diff options
| author | Arend van Spriel <arend@broadcom.com> | 2011-05-09 16:33:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-10 11:12:29 -0700 |
| commit | dc1e961668d148fa5c2784ac51a9a78cb7274cf3 (patch) | |
| tree | b1121a623a9c77b79ab820bf984683a5cbbcd952 | |
| parent | 83dcec0904db64c7b5867f9a7621af0c8998d26a (diff) | |
| download | op-kernel-dev-dc1e961668d148fa5c2784ac51a9a78cb7274cf3.zip op-kernel-dev-dc1e961668d148fa5c2784ac51a9a78cb7274cf3.tar.gz | |
staging: brcm80211: use int_sqrt kernel function iso driver implementation
The driver code had its own implementation for fixed point square root
calculation, but such a function is already available in the linux
kernel so the driver implementation has been removed using the kernel
function.
Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Reviewed-by: Roland Vossen <rvossen@broadcoom.com>
Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
4 files changed, 2 insertions, 22 deletions
diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c index 8b86e37..7837c73 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c @@ -3117,25 +3117,6 @@ u8 wlc_phy_nbits(s32 value) return nbits; } -u32 wlc_phy_sqrt_int(u32 value) -{ - u32 root = 0, shift = 0; - - for (shift = 0; shift < 32; shift += 2) { - if (((0x40000000 >> shift) + root) <= value) { - value -= ((0x40000000 >> shift) + root); - root = (root >> 1) | (0x40000000 >> shift); - } else { - root = root >> 1; - } - } - - if (root < value) - ++root; - - return root; -} - void wlc_phy_stf_chain_init(wlc_phy_t *pih, u8 txchain, u8 rxchain) { phy_info_t *pi = (phy_info_t *) pih; diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h index 77c6106..10cbf52 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h @@ -1025,7 +1025,6 @@ extern void wlc_phy_txpower_update_shm(phy_info_t *pi); extern void wlc_phy_cordic(fixed theta, cs32 *val); extern u8 wlc_phy_nbits(s32 value); -extern u32 wlc_phy_sqrt_int(u32 value); extern void wlc_phy_compute_dB(u32 *cmplx_pwr, s8 *p_dB, u8 core); extern uint wlc_phy_init_radio_regs_allbands(phy_info_t *pi, diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c index a28633c..b8864c5 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_lcn.c @@ -3244,7 +3244,7 @@ static bool wlc_lcnphy_calc_rx_iq_comp(phy_info_t *pi, u16 num_samps) } b /= temp; b -= a * a; - b = (s32) wlc_phy_sqrt_int((u32) b); + b = (s32) int_sqrt((unsigned long) b); b -= (1 << 10); a0_new = (u16) (a & 0x3ff); b0_new = (u16) (b & 0x3ff); diff --git a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c index 56e0ba1..af247f5 100644 --- a/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c +++ b/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c @@ -24608,7 +24608,7 @@ static void wlc_phy_calc_rx_iq_comp_nphy(phy_info_t *pi, u8 core_mask) } b /= temp; b -= a * a; - b = (s32) wlc_phy_sqrt_int((u32) b); + b = (s32) int_sqrt((unsigned long) b); b -= (1 << 10); if ((curr_core == PHY_CORE_0) && (core_mask & 0x1)) { |
