svn commit: r253866 - head/sys/dev/iwn
Adrian Chadd
adrian at FreeBSD.org
Thu Aug 1 21:45:31 UTC 2013
Author: adrian
Date: Thu Aug 1 21:45:30 2013
New Revision: 253866
URL: http://svnweb.freebsd.org/changeset/base/253866
Log:
iwn(4) debugging improvements.
* Add in some new register debugging under IWN_DEBUG_REGISTER
* Make IWN_DEBUG an option now for building. I'll chase this up
with a commit to 'options' soon.
Submitted by: Cedric GROSS <cg at cgross.info>
Modified:
head/sys/dev/iwn/if_iwn.c
head/sys/dev/iwn/if_iwnreg.h
Modified: head/sys/dev/iwn/if_iwn.c
==============================================================================
--- head/sys/dev/iwn/if_iwn.c Thu Aug 1 20:10:16 2013 (r253865)
+++ head/sys/dev/iwn/if_iwn.c Thu Aug 1 21:45:30 2013 (r253866)
@@ -160,7 +160,9 @@ static void iwn5000_ict_reset(struct iwn
static int iwn_read_eeprom(struct iwn_softc *,
uint8_t macaddr[IEEE80211_ADDR_LEN]);
static void iwn4965_read_eeprom(struct iwn_softc *);
+#ifdef IWN_DEBUG
static void iwn4965_print_power_group(struct iwn_softc *, int);
+#endif
static void iwn5000_read_eeprom(struct iwn_softc *);
static uint32_t iwn_eeprom_channel_flags(struct iwn_eeprom_chan *);
static void iwn_read_eeprom_band(struct iwn_softc *, int);
@@ -320,9 +322,12 @@ static void iwn_set_channel(struct ieee8
static void iwn_scan_curchan(struct ieee80211_scan_state *, unsigned long);
static void iwn_scan_mindwell(struct ieee80211_scan_state *);
static void iwn_hw_reset(void *, int);
+#ifdef IWN_DEBUG
+static char *iwn_get_csr_string(int);
+static void iwn_debug_register(struct iwn_softc *);
+#endif
-#define IWN_DEBUG
-#ifdef IWN_DEBUG
+#ifdef IWN_DEBUG
enum {
IWN_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
IWN_DEBUG_RECV = 0x00000002, /* basic recv operation */
@@ -339,6 +344,7 @@ enum {
IWN_DEBUG_CMD = 0x00001000, /* cmd submission */
IWN_DEBUG_TXRATE = 0x00002000, /* TX rate debugging */
IWN_DEBUG_PWRSAVE = 0x00004000, /* Power save operations */
+ IWN_DEBUG_REGISTER = 0x20000000, /* print chipset register */
IWN_DEBUG_TRACE = 0x40000000, /* Print begin and start driver function */
IWN_DEBUG_FATAL = 0x80000000, /* fatal errors */
IWN_DEBUG_ANY = 0xffffffff
@@ -924,6 +930,8 @@ iwn_detach(device_t dev)
struct ieee80211com *ic;
int qid;
+ DPRINTF(sc, IWN_DEBUG_TRACE, "->%s begin\n", __func__);
+
if (ifp != NULL) {
ic = ifp->if_l2com;
@@ -961,7 +969,7 @@ iwn_detach(device_t dev)
if (ifp != NULL)
if_free(ifp);
- DPRINTF(sc, IWN_DEBUG_TRACE, "->%s done\n", __func__);
+ DPRINTF(sc, IWN_DEBUG_TRACE, "->%s: end\n", __func__);
IWN_LOCK_DESTROY(sc);
return 0;
}
@@ -3202,8 +3210,6 @@ iwn_notif_intr(struct iwn_softc *sc)
}
case IWN_STATE_CHANGED:
{
- uint32_t *status = (uint32_t *)(desc + 1);
-
/*
* State change allows hardware switch change to be
* noted. However, we handle this in iwn_intr as we
@@ -3211,32 +3217,37 @@ iwn_notif_intr(struct iwn_softc *sc)
*/
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
+#ifdef IWN_DEBUG
+ uint32_t *status = (uint32_t *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_INTR, "state changed to %x\n",
le32toh(*status));
+#endif
break;
}
case IWN_START_SCAN:
{
- struct iwn_start_scan *scan =
- (struct iwn_start_scan *)(desc + 1);
-
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
+#ifdef IWN_DEBUG
+ struct iwn_start_scan *scan =
+ (struct iwn_start_scan *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_ANY,
"%s: scanning channel %d status %x\n",
__func__, scan->chan, le32toh(scan->status));
+#endif
break;
}
case IWN_STOP_SCAN:
{
- struct iwn_stop_scan *scan =
- (struct iwn_stop_scan *)(desc + 1);
-
bus_dmamap_sync(sc->rxq.data_dmat, data->map,
BUS_DMASYNC_POSTREAD);
+#ifdef IWN_DEBUG
+ struct iwn_stop_scan *scan =
+ (struct iwn_stop_scan *)(desc + 1);
DPRINTF(sc, IWN_DEBUG_STATE,
"scan finished nchan=%d status=%d chan=%d\n",
scan->nchan, scan->status, scan->chan);
+#endif
IWN_UNLOCK(sc);
ieee80211_scan_next(vap);
@@ -3416,6 +3427,9 @@ iwn_intr(void *arg)
if (r1 & (IWN_INT_SW_ERR | IWN_INT_HW_ERR)) {
device_printf(sc->sc_dev, "%s: fatal firmware error\n",
__func__);
+#ifdef IWN_DEBUG
+ iwn_debug_register(sc);
+#endif
/* Dump firmware error log and stop. */
iwn_fatal_intr(sc);
ifp->if_flags &= ~IFF_UP;
@@ -7467,3 +7481,85 @@ iwn_hw_reset(void *arg0, int pending)
iwn_init(sc);
ieee80211_notify_radio(ic, 1);
}
+#ifdef IWN_DEBUG
+#define IWN_DESC(x) case x: return #x
+#define COUNTOF(array) (sizeof(array) / sizeof(array[0]))
+
+/*
+ * Transate CSR code to string
+ */
+static char *iwn_get_csr_string(int csr)
+{
+ switch (csr) {
+ IWN_DESC(IWN_HW_IF_CONFIG);
+ IWN_DESC(IWN_INT_COALESCING);
+ IWN_DESC(IWN_INT);
+ IWN_DESC(IWN_INT_MASK);
+ IWN_DESC(IWN_FH_INT);
+ IWN_DESC(IWN_GPIO_IN);
+ IWN_DESC(IWN_RESET);
+ IWN_DESC(IWN_GP_CNTRL);
+ IWN_DESC(IWN_HW_REV);
+ IWN_DESC(IWN_EEPROM);
+ IWN_DESC(IWN_EEPROM_GP);
+ IWN_DESC(IWN_OTP_GP);
+ IWN_DESC(IWN_GIO);
+ IWN_DESC(IWN_GP_UCODE);
+ IWN_DESC(IWN_GP_DRIVER);
+ IWN_DESC(IWN_UCODE_GP1);
+ IWN_DESC(IWN_UCODE_GP2);
+ IWN_DESC(IWN_LED);
+ IWN_DESC(IWN_DRAM_INT_TBL);
+ IWN_DESC(IWN_GIO_CHICKEN);
+ IWN_DESC(IWN_ANA_PLL);
+ IWN_DESC(IWN_HW_REV_WA);
+ IWN_DESC(IWN_DBG_HPET_MEM);
+ default:
+ return "UNKNOWN CSR";
+ }
+}
+
+/*
+ * This function print firmware register
+ */
+static void
+iwn_debug_register(struct iwn_softc *sc)
+{
+ int i;
+ static const uint32_t csr_tbl[] = {
+ IWN_HW_IF_CONFIG,
+ IWN_INT_COALESCING,
+ IWN_INT,
+ IWN_INT_MASK,
+ IWN_FH_INT,
+ IWN_GPIO_IN,
+ IWN_RESET,
+ IWN_GP_CNTRL,
+ IWN_HW_REV,
+ IWN_EEPROM,
+ IWN_EEPROM_GP,
+ IWN_OTP_GP,
+ IWN_GIO,
+ IWN_GP_UCODE,
+ IWN_GP_DRIVER,
+ IWN_UCODE_GP1,
+ IWN_UCODE_GP2,
+ IWN_LED,
+ IWN_DRAM_INT_TBL,
+ IWN_GIO_CHICKEN,
+ IWN_ANA_PLL,
+ IWN_HW_REV_WA,
+ IWN_DBG_HPET_MEM,
+ };
+ DPRINTF(sc, IWN_DEBUG_REGISTER,
+ "CSR values: (2nd byte of IWN_INT_COALESCING is IWN_INT_PERIODIC)%s",
+ "\n");
+ for (i = 0; i < COUNTOF(csr_tbl); i++){
+ DPRINTF(sc, IWN_DEBUG_REGISTER," %10s: 0x%08x ",
+ iwn_get_csr_string(csr_tbl[i]), IWN_READ(sc, csr_tbl[i]));
+ if ((i+1) % 3 == 0)
+ DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
+ }
+ DPRINTF(sc, IWN_DEBUG_REGISTER,"%s","\n");
+}
+#endif
Modified: head/sys/dev/iwn/if_iwnreg.h
==============================================================================
--- head/sys/dev/iwn/if_iwnreg.h Thu Aug 1 20:10:16 2013 (r253865)
+++ head/sys/dev/iwn/if_iwnreg.h Thu Aug 1 21:45:30 2013 (r253866)
@@ -62,6 +62,7 @@
#define IWN_INT 0x008
#define IWN_INT_MASK 0x00c
#define IWN_FH_INT 0x010
+#define IWN_GPIO_IN 0x018 /* read external chip pins */
#define IWN_RESET 0x020
#define IWN_GP_CNTRL 0x024
#define IWN_HW_REV 0x028
@@ -69,8 +70,12 @@
#define IWN_EEPROM_GP 0x030
#define IWN_OTP_GP 0x034
#define IWN_GIO 0x03c
+#define IWN_GP_UCODE 0x048
#define IWN_GP_DRIVER 0x050
+#define IWN_UCODE_GP1 0x054
+#define IWN_UCODE_GP1_SET 0x058
#define IWN_UCODE_GP1_CLR 0x05c
+#define IWN_UCODE_GP2 0x060
#define IWN_LED 0x094
#define IWN_DRAM_INT_TBL 0x0a0
#define IWN_SHADOW_REG_CTRL 0x0a8
@@ -79,6 +84,7 @@
#define IWN_HW_REV_WA 0x22c
#define IWN_DBG_HPET_MEM 0x240
#define IWN_DBG_LINK_PWR_MGMT 0x250
+/* Need nic_lock for use above */
#define IWN_MEM_RADDR 0x40c
#define IWN_MEM_WADDR 0x410
#define IWN_MEM_WDATA 0x418
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