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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 18:54:29 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 18:54:29 (GMT)
commit28f3d717618156c0dcd2f497d791b578a7931d87 (patch)
tree37b11581b51929b5473541e53bd242b3e1a9f666 /drivers/net/wireless/brcm80211/brcmsmac/otp.c
parent654443e20dfc0617231f28a07c96a979ee1a0239 (diff)
parent1ca7ee30630e1022dbcf1b51be20580815ffab73 (diff)
downloadlinux-28f3d717618156c0dcd2f497d791b578a7931d87.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull more networking updates from David Miller: "Ok, everything from here on out will be bug fixes." 1) One final sync of wireless and bluetooth stuff from John Linville. These changes have all been in his tree for more than a week, and therefore have had the necessary -next exposure. John was just away on a trip and didn't have a change to send the pull request until a day or two ago. 2) Put back some defines in user exposed header file areas that were removed during the tokenring purge. From Stephen Hemminger and Paul Gortmaker. 3) A bug fix for UDP hash table allocation got lost in the pile due to one of those "you got it.. no I've got it.." situations. :-) From Tim Bird. 4) SKB coalescing in TCP needs to have stricter checks, otherwise we'll try to coalesce overlapping frags and crash. Fix from Eric Dumazet. 5) RCU routing table lookups can race with free_fib_info(), causing crashes when we deref the device pointers in the route. Fix by releasing the net device in the RCU callback. From Yanmin Zhang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits) tcp: take care of overlaps in tcp_try_coalesce() ipv4: fix the rcu race between free_fib_info and ip_route_output_slow mm: add a low limit to alloc_large_system_hash ipx: restore token ring define to include/linux/ipx.h if: restore token ring ARP type to header xen: do not disable netfront in dom0 phy/micrel: Fix ID of KSZ9021 mISDN: Add X-Tensions USB ISDN TA XC-525 gianfar:don't add FCB length to hard_header_len Bluetooth: Report proper error number in disconnection Bluetooth: Create flags for bt_sk() Bluetooth: report the right security level in getsockopt Bluetooth: Lock the L2CAP channel when sending Bluetooth: Restore locking semantics when looking up L2CAP channels Bluetooth: Fix a redundant and problematic incoming MTU check Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C Bluetooth: Fix EIR data generation for mgmt_device_found Bluetooth: Fix Inquiry with RSSI event mask Bluetooth: improve readability of l2cap_seq_list code Bluetooth: Fix skb length calculation ...
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/otp.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmsmac/otp.c410
1 files changed, 0 insertions, 410 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/otp.c b/drivers/net/wireless/brcm80211/brcmsmac/otp.c
deleted file mode 100644
index f1ca126..0000000
--- a/drivers/net/wireless/brcm80211/brcmsmac/otp.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/io.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-
-#include <brcm_hw_ids.h>
-#include <chipcommon.h>
-#include "aiutils.h"
-#include "otp.h"
-
-#define OTPS_GUP_MASK 0x00000f00
-#define OTPS_GUP_SHIFT 8
-/* h/w subregion is programmed */
-#define OTPS_GUP_HW 0x00000100
-/* s/w subregion is programmed */
-#define OTPS_GUP_SW 0x00000200
-/* chipid/pkgopt subregion is programmed */
-#define OTPS_GUP_CI 0x00000400
-/* fuse subregion is programmed */
-#define OTPS_GUP_FUSE 0x00000800
-
-/* Fields in otpprog in rev >= 21 */
-#define OTPP_COL_MASK 0x000000ff
-#define OTPP_COL_SHIFT 0
-#define OTPP_ROW_MASK 0x0000ff00
-#define OTPP_ROW_SHIFT 8
-#define OTPP_OC_MASK 0x0f000000
-#define OTPP_OC_SHIFT 24
-#define OTPP_READERR 0x10000000
-#define OTPP_VALUE_MASK 0x20000000
-#define OTPP_VALUE_SHIFT 29
-#define OTPP_START_BUSY 0x80000000
-#define OTPP_READ 0x40000000
-
-/* Opcodes for OTPP_OC field */
-#define OTPPOC_READ 0
-#define OTPPOC_BIT_PROG 1
-#define OTPPOC_VERIFY 3
-#define OTPPOC_INIT 4
-#define OTPPOC_SET 5
-#define OTPPOC_RESET 6
-#define OTPPOC_OCST 7
-#define OTPPOC_ROW_LOCK 8
-#define OTPPOC_PRESCN_TEST 9
-
-#define OTPTYPE_IPX(ccrev) ((ccrev) == 21 || (ccrev) >= 23)
-
-#define OTPP_TRIES 10000000 /* # of tries for OTPP */
-
-#define MAXNUMRDES 9 /* Maximum OTP redundancy entries */
-
-/* Fixed size subregions sizes in words */
-#define OTPGU_CI_SZ 2
-
-struct otpinfo;
-
-/* OTP function struct */
-struct otp_fn_s {
- int (*init)(struct si_pub *sih, struct otpinfo *oi);
- int (*read_region)(struct otpinfo *oi, int region, u16 *data,
- uint *wlen);
-};
-
-struct otpinfo {
- struct bcma_device *core; /* chipc core */
- const struct otp_fn_s *fn; /* OTP functions */
- struct si_pub *sih; /* Saved sb handle */
-
- /* IPX OTP section */
- u16 wsize; /* Size of otp in words */
- u16 rows; /* Geometry */
- u16 cols; /* Geometry */
- u32 status; /* Flag bits (lock/prog/rv).
- * (Reflected only when OTP is power cycled)
- */
- u16 hwbase; /* hardware subregion offset */
- u16 hwlim; /* hardware subregion boundary */
- u16 swbase; /* software subregion offset */
- u16 swlim; /* software subregion boundary */
- u16 fbase; /* fuse subregion offset */
- u16 flim; /* fuse subregion boundary */
- int otpgu_base; /* offset to General Use Region */
-};
-
-/* OTP layout */
-/* CC revs 21, 24 and 27 OTP General Use Region word offset */
-#define REVA4_OTPGU_BASE 12
-
-/* CC revs 23, 25, 26, 28 and above OTP General Use Region word offset */
-#define REVB8_OTPGU_BASE 20
-
-/* CC rev 36 OTP General Use Region word offset */
-#define REV36_OTPGU_BASE 12
-
-/* Subregion word offsets in General Use region */
-#define OTPGU_HSB_OFF 0
-#define OTPGU_SFB_OFF 1
-#define OTPGU_CI_OFF 2
-#define OTPGU_P_OFF 3
-#define OTPGU_SROM_OFF 4
-
-/* Flag bit offsets in General Use region */
-#define OTPGU_HWP_OFF 60
-#define OTPGU_SWP_OFF 61
-#define OTPGU_CIP_OFF 62
-#define OTPGU_FUSEP_OFF 63
-#define OTPGU_CIP_MSK 0x4000
-#define OTPGU_P_MSK 0xf000
-#define OTPGU_P_SHIFT (OTPGU_HWP_OFF % 16)
-
-/* OTP Size */
-#define OTP_SZ_FU_324 ((roundup(324, 8))/8) /* 324 bits */
-#define OTP_SZ_FU_288 (288/8) /* 288 bits */
-#define OTP_SZ_FU_216 (216/8) /* 216 bits */
-#define OTP_SZ_FU_72 (72/8) /* 72 bits */
-#define OTP_SZ_CHECKSUM (16/8) /* 16 bits */
-#define OTP4315_SWREG_SZ 178 /* 178 bytes */
-#define OTP_SZ_FU_144 (144/8) /* 144 bits */
-
-static u16
-ipxotp_otpr(struct otpinfo *oi, uint wn)
-{
- return bcma_read16(oi->core,
- CHIPCREGOFFS(sromotp[wn]));
-}
-
-/*
- * Calculate max HW/SW region byte size by subtracting fuse region
- * and checksum size, osizew is oi->wsize (OTP size - GU size) in words
- */
-static int ipxotp_max_rgnsz(struct si_pub *sih, int osizew)
-{
- int ret = 0;
-
- switch (ai_get_chip_id(sih)) {
- case BCM43224_CHIP_ID:
- case BCM43225_CHIP_ID:
- ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
- break;
- case BCM4313_CHIP_ID:
- ret = osizew * 2 - OTP_SZ_FU_72 - OTP_SZ_CHECKSUM;
- break;
- default:
- break; /* Don't know about this chip */
- }
-
- return ret;
-}
-
-static void _ipxotp_init(struct otpinfo *oi)
-{
- uint k;
- u32 otpp, st;
- int ccrev = ai_get_ccrev(oi->sih);
-
-
- /*
- * record word offset of General Use Region
- * for various chipcommon revs
- */
- if (ccrev == 21 || ccrev == 24
- || ccrev == 27) {
- oi->otpgu_base = REVA4_OTPGU_BASE;
- } else if (ccrev == 36) {
- /*
- * OTP size greater than equal to 2KB (128 words),
- * otpgu_base is similar to rev23
- */
- if (oi->wsize >= 128)
- oi->otpgu_base = REVB8_OTPGU_BASE;
- else
- oi->otpgu_base = REV36_OTPGU_BASE;
- } else if (ccrev == 23 || ccrev >= 25) {
- oi->otpgu_base = REVB8_OTPGU_BASE;
- }
-
- /* First issue an init command so the status is up to date */
- otpp =
- OTPP_START_BUSY | ((OTPPOC_INIT << OTPP_OC_SHIFT) & OTPP_OC_MASK);
-
- bcma_write32(oi->core, CHIPCREGOFFS(otpprog), otpp);
- st = bcma_read32(oi->core, CHIPCREGOFFS(otpprog));
- for (k = 0; (st & OTPP_START_BUSY) && (k < OTPP_TRIES); k++)
- st = bcma_read32(oi->core, CHIPCREGOFFS(otpprog));
- if (k >= OTPP_TRIES)
- return;
-
- /* Read OTP lock bits and subregion programmed indication bits */
- oi->status = bcma_read32(oi->core, CHIPCREGOFFS(otpstatus));
-
- if ((ai_get_chip_id(oi->sih) == BCM43224_CHIP_ID)
- || (ai_get_chip_id(oi->sih) == BCM43225_CHIP_ID)) {
- u32 p_bits;
- p_bits = (ipxotp_otpr(oi, oi->otpgu_base + OTPGU_P_OFF) &
- OTPGU_P_MSK) >> OTPGU_P_SHIFT;
- oi->status |= (p_bits << OTPS_GUP_SHIFT);
- }
-
- /*
- * h/w region base and fuse region limit are fixed to
- * the top and the bottom of the general use region.
- * Everything else can be flexible.
- */
- oi->hwbase = oi->otpgu_base + OTPGU_SROM_OFF;
- oi->hwlim = oi->wsize;
- if (oi->status & OTPS_GUP_HW) {
- oi->hwlim =
- ipxotp_otpr(oi, oi->otpgu_base + OTPGU_HSB_OFF) / 16;
- oi->swbase = oi->hwlim;
- } else
- oi->swbase = oi->hwbase;
-
- /* subtract fuse and checksum from beginning */
- oi->swlim = ipxotp_max_rgnsz(oi->sih, oi->wsize) / 2;
-
- if (oi->status & OTPS_GUP_SW) {
- oi->swlim =
- ipxotp_otpr(oi, oi->otpgu_base + OTPGU_SFB_OFF) / 16;
- oi->fbase = oi->swlim;
- } else
- oi->fbase = oi->swbase;
-
- oi->flim = oi->wsize;
-}
-
-static int ipxotp_init(struct si_pub *sih, struct otpinfo *oi)
-{
- /* Make sure we're running IPX OTP */
- if (!OTPTYPE_IPX(ai_get_ccrev(sih)))
- return -EBADE;
-
- /* Make sure OTP is not disabled */
- if (ai_is_otp_disabled(sih))
- return -EBADE;
-
- /* Check for otp size */
- switch ((ai_get_cccaps(sih) & CC_CAP_OTPSIZE) >> CC_CAP_OTPSIZE_SHIFT) {
- case 0:
- /* Nothing there */
- return -EBADE;
- case 1: /* 32x64 */
- oi->rows = 32;
- oi->cols = 64;
- oi->wsize = 128;
- break;
- case 2: /* 64x64 */
- oi->rows = 64;
- oi->cols = 64;
- oi->wsize = 256;
- break;
- case 5: /* 96x64 */
- oi->rows = 96;
- oi->cols = 64;
- oi->wsize = 384;
- break;
- case 7: /* 16x64 *//* 1024 bits */
- oi->rows = 16;
- oi->cols = 64;
- oi->wsize = 64;
- break;
- default:
- /* Don't know the geometry */
- return -EBADE;
- }
-
- /* Retrieve OTP region info */
- _ipxotp_init(oi);
- return 0;
-}
-
-static int
-ipxotp_read_region(struct otpinfo *oi, int region, u16 *data, uint *wlen)
-{
- uint base, i, sz;
-
- /* Validate region selection */
- switch (region) {
- case OTP_HW_RGN:
- sz = (uint) oi->hwlim - oi->hwbase;
- if (!(oi->status & OTPS_GUP_HW)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->hwbase;
- break;
- case OTP_SW_RGN:
- sz = ((uint) oi->swlim - oi->swbase);
- if (!(oi->status & OTPS_GUP_SW)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->swbase;
- break;
- case OTP_CI_RGN:
- sz = OTPGU_CI_SZ;
- if (!(oi->status & OTPS_GUP_CI)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->otpgu_base + OTPGU_CI_OFF;
- break;
- case OTP_FUSE_RGN:
- sz = (uint) oi->flim - oi->fbase;
- if (!(oi->status & OTPS_GUP_FUSE)) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->fbase;
- break;
- case OTP_ALL_RGN:
- sz = ((uint) oi->flim - oi->hwbase);
- if (!(oi->status & (OTPS_GUP_HW | OTPS_GUP_SW))) {
- *wlen = sz;
- return -ENODATA;
- }
- if (*wlen < sz) {
- *wlen = sz;
- return -EOVERFLOW;
- }
- base = oi->hwbase;
- break;
- default:
- return -EINVAL;
- }
-
- /* Read the data */
- for (i = 0; i < sz; i++)
- data[i] = ipxotp_otpr(oi, base + i);
-
- *wlen = sz;
- return 0;
-}
-
-static const struct otp_fn_s ipxotp_fn = {
- (int (*)(struct si_pub *, struct otpinfo *)) ipxotp_init,
- (int (*)(struct otpinfo *, int, u16 *, uint *)) ipxotp_read_region,
-};
-
-static int otp_init(struct si_pub *sih, struct otpinfo *oi)
-{
- int ret;
-
- memset(oi, 0, sizeof(struct otpinfo));
-
- oi->core = ai_findcore(sih, BCMA_CORE_CHIPCOMMON, 0);
-
- if (OTPTYPE_IPX(ai_get_ccrev(sih)))
- oi->fn = &ipxotp_fn;
-
- if (oi->fn == NULL)
- return -EBADE;
-
- oi->sih = sih;
-
- ret = (oi->fn->init)(sih, oi);
-
- return ret;
-}
-
-int
-otp_read_region(struct si_pub *sih, int region, u16 *data, uint *wlen) {
- struct otpinfo otpinfo;
- struct otpinfo *oi = &otpinfo;
- int err = 0;
-
- if (ai_is_otp_disabled(sih)) {
- err = -EPERM;
- goto out;
- }
-
- err = otp_init(sih, oi);
- if (err)
- goto out;
-
- err = ((oi)->fn->read_region)(oi, region, data, wlen);
-
- out:
- return err;
-}