+++ /dev/null
-/*
-
- Broadcom B43 wireless driver
-
- Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
- Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
- Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
-
- 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; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
-*/
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/types.h>
-#include <linux/bitrev.h>
-
-#include "b43.h"
-#include "phy.h"
-#include "nphy.h"
-#include "main.h"
-#include "tables.h"
-#include "lo.h"
-#include "wa.h"
-
-
-static void b43_shm_clear_tssi(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
-
- switch (phy->type) {
- case B43_PHYTYPE_A:
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0068, 0x7F7F);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x006a, 0x7F7F);
- break;
- case B43_PHYTYPE_B:
- case B43_PHYTYPE_G:
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
- break;
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/EstimatePowerOut
- * This function converts a TSSI value to dBm in Q5.2
- */
-static s8 b43_phy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
-{
- struct b43_phy *phy = &dev->phy;
- s8 dbm = 0;
- s32 tmp;
-
- tmp = (phy->tgt_idle_tssi - phy->cur_idle_tssi + tssi);
-
- switch (phy->type) {
- case B43_PHYTYPE_A:
- tmp += 0x80;
- tmp = clamp_val(tmp, 0x00, 0xFF);
- dbm = phy->tssi2dbm[tmp];
- //TODO: There's a FIXME on the specs
- break;
- case B43_PHYTYPE_B:
- case B43_PHYTYPE_G:
- tmp = clamp_val(tmp, 0x00, 0x3F);
- dbm = phy->tssi2dbm[tmp];
- break;
- default:
- B43_WARN_ON(1);
- }
-
- return dbm;
-}
-
-void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
- int *_bbatt, int *_rfatt)
-{
- int rfatt = *_rfatt;
- int bbatt = *_bbatt;
- struct b43_txpower_lo_control *lo = dev->phy.lo_control;
-
- /* Get baseband and radio attenuation values into their permitted ranges.
- * Radio attenuation affects power level 4 times as much as baseband. */
-
- /* Range constants */
- const int rf_min = lo->rfatt_list.min_val;
- const int rf_max = lo->rfatt_list.max_val;
- const int bb_min = lo->bbatt_list.min_val;
- const int bb_max = lo->bbatt_list.max_val;
-
- while (1) {
- if (rfatt > rf_max && bbatt > bb_max - 4)
- break; /* Can not get it into ranges */
- if (rfatt < rf_min && bbatt < bb_min + 4)
- break; /* Can not get it into ranges */
- if (bbatt > bb_max && rfatt > rf_max - 1)
- break; /* Can not get it into ranges */
- if (bbatt < bb_min && rfatt < rf_min + 1)
- break; /* Can not get it into ranges */
-
- if (bbatt > bb_max) {
- bbatt -= 4;
- rfatt += 1;
- continue;
- }
- if (bbatt < bb_min) {
- bbatt += 4;
- rfatt -= 1;
- continue;
- }
- if (rfatt > rf_max) {
- rfatt -= 1;
- bbatt += 4;
- continue;
- }
- if (rfatt < rf_min) {
- rfatt += 1;
- bbatt -= 4;
- continue;
- }
- break;
- }
-
- *_rfatt = clamp_val(rfatt, rf_min, rf_max);
- *_bbatt = clamp_val(bbatt, bb_min, bb_max);
-}
-
-/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
-void b43_phy_xmitpower(struct b43_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct b43_phy *phy = &dev->phy;
-
- if (phy->cur_idle_tssi == 0)
- return;
- if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
- (bus->boardinfo.type == SSB_BOARD_BU4306))
- return;
-#ifdef CONFIG_B43_DEBUG
- if (phy->manual_txpower_control)
- return;
-#endif
-
- switch (phy->type) {
- case B43_PHYTYPE_A:{
-
- //TODO: Nothing for A PHYs yet :-/
-
- break;
- }
- case B43_PHYTYPE_B:
- case B43_PHYTYPE_G:{
- u16 tmp;
- s8 v0, v1, v2, v3;
- s8 average;
- int max_pwr;
- int desired_pwr, estimated_pwr, pwr_adjust;
- int rfatt_delta, bbatt_delta;
- int rfatt, bbatt;
- u8 tx_control;
-
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0058);
- v0 = (s8) (tmp & 0x00FF);
- v1 = (s8) ((tmp & 0xFF00) >> 8);
- tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x005A);
- v2 = (s8) (tmp & 0x00FF);
- v3 = (s8) ((tmp & 0xFF00) >> 8);
- tmp = 0;
-
- if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F
- || v3 == 0x7F) {
- tmp =
- b43_shm_read16(dev, B43_SHM_SHARED, 0x0070);
- v0 = (s8) (tmp & 0x00FF);
- v1 = (s8) ((tmp & 0xFF00) >> 8);
- tmp =
- b43_shm_read16(dev, B43_SHM_SHARED, 0x0072);
- v2 = (s8) (tmp & 0x00FF);
- v3 = (s8) ((tmp & 0xFF00) >> 8);
- if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F
- || v3 == 0x7F)
- return;
- v0 = (v0 + 0x20) & 0x3F;
- v1 = (v1 + 0x20) & 0x3F;
- v2 = (v2 + 0x20) & 0x3F;
- v3 = (v3 + 0x20) & 0x3F;
- tmp = 1;
- }
- b43_shm_clear_tssi(dev);
-
- average = (v0 + v1 + v2 + v3 + 2) / 4;
-
- if (tmp
- && (b43_shm_read16(dev, B43_SHM_SHARED, 0x005E) &
- 0x8))
- average -= 13;
-
- estimated_pwr =
- b43_phy_estimate_power_out(dev, average);
-
- max_pwr = dev->dev->bus->sprom.maxpwr_bg;
- if ((dev->dev->bus->sprom.boardflags_lo
- & B43_BFL_PACTRL) && (phy->type == B43_PHYTYPE_G))
- max_pwr -= 0x3;
- if (unlikely(max_pwr <= 0)) {
- b43warn(dev->wl,
- "Invalid max-TX-power value in SPROM.\n");
- max_pwr = 60; /* fake it */
- dev->dev->bus->sprom.maxpwr_bg = max_pwr;
- }
-
- /*TODO:
- max_pwr = min(REG - dev->dev->bus->sprom.antennagain_bgphy - 0x6, max_pwr)
- where REG is the max power as per the regulatory domain
- */
-
- /* Get desired power (in Q5.2) */
- desired_pwr = INT_TO_Q52(phy->power_level);
- /* And limit it. max_pwr already is Q5.2 */
- desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
- if (b43_debug(dev, B43_DBG_XMITPOWER)) {
- b43dbg(dev->wl,
- "Current TX power output: " Q52_FMT
- " dBm, " "Desired TX power output: "
- Q52_FMT " dBm\n", Q52_ARG(estimated_pwr),
- Q52_ARG(desired_pwr));
- }
-
- /* Calculate the adjustment delta. */
- pwr_adjust = desired_pwr - estimated_pwr;
-
- /* RF attenuation delta. */
- rfatt_delta = ((pwr_adjust + 7) / 8);
- /* Lower attenuation => Bigger power output. Negate it. */
- rfatt_delta = -rfatt_delta;
-
- /* Baseband attenuation delta. */
- bbatt_delta = pwr_adjust / 2;
- /* Lower attenuation => Bigger power output. Negate it. */
- bbatt_delta = -bbatt_delta;
- /* RF att affects power level 4 times as much as
- * Baseband attennuation. Subtract it. */
- bbatt_delta -= 4 * rfatt_delta;
-
- /* So do we finally need to adjust something? */
- if ((rfatt_delta == 0) && (bbatt_delta == 0))
- return;
-
- /* Calculate the new attenuation values. */
- bbatt = phy->bbatt.att;
- bbatt += bbatt_delta;
- rfatt = phy->rfatt.att;
- rfatt += rfatt_delta;
-
- b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
- tx_control = phy->tx_control;
- if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
- if (rfatt <= 1) {
- if (tx_control == 0) {
- tx_control =
- B43_TXCTL_PA2DB |
- B43_TXCTL_TXMIX;
- rfatt += 2;
- bbatt += 2;
- } else if (dev->dev->bus->sprom.
- boardflags_lo &
- B43_BFL_PACTRL) {
- bbatt += 4 * (rfatt - 2);
- rfatt = 2;
- }
- } else if (rfatt > 4 && tx_control) {
- tx_control = 0;
- if (bbatt < 3) {
- rfatt -= 3;
- bbatt += 2;
- } else {
- rfatt -= 2;
- bbatt -= 2;
- }
- }
- }
- /* Save the control values */
- phy->tx_control = tx_control;
- b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
- phy->rfatt.att = rfatt;
- phy->bbatt.att = bbatt;
-
- /* Adjust the hardware */
- b43_phy_lock(dev);
- b43_radio_lock(dev);
- b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt,
- phy->tx_control);
- b43_radio_unlock(dev);
- b43_phy_unlock(dev);
- break;
- }
- case B43_PHYTYPE_N:
- b43_nphy_xmitpower(dev);
- break;
- default:
- B43_WARN_ON(1);
- }
-}
-
-static inline s32 b43_tssi2dbm_ad(s32 num, s32 den)
-{
- if (num < 0)
- return num / den;
- else
- return (num + den / 2) / den;
-}
-
-static inline
- s8 b43_tssi2dbm_entry(s8 entry[], u8 index, s16 pab0, s16 pab1, s16 pab2)
-{
- s32 m1, m2, f = 256, q, delta;
- s8 i = 0;
-
- m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
- m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
- do {
- if (i > 15)
- return -EINVAL;
- q = b43_tssi2dbm_ad(f * 4096 -
- b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
- delta = abs(q - f);
- f = q;
- i++;
- } while (delta >= 2);
- entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
- return 0;
-}
-
-/* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */
-int b43_phy_init_tssi2dbm_table(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- s16 pab0, pab1, pab2;
- u8 idx;
- s8 *dyn_tssi2dbm;
-
- if (phy->type == B43_PHYTYPE_A) {
- pab0 = (s16) (dev->dev->bus->sprom.pa1b0);
- pab1 = (s16) (dev->dev->bus->sprom.pa1b1);
- pab2 = (s16) (dev->dev->bus->sprom.pa1b2);
- } else {
- pab0 = (s16) (dev->dev->bus->sprom.pa0b0);
- pab1 = (s16) (dev->dev->bus->sprom.pa0b1);
- pab2 = (s16) (dev->dev->bus->sprom.pa0b2);
- }
-
- if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
- phy->tgt_idle_tssi = 0x34;
- phy->tssi2dbm = b43_tssi2dbm_b_table;
- return 0;
- }
-
- if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
- pab0 != -1 && pab1 != -1 && pab2 != -1) {
- /* The pabX values are set in SPROM. Use them. */
- if (phy->type == B43_PHYTYPE_A) {
- if ((s8) dev->dev->bus->sprom.itssi_a != 0 &&
- (s8) dev->dev->bus->sprom.itssi_a != -1)
- phy->tgt_idle_tssi =
- (s8) (dev->dev->bus->sprom.itssi_a);
- else
- phy->tgt_idle_tssi = 62;
- } else {
- if ((s8) dev->dev->bus->sprom.itssi_bg != 0 &&
- (s8) dev->dev->bus->sprom.itssi_bg != -1)
- phy->tgt_idle_tssi =
- (s8) (dev->dev->bus->sprom.itssi_bg);
- else
- phy->tgt_idle_tssi = 62;
- }
- dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
- if (dyn_tssi2dbm == NULL) {
- b43err(dev->wl, "Could not allocate memory "
- "for tssi2dbm table\n");
- return -ENOMEM;
- }
- for (idx = 0; idx < 64; idx++)
- if (b43_tssi2dbm_entry
- (dyn_tssi2dbm, idx, pab0, pab1, pab2)) {
- phy->tssi2dbm = NULL;
- b43err(dev->wl, "Could not generate "
- "tssi2dBm table\n");
- kfree(dyn_tssi2dbm);
- return -ENODEV;
- }
- phy->tssi2dbm = dyn_tssi2dbm;
- phy->dyn_tssi_tbl = 1;
- } else {
- /* pabX values not set in SPROM. */
- switch (phy->type) {
- case B43_PHYTYPE_A:
- /* APHY needs a generated table. */
- phy->tssi2dbm = NULL;
- b43err(dev->wl, "Could not generate tssi2dBm "
- "table (wrong SPROM info)!\n");
- return -ENODEV;
- case B43_PHYTYPE_B:
- phy->tgt_idle_tssi = 0x34;
- phy->tssi2dbm = b43_tssi2dbm_b_table;
- break;
- case B43_PHYTYPE_G:
- phy->tgt_idle_tssi = 0x34;
- phy->tssi2dbm = b43_tssi2dbm_g_table;
- break;
- }
- }
-
- return 0;
-}
-
-void b43_radio_turn_on(struct b43_wldev *dev)
-{
- struct b43_phy *phy = &dev->phy;
- int err;
- u8 channel;
-
- might_sleep();
-
- if (phy->radio_on)
- return;
-
- switch (phy->type) {
- case B43_PHYTYPE_A:
- b43_radio_write16(dev, 0x0004, 0x00C0);
- b43_radio_write16(dev, 0x0005, 0x0008);
- b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) & 0xFFF7);
- b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) & 0xFFF7);
- b43_radio_init2060(dev);
- break;
- case B43_PHYTYPE_B:
- case B43_PHYTYPE_G:
- //XXX
- break;
- case B43_PHYTYPE_N:
- b43_nphy_radio_turn_on(dev);
- break;
- default:
- B43_WARN_ON(1);
- }
- phy->radio_on = 1;
-}
-
-void b43_radio_turn_off(struct b43_wldev *dev, bool force)
-{
- struct b43_phy *phy = &dev->phy;
-
- if (!phy->radio_on && !force)
- return;
-
- switch (phy->type) {
- case B43_PHYTYPE_N:
- b43_nphy_radio_turn_off(dev);
- break;
- case B43_PHYTYPE_A:
- b43_radio_write16(dev, 0x0004, 0x00FF);
- b43_radio_write16(dev, 0x0005, 0x00FB);
- b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) | 0x0008);
- b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) | 0x0008);
- break;
- case B43_PHYTYPE_G: {
- //XXX
- break;
- }
- default:
- B43_WARN_ON(1);
- }
- phy->radio_on = 0;
-}
return value;
}
+#if 0
+/* This function converts a TSSI value to dBm in Q5.2 */
+static s8 b43_aphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
+{
+ struct b43_phy *phy = &dev->phy;
+ struct b43_phy_a *aphy = phy->a;
+ s8 dbm = 0;
+ s32 tmp;
+
+ tmp = (aphy->tgt_idle_tssi - aphy->cur_idle_tssi + tssi);
+ tmp += 0x80;
+ tmp = clamp_val(tmp, 0x00, 0xFF);
+ dbm = aphy->tssi2dbm[tmp];
+ //TODO: There's a FIXME on the specs
+
+ return dbm;
+}
+#endif
+
void b43_radio_set_tx_iq(struct b43_wldev *dev)
{
static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
}
}
+/* Initialise the TSSI->dBm lookup table */
+static int b43_aphy_init_tssi2dbm_table(struct b43_wldev *dev)
+{
+ struct b43_phy *phy = &dev->phy;
+ struct b43_phy_a *aphy = phy->a;
+ s16 pab0, pab1, pab2;
+
+ pab0 = (s16) (dev->dev->bus->sprom.pa1b0);
+ pab1 = (s16) (dev->dev->bus->sprom.pa1b1);
+ pab2 = (s16) (dev->dev->bus->sprom.pa1b2);
+
+ if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
+ pab0 != -1 && pab1 != -1 && pab2 != -1) {
+ /* The pabX values are set in SPROM. Use them. */
+ if ((s8) dev->dev->bus->sprom.itssi_a != 0 &&
+ (s8) dev->dev->bus->sprom.itssi_a != -1)
+ aphy->tgt_idle_tssi =
+ (s8) (dev->dev->bus->sprom.itssi_a);
+ else
+ aphy->tgt_idle_tssi = 62;
+ aphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
+ pab1, pab2);
+ if (!aphy->tssi2dbm)
+ return -ENOMEM;
+ } else {
+ /* pabX values not set in SPROM,
+ * but APHY needs a generated table. */
+ aphy->tssi2dbm = NULL;
+ b43err(dev->wl, "Could not generate tssi2dBm "
+ "table (wrong SPROM info)!\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
static int b43_aphy_op_allocate(struct b43_wldev *dev)
{
struct b43_phy_a *aphy;
+ int err;
aphy = kzalloc(sizeof(*aphy), GFP_KERNEL);
if (!aphy)
//TODO init struct b43_phy_a
+ err = b43_aphy_init_tssi2dbm_table(dev);
+ if (err)
+ goto err_free_aphy;
+
return 0;
+
+err_free_aphy:
+ kfree(aphy);
+ dev->phy.a = NULL;
+
+ return err;
}
static int b43_aphy_op_init(struct b43_wldev *dev)
aphy->initialised = 0;
}
//TODO
+ kfree(aphy->tssi2dbm);
kfree(aphy);
dev->phy.a = NULL;
}
static void b43_aphy_op_software_rfkill(struct b43_wldev *dev,
enum rfkill_state state)
-{//TODO
+{
+ struct b43_phy *phy = &dev->phy;
+
+ if (state == RFKILL_STATE_UNBLOCKED) {
+ if (phy->radio_on)
+ return;
+ b43_radio_write16(dev, 0x0004, 0x00C0);
+ b43_radio_write16(dev, 0x0005, 0x0008);
+ b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) & 0xFFF7);
+ b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) & 0xFFF7);
+ b43_radio_init2060(dev);
+ } else {
+ b43_radio_write16(dev, 0x0004, 0x00FF);
+ b43_radio_write16(dev, 0x0005, 0x00FB);
+ b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) | 0x0008);
+ b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) | 0x0008);
+ }
}
static int b43_aphy_op_switch_channel(struct b43_wldev *dev,
projects / platform / kernel / linux-3.10.git / commitdiff