linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / drivers / net / wireless / hermes.c

diff --git a/drivers/net/wireless/hermes.c b/drivers/net/wireless/hermes.c
index 29d3910..346c6fe 100644 (file)
--- a/drivers/net/wireless/hermes.c
+++ b/drivers/net/wireless/hermes.c
@@ -38,6 +38,7 @@
  * under either the MPL or the GPL.
  */
 
+#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -120,6 +121,12 @@ void hermes_struct_init(hermes_t *hw, void __iomem *address, int reg_spacing)
        hw->iobase = address;
        hw->reg_spacing = reg_spacing;
        hw->inten = 0x0;
+
+#ifdef HERMES_DEBUG_BUFFER
+       hw->dbufp = 0;
+       memset(&hw->dbuf, 0xff, sizeof(hw->dbuf));
+       memset(&hw->profile, 0, sizeof(hw->profile));
+#endif
 }
 
 int hermes_init(hermes_t *hw)
@@ -340,6 +347,19 @@ static int hermes_bap_seek(hermes_t *hw, int bap, u16 id, u16 offset)
                reg = hermes_read_reg(hw, oreg);
        }
 
+#ifdef HERMES_DEBUG_BUFFER
+       hw->profile[HERMES_BAP_BUSY_TIMEOUT - k]++;
+
+       if (k < HERMES_BAP_BUSY_TIMEOUT) {
+               struct hermes_debug_entry *e = 
+                       &hw->dbuf[(hw->dbufp++) % HERMES_DEBUG_BUFSIZE];
+               e->bap = bap;
+               e->id = id;
+               e->offset = offset;
+               e->cycles = HERMES_BAP_BUSY_TIMEOUT - k;
+       }
+#endif
+
        if (reg & HERMES_OFFSET_BUSY)
                return -ETIMEDOUT;
 
@@ -399,7 +419,8 @@ int hermes_bap_pread(hermes_t *hw, int bap, void *buf, int len,
 }
 
 /* Write a block of data to the chip's buffer, via the
- * BAP. Synchronization/serialization is the caller's problem.
+ * BAP. Synchronization/serialization is the caller's problem. len
+ * must be even.
  *
  * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
  */
@@ -409,7 +430,7 @@ int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, int len,
        int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;
        int err = 0;
 
-       if (len < 0)
+       if ( (len < 0) || (len % 2) )
                return -EINVAL;
 
        err = hermes_bap_seek(hw, bap, id, offset);
@@ -417,12 +438,49 @@ int hermes_bap_pwrite(hermes_t *hw, int bap, const void *buf, int len,
                goto out;
        
        /* Actually do the transfer */
-       hermes_write_bytes(hw, dreg, buf, len);
+       hermes_write_words(hw, dreg, buf, len/2);
 
  out:  
        return err;
 }
 
+/* Write a block of data to the chip's buffer with padding if
+ * neccessary, via the BAP. Synchronization/serialization is the
+ * caller's problem. len must be even.
+ *
+ * Returns: < 0 on internal failure (errno), 0 on success, > 0 on error from firmware
+ */
+int hermes_bap_pwrite_pad(hermes_t *hw, int bap, const void *buf, unsigned data_len, int len,
+                     u16 id, u16 offset)
+{
+       int dreg = bap ? HERMES_DATA1 : HERMES_DATA0;
+       int err = 0;
+
+       if (len < 0 || len % 2 || data_len > len)
+               return -EINVAL;
+
+       err = hermes_bap_seek(hw, bap, id, offset);
+       if (err)
+               goto out;
+
+       /* Transfer all the complete words of data */
+       hermes_write_words(hw, dreg, buf, data_len/2);
+       /* If there is an odd byte left over pad and transfer it */
+       if (data_len & 1) {
+               u8 end[2];
+               end[1] = 0;
+               end[0] = ((unsigned char *)buf)[data_len - 1];
+               hermes_write_words(hw, dreg, end, 1);
+               data_len ++;
+       }
+       /* Now send zeros for the padding */
+       if (data_len < len)
+               hermes_clear_words(hw, dreg, (len - data_len) / 2);
+       /* Complete */
+ out:
+       return err;
+}
+
 /* Read a Length-Type-Value record from the card.
  *
  * If length is NULL, we ignore the length read from the card, and
@@ -495,7 +553,7 @@ int hermes_write_ltv(hermes_t *hw, int bap, u16 rid,
 
        count = length - 1;
 
-       hermes_write_bytes(hw, dreg, value, count << 1);
+       hermes_write_words(hw, dreg, value, count);
 
        err = hermes_docmd_wait(hw, HERMES_CMD_ACCESS | HERMES_CMD_WRITE, 
                                rid, NULL);
@@ -510,6 +568,7 @@ EXPORT_SYMBOL(hermes_allocate);
 
 EXPORT_SYMBOL(hermes_bap_pread);
 EXPORT_SYMBOL(hermes_bap_pwrite);
+EXPORT_SYMBOL(hermes_bap_pwrite_pad);
 EXPORT_SYMBOL(hermes_read_ltv);
 EXPORT_SYMBOL(hermes_write_ltv);