int rf2959_switch_radio_on(struct zd_rf *rf)
{
static const struct zd_ioreq16 ioreqs[] = {
{ ZD_CR10, 0x89 },
{ ZD_CR11, 0x00 },
};
struct zd_chip *chip = zd_rf_to_chip(rf);
return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
}
static int rf2959_switch_radio_off(struct zd_rf *rf)
{
static const struct zd_ioreq16 ioreqs[] = {
{ ZD_CR10, 0x15 },
{ ZD_CR11, 0x81 },
};
struct zd_chip *chip = zd_rf_to_chip(rf);
return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
}
int zd_rf_init_rf2959(struct zd_rf *rf)
{
struct zd_chip *chip = zd_rf_to_chip(rf);
if (zd_chip_is_zd1211b(chip)) {
dev_err(zd_chip_dev(chip),
"RF2959 is currently not supported for ZD1211B"
" devices\n");
return -ENODEV;
}
rf->init_hw = rf2959_init_hw;
rf->set_channel = rf2959_set_channel;
rf->switch_radio_on = rf2959_switch_radio_on;
rf->switch_radio_off = rf2959_switch_radio_off;
return 0;
}