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path: root/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
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Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c794
1 files changed, 402 insertions, 392 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 35fc68be158d..d2487518bd2a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -31,6 +31,7 @@
#include <linux/bcma/bcma.h>
#include <linux/debugfs.h>
#include <linux/vmalloc.h>
+#include <linux/platform_data/brcmfmac-sdio.h>
#include <asm/unaligned.h>
#include <defs.h>
#include <brcmu_wifi.h>
@@ -94,6 +95,7 @@ struct rte_console {
#include "dhd_bus.h"
#include "dhd_dbg.h"
+#include "tracepoint.h"
#define TXQLEN 2048 /* bulk tx queue length */
#define TXHI (TXQLEN - 256) /* turn on flow control above TXHI */
@@ -323,6 +325,9 @@ MODULE_FIRMWARE(BRCMF_SDIO_NV_NAME);
*/
#define BRCMF_IDLE_INTERVAL 1
+#define KSO_WAIT_US 50
+#define MAX_KSO_ATTEMPTS (PMU_MAX_TRANSITION_DLY/KSO_WAIT_US)
+
/*
* Conversion of 802.1D priority to precedence level
*/
@@ -332,95 +337,6 @@ static uint prio2prec(u32 prio)
(prio^2) : prio;
}
-/* core registers */
-struct sdpcmd_regs {
- u32 corecontrol; /* 0x00, rev8 */
- u32 corestatus; /* rev8 */
- u32 PAD[1];
- u32 biststatus; /* rev8 */
-
- /* PCMCIA access */
- u16 pcmciamesportaladdr; /* 0x010, rev8 */
- u16 PAD[1];
- u16 pcmciamesportalmask; /* rev8 */
- u16 PAD[1];
- u16 pcmciawrframebc; /* rev8 */
- u16 PAD[1];
- u16 pcmciaunderflowtimer; /* rev8 */
- u16 PAD[1];
-
- /* interrupt */
- u32 intstatus; /* 0x020, rev8 */
- u32 hostintmask; /* rev8 */
- u32 intmask; /* rev8 */
- u32 sbintstatus; /* rev8 */
- u32 sbintmask; /* rev8 */
- u32 funcintmask; /* rev4 */
- u32 PAD[2];
- u32 tosbmailbox; /* 0x040, rev8 */
- u32 tohostmailbox; /* rev8 */
- u32 tosbmailboxdata; /* rev8 */
- u32 tohostmailboxdata; /* rev8 */
-
- /* synchronized access to registers in SDIO clock domain */
- u32 sdioaccess; /* 0x050, rev8 */
- u32 PAD[3];
-
- /* PCMCIA frame control */
- u8 pcmciaframectrl; /* 0x060, rev8 */
- u8 PAD[3];
- u8 pcmciawatermark; /* rev8 */
- u8 PAD[155];
-
- /* interrupt batching control */
- u32 intrcvlazy; /* 0x100, rev8 */
- u32 PAD[3];
-
- /* counters */
- u32 cmd52rd; /* 0x110, rev8 */
- u32 cmd52wr; /* rev8 */
- u32 cmd53rd; /* rev8 */
- u32 cmd53wr; /* rev8 */
- u32 abort; /* rev8 */
- u32 datacrcerror; /* rev8 */
- u32 rdoutofsync; /* rev8 */
- u32 wroutofsync; /* rev8 */
- u32 writebusy; /* rev8 */
- u32 readwait; /* rev8 */
- u32 readterm; /* rev8 */
- u32 writeterm; /* rev8 */
- u32 PAD[40];
- u32 clockctlstatus; /* rev8 */
- u32 PAD[7];
-
- u32 PAD[128]; /* DMA engines */
-
- /* SDIO/PCMCIA CIS region */
- char cis[512]; /* 0x400-0x5ff, rev6 */
-
- /* PCMCIA function control registers */
- char pcmciafcr[256]; /* 0x600-6ff, rev6 */
- u16 PAD[55];
-
- /* PCMCIA backplane access */
- u16 backplanecsr; /* 0x76E, rev6 */
- u16 backplaneaddr0; /* rev6 */
- u16 backplaneaddr1; /* rev6 */
- u16 backplaneaddr2; /* rev6 */
- u16 backplaneaddr3; /* rev6 */
- u16 backplanedata0; /* rev6 */
- u16 backplanedata1; /* rev6 */
- u16 backplanedata2; /* rev6 */
- u16 backplanedata3; /* rev6 */
- u16 PAD[31];
-
- /* sprom "size" & "blank" info */
- u16 spromstatus; /* 0x7BE, rev2 */
- u32 PAD[464];
-
- u16 PAD[0x80];
-};
-
#ifdef DEBUG
/* Device console log buffer state */
struct brcmf_console {
@@ -587,12 +503,14 @@ struct brcmf_sdio {
bool txoff; /* Transmit flow-controlled */
struct brcmf_sdio_count sdcnt;
+ bool sr_enabled; /* SaveRestore enabled */
+ bool sleeping; /* SDIO bus sleeping */
};
/* clkstate */
#define CLK_NONE 0
#define CLK_SDONLY 1
-#define CLK_PENDING 2 /* Not used yet */
+#define CLK_PENDING 2
#define CLK_AVAIL 3
#ifdef DEBUG
@@ -600,7 +518,7 @@ static int qcount[NUMPRIO];
static int tx_packets[NUMPRIO];
#endif /* DEBUG */
-#define SDIO_DRIVE_STRENGTH 6 /* in milliamps */
+#define DEFAULT_SDIO_DRIVE_STRENGTH 6 /* in milliamps */
#define RETRYCHAN(chan) ((chan) == SDPCM_EVENT_CHANNEL)
@@ -664,6 +582,62 @@ w_sdreg32(struct brcmf_sdio *bus, u32 regval, u32 reg_offset)
return ret;
}
+static int
+brcmf_sdbrcm_kso_control(struct brcmf_sdio *bus, bool on)
+{
+ u8 wr_val = 0, rd_val, cmp_val, bmask;
+ int err = 0;
+ int try_cnt = 0;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ wr_val = (on << SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
+ /* 1st KSO write goes to AOS wake up core if device is asleep */
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+ wr_val, &err);
+ if (err) {
+ brcmf_err("SDIO_AOS KSO write error: %d\n", err);
+ return err;
+ }
+
+ if (on) {
+ /* device WAKEUP through KSO:
+ * write bit 0 & read back until
+ * both bits 0 (kso bit) & 1 (dev on status) are set
+ */
+ cmp_val = SBSDIO_FUNC1_SLEEPCSR_KSO_MASK |
+ SBSDIO_FUNC1_SLEEPCSR_DEVON_MASK;
+ bmask = cmp_val;
+ usleep_range(2000, 3000);
+ } else {
+ /* Put device to sleep, turn off KSO */
+ cmp_val = 0;
+ /* only check for bit0, bit1(dev on status) may not
+ * get cleared right away
+ */
+ bmask = SBSDIO_FUNC1_SLEEPCSR_KSO_MASK;
+ }
+
+ do {
+ /* reliable KSO bit set/clr:
+ * the sdiod sleep write access is synced to PMU 32khz clk
+ * just one write attempt may fail,
+ * read it back until it matches written value
+ */
+ rd_val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+ &err);
+ if (((rd_val & bmask) == cmp_val) && !err)
+ break;
+ brcmf_dbg(SDIO, "KSO wr/rd retry:%d (max: %d) ERR:%x\n",
+ try_cnt, MAX_KSO_ATTEMPTS, err);
+ udelay(KSO_WAIT_US);
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+ wr_val, &err);
+ } while (try_cnt++ < MAX_KSO_ATTEMPTS);
+
+ return err;
+}
+
#define PKT_AVAILABLE() (intstatus & I_HMB_FRAME_IND)
#define HOSTINTMASK (I_HMB_SW_MASK | I_CHIPACTIVE)
@@ -675,10 +649,15 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
u8 clkctl, clkreq, devctl;
unsigned long timeout;
- brcmf_dbg(TRACE, "Enter\n");
+ brcmf_dbg(SDIO, "Enter\n");
clkctl = 0;
+ if (bus->sr_enabled) {
+ bus->clkstate = (on ? CLK_AVAIL : CLK_SDONLY);
+ return 0;
+ }
+
if (on) {
/* Request HT Avail */
clkreq =
@@ -713,7 +692,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
devctl |= SBSDIO_DEVCTL_CA_INT_ONLY;
brcmf_sdio_regwb(bus->sdiodev, SBSDIO_DEVICE_CTL,
devctl, &err);
- brcmf_dbg(INFO, "CLKCTL: set PENDING\n");
+ brcmf_dbg(SDIO, "CLKCTL: set PENDING\n");
bus->clkstate = CLK_PENDING;
return 0;
@@ -750,7 +729,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
/* Mark clock available */
bus->clkstate = CLK_AVAIL;
- brcmf_dbg(INFO, "CLKCTL: turned ON\n");
+ brcmf_dbg(SDIO, "CLKCTL: turned ON\n");
#if defined(DEBUG)
if (!bus->alp_only) {
@@ -775,7 +754,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
bus->clkstate = CLK_SDONLY;
brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
clkreq, &err);
- brcmf_dbg(INFO, "CLKCTL: turned OFF\n");
+ brcmf_dbg(SDIO, "CLKCTL: turned OFF\n");
if (err) {
brcmf_err("Failed access turning clock off: %d\n",
err);
@@ -788,7 +767,7 @@ static int brcmf_sdbrcm_htclk(struct brcmf_sdio *bus, bool on, bool pendok)
/* Change idle/active SD state */
static int brcmf_sdbrcm_sdclk(struct brcmf_sdio *bus, bool on)
{
- brcmf_dbg(TRACE, "Enter\n");
+ brcmf_dbg(SDIO, "Enter\n");
if (on)
bus->clkstate = CLK_SDONLY;
@@ -805,7 +784,7 @@ static int brcmf_sdbrcm_clkctl(struct brcmf_sdio *bus, uint target, bool pendok)
uint oldstate = bus->clkstate;
#endif /* DEBUG */
- brcmf_dbg(TRACE, "Enter\n");
+ brcmf_dbg(SDIO, "Enter\n");
/* Early exit if we're already there */
if (bus->clkstate == target) {
@@ -849,12 +828,69 @@ static int brcmf_sdbrcm_clkctl(struct brcmf_sdio *bus, uint target, bool pendok)
break;
}
#ifdef DEBUG
- brcmf_dbg(INFO, "%d -> %d\n", oldstate, bus->clkstate);
+ brcmf_dbg(SDIO, "%d -> %d\n", oldstate, bus->clkstate);
#endif /* DEBUG */
return 0;
}
+static int
+brcmf_sdbrcm_bus_sleep(struct brcmf_sdio *bus, bool sleep, bool pendok)
+{
+ int err = 0;
+ brcmf_dbg(TRACE, "Enter\n");
+ brcmf_dbg(SDIO, "request %s currently %s\n",
+ (sleep ? "SLEEP" : "WAKE"),
+ (bus->sleeping ? "SLEEP" : "WAKE"));
+
+ /* If SR is enabled control bus state with KSO */
+ if (bus->sr_enabled) {
+ /* Done if we're already in the requested state */
+ if (sleep == bus->sleeping)
+ goto end;
+
+ /* Going to sleep */
+ if (sleep) {
+ /* Don't sleep if something is pending */
+ if (atomic_read(&bus->intstatus) ||
+ atomic_read(&bus->ipend) > 0 ||
+ (!atomic_read(&bus->fcstate) &&
+ brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol) &&
+ data_ok(bus)))
+ return -EBUSY;
+ err = brcmf_sdbrcm_kso_control(bus, false);
+ /* disable watchdog */
+ if (!err)
+ brcmf_sdbrcm_wd_timer(bus, 0);
+ } else {
+ bus->idlecount = 0;
+ err = brcmf_sdbrcm_kso_control(bus, true);
+ }
+ if (!err) {
+ /* Change state */
+ bus->sleeping = sleep;
+ brcmf_dbg(SDIO, "new state %s\n",
+ (sleep ? "SLEEP" : "WAKE"));
+ } else {
+ brcmf_err("error while changing bus sleep state %d\n",
+ err);
+ return err;
+ }
+ }
+
+end:
+ /* control clocks */
+ if (sleep) {
+ if (!bus->sr_enabled)
+ brcmf_sdbrcm_clkctl(bus, CLK_NONE, pendok);
+ } else {
+ brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, pendok);
+ }
+
+ return err;
+
+}
+
static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
{
u32 intstatus = 0;
@@ -862,7 +898,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
u8 fcbits;
int ret;
- brcmf_dbg(TRACE, "Enter\n");
+ brcmf_dbg(SDIO, "Enter\n");
/* Read mailbox data and ack that we did so */
ret = r_sdreg32(bus, &hmb_data,
@@ -875,7 +911,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
/* Dongle recomposed rx frames, accept them again */
if (hmb_data & HMB_DATA_NAKHANDLED) {
- brcmf_dbg(INFO, "Dongle reports NAK handled, expect rtx of %d\n",
+ brcmf_dbg(SDIO, "Dongle reports NAK handled, expect rtx of %d\n",
bus->rx_seq);
if (!bus->rxskip)
brcmf_err("unexpected NAKHANDLED!\n");
@@ -896,7 +932,7 @@ static u32 brcmf_sdbrcm_hostmail(struct brcmf_sdio *bus)
"expecting %d\n",
bus->sdpcm_ver, SDPCM_PROT_VERSION);
else
- brcmf_dbg(INFO, "Dongle ready, protocol version %d\n",
+ brcmf_dbg(SDIO, "Dongle ready, protocol version %d\n",
bus->sdpcm_ver);
}
@@ -970,7 +1006,7 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
if (!retries)
brcmf_err("count never zeroed: last 0x%04x\n", lastrbc);
else
- brcmf_dbg(INFO, "flush took %d iterations\n", 0xffff - retries);
+ brcmf_dbg(SDIO, "flush took %d iterations\n", 0xffff - retries);
if (rtx) {
bus->sdcnt.rxrtx++;
@@ -1173,7 +1209,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
/* If packets, issue read(s) and send up packet chain */
/* Return sequence numbers consumed? */
- brcmf_dbg(TRACE, "start: glomd %p glom %p\n",
+ brcmf_dbg(SDIO, "start: glomd %p glom %p\n",
bus->glomd, skb_peek(&bus->glom));
/* If there's a descriptor, generate the packet chain */
@@ -1546,7 +1582,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
struct sk_buff_head pktlist; /* needed for bus interface */
u16 pad; /* Number of pad bytes to read */
uint rxleft = 0; /* Remaining number of frames allowed */
- int sdret; /* Return code from calls */
+ int ret; /* Return code from calls */
uint rxcount = 0; /* Total frames read */
struct brcmf_sdio_read *rd = &bus->cur_read, rd_new;
u8 head_read = 0;
@@ -1577,15 +1613,15 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
/* read header first for unknow frame length */
sdio_claim_host(bus->sdiodev->func[1]);
if (!rd->len) {
- sdret = brcmf_sdcard_recv_buf(bus->sdiodev,
+ ret = brcmf_sdcard_recv_buf(bus->sdiodev,
bus->sdiodev->sbwad,
SDIO_FUNC_2, F2SYNC,
bus->rxhdr,
BRCMF_FIRSTREAD);
bus->sdcnt.f2rxhdrs++;
- if (sdret < 0) {
+ if (ret < 0) {
brcmf_err("RXHEADER FAILED: %d\n",
- sdret);
+ ret);
bus->sdcnt.rx_hdrfail++;
brcmf_sdbrcm_rxfail(bus, true, true);
sdio_release_host(bus->sdiodev->func[1]);
@@ -1637,14 +1673,14 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
skb_pull(pkt, head_read);
pkt_align(pkt, rd->len_left, BRCMF_SDALIGN);
- sdret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
+ ret = brcmf_sdcard_recv_pkt(bus->sdiodev, bus->sdiodev->sbwad,
SDIO_FUNC_2, F2SYNC, pkt);
bus->sdcnt.f2rxdata++;
sdio_release_host(bus->sdiodev->func[1]);
- if (sdret < 0) {
+ if (ret < 0) {
brcmf_err("read %d bytes from channel %d failed: %d\n",
- rd->len, rd->channel, sdret);
+ rd->len, rd->channel, ret);
brcmu_pkt_buf_free_skb(pkt);
sdio_claim_host(bus->sdiodev->func[1]);
brcmf_sdbrcm_rxfail(bus, true,
@@ -1775,13 +1811,12 @@ brcmf_sdbrcm_wait_event_wakeup(struct brcmf_sdio *bus)
/* Writes a HW/SW header into the packet and sends it. */
/* Assumes: (a) header space already there, (b) caller holds lock */
static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
- uint chan, bool free_pkt)
+ uint chan)
{
int ret;
u8 *frame;
u16 len, pad = 0;
u32 swheader;
- struct sk_buff *new;
int i;
brcmf_dbg(TRACE, "Enter\n");
@@ -1795,30 +1830,14 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
brcmf_dbg(INFO, "insufficient headroom %d for %d pad\n",
skb_headroom(pkt), pad);
bus->sdiodev->bus_if->tx_realloc++;
- new = brcmu_pkt_buf_get_skb(pkt->len + BRCMF_SDALIGN);
- if (!new) {
- brcmf_err("couldn't allocate new %d-byte packet\n",
- pkt->len + BRCMF_SDALIGN);
- ret = -ENOMEM;
+ ret = skb_cow(pkt, BRCMF_SDALIGN);
+ if (ret)
goto done;
- }
-
- pkt_align(new, pkt->len, BRCMF_SDALIGN);
- memcpy(new->data, pkt->data, pkt->len);
- if (free_pkt)
- brcmu_pkt_buf_free_skb(pkt);
- /* free the pkt if canned one is not used */
- free_pkt = true;
- pkt = new;
- frame = (u8 *) (pkt->data);
- /* precondition: (frame % BRCMF_SDALIGN) == 0) */
- pad = 0;
- } else {
- skb_push(pkt, pad);
- frame = (u8 *) (pkt->data);
- /* precondition: pad + SDPCM_HDRLEN <= pkt->len */
- memset(frame, 0, pad + SDPCM_HDRLEN);
+ pad = ((unsigned long)frame % BRCMF_SDALIGN);
}
+ skb_push(pkt, pad);
+ frame = (u8 *) (pkt->data);
+ memset(frame, 0, pad + SDPCM_HDRLEN);
}
/* precondition: pad < BRCMF_SDALIGN */
@@ -1833,8 +1852,8 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
(((pad +
SDPCM_HDRLEN) << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
- put_unaligned_le32(swheader, frame + SDPCM_FRAMETAG_LEN);
- put_unaligned_le32(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));
+ *(((__le32 *) frame) + 1) = cpu_to_le32(swheader);
+ *(((__le32 *) frame) + 2) = 0;
#ifdef DEBUG
tx_packets[pkt->priority]++;
@@ -1900,11 +1919,7 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt,
done:
/* restore pkt buffer pointer before calling tx complete routine */
skb_pull(pkt, SDPCM_HDRLEN + pad);
- brcmf_txcomplete(bus->sdiodev->dev, pkt, ret != 0);
-
- if (free_pkt)
- brcmu_pkt_buf_free_skb(pkt);
-
+ brcmf_txcomplete(bus->sdiodev->dev, pkt, ret == 0);
return ret;
}
@@ -1932,7 +1947,7 @@ static uint brcmf_sdbrcm_sendfromq(struct brcmf_sdio *bus, uint maxframes)
spin_unlock_bh(&bus->txqlock);
datalen = pkt->len - SDPCM_HDRLEN;
- ret = brcmf_sdbrcm_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, true);
+ ret = brcmf_sdbrcm_txpkt(bus, pkt, SDPCM_DATA_CHANNEL);
/* In poll mode, need to check for other events */
if (!bus->intr && cnt) {
@@ -1980,7 +1995,7 @@ static void brcmf_sdbrcm_bus_stop(struct device *dev)
sdio_claim_host(bus->sdiodev->func[1]);
/* Enable clock for device interrupts */
- brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+ brcmf_sdbrcm_bus_sleep(bus, false, false);
/* Disable and clear interrupts at the chip level also */
w_sdreg32(bus, 0, offsetof(struct sdpcmd_regs, hostintmask));
@@ -2032,23 +2047,19 @@ static void brcmf_sdbrcm_bus_stop(struct device *dev)
bus->tx_seq = bus->rx_seq = 0;
}
-#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
{
unsigned long flags;
- spin_lock_irqsave(&bus->sdiodev->irq_en_lock, flags);
- if (!bus->sdiodev->irq_en && !atomic_read(&bus->ipend)) {
- enable_irq(bus->sdiodev->irq);
- bus->sdiodev->irq_en = true;
+ if (bus->sdiodev->oob_irq_requested) {
+ spin_lock_irqsave(&bus->sdiodev->irq_en_lock, flags);
+ if (!bus->sdiodev->irq_en && !atomic_read(&bus->ipend)) {
+ enable_irq(bus->sdiodev->pdata->oob_irq_nr);
+ bus->sdiodev->irq_en = true;
+ }
+ spin_unlock_irqrestore(&bus->sdiodev->irq_en_lock, flags);
}
- spin_unlock_irqrestore(&bus->sdiodev->irq_en_lock, flags);
}
-#else
-static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
-{
-}
-#endif /* CONFIG_BRCMFMAC_SDIO_OOB */
static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus)
{
@@ -2116,7 +2127,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
sdio_claim_host(bus->sdiodev->func[1]);
/* If waiting for HTAVAIL, check status */
- if (bus->clkstate == CLK_PENDING) {
+ if (!bus->sr_enabled && bus->clkstate == CLK_PENDING) {
u8 clkctl, devctl = 0;
#ifdef DEBUG
@@ -2138,7 +2149,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
}
- brcmf_dbg(INFO, "DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n",
+ brcmf_dbg(SDIO, "DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n",
devctl, clkctl);
if (SBSDIO_HTAV(clkctl)) {
@@ -2162,7 +2173,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
}
/* Make sure backplane clock is on */
- brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, true);
+ brcmf_sdbrcm_bus_sleep(bus, false, true);
/* Pending interrupt indicates new device status */
if (atomic_read(&bus->ipend) > 0) {
@@ -2308,12 +2319,22 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
if ((bus->clkstate != CLK_PENDING)
&& bus->idletime == BRCMF_IDLE_IMMEDIATE) {
bus->activity = false;
+ brcmf_dbg(SDIO, "idle state\n");
sdio_claim_host(bus->sdiodev->func[1]);
- brcmf_sdbrcm_clkctl(bus, CLK_NONE, false);
+ brcmf_sdbrcm_bus_sleep(bus, true, false);
sdio_release_host(bus->sdiodev->func[1]);
}
}
+static struct pktq *brcmf_sdbrcm_bus_gettxq(struct device *dev)
+{
+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+ struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
+ struct brcmf_sdio *bus = sdiodev->bus;
+
+ return &bus->txq;
+}
+
static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
{
int ret = -EBADE;
@@ -2343,7 +2364,6 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
if (!brcmf_c_prec_enq(bus->sdiodev->dev, &bus->txq, pkt, prec)) {
skb_pull(pkt, SDPCM_HDRLEN);
brcmf_txcomplete(bus->sdiodev->dev, pkt, false);
- brcmu_pkt_buf_free_skb(pkt);
brcmf_err("out of bus->txq !!!\n");
ret = -ENOSR;
} else {
@@ -2374,69 +2394,6 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
return ret;
}
-static int
-brcmf_sdbrcm_membytes(struct brcmf_sdio *bus, bool write, u32 address, u8 *data,
- uint size)
-{
- int bcmerror = 0;
- u32 sdaddr;
- uint dsize;
-
- /* Determine initial transfer parameters */
- sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
- if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
- dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
- else
- dsize = size;
-
- sdio_claim_host(bus->sdiodev->func[1]);
-
- /* Set the backplane window to include the start address */
- bcmerror = brcmf_sdcard_set_sbaddr_window(bus->sdiodev, address);
- if (bcmerror) {
- brcmf_err("window change failed\n");
- goto xfer_done;
- }
-
- /* Do the transfer(s) */
- while (size) {
- brcmf_dbg(INFO, "%s %d bytes at offset 0x%08x in window 0x%08x\n",
- write ? "write" : "read", dsize,
- sdaddr, address & SBSDIO_SBWINDOW_MASK);
- bcmerror = brcmf_sdcard_rwdata(bus->sdiodev, write,
- sdaddr, data, dsize);
- if (bcmerror) {
- brcmf_err("membytes transfer failed\n");
- break;
- }
-
- /* Adjust for next transfer (if any) */
- size -= dsize;
- if (size) {
- data += dsize;
- address += dsize;
- bcmerror = brcmf_sdcard_set_sbaddr_window(bus->sdiodev,
- address);
- if (bcmerror) {
- brcmf_err("window change failed\n");
- break;
- }
- sdaddr = 0;
- dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
- }
- }
-
-xfer_done:
- /* Return the window to backplane enumeration space for core access */
- if (brcmf_sdcard_set_sbaddr_window(bus->sdiodev, bus->sdiodev->sbwad))
- brcmf_err("FAILED to set window back to 0x%x\n",
- bus->sdiodev->sbwad);
-
- sdio_release_host(bus->sdiodev->func[1]);
-
- return bcmerror;
-}
-
#ifdef DEBUG
#define CONSOLE_LINE_MAX 192
@@ -2453,8 +2410,8 @@ static int brcmf_sdbrcm_readconsole(struct brcmf_sdio *bus)
/* Read console log struct */
addr = bus->console_addr + offsetof(struct rte_console, log_le);
- rv = brcmf_sdbrcm_membytes(bus, false, addr, (u8 *)&c->log_le,
- sizeof(c->log_le));
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, (u8 *)&c->log_le,
+ sizeof(c->log_le));
if (rv < 0)
return rv;
@@ -2479,7 +2436,7 @@ static int brcmf_sdbrcm_readconsole(struct brcmf_sdio *bus)
/* Read the console buffer */
addr = le32_to_cpu(c->log_le.buf);
- rv = brcmf_sdbrcm_membytes(bus, false, addr, c->buf, c->bufsize);
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, c->buf, c->bufsize);
if (rv < 0)
return rv;
@@ -2604,7 +2561,7 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
/* Make sure backplane clock is on */
sdio_claim_host(bus->sdiodev->func[1]);
- brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+ brcmf_sdbrcm_bus_sleep(bus, false, false);
sdio_release_host(bus->sdiodev->func[1]);
/* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
@@ -2633,10 +2590,10 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
msecs_to_jiffies(2000));
if (!bus->ctrl_frame_stat) {
- brcmf_dbg(INFO, "ctrl_frame_stat == false\n");
+ brcmf_dbg(SDIO, "ctrl_frame_stat == false\n");
ret = 0;
} else {
- brcmf_dbg(INFO, "ctrl_frame_stat == true\n");
+ brcmf_dbg(SDIO, "ctrl_frame_stat == true\n");
ret = -1;
}
}
@@ -2662,6 +2619,7 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
bus->activity = false;
sdio_claim_host(bus->sdiodev->func[1]);
+ brcmf_dbg(INFO, "idle\n");
brcmf_sdbrcm_clkctl(bus, CLK_NONE, true);
sdio_release_host(bus->sdiodev->func[1]);
} else {
@@ -2691,23 +2649,22 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
struct sdpcm_shared_le sh_le;
__le32 addr_le;
- shaddr = bus->ramsize - 4;
+ shaddr = bus->ci->rambase + bus->ramsize - 4;
/*
* Read last word in socram to determine
* address of sdpcm_shared structure
*/
sdio_claim_host(bus->sdiodev->func[1]);
- brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
- rv = brcmf_sdbrcm_membytes(bus, false, shaddr,
- (u8 *)&addr_le, 4);
+ brcmf_sdbrcm_bus_sleep(bus, false, false);
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, shaddr, (u8 *)&addr_le, 4);
sdio_release_host(bus->sdiodev->func[1]);
if (rv < 0)
return rv;
addr = le32_to_cpu(addr_le);
- brcmf_dbg(INFO, "sdpcm_shared address 0x%08X\n", addr);
+ brcmf_dbg(SDIO, "sdpcm_shared address 0x%08X\n", addr);
/*
* Check if addr is valid.
@@ -2720,8 +2677,8 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
}
/* Read hndrte_shared structure */
- rv = brcmf_sdbrcm_membytes(bus, false, addr, (u8 *)&sh_le,
- sizeof(struct sdpcm_shared_le));
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr, (u8 *)&sh_le,
+ sizeof(struct sdpcm_shared_le));
if (rv < 0)
return rv;
@@ -2734,8 +2691,8 @@ static int brcmf_sdio_readshared(struct brcmf_sdio *bus,
sh->console_addr = le32_to_cpu(sh_le.console_addr);
sh->msgtrace_addr = le32_to_cpu(sh_le.msgtrace_addr);
- if ((sh->flags & SDPCM_SHARED_VERSION_MASK) != SDPCM_SHARED_VERSION) {
- brcmf_err("sdpcm_shared version mismatch: dhd %d dongle %d\n",
+ if ((sh->flags & SDPCM_SHARED_VERSION_MASK) > SDPCM_SHARED_VERSION) {
+ brcmf_err("sdpcm shared version unsupported: dhd %d dongle %d\n",
SDPCM_SHARED_VERSION,
sh->flags & SDPCM_SHARED_VERSION_MASK);
return -EPROTO;
@@ -2757,22 +2714,22 @@ static int brcmf_sdio_dump_console(struct brcmf_sdio *bus,
/* obtain console information from device memory */
addr = sh->console_addr + offsetof(struct rte_console, log_le);
- rv = brcmf_sdbrcm_membytes(bus, false, addr,
- (u8 *)&sh_val, sizeof(u32));
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+ (u8 *)&sh_val, sizeof(u32));
if (rv < 0)
return rv;
console_ptr = le32_to_cpu(sh_val);
addr = sh->console_addr + offsetof(struct rte_console, log_le.buf_size);
- rv = brcmf_sdbrcm_membytes(bus, false, addr,
- (u8 *)&sh_val, sizeof(u32));
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+ (u8 *)&sh_val, sizeof(u32));
if (rv < 0)
return rv;
console_size = le32_to_cpu(sh_val);
addr = sh->console_addr + offsetof(struct rte_console, log_le.idx);
- rv = brcmf_sdbrcm_membytes(bus, false, addr,
- (u8 *)&sh_val, sizeof(u32));
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, addr,
+ (u8 *)&sh_val, sizeof(u32));
if (rv < 0)
return rv;
console_index = le32_to_cpu(sh_val);
@@ -2786,8 +2743,8 @@ static int brcmf_sdio_dump_console(struct brcmf_sdio *bus,
/* obtain the console data from device */
conbuf[console_size] = '\0';
- rv = brcmf_sdbrcm_membytes(bus, false, console_ptr, (u8 *)conbuf,
- console_size);
+ rv = brcmf_sdio_ramrw(bus->sdiodev, false, console_ptr, (u8 *)conbuf,
+ console_size);
if (rv < 0)
goto done;
@@ -2817,21 +2774,18 @@ static int brcmf_sdio_trap_info(struct brcmf_sdio *bus, struct sdpcm_shared *sh,
int error, res;
char buf[350];
struct brcmf_trap_info tr;
- int nbytes;
loff_t pos = 0;
- if ((sh->flags & SDPCM_SHARED_TRAP) == 0)
+ if ((sh->flags & SDPCM_SHARED_TRAP) == 0) {
+ brcmf_dbg(INFO, "no trap in firmware\n");
return 0;
+ }
- error = brcmf_sdbrcm_membytes(bus, false, sh->trap_addr, (u8 *)&tr,
- sizeof(struct brcmf_trap_info));
+ error = brcmf_sdio_ramrw(bus->sdiodev, false, sh->trap_addr, (u8 *)&tr,
+ sizeof(struct brcmf_trap_info));
if (error < 0)
return error;
- nbytes = brcmf_sdio_dump_console(bus, sh, data, count);
- if (nbytes < 0)
- return nbytes;
-
res = scnprintf(buf, sizeof(buf),
"dongle trap info: type 0x%x @ epc 0x%08x\n"
" cpsr 0x%08x spsr 0x%08x sp 0x%08x\n"
@@ -2847,12 +2801,7 @@ static int brcmf_sdio_trap_info(struct brcmf_sdio *bus, struct sdpcm_shared *sh,
le32_to_cpu(tr.r4), le32_to_cpu(tr.r5),
le32_to_cpu(tr.r6), le32_to_cpu(tr.r7));
- error = simple_read_from_buffer(data+nbytes, count, &pos, buf, res);
- if (error < 0)
- return error;
-
- nbytes += error;
- return nbytes;
+ return simple_read_from_buffer(data, count, &pos, buf, res);
}
static int brcmf_sdio_assert_info(struct brcmf_sdio *bus,
@@ -2876,14 +2825,14 @@ static int brcmf_sdio_assert_info(struct brcmf_sdio *bus,
sdio_claim_host(bus->sdiodev->func[1]);
if (sh->assert_file_addr != 0) {
- error = brcmf_sdbrcm_membytes(bus, false, sh->assert_file_addr,
- (u8 *)file, 80);
+ error = brcmf_sdio_ramrw(bus->sdiodev, false,
+ sh->assert_file_addr, (u8 *)file, 80);
if (error < 0)
return error;
}
if (sh->assert_exp_addr != 0) {
- error = brcmf_sdbrcm_membytes(bus, false, sh->assert_exp_addr,
- (u8 *)expr, 80);
+ error = brcmf_sdio_ramrw(bus->sdiodev, false,
+ sh->assert_exp_addr, (u8 *)expr, 80);
if (error < 0)
return error;
}
@@ -2934,14 +2883,20 @@ static int brcmf_sdbrcm_died_dump(struct brcmf_sdio *bus, char __user *data,
error = brcmf_sdio_assert_info(bus, &sh, data, count);
if (error < 0)
goto done;
-
nbytes = error;
- error = brcmf_sdio_trap_info(bus, &sh, data, count);
+
+ error = brcmf_sdio_trap_info(bus, &sh, data+nbytes, count);
+ if (error < 0)
+ goto done;
+ nbytes += error;
+
+ error = brcmf_sdio_dump_console(bus, &sh, data+nbytes, count);
if (error < 0)
goto done;
+ nbytes += error;
- error += nbytes;
- *ppos += error;
+ error = nbytes;
+ *ppos += nbytes;
done:
return error;
}
@@ -3035,84 +2990,8 @@ brcmf_sdbrcm_bus_rxctl(struct device *dev, unsigned char *msg, uint msglen)
return rxlen ? (int)rxlen : -ETIMEDOUT;
}
-static int brcmf_sdbrcm_write_vars(struct brcmf_sdio *bus)
+static bool brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
{
- int bcmerror = 0;
- u32 varaddr;
- u32 varsizew;
- __le32 varsizew_le;
-#ifdef DEBUG
- char *nvram_ularray;
-#endif /* DEBUG */
-
- /* Even if there are no vars are to be written, we still
- need to set the ramsize. */
- varaddr = (bus->ramsize - 4) - bus->varsz;
-
- if (bus->vars) {
- /* Write the vars list */
- bcmerror = brcmf_sdbrcm_membytes(bus, true, varaddr,
- bus->vars, bus->varsz);
-#ifdef DEBUG
- /* Verify NVRAM bytes */
- brcmf_dbg(INFO, "Compare NVRAM dl & ul; varsize=%d\n",
- bus->varsz);
- nvram_ularray = kmalloc(bus->varsz, GFP_ATOMIC);
- if (!nvram_ularray)
- return -ENOMEM;
-
- /* Upload image to verify downloaded contents. */
- memset(nvram_ularray, 0xaa, bus->varsz);
-
- /* Read the vars list to temp buffer for comparison */
- bcmerror = brcmf_sdbrcm_membytes(bus, false, varaddr,
- nvram_ularray, bus->varsz);
- if (bcmerror) {
- brcmf_err("error %d on reading %d nvram bytes at 0x%08x\n",
- bcmerror, bus->varsz, varaddr);
- }
- /* Compare the org NVRAM with the one read from RAM */
- if (memcmp(bus->vars, nvram_ularray, bus->varsz))
- brcmf_err("Downloaded NVRAM image is corrupted\n");
- else
- brcmf_err("Download/Upload/Compare of NVRAM ok\n");
-
- kfree(nvram_ularray);
-#endif /* DEBUG */
- }
-
- /* adjust to the user specified RAM */
- brcmf_dbg(INFO, "Physical memory size: %d\n", bus->ramsize);
- brcmf_dbg(INFO, "Vars are at %d, orig varsize is %d\n",
- varaddr, bus->varsz);
-
- /*
- * Determine the length token:
- * Varsize, converted to words, in lower 16-bits, checksum
- * in upper 16-bits.
- */
- if (bcmerror) {
- varsizew = 0;
- varsizew_le = cpu_to_le32(0);
- } else {
- varsizew = bus->varsz / 4;
- varsizew = (~varsizew << 16) | (varsizew & 0x0000FFFF);
- varsizew_le = cpu_to_le32(varsizew);
- }
-
- brcmf_dbg(INFO, "New varsize is %d, length token=0x%08x\n",
- bus->varsz, varsizew);
-
- /* Write the length token to the last word */
- bcmerror = brcmf_sdbrcm_membytes(bus, true, (bus->ramsize - 4),
- (u8 *)&varsizew_le, 4);
-
- return bcmerror;
-}
-
-static int brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
-{
- int bcmerror = 0;
struct chip_info *ci = bus->ci;
/* To enter download state, disable ARM and reset SOCRAM.
@@ -3121,41 +3000,19 @@ static int brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
if (enter) {
bus->alp_only = true;
- ci->coredisable(bus->sdiodev, ci, BCMA_CORE_ARM_CM3);
-
- ci->resetcore(bus->sdiodev, ci, BCMA_CORE_INTERNAL_MEM);
-
- /* Clear the top bit of memory */
- if (bus->ramsize) {
- u32 zeros = 0;
- brcmf_sdbrcm_membytes(bus, true, bus->ramsize - 4,
- (u8 *)&zeros, 4);
- }
+ brcmf_sdio_chip_enter_download(bus->sdiodev, ci);
} else {
- if (!ci->iscoreup(bus->sdiodev, ci, BCMA_CORE_INTERNAL_MEM)) {
- brcmf_err("SOCRAM core is down after reset?\n");
- bcmerror = -EBADE;
- goto fail;
- }
-
- bcmerror = brcmf_sdbrcm_write_vars(bus);
- if (bcmerror) {
- brcmf_err("no vars written to RAM\n");
- bcmerror = 0;
- }
-
- w_sdreg32(bus, 0xFFFFFFFF,
- offsetof(struct sdpcmd_regs, intstatus));
-
- ci->resetcore(bus->sdiodev, ci, BCMA_CORE_ARM_CM3);
+ if (!brcmf_sdio_chip_exit_download(bus->sdiodev, ci, bus->vars,
+ bus->varsz))
+ return false;
/* Allow HT Clock now that the ARM is running. */
bus->alp_only = false;
bus->sdiodev->bus_if->state = BRCMF_BUS_LOAD;
}
-fail:
- return bcmerror;
+
+ return true;
}
static int brcmf_sdbrcm_get_image(char *buf, int len, struct brcmf_sdio *bus)
@@ -3170,10 +3027,11 @@ static int brcmf_sdbrcm_get_image(char *buf, int len, struct brcmf_sdio *bus)
static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
{
- int offset = 0;
+ int offset;
uint len;
u8 *memblock = NULL, *memptr;
int ret;
+ u8 idx;
brcmf_dbg(INFO, "Enter\n");
@@ -3194,10 +3052,15 @@ static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
memptr += (BRCMF_SDALIGN -
((u32)(unsigned long)memblock % BRCMF_SDALIGN));
+ offset = bus->ci->rambase;
+
/* Download image */
- while ((len =
- brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus))) {
- ret = brcmf_sdbrcm_membytes(bus, true, offset, memptr, len);
+ len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
+ idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_ARM_CR4);
+ if (BRCMF_MAX_CORENUM != idx)
+ memcpy(&bus->ci->rst_vec, memptr, sizeof(bus->ci->rst_vec));
+ while (len) {
+ ret = brcmf_sdio_ramrw(bus->sdiodev, true, offset, memptr, len);
if (ret) {
brcmf_err("error %d on writing %d membytes at 0x%08x\n",
ret, MEMBLOCK, offset);
@@ -3205,6 +3068,7 @@ static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
}
offset += MEMBLOCK;
+ len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
}
err:
@@ -3312,7 +3176,7 @@ static int _brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
int bcmerror = -1;
/* Keep arm in reset */
- if (brcmf_sdbrcm_download_state(bus, true)) {
+ if (!brcmf_sdbrcm_download_state(bus, true)) {
brcmf_err("error placing ARM core in reset\n");
goto err;
}
@@ -3328,7 +3192,7 @@ static int _brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
}
/* Take arm out of reset */
- if (brcmf_sdbrcm_download_state(bus, false)) {
+ if (!brcmf_sdbrcm_download_state(bus, false)) {
brcmf_err("error getting out of ARM core reset\n");
goto err;
}
@@ -3339,6 +3203,103 @@ err:
return bcmerror;
}
+static bool brcmf_sdbrcm_sr_capable(struct brcmf_sdio *bus)
+{
+ u32 addr, reg;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ /* old chips with PMU version less than 17 don't support save restore */
+ if (bus->ci->pmurev < 17)
+ return false;
+
+ /* read PMU chipcontrol register 3*/
+ addr = CORE_CC_REG(bus->ci->c_inf[0].base, chipcontrol_addr);
+ brcmf_sdio_regwl(bus->sdiodev, addr, 3, NULL);
+ addr = CORE_CC_REG(bus->ci->c_inf[0].base, chipcontrol_data);
+ reg = brcmf_sdio_regrl(bus->sdiodev, addr, NULL);
+
+ return (bool)reg;
+}
+
+static void brcmf_sdbrcm_sr_init(struct brcmf_sdio *bus)
+{
+ int err = 0;
+ u8 val;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL,
+ &err);
+ if (err) {
+ brcmf_err("error reading SBSDIO_FUNC1_WAKEUPCTRL\n");
+ return;
+ }
+
+ val |= 1 << SBSDIO_FUNC1_WCTRL_HTWAIT_SHIFT;
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_WAKEUPCTRL,
+ val, &err);
+ if (err) {
+ brcmf_err("error writing SBSDIO_FUNC1_WAKEUPCTRL\n");
+ return;
+ }
+
+ /* Add CMD14 Support */
+ brcmf_sdio_regwb(bus->sdiodev, SDIO_CCCR_BRCM_CARDCAP,
+ (SDIO_CCCR_BRCM_CARDCAP_CMD14_SUPPORT |
+ SDIO_CCCR_BRCM_CARDCAP_CMD14_EXT),
+ &err);
+ if (err) {
+ brcmf_err("error writing SDIO_CCCR_BRCM_CARDCAP\n");
+ return;
+ }
+
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+ SBSDIO_FORCE_HT, &err);
+ if (err) {
+ brcmf_err("error writing SBSDIO_FUNC1_CHIPCLKCSR\n");
+ return;
+ }
+
+ /* set flag */
+ bus->sr_enabled = true;
+ brcmf_dbg(INFO, "SR enabled\n");
+}
+
+/* enable KSO bit */
+static int brcmf_sdbrcm_kso_init(struct brcmf_sdio *bus)
+{
+ u8 val;
+ int err = 0;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ /* KSO bit added in SDIO core rev 12 */
+ if (bus->ci->c_inf[1].rev < 12)
+ return 0;
+
+ val = brcmf_sdio_regrb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+ &err);
+ if (err) {
+ brcmf_err("error reading SBSDIO_FUNC1_SLEEPCSR\n");
+ return err;
+ }
+
+ if (!(val & SBSDIO_FUNC1_SLEEPCSR_KSO_MASK)) {
+ val |= (SBSDIO_FUNC1_SLEEPCSR_KSO_EN <<
+ SBSDIO_FUNC1_SLEEPCSR_KSO_SHIFT);
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
+ val, &err);
+ if (err) {
+ brcmf_err("error writing SBSDIO_FUNC1_SLEEPCSR\n");
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+
static bool
brcmf_sdbrcm_download_firmware(struct brcmf_sdio *bus)
{
@@ -3437,8 +3398,13 @@ static int brcmf_sdbrcm_bus_init(struct device *dev)
ret = -ENODEV;
}
- /* Restore previous clock setting */
- brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR, saveclk, &err);
+ if (brcmf_sdbrcm_sr_capable(bus)) {
+ brcmf_sdbrcm_sr_init(bus);
+ } else {
+ /* Restore previous clock setting */
+ brcmf_sdio_regwb(bus->sdiodev, SBSDIO_FUNC1_CHIPCLKCSR,
+ saveclk, &err);
+ }
if (ret == 0) {
ret = brcmf_sdio_intr_register(bus->sdiodev);
@@ -3499,7 +3465,8 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
brcmf_dbg(TIMER, "Enter\n");
/* Poll period: check device if appropriate. */
- if (bus->poll && (++bus->polltick >= bus->pollrate)) {
+ if (!bus->sr_enabled &&
+ bus->poll && (++bus->polltick >= bus->pollrate)) {
u32 intstatus = 0;
/* Reset poll tick */
@@ -3550,7 +3517,7 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
bus->console.count -= bus->console_interval;
sdio_claim_host(bus->sdiodev->func[1]);
/* Make sure backplane clock is on */
- brcmf_sdbrcm_clkctl(bus, CLK_AVAIL, false);
+ brcmf_sdbrcm_bus_sleep(bus, false, false);
if (brcmf_sdbrcm_readconsole(bus) < 0)
/* stop on error */
bus->console_interval = 0;
@@ -3567,8 +3534,9 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
bus->activity = false;
brcmf_sdbrcm_wd_timer(bus, BRCMF_WD_POLL_MS);
} else {
+ brcmf_dbg(SDIO, "idle\n");
sdio_claim_host(bus->sdiodev->func[1]);
- brcmf_sdbrcm_clkctl(bus, CLK_NONE, false);
+ brcmf_sdbrcm_bus_sleep(bus, true, false);
sdio_release_host(bus->sdiodev->func[1]);
}
}
@@ -3579,6 +3547,8 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
static bool brcmf_sdbrcm_chipmatch(u16 chipid)
{
+ if (chipid == BCM43143_CHIP_ID)
+ return true;
if (chipid == BCM43241_CHIP_ID)
return true;
if (chipid == BCM4329_CHIP_ID)
@@ -3587,6 +3557,8 @@ static bool brcmf_sdbrcm_chipmatch(u16 chipid)
return true;
if (chipid == BCM4334_CHIP_ID)
return true;
+ if (chipid == BCM4335_CHIP_ID)
+ return true;
return false;
}
@@ -3664,7 +3636,7 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
int err = 0;
int reg_addr;
u32 reg_val;
- u8 idx;
+ u32 drivestrength;
bus->alp_only = true;
@@ -3700,8 +3672,16 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
goto fail;
}
- brcmf_sdio_chip_drivestrengthinit(bus->sdiodev, bus->ci,
- SDIO_DRIVE_STRENGTH);
+ if (brcmf_sdbrcm_kso_init(bus)) {
+ brcmf_err("error enabling KSO\n");
+ goto fail;
+ }
+
+ if ((bus->sdiodev->pdata) && (bus->sdiodev->pdata->drive_strength))
+ drivestrength = bus->sdiodev->pdata->drive_strength;
+ else
+ drivestrength = DEFAULT_SDIO_DRIVE_STRENGTH;
+ brcmf_sdio_chip_drivestrengthinit(bus->sdiodev, bus->ci, drivestrength);
/* Get info on the SOCRAM cores... */
bus->ramsize = bus->ci->ramsize;
@@ -3710,12 +3690,37 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
goto fail;
}
- /* Set core control so an SDIO reset does a backplane reset */
- idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_SDIO_DEV);
- reg_addr = bus->ci->c_inf[idx].base +
- offsetof(struct sdpcmd_regs, corecontrol);
- reg_val = brcmf_sdio_regrl(bus->sdiodev, reg_addr, NULL);
- brcmf_sdio_regwl(bus->sdiodev, reg_addr, reg_val | CC_BPRESEN, NULL);
+ /* Set card control so an SDIO card reset does a WLAN backplane reset */
+ reg_val = brcmf_sdio_regrb(bus->sdiodev,
+ SDIO_CCCR_BRCM_CARDCTRL, &err);
+ if (err)
+ goto fail;
+
+ reg_val |= SDIO_CCCR_BRCM_CARDCTRL_WLANRESET;
+
+ brcmf_sdio_regwb(bus->sdiodev,
+ SDIO_CCCR_BRCM_CARDCTRL, reg_val, &err);
+ if (err)
+ goto fail;
+
+ /* set PMUControl so a backplane reset does PMU state reload */
+ reg_addr = CORE_CC_REG(bus->ci->c_inf[0].base,
+ pmucontrol);
+ reg_val = brcmf_sdio_regrl(bus->sdiodev,
+ reg_addr,
+ &err);
+ if (err)
+ goto fail;
+
+ reg_val |= (BCMA_CC_PMU_CTL_RES_RELOAD << BCMA_CC_PMU_CTL_RES_SHIFT);
+
+ brcmf_sdio_regwl(bus->sdiodev,
+ reg_addr,
+ reg_val,
+ &err);
+ if (err)
+ goto fail;
+
sdio_release_host(bus->sdiodev->func[1]);
@@ -3769,6 +3774,10 @@ static bool brcmf_sdbrcm_probe_init(struct brcmf_sdio *bus)
bus->use_rxchain = false;
bus->sd_rxchain = false;
+ /* SR state */
+ bus->sleeping = false;
+ bus->sr_enabled = false;
+
return true;
}
@@ -3856,6 +3865,7 @@ static struct brcmf_bus_ops brcmf_sdio_bus_ops = {
.txdata = brcmf_sdbrcm_bus_txdata,
.txctl = brcmf_sdbrcm_bus_txctl,
.rxctl = brcmf_sdbrcm_bus_rxctl,
+ .gettxq = brcmf_sdbrcm_bus_gettxq,
};
void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)