Staging: add CSR wifi module

This consists of two modules, the driver, and a "helper" module that is
just a wrapper around common kernel functions.  The wrapper module will
be removed soon, but for now it's needed.

These files were based on the csr-linux-wifi-5.0.3-oss.tar.gz package
provided by CSR and Blue Giga, and is covered under the license
specified in the LICENSE.txt file (basically dual BSD and GPLv2).  The
files were flattened out of the deep directory mess they were originally
in, and a few EXPORT_SYMBOL_GPL() were added in order for everything to
link properly with the helper module setup.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 111 insertions, 0 deletions

diff --git a/drivers/staging/csr/csr_macro.h b/drivers/staging/csr/csr_macro.h
new file mode 100644
index 000000000000..2e3dcac4f331
--- /dev/null
+++ b/drivers/staging/csr/csr_macro.h
@@ -0,0 +1,111 @@
+#ifndef CSR_MACRO_H__
+#define CSR_MACRO_H__
+/*****************************************************************************
+
+            (c) Cambridge Silicon Radio Limited 2010
+            All rights reserved and confidential information of CSR
+
+            Refer to LICENSE.txt included with this source for details
+            on the license terms.
+
+*****************************************************************************/
+
+#include "csr_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*------------------------------------------------------------------*/
+/* Bits - intended to operate on CsrUint32 values */
+/*------------------------------------------------------------------*/
+#define CSR_MASK_IS_SET(val, mask) (((val) & (mask)) == (mask))
+#define CSR_MASK_IS_UNSET(val, mask) ((((val) & (mask)) ^ mask) == (mask))
+#define CSR_MASK_SET(val, mask)    ((val) |= (mask))
+#define CSR_MASK_UNSET(val, mask)  ((val) = ((val) ^ (mask)) & (val)) /* Unsets the bits in val that are set in mask */
+#define CSR_BIT_IS_SET(val, bit)   ((CsrBool) ((((val) & (1UL << (bit))) != 0)))
+#define CSR_BIT_SET(val, bit)      ((val) |= (1UL << (bit)))
+#define CSR_BIT_UNSET(val, bit)    ((val) &= ~(1UL << (bit)))
+#define CSR_BIT_TOGGLE(val, bit)   ((val) ^= (1UL << (bit)))
+
+/*------------------------------------------------------------------*/
+/* Endian conversion */
+/*------------------------------------------------------------------*/
+#define CSR_GET_UINT16_FROM_LITTLE_ENDIAN(ptr)        (((CsrUint16) ((CsrUint8 *) (ptr))[0]) | ((CsrUint16) ((CsrUint8 *) (ptr))[1]) << 8)
+#define CSR_GET_UINT32_FROM_LITTLE_ENDIAN(ptr)        (((CsrUint32) ((CsrUint8 *) (ptr))[0]) | ((CsrUint32) ((CsrUint8 *) (ptr))[1]) << 8 | \
+                                                       ((CsrUint32) ((CsrUint8 *) (ptr))[2]) << 16 | ((CsrUint32) ((CsrUint8 *) (ptr))[3]) << 24)
+#define CSR_COPY_UINT16_TO_LITTLE_ENDIAN(uint, ptr)    ((CsrUint8 *) (ptr))[0] = ((CsrUint8) ((uint) & 0x00FF)); \
+    ((CsrUint8 *) (ptr))[1] = ((CsrUint8) ((uint) >> 8))
+#define CSR_COPY_UINT32_TO_LITTLE_ENDIAN(uint, ptr)    ((CsrUint8 *) (ptr))[0] = ((CsrUint8) ((uint) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[1] = ((CsrUint8) (((uint) >> 8) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[2] = ((CsrUint8) (((uint) >> 16) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[3] = ((CsrUint8) (((uint) >> 24) & 0x000000FF))
+#define CSR_GET_UINT16_FROM_BIG_ENDIAN(ptr) (((CsrUint16) ((CsrUint8 *) (ptr))[1]) | ((CsrUint16) ((CsrUint8 *) (ptr))[0]) << 8)
+#define CSR_GET_UINT24_FROM_BIG_ENDIAN(ptr) (((CsrUint24) ((CsrUint8 *) (ptr))[2]) | \
+                                             ((CsrUint24) ((CsrUint8 *) (ptr))[1]) << 8 | ((CsrUint24) ((CsrUint8 *) (ptr))[0]) << 16)
+#define CSR_GET_UINT32_FROM_BIG_ENDIAN(ptr) (((CsrUint32) ((CsrUint8 *) (ptr))[3]) | ((CsrUint32) ((CsrUint8 *) (ptr))[2]) << 8 | \
+                                             ((CsrUint32) ((CsrUint8 *) (ptr))[1]) << 16 | ((CsrUint32) ((CsrUint8 *) (ptr))[0]) << 24)
+#define CSR_COPY_UINT16_TO_BIG_ENDIAN(uint, ptr)    ((CsrUint8 *) (ptr))[1] = ((CsrUint8) ((uint) & 0x00FF)); \
+    ((CsrUint8 *) (ptr))[0] = ((CsrUint8) ((uint) >> 8))
+#define CSR_COPY_UINT24_TO_BIG_ENDIAN(uint, ptr)    ((CsrUint8 *) (ptr))[2] = ((CsrUint8) ((uint) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[1] = ((CsrUint8) (((uint) >> 8) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[0] = ((CsrUint8) (((uint) >> 16) & 0x000000FF))
+#define CSR_COPY_UINT32_TO_BIG_ENDIAN(uint, ptr)    ((CsrUint8 *) (ptr))[3] = ((CsrUint8) ((uint) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[2] = ((CsrUint8) (((uint) >> 8) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[1] = ((CsrUint8) (((uint) >> 16) & 0x000000FF)); \
+    ((CsrUint8 *) (ptr))[0] = ((CsrUint8) (((uint) >> 24) & 0x000000FF))
+
+/*------------------------------------------------------------------*/
+/* XAP conversion macros */
+/*------------------------------------------------------------------*/
+
+#define CSR_LSB16(a) ((CsrUint8) ((a) & 0x00ff))
+#define CSR_MSB16(b) ((CsrUint8) ((b) >> 8))
+
+#define CSR_CONVERT_8_FROM_XAP(output, input) \
+    (output) = ((CsrUint8) (input));(input) += 2
+
+#define CSR_CONVERT_16_FROM_XAP(output, input) \
+    (output) = (CsrUint16) ((((CsrUint16) (input)[1]) << 8) | \
+                            ((CsrUint16) (input)[0]));(input) += 2
+
+#define CSR_CONVERT_32_FROM_XAP(output, input) \
+    (output) = (((CsrUint32) (input)[1]) << 24) | \
+               (((CsrUint32) (input)[0]) << 16) | \
+               (((CsrUint32) (input)[3]) << 8) | \
+               ((CsrUint32) (input)[2]);input += 4
+
+#define CSR_ADD_UINT8_TO_XAP(output, input) \
+    (output)[0] = (input);  \
+    (output)[1] = 0;(output) += 2
+
+#define CSR_ADD_UINT16_TO_XAP(output, input) \
+    (output)[0] = ((CsrUint8) ((input) & 0x00FF));  \
+    (output)[1] = ((CsrUint8) ((input) >> 8));(output) += 2
+
+#define CSR_ADD_UINT32_TO_XAP(output, input) \
+    (output)[0] = ((CsrUint8) (((input) >> 16) & 0x00FF)); \
+    (output)[1] = ((CsrUint8) ((input) >> 24)); \
+    (output)[2] = ((CsrUint8) ((input) & 0x00FF)); \
+    (output)[3] = ((CsrUint8) (((input) >> 8) & 0x00FF));(output) += 4
+
+/*------------------------------------------------------------------*/
+/* Misc */
+/*------------------------------------------------------------------*/
+#define CSRMAX(a, b)    (((a) > (b)) ? (a) : (b))
+#define CSRMIN(a, b)    (((a) < (b)) ? (a) : (b))
+
+/* Use this macro on unused local variables that cannot be removed (such as
+   unused function parameters). This will quell warnings from certain compilers
+   and static code analysis tools like Lint and Valgrind. */
+#define CSR_UNUSED(x) ((void) (x))
+
+#define CSR_TOUPPER(character)  (((character) >= 'a') && ((character) <= 'z') ? ((character) - 0x20) : (character))
+#define CSR_TOLOWER(character)  (((character) >= 'A') && ((character) <= 'Z') ? ((character) + 0x20) : (character))
+#define CSR_ARRAY_SIZE(x)       (sizeof(x) / sizeof(*(x)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif