From c5e7c035952e0a7e7bbbab2f73ee3f158a0f2a91 Mon Sep 17 00:00:00 2001 From: Roland Vossen Date: Wed, 1 Jun 2011 13:44:47 +0200 Subject: [PATCH] staging: brcm80211: removed iovar layer from softmac Code cleanup. Softmac contained a redundant level of indirection, named 'iovar functionality'. Signed-off-by: Roland Vossen Reviewed-by: Arend van Spriel Signed-off-by: Greg Kroah-Hartman --- .../staging/brcm80211/brcmsmac/wl_mac80211.c | 17 +- drivers/staging/brcm80211/brcmsmac/wlc_main.c | 433 +++--------------- drivers/staging/brcm80211/brcmsmac/wlc_main.h | 6 - drivers/staging/brcm80211/brcmsmac/wlc_pub.h | 23 +- 4 files changed, 90 insertions(+), 389 deletions(-) diff --git a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c index 6c6236c969b7..3deb9036372c 100644 --- a/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c +++ b/drivers/staging/brcm80211/brcmsmac/wl_mac80211.c @@ -270,14 +270,14 @@ static int wl_ops_config(struct ieee80211_hw *hw, u32 changed) WL_LOCK(wl); if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { - if (wlc_iovar_setint - (wl->wlc, "bcn_li_bcn", conf->listen_interval)) { + if (wlc_set_par(wl->wlc, IOV_BCN_LI_BCN, conf->listen_interval) + < 0) { wiphy_err(wiphy, "%s: Error setting listen_interval\n", __func__); err = -EIO; goto config_out; } - wlc_iovar_getint(wl->wlc, "bcn_li_bcn", &new_int); + wlc_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int); } if (changed & IEEE80211_CONF_CHANGE_MONITOR) wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n", @@ -289,14 +289,14 @@ static int wl_ops_config(struct ieee80211_hw *hw, u32 changed) "true" : "false"); if (changed & IEEE80211_CONF_CHANGE_POWER) { - if (wlc_iovar_setint - (wl->wlc, "qtxpower", conf->power_level * 4)) { + if (wlc_set_par(wl->wlc, IOV_QTXPOWER, conf->power_level * 4) + < 0) { wiphy_err(wiphy, "%s: Error setting power_level\n", __func__); err = -EIO; goto config_out; } - wlc_iovar_getint(wl->wlc, "qtxpower", &new_int); + wlc_get_par(wl->wlc, IOV_QTXPOWER, &new_int); if (new_int != (conf->power_level * 4)) wiphy_err(wiphy, "%s: Power level req != actual, %d %d" "\n", __func__, conf->power_level * 4, @@ -808,7 +808,7 @@ static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs, wl->pub->ieee_hw = hw; - if (wlc_iovar_setint(wl->wlc, "mpc", 0)) { + if (wlc_set_par(wl->wlc, IOV_MPC, 0) < 0) { wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n", unit); } @@ -821,8 +821,7 @@ static struct wl_info *wl_attach(u16 vendor, u16 device, unsigned long regs, wl->irq = irq; /* register module */ - wlc_module_register(wl->pub, NULL, "linux", wl, NULL, wl_linux_watchdog, - NULL); + wlc_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL); if (ieee_hw_init(hw)) { wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit, diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c index 2425fda50267..c078ea053a05 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c +++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.c @@ -138,28 +138,6 @@ uint wl_msg_level = static struct wlc_info *wlc_info_dbg = (struct wlc_info *) (NULL); #endif -/* IOVar table */ - -/* Parameter IDs, for use only internally to wlc -- in the wlc_iovars - * table and by the wlc_doiovar() function. No ordering is imposed: - * the table is keyed by name, and the function uses a switch. - */ -enum { - IOV_MPC = 1, - IOV_RTSTHRESH, - IOV_QTXPOWER, - IOV_BCN_LI_BCN, /* Beacon listen interval in # of beacons */ - IOV_LAST /* In case of a need to check max ID number */ -}; - -const bcm_iovar_t wlc_iovars[] = { - {"mpc", IOV_MPC, (0), IOVT_BOOL, 0}, - {"rtsthresh", IOV_RTSTHRESH, (IOVF_WHL), IOVT_UINT16, 0}, - {"qtxpower", IOV_QTXPOWER, (IOVF_WHL), IOVT_UINT32, 0}, - {"bcn_li_bcn", IOV_BCN_LI_BCN, (0), IOVT_UINT8, 0}, - {NULL, 0, 0, 0, 0} -}; - const u8 prio2fifo[NUMPRIO] = { TX_AC_BE_FIFO, /* 0 BE AC_BE Best Effort */ TX_AC_BK_FIFO, /* 1 BK AC_BK Background */ @@ -255,8 +233,6 @@ static void wlc_watchdog(void *arg); static void wlc_watchdog_by_timer(void *arg); static u16 wlc_rate_shm_offset(struct wlc_info *wlc, u8 rate); static int wlc_set_rateset(struct wlc_info *wlc, wlc_rateset_t *rs_arg); -static int wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val, - const bcm_iovar_t *vi); static u8 wlc_local_constraint_qdbm(struct wlc_info *wlc); /* send and receive */ @@ -1401,10 +1377,6 @@ void *wlc_attach(struct wl_info *wl, u16 vendor, u16 device, uint unit, /* 11n_disable nvram */ n_disabled = getintvar(pub->vars, "11n_disable"); - /* register a module (to handle iovars) */ - wlc_module_register(wlc->pub, wlc_iovars, "wlc_iovars", wlc, - wlc_doiovar, NULL, NULL); - /* * low level attach steps(all hw accesses go * inside, no more in rest of the attach) @@ -1774,9 +1746,6 @@ uint wlc_detach(struct wlc_info *wlc) wlc->dumpcb_head = NULL; } - /* Detach from iovar manager */ - wlc_module_unregister(wlc->pub, "wlc_iovars", wlc); - while (wlc->tx_queues != NULL) wlc_txq_free(wlc, wlc->tx_queues); @@ -2819,48 +2788,11 @@ _wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len, return bcmerror; } -/* Look up the given var name in the given table */ -static const bcm_iovar_t *wlc_iovar_lookup(const bcm_iovar_t *table, - const char *name) -{ - const bcm_iovar_t *vi; - const char *lookup_name; - - /* skip any ':' delimited option prefixes */ - lookup_name = strrchr(name, ':'); - if (lookup_name != NULL) - lookup_name++; - else - lookup_name = name; - - for (vi = table; vi->name; vi++) { - if (!strcmp(vi->name, lookup_name)) - return vi; - } - /* ran to end of table */ - - return NULL; /* var name not found */ -} - -int wlc_iovar_getint(struct wlc_info *wlc, const char *name, int *arg) -{ - return wlc_iovar_op(wlc, name, NULL, 0, arg, sizeof(s32), IOV_GET, - NULL); -} - -int wlc_iovar_setint(struct wlc_info *wlc, const char *name, int arg) -{ - return wlc_iovar_op(wlc, name, NULL, 0, (void *)&arg, sizeof(arg), - IOV_SET, NULL); -} - /* - * register iovar table, watchdog and down handlers. - * calling function must keep 'iovars' until wlc_module_unregister is called. - * 'iovar' must have the last entry's name field being NULL as terminator. + * register watchdog and down handlers. */ -int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars, - const char *name, void *hdl, iovar_fn_t i_fn, +int wlc_module_register(struct wlc_pub *pub, + const char *name, void *hdl, watchdog_fn_t w_fn, down_fn_t d_fn) { struct wlc_info *wlc = (struct wlc_info *) pub->wlc; @@ -2871,9 +2803,7 @@ int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars, if (wlc->modulecb[i].name[0] == '\0') { strncpy(wlc->modulecb[i].name, name, sizeof(wlc->modulecb[i].name) - 1); - wlc->modulecb[i].iovars = iovars; wlc->modulecb[i].hdl = hdl; - wlc->modulecb[i].iovar_fn = i_fn; wlc->modulecb[i].watchdog_fn = w_fn; wlc->modulecb[i].down_fn = d_fn; return 0; @@ -2918,295 +2848,6 @@ static void wlc_wme_retries_write(struct wlc_info *wlc) } } -/* Get or set an iovar. The params/p_len pair specifies any additional - * qualifying parameters (e.g. an "element index") for a get, while the - * arg/len pair is the buffer for the value to be set or retrieved. - * Operation (get/set) is specified by the last argument. - * interface context provided by wlcif - * - * All pointers may point into the same buffer. - */ -int -wlc_iovar_op(struct wlc_info *wlc, const char *name, - void *params, int p_len, void *arg, int len, - bool set, struct wlc_if *wlcif) -{ - int err = 0; - int val_size; - const bcm_iovar_t *vi = NULL; - u32 actionid; - int i; - - if (!set && (len == sizeof(int)) && - !(IS_ALIGNED((unsigned long)(arg), (uint) sizeof(int)))) { - wiphy_err(wlc->wiphy, "wl%d: %s unaligned get ptr for %s\n", - wlc->pub->unit, __func__, name); - return -ENOTSUPP; - } - - /* find the given iovar name */ - for (i = 0; i < WLC_MAXMODULES; i++) { - if (!wlc->modulecb[i].iovars) - continue; - vi = wlc_iovar_lookup(wlc->modulecb[i].iovars, name); - if (vi) - break; - } - /* iovar name not found */ - if (i >= WLC_MAXMODULES) { - return -ENOTSUPP; - } - - /* set up 'params' pointer in case this is a set command so that - * the convenience int and bool code can be common to set and get - */ - if (params == NULL) { - params = arg; - p_len = len; - } - - if (vi->type == IOVT_VOID) - val_size = 0; - else if (vi->type == IOVT_BUFFER) - val_size = len; - else - /* all other types are integer sized */ - val_size = sizeof(int); - - actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid); - - /* Do the actual parameter implementation */ - err = wlc->modulecb[i].iovar_fn(wlc->modulecb[i].hdl, vi, actionid, - name, params, p_len, arg, len, val_size, - wlcif); - return err; -} - -int -wlc_iovar_check(struct wlc_pub *pub, const bcm_iovar_t *vi, void *arg, int len, - bool set) -{ - struct wlc_info *wlc = (struct wlc_info *) pub->wlc; - int err = 0; - s32 int_val = 0; - - /* check generic condition flags */ - if (set) { - if (((vi->flags & IOVF_SET_DOWN) && wlc->pub->up) || - ((vi->flags & IOVF_SET_UP) && !wlc->pub->up)) { - err = (wlc->pub->up ? -EISCONN : -ENOLINK); - } else if ((vi->flags & IOVF_SET_BAND) - && IS_MBAND_UNLOCKED(wlc)) { - err = -ENOMEDIUM; - } else if ((vi->flags & IOVF_SET_CLK) && !wlc->clk) { - err = -EIO; - } - } else { - if (((vi->flags & IOVF_GET_DOWN) && wlc->pub->up) || - ((vi->flags & IOVF_GET_UP) && !wlc->pub->up)) { - err = (wlc->pub->up ? -EISCONN : -ENOLINK); - } else if ((vi->flags & IOVF_GET_BAND) - && IS_MBAND_UNLOCKED(wlc)) { - err = -ENOMEDIUM; - } else if ((vi->flags & IOVF_GET_CLK) && !wlc->clk) { - err = -EIO; - } - } - - if (err) - goto exit; - - /* length check on io buf */ - err = bcm_iovar_lencheck(vi, arg, len, set); - if (err) - goto exit; - - /* On set, check value ranges for integer types */ - if (set) { - switch (vi->type) { - case IOVT_BOOL: - case IOVT_INT8: - case IOVT_INT16: - case IOVT_INT32: - case IOVT_UINT8: - case IOVT_UINT16: - case IOVT_UINT32: - memcpy(&int_val, arg, sizeof(int)); - err = wlc_iovar_rangecheck(wlc, int_val, vi); - break; - } - } - exit: - return err; -} - -/* handler for iovar table wlc_iovars */ -/* - * IMPLEMENTATION NOTE: In order to avoid checking for get/set in each - * iovar case, the switch statement maps the iovar id into separate get - * and set values. If you add a new iovar to the switch you MUST use - * IOV_GVAL and/or IOV_SVAL in the case labels to avoid conflict with - * another case. - * Please use params for additional qualifying parameters. - */ -int -wlc_doiovar(void *hdl, const bcm_iovar_t *vi, u32 actionid, - const char *name, void *params, uint p_len, void *arg, int len, - int val_size, struct wlc_if *wlcif) -{ - struct wlc_info *wlc = hdl; - struct wlc_bsscfg *bsscfg; - int err = 0; - s32 int_val = 0; - s32 int_val2 = 0; - s32 *ret_int_ptr; - bool bool_val; - bool bool_val2; - wlc_bss_info_t *current_bss; - - BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); - - bsscfg = NULL; - current_bss = NULL; - - err = wlc_iovar_check(wlc->pub, vi, arg, len, IOV_ISSET(actionid)); - if (err != 0) - return err; - - /* convenience int and bool vals for first 8 bytes of buffer */ - if (p_len >= (int)sizeof(int_val)) - memcpy(&int_val, params, sizeof(int_val)); - - if (p_len >= (int)sizeof(int_val) * 2) - memcpy(&int_val2, - (void *)((unsigned long)params + sizeof(int_val)), - sizeof(int_val)); - - /* convenience int ptr for 4-byte gets (requires int aligned arg) */ - ret_int_ptr = (s32 *) arg; - - bool_val = (int_val != 0) ? true : false; - bool_val2 = (int_val2 != 0) ? true : false; - - BCMMSG(wlc->wiphy, "wl%d: id %d\n", wlc->pub->unit, IOV_ID(actionid)); - /* Do the actual parameter implementation */ - switch (actionid) { - case IOV_SVAL(IOV_RTSTHRESH): - wlc->RTSThresh = int_val; - break; - - case IOV_GVAL(IOV_QTXPOWER):{ - uint qdbm; - bool override; - - err = wlc_phy_txpower_get(wlc->band->pi, &qdbm, - &override); - if (err != 0) - return err; - - /* Return qdbm units */ - *ret_int_ptr = - qdbm | (override ? WL_TXPWR_OVERRIDE : 0); - break; - } - - /* As long as override is false, this only sets the *user* targets. - User can twiddle this all he wants with no harm. - wlc_phy_txpower_set() explicitly sets override to false if - not internal or test. - */ - case IOV_SVAL(IOV_QTXPOWER):{ - u8 qdbm; - bool override; - - /* Remove override bit and clip to max qdbm value */ - qdbm = (u8)min_t(u32, (int_val & ~WL_TXPWR_OVERRIDE), 0xff); - /* Extract override setting */ - override = (int_val & WL_TXPWR_OVERRIDE) ? true : false; - err = - wlc_phy_txpower_set(wlc->band->pi, qdbm, override); - break; - } - - case IOV_GVAL(IOV_MPC): - *ret_int_ptr = (s32) wlc->mpc; - break; - - case IOV_SVAL(IOV_MPC): - wlc->mpc = bool_val; - wlc_radio_mpc_upd(wlc); - - break; - - case IOV_GVAL(IOV_BCN_LI_BCN): - *ret_int_ptr = wlc->bcn_li_bcn; - break; - - case IOV_SVAL(IOV_BCN_LI_BCN): - wlc->bcn_li_bcn = (u8) int_val; - if (wlc->pub->up) - wlc_bcn_li_upd(wlc); - break; - - default: - wiphy_err(wlc->wiphy, "wl%d: %s: unsupported\n", - wlc->pub->unit, __func__); - err = -ENOTSUPP; - break; - } - - goto exit; /* avoid unused label warning */ - - exit: - return err; -} - -static int -wlc_iovar_rangecheck(struct wlc_info *wlc, u32 val, const bcm_iovar_t *vi) -{ - int err = 0; - u32 min_val = 0; - u32 max_val = 0; - - /* Only ranged integers are checked */ - switch (vi->type) { - case IOVT_INT32: - max_val |= 0x7fffffff; - /* fall through */ - case IOVT_INT16: - max_val |= 0x00007fff; - /* fall through */ - case IOVT_INT8: - max_val |= 0x0000007f; - min_val = ~max_val; - if (vi->flags & IOVF_NTRL) - min_val = 1; - else if (vi->flags & IOVF_WHL) - min_val = 0; - /* Signed values are checked against max_val and min_val */ - if ((s32) val < (s32) min_val - || (s32) val > (s32) max_val) - err = -EINVAL; - break; - - case IOVT_UINT32: - max_val |= 0xffffffff; - /* fall through */ - case IOVT_UINT16: - max_val |= 0x0000ffff; - /* fall through */ - case IOVT_UINT8: - max_val |= 0x000000ff; - if (vi->flags & IOVF_NTRL) - min_val = 1; - if ((val < min_val) || (val > max_val)) - err = -EINVAL; - break; - } - - return err; -} - #ifdef BCMDBG static const char *supr_reason[] = { "None", "PMQ Entry", "Flush request", @@ -6353,3 +5994,71 @@ void wlc_wait_for_tx_completion(struct wlc_info *wlc, bool drop) wl_msleep(wlc->wl, 1); } } + +int wlc_set_par(struct wlc_info *wlc, enum wlc_par_id par_id, int int_val) +{ + int err = 0; + + switch (par_id) { + case IOV_BCN_LI_BCN: + wlc->bcn_li_bcn = (u8) int_val; + if (wlc->pub->up) + wlc_bcn_li_upd(wlc); + break; + /* As long as override is false, this only sets the *user* + targets. User can twiddle this all he wants with no harm. + wlc_phy_txpower_set() explicitly sets override to false if + not internal or test. + */ + case IOV_QTXPOWER:{ + u8 qdbm; + bool override; + + /* Remove override bit and clip to max qdbm value */ + qdbm = (u8)min_t(u32, (int_val & ~WL_TXPWR_OVERRIDE), 0xff); + /* Extract override setting */ + override = (int_val & WL_TXPWR_OVERRIDE) ? true : false; + err = + wlc_phy_txpower_set(wlc->band->pi, qdbm, override); + break; + } + case IOV_MPC: + wlc->mpc = (bool)int_val; + wlc_radio_mpc_upd(wlc); + break; + default: + err = -ENOTSUPP; + } + return err; +} + +int wlc_get_par(struct wlc_info *wlc, enum wlc_par_id par_id, int *ret_int_ptr) +{ + int err = 0; + + switch (par_id) { + case IOV_BCN_LI_BCN: + *ret_int_ptr = wlc->bcn_li_bcn; + break; + case IOV_QTXPOWER: { + uint qdbm; + bool override; + + err = wlc_phy_txpower_get(wlc->band->pi, &qdbm, + &override); + if (err != 0) + return err; + + /* Return qdbm units */ + *ret_int_ptr = + qdbm | (override ? WL_TXPWR_OVERRIDE : 0); + break; + } + case IOV_MPC: + *ret_int_ptr = (s32) wlc->mpc; + break; + default: + err = -ENOTSUPP; + } + return err; +} diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.h b/drivers/staging/brcm80211/brcmsmac/wlc_main.h index 0bb37845e51d..193f73a4fe7c 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_main.h +++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.h @@ -898,12 +898,6 @@ extern void wlc_set_chanspec(struct wlc_info *wlc, chanspec_t chanspec); extern bool wlc_timers_init(struct wlc_info *wlc, int unit); -extern const bcm_iovar_t wlc_iovars[]; - -extern int wlc_doiovar(void *hdl, const bcm_iovar_t *vi, u32 actionid, - const char *name, void *params, uint p_len, void *arg, - int len, int val_size, struct wlc_if *wlcif); - #if defined(BCMDBG) extern void wlc_print_ies(struct wlc_info *wlc, u8 *ies, uint ies_len); #endif diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_pub.h b/drivers/staging/brcm80211/brcmsmac/wlc_pub.h index 88b09674d7b1..b3a79ab6f0a1 100644 --- a/drivers/staging/brcm80211/brcmsmac/wlc_pub.h +++ b/drivers/staging/brcm80211/brcmsmac/wlc_pub.h @@ -370,6 +370,13 @@ typedef struct wl_rxsts { #define WL_RXS_NFRM_AMSDU_FIRST 0x00000004 /* first MSDU in A-MSDU */ #define WL_RXS_NFRM_AMSDU_SUB 0x00000008 /* subsequent MSDU(s) in A-MSDU */ +enum wlc_par_id { + IOV_MPC = 1, + IOV_RTSTHRESH, + IOV_QTXPOWER, + IOV_BCN_LI_BCN /* Beacon listen interval in # of beacons */ +}; + /* forward declare and use the struct notation so we don't have to * have it defined if not necessary. */ @@ -492,8 +499,6 @@ extern uint wlc_down(struct wlc_info *wlc); extern int wlc_set(struct wlc_info *wlc, int cmd, int arg); extern int wlc_get(struct wlc_info *wlc, int cmd, int *arg); -extern int wlc_iovar_getint(struct wlc_info *wlc, const char *name, int *arg); -extern int wlc_iovar_setint(struct wlc_info *wlc, const char *name, int arg); extern bool wlc_chipmatch(u16 vendor, u16 device); extern void wlc_init(struct wlc_info *wlc); extern void wlc_reset(struct wlc_info *wlc); @@ -506,9 +511,6 @@ extern bool wlc_isr(struct wlc_info *wlc, bool *wantdpc); extern bool wlc_dpc(struct wlc_info *wlc, bool bounded); extern bool wlc_sendpkt_mac80211(struct wlc_info *wlc, struct sk_buff *sdu, struct ieee80211_hw *hw); -extern int wlc_iovar_op(struct wlc_info *wlc, const char *name, void *params, - int p_len, void *arg, int len, bool set, - struct wlc_if *wlcif); extern int wlc_ioctl(struct wlc_info *wlc, int cmd, void *arg, int len, struct wlc_if *wlcif); extern bool wlc_aggregatable(struct wlc_info *wlc, u8 tid); @@ -534,18 +536,15 @@ extern void wlc_default_rateset(struct wlc_info *wlc, wlc_rateset_t *rs); struct ieee80211_sta; extern void wlc_ampdu_flush(struct wlc_info *wlc, struct ieee80211_sta *sta, u16 tid); +int wlc_set_par(struct wlc_info *wlc, enum wlc_par_id par_id, int val); +int wlc_get_par(struct wlc_info *wlc, enum wlc_par_id par_id, int *ret_int_ptr); /* wlc_phy.c helper functions */ extern void wlc_set_ps_ctrl(struct wlc_info *wlc); extern void wlc_mctrl(struct wlc_info *wlc, u32 mask, u32 val); -/* ioctl */ -extern int wlc_iovar_check(struct wlc_pub *pub, const bcm_iovar_t *vi, - void *arg, - int len, bool set); - -extern int wlc_module_register(struct wlc_pub *pub, const bcm_iovar_t *iovars, - const char *name, void *hdl, iovar_fn_t iovar_fn, +extern int wlc_module_register(struct wlc_pub *pub, + const char *name, void *hdl, watchdog_fn_t watchdog_fn, down_fn_t down_fn); extern int wlc_module_unregister(struct wlc_pub *pub, const char *name, void *hdl); -- 2.20.1