Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-02 02:01:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

b43: Split PHY alloc and init

Browse Source 
This splits the PHY allocation from the PHY init.
This is needed in order to properly support Analog handling.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch 2008-09-02 13:00:34 +02:00 committed by John W. Linville
parent 7cb770729b
commit fb11137af8
11 changed files with 193 additions and 124 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/net/wireless/b43/main.c
View File

@ -1091,8 +1091,12 @@ void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
msleep(1);
/* Turn Analog ON */
b43_switch_analog(dev, 1);
/* Turn Analog ON, but only if we already know the PHY-type.
* This protects against very early setup where we don't know the
* PHY-type, yet. wireless_core_reset will be called once again later,
* when we know the PHY-type. */
if (dev->phy.ops)
b43_switch_analog(dev, 1);
macctl = b43_read32(dev, B43_MMIO_MACCTL);
macctl &= ~B43_MACCTL_GMODE;
@ -2694,6 +2698,7 @@ static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
/* This is the opposite of b43_chip_init() */
static void b43_chip_exit(struct b43_wldev *dev)
{
b43_phy_exit(dev);
b43_gpio_cleanup(dev);
/* firmware is released later */
}
@ -3952,7 +3957,6 @@ static void b43_wireless_core_exit(struct b43_wldev *dev)
dev_kfree_skb_any(dev->wl->current_beacon);
dev->wl->current_beacon = NULL;
}
b43_phy_exit(dev);
ssb_device_disable(dev->dev, 0);
ssb_bus_may_powerdown(dev->dev->bus);
@ -3979,24 +3983,23 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
b43_wireless_core_reset(dev, tmp);
}
/* Reset all data structures. */
setup_struct_wldev_for_init(dev);
err = b43_phy_operations_setup(dev);
if (err)
goto err_busdown;
phy->ops->prepare_structs(dev);
/* Enable IRQ routing to this device. */
ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
b43_imcfglo_timeouts_workaround(dev);
b43_bluetooth_coext_disable(dev);
if (phy->ops->prepare) {
err = phy->ops->prepare(dev);
if (phy->ops->prepare_hardware) {
err = phy->ops->prepare_hardware(dev);
if (err)
goto err_phy_exit;
goto err_busdown;
}
err = b43_chip_init(dev);
if (err)
goto err_phy_exit;
goto err_busdown;
b43_shm_write16(dev, B43_SHM_SHARED,
B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
hf = b43_hf_read(dev);
@ -4064,8 +4067,6 @@ out:
err_chip_exit:
b43_chip_exit(dev);
err_phy_exit:
b43_phy_exit(dev);
err_busdown:
ssb_bus_may_powerdown(bus);
B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
@ -4342,6 +4343,7 @@ static void b43_wireless_core_detach(struct b43_wldev *dev)
/* We release firmware that late to not be required to re-request
* is all the time when we reinit the core. */
b43_release_firmware(dev);
b43_phy_free(dev);
}
static int b43_wireless_core_attach(struct b43_wldev *dev)
@ -4415,16 +4417,20 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
}
}
err = b43_phy_allocate(dev);
if (err)
goto err_powerdown;
dev->phy.gmode = have_2ghz_phy;
tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
b43_wireless_core_reset(dev, tmp);
err = b43_validate_chipaccess(dev);
if (err)
goto err_powerdown;
goto err_phy_free;
err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
if (err)
goto err_powerdown;
goto err_phy_free;
/* Now set some default "current_dev" */
if (!wl->current_dev)
@ -4438,6 +4444,8 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
out:
return err;
err_phy_free:
b43_phy_free(dev);
err_powerdown:
ssb_bus_may_powerdown(bus);
return err;

46
drivers/net/wireless/b43/phy_a.c
View File

@ -391,8 +391,6 @@ static int b43_aphy_op_allocate(struct b43_wldev *dev)
return -ENOMEM;
dev->phy.a = aphy;
//TODO init struct b43_phy_a
err = b43_aphy_init_tssi2dbm_table(dev);
if (err)
goto err_free_aphy;
@ -406,30 +404,47 @@ err_free_aphy:
return err;
}
static int b43_aphy_op_init(struct b43_wldev *dev)
static void b43_aphy_op_prepare_structs(struct b43_wldev *dev)
{
struct b43_phy_a *aphy = dev->phy.a;
struct b43_phy *phy = &dev->phy;
struct b43_phy_a *aphy = phy->a;
const void *tssi2dbm;
int tgt_idle_tssi;
b43_phy_inita(dev);
aphy->initialised = 1;
/* tssi2dbm table is constant, so it is initialized at alloc time.
* Save a copy of the pointer. */
tssi2dbm = aphy->tssi2dbm;
tgt_idle_tssi = aphy->tgt_idle_tssi;
/* Zero out the whole PHY structure. */
memset(aphy, 0, sizeof(*aphy));
aphy->tssi2dbm = tssi2dbm;
aphy->tgt_idle_tssi = tgt_idle_tssi;
//TODO init struct b43_phy_a
return 0;
}
static void b43_aphy_op_exit(struct b43_wldev *dev)
static void b43_aphy_op_free(struct b43_wldev *dev)
{
struct b43_phy_a *aphy = dev->phy.a;
struct b43_phy *phy = &dev->phy;
struct b43_phy_a *aphy = phy->a;
if (aphy->initialised) {
//TODO
aphy->initialised = 0;
}
//TODO
kfree(aphy->tssi2dbm);
aphy->tssi2dbm = NULL;
kfree(aphy);
dev->phy.a = NULL;
}
static int b43_aphy_op_init(struct b43_wldev *dev)
{
b43_phy_inita(dev);
return 0;
}
static inline u16 adjust_phyreg(struct b43_wldev *dev, u16 offset)
{
/* OFDM registers are base-registers for the A-PHY. */
@ -608,8 +623,9 @@ static void b43_aphy_op_pwork_60sec(struct b43_wldev *dev)
const struct b43_phy_operations b43_phyops_a = {
.allocate = b43_aphy_op_allocate,
.free = b43_aphy_op_free,
.prepare_structs = b43_aphy_op_prepare_structs,
.init = b43_aphy_op_init,
.exit = b43_aphy_op_exit,
.phy_read = b43_aphy_op_read,
.phy_write = b43_aphy_op_write,
.radio_read = b43_aphy_op_radio_read,

2
drivers/net/wireless/b43/phy_a.h
View File

@ -103,8 +103,6 @@ void b43_ofdmtab_write32(struct b43_wldev *dev, u16 table,
struct b43_phy_a {
bool initialised;
/* Pointer to the table used to convert a
* TSSI value to dBm-Q5.2 */
const s8 *tssi2dbm;

8
drivers/net/wireless/b43/phy_common.c
View File

@ -35,7 +35,7 @@
#include "main.h"
int b43_phy_operations_setup(struct b43_wldev *dev)
int b43_phy_allocate(struct b43_wldev *dev)
{
struct b43_phy *phy = &(dev->phy);
int err;
@ -70,6 +70,12 @@ int b43_phy_operations_setup(struct b43_wldev *dev)
return err;
}
void b43_phy_free(struct b43_wldev *dev)
{
dev->phy.ops->free(dev);
dev->phy.ops = NULL;
}
int b43_phy_init(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;

29
drivers/net/wireless/b43/phy_common.h
View File

@ -74,11 +74,21 @@ enum b43_txpwr_result {
/**
* struct b43_phy_operations - Function pointers for PHY ops.
*
* @prepare: Prepare the PHY. This is called before @init.
* @allocate: Allocate and initialise the PHY data structures.
* Must not be NULL.
* @free: Destroy and free the PHY data structures.
* Must not be NULL.
*
* @prepare_structs: Prepare the PHY data structures.
* The data structures allocated in @allocate are
* initialized here.
* Must not be NULL.
* @prepare_hardware: Prepare the PHY. This is called before b43_chip_init to
* do some early early PHY hardware init.
* Can be NULL, if not required.
* @init: Initialize the PHY.
* Must not be NULL.
* @exit: Shutdown the PHY and free all data structures.
* @exit: Shutdown the PHY.
* Can be NULL, if not required.
*
* @phy_read: Read from a PHY register.
@ -133,7 +143,9 @@ enum b43_txpwr_result {
struct b43_phy_operations {
/* Initialisation */
int (*allocate)(struct b43_wldev *dev);
int (*prepare)(struct b43_wldev *dev);
void (*free)(struct b43_wldev *dev);
void (*prepare_structs)(struct b43_wldev *dev);
int (*prepare_hardware)(struct b43_wldev *dev);
int (*init)(struct b43_wldev *dev);
void (*exit)(struct b43_wldev *dev);
@ -237,10 +249,15 @@ struct b43_phy {
/**
* b43_phy_operations_setup - Initialize the PHY operations datastructure
* based on the current PHY type.
* b43_phy_allocate - Allocate PHY structs
* Allocate the PHY data structures, based on the current dev->phy.type
*/
int b43_phy_operations_setup(struct b43_wldev *dev);
int b43_phy_allocate(struct b43_wldev *dev);
/**
* b43_phy_free - Free PHY structs
*/
void b43_phy_free(struct b43_wldev *dev);
/**
* b43_phy_init - Initialise the PHY

104
drivers/net/wireless/b43/phy_g.c
View File

@ -2635,7 +2635,7 @@ static int b43_gphy_op_allocate(struct b43_wldev *dev)
{
struct b43_phy_g *gphy;
struct b43_txpower_lo_control *lo;
int err, i;
int err;
gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
if (!gphy) {
@ -2644,6 +2644,51 @@ static int b43_gphy_op_allocate(struct b43_wldev *dev)
}
dev->phy.g = gphy;
lo = kzalloc(sizeof(*lo), GFP_KERNEL);
if (!lo) {
err = -ENOMEM;
goto err_free_gphy;
}
gphy->lo_control = lo;
err = b43_gphy_init_tssi2dbm_table(dev);
if (err)
goto err_free_lo;
return 0;
err_free_lo:
kfree(lo);
err_free_gphy:
kfree(gphy);
error:
return err;
}
static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_g *gphy = phy->g;
const void *tssi2dbm;
int tgt_idle_tssi;
struct b43_txpower_lo_control *lo;
unsigned int i;
/* tssi2dbm table is constant, so it is initialized at alloc time.
* Save a copy of the pointer. */
tssi2dbm = gphy->tssi2dbm;
tgt_idle_tssi = gphy->tgt_idle_tssi;
/* Save the LO pointer. */
lo = gphy->lo_control;
/* Zero out the whole PHY structure. */
memset(gphy, 0, sizeof(*gphy));
/* Restore pointers. */
gphy->tssi2dbm = tssi2dbm;
gphy->tgt_idle_tssi = tgt_idle_tssi;
gphy->lo_control = lo;
memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
/* NRSSI */
@ -2662,31 +2707,28 @@ static int b43_gphy_op_allocate(struct b43_wldev *dev)
gphy->average_tssi = 0xFF;
lo = kzalloc(sizeof(*lo), GFP_KERNEL);
if (!lo) {
err = -ENOMEM;
goto err_free_gphy;
}
gphy->lo_control = lo;
/* Local Osciallator structure */
lo->tx_bias = 0xFF;
INIT_LIST_HEAD(&lo->calib_list);
err = b43_gphy_init_tssi2dbm_table(dev);
if (err)
goto err_free_lo;
return 0;
err_free_lo:
kfree(lo);
err_free_gphy:
kfree(gphy);
error:
return err;
}
static int b43_gphy_op_prepare(struct b43_wldev *dev)
static void b43_gphy_op_free(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_g *gphy = phy->g;
kfree(gphy->lo_control);
if (gphy->dyn_tssi_tbl)
kfree(gphy->tssi2dbm);
gphy->dyn_tssi_tbl = 0;
gphy->tssi2dbm = NULL;
kfree(gphy);
dev->phy.g = NULL;
}
static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_g *gphy = phy->g;
@ -2718,28 +2760,14 @@ static int b43_gphy_op_prepare(struct b43_wldev *dev)
static int b43_gphy_op_init(struct b43_wldev *dev)
{
struct b43_phy_g *gphy = dev->phy.g;
b43_phy_initg(dev);
gphy->initialised = 1;
return 0;
}
static void b43_gphy_op_exit(struct b43_wldev *dev)
{
struct b43_phy_g *gphy = dev->phy.g;
if (gphy->initialised) {
//TODO
gphy->initialised = 0;
}
b43_lo_g_cleanup(dev);
kfree(gphy->lo_control);
if (gphy->dyn_tssi_tbl)
kfree(gphy->tssi2dbm);
kfree(gphy);
dev->phy.g = NULL;
}
static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
@ -3232,7 +3260,9 @@ static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
const struct b43_phy_operations b43_phyops_g = {
.allocate = b43_gphy_op_allocate,
.prepare = b43_gphy_op_prepare,
.free = b43_gphy_op_free,
.prepare_structs = b43_gphy_op_prepare_structs,
.prepare_hardware = b43_gphy_op_prepare_hardware,
.init = b43_gphy_op_init,
.exit = b43_gphy_op_exit,
.phy_read = b43_gphy_op_read,

2
drivers/net/wireless/b43/phy_g.h
View File

@ -114,8 +114,6 @@ static inline bool b43_compare_bbatt(const struct b43_bbatt *a,
struct b43_txpower_lo_control;
struct b43_phy_g {
bool initialised;
/* ACI (adjacent channel interference) flags. */
bool aci_enable;
bool aci_wlan_automatic;

39
drivers/net/wireless/b43/phy_lp.c
View File

@ -36,34 +36,34 @@ static int b43_lpphy_op_allocate(struct b43_wldev *dev)
return -ENOMEM;
dev->phy.lp = lpphy;
//TODO
return 0;
}
static void b43_lpphy_op_prepare_structs(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_lp *lpphy = phy->lp;
memset(lpphy, 0, sizeof(*lpphy));
//TODO
}
static void b43_lpphy_op_free(struct b43_wldev *dev)
{
struct b43_phy_lp *lpphy = dev->phy.lp;
kfree(lpphy);
dev->phy.lp = NULL;
}
static int b43_lpphy_op_init(struct b43_wldev *dev)
{
struct b43_phy_lp *lpphy = dev->phy.lp;
//TODO
lpphy->initialised = 1;
return 0;
}
static void b43_lpphy_op_exit(struct b43_wldev *dev)
{
struct b43_phy_lp *lpphy = dev->phy.lp;
if (lpphy->initialised) {
//TODO
lpphy->initialised = 0;
}
kfree(lpphy);
dev->phy.lp = NULL;
}
static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
{
b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
@ -138,8 +138,9 @@ static enum b43_txpwr_result b43_lpphy_op_recalc_txpower(struct b43_wldev *dev,
const struct b43_phy_operations b43_phyops_lp = {
.allocate = b43_lpphy_op_allocate,
.free = b43_lpphy_op_free,
.prepare_structs = b43_lpphy_op_prepare_structs,
.init = b43_lpphy_op_init,
.exit = b43_lpphy_op_exit,
.phy_read = b43_lpphy_op_read,
.phy_write = b43_lpphy_op_write,
.radio_read = b43_lpphy_op_radio_read,

2
drivers/net/wireless/b43/phy_lp.h
View File

@ -530,7 +530,7 @@
struct b43_phy_lp {
bool initialised;
//TODO
};

47
drivers/net/wireless/b43/phy_n.c
View File

@ -499,35 +499,31 @@ static int b43_nphy_op_allocate(struct b43_wldev *dev)
return -ENOMEM;
dev->phy.n = nphy;
//TODO init struct b43_phy_n
return 0;
}
static void b43_nphy_op_prepare_structs(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_n *nphy = phy->n;
memset(nphy, 0, sizeof(*nphy));
//TODO init struct b43_phy_n
}
static void b43_nphy_op_free(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_n *nphy = phy->n;
kfree(nphy);
phy->n = NULL;
}
static int b43_nphy_op_init(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
int err;
err = b43_phy_initn(dev);
if (err)
return err;
nphy->initialised = 1;
return 0;
}
static void b43_nphy_op_exit(struct b43_wldev *dev)
{
struct b43_phy_n *nphy = dev->phy.n;
if (nphy->initialised) {
//TODO
nphy->initialised = 0;
}
//TODO
kfree(nphy);
dev->phy.n = NULL;
return b43_phy_initn(dev);
}
static inline void check_phyreg(struct b43_wldev *dev, u16 offset)
@ -610,8 +606,9 @@ static unsigned int b43_nphy_op_get_default_chan(struct b43_wldev *dev)
const struct b43_phy_operations b43_phyops_n = {
.allocate = b43_nphy_op_allocate,
.free = b43_nphy_op_free,
.prepare_structs = b43_nphy_op_prepare_structs,
.init = b43_nphy_op_init,
.exit = b43_nphy_op_exit,
.phy_read = b43_nphy_op_read,
.phy_write = b43_nphy_op_write,
.radio_read = b43_nphy_op_radio_read,

2
drivers/net/wireless/b43/phy_n.h
View File

@ -920,8 +920,6 @@
struct b43_wldev;
struct b43_phy_n {
bool initialised;
//TODO lots of missing stuff
};