carl9170: Register maps, tx/rx descriptor formats and eeprom layout

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 237 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/carl9170/fwdesc.h b/drivers/net/wireless/ath/carl9170/fwdesc.h
new file mode 100644
index 000000000000..7cd811708fe5
--- /dev/null
+++ b/drivers/net/wireless/ath/carl9170/fwdesc.h
@@ -0,0 +1,237 @@
+/*
+ * Shared CARL9170 Header
+ *
+ * Firmware descriptor format
+ *
+ * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, see
+ * http://www.gnu.org/licenses/.
+ */
+
+#ifndef __CARL9170_SHARED_FWDESC_H
+#define __CARL9170_SHARED_FWDESC_H
+
+/* NOTE: Don't mess with the order of the flags! */
+enum carl9170fw_feature_list {
+        /* Always set */
+        CARL9170FW_DUMMY_FEATURE,
+
+        /*
+         * Indicates that this image has special boot block which prevents
+         * legacy drivers to drive the firmware.
+         */
+        CARL9170FW_MINIBOOT,
+
+        /* usb registers are initialized by the firmware */
+        CARL9170FW_USB_INIT_FIRMWARE,
+
+        /* command traps & notifications are send through EP2 */
+        CARL9170FW_USB_RESP_EP2,
+
+        /* usb download (app -> fw) stream */
+        CARL9170FW_USB_DOWN_STREAM,
+
+        /* usb upload (fw -> app) stream */
+        CARL9170FW_USB_UP_STREAM,
+
+        /* unusable - reserved to flag non-functional debug firmwares */
+        CARL9170FW_UNUSABLE,
+
+        /* AR9170_CMD_RF_INIT, AR9170_CMD_FREQ_START, AR9170_CMD_FREQUENCY */
+        CARL9170FW_COMMAND_PHY,
+
+        /* AR9170_CMD_EKEY, AR9170_CMD_DKEY */
+        CARL9170FW_COMMAND_CAM,
+
+        /* Firmware has a software Content After Beacon Queueing mechanism */
+        CARL9170FW_WLANTX_CAB,
+
+        /* The firmware is capable of responding to incoming BAR frames */
+        CARL9170FW_HANDLE_BACK_REQ,
+
+        /* GPIO Interrupt | CARL9170_RSP_GPIO */
+        CARL9170FW_GPIO_INTERRUPT,
+
+        /* Firmware PSM support | CARL9170_CMD_PSM */
+        CARL9170FW_PSM,
+
+        /* KEEP LAST */
+        __CARL9170FW_FEATURE_NUM
+};
+
+#define OTUS_MAGIC      "OTAR"
+#define MOTD_MAGIC      "MOTD"
+#define FIX_MAGIC       "FIX\0"
+#define DBG_MAGIC       "DBG\0"
+#define CHK_MAGIC       "CHK\0"
+#define LAST_MAGIC      "LAST"
+
+#define CARL9170FW_SET_DAY(d) (((d) - 1) % 31)
+#define CARL9170FW_SET_MONTH(m) ((((m) - 1) % 12) * 31)
+#define CARL9170FW_SET_YEAR(y) (((y) - 10) * 372)
+
+#define CARL9170FW_GET_DAY(d) (((d) % 31) + 1)
+#define CARL9170FW_GET_MONTH(m) ((((m) / 31) % 12) + 1)
+#define CARL9170FW_GET_YEAR(y) ((y) / 372 + 10)
+
+struct carl9170fw_desc_head {
+        u8      magic[4];
+        __le16 length;
+        u8 min_ver;
+        u8 cur_ver;
+} __packed;
+#define CARL9170FW_DESC_HEAD_SIZE                       \
+        (sizeof(struct carl9170fw_desc_head))
+
+#define CARL9170FW_OTUS_DESC_MIN_VER            6
+#define CARL9170FW_OTUS_DESC_CUR_VER            6
+struct carl9170fw_otus_desc {
+        struct carl9170fw_desc_head head;
+        __le32 feature_set;
+        __le32 fw_address;
+        __le32 bcn_addr;
+        __le16 bcn_len;
+        __le16 miniboot_size;
+        __le16 tx_frag_len;
+        __le16 rx_max_frame_len;
+        u8 tx_descs;
+        u8 cmd_bufs;
+        u8 api_ver;
+        u8 vif_num;
+} __packed;
+#define CARL9170FW_OTUS_DESC_SIZE                       \
+        (sizeof(struct carl9170fw_otus_desc))
+
+#define CARL9170FW_MOTD_STRING_LEN                      24
+#define CARL9170FW_MOTD_RELEASE_LEN                     20
+#define CARL9170FW_MOTD_DESC_MIN_VER                    1
+#define CARL9170FW_MOTD_DESC_CUR_VER                    2
+struct carl9170fw_motd_desc {
+        struct carl9170fw_desc_head head;
+        __le32 fw_year_month_day;
+        char desc[CARL9170FW_MOTD_STRING_LEN];
+        char release[CARL9170FW_MOTD_RELEASE_LEN];
+} __packed;
+#define CARL9170FW_MOTD_DESC_SIZE                       \
+        (sizeof(struct carl9170fw_motd_desc))
+
+#define CARL9170FW_FIX_DESC_MIN_VER                     1
+#define CARL9170FW_FIX_DESC_CUR_VER                     2
+struct carl9170fw_fix_entry {
+        __le32 address;
+        __le32 mask;
+        __le32 value;
+} __packed;
+
+struct carl9170fw_fix_desc {
+        struct carl9170fw_desc_head head;
+        struct carl9170fw_fix_entry data[0];
+} __packed;
+#define CARL9170FW_FIX_DESC_SIZE                        \
+        (sizeof(struct carl9170fw_fix_desc))
+
+#define CARL9170FW_DBG_DESC_MIN_VER                     1
+#define CARL9170FW_DBG_DESC_CUR_VER                     2
+struct carl9170fw_dbg_desc {
+        struct carl9170fw_desc_head head;
+
+        __le32 bogoclock_addr;
+        __le32 counter_addr;
+        __le32 rx_total_addr;
+        __le32 rx_overrun_addr;
+
+        /* Put your debugging definitions here */
+} __packed;
+#define CARL9170FW_DBG_DESC_SIZE                        \
+        (sizeof(struct carl9170fw_dbg_desc))
+
+#define CARL9170FW_CHK_DESC_MIN_VER                     1
+#define CARL9170FW_CHK_DESC_CUR_VER                     2
+struct carl9170fw_chk_desc {
+        struct carl9170fw_desc_head head;
+        __le32 fw_crc32;
+        __le32 hdr_crc32;
+} __packed;
+#define CARL9170FW_CHK_DESC_SIZE                        \
+        (sizeof(struct carl9170fw_chk_desc))
+
+#define CARL9170FW_LAST_DESC_MIN_VER                    1
+#define CARL9170FW_LAST_DESC_CUR_VER                    2
+struct carl9170fw_last_desc {
+        struct carl9170fw_desc_head head;
+} __packed;
+#define CARL9170FW_LAST_DESC_SIZE                       \
+        (sizeof(struct carl9170fw_fix_desc))
+
+#define CARL9170FW_DESC_MAX_LENGTH                      8192
+
+#define CARL9170FW_FILL_DESC(_magic, _length, _min_ver, _cur_ver)       \
+        .head = {                                                       \
+                .magic = _magic,                                        \
+                .length = cpu_to_le16(_length),                         \
+                .min_ver = _min_ver,                                    \
+                .cur_ver = _cur_ver,                                    \
+        }
+
+static inline void carl9170fw_fill_desc(struct carl9170fw_desc_head *head,
+                                         u8 magic[4], __le16 length,
+                                         u8 min_ver, u8 cur_ver)
+{
+        head->magic[0] = magic[0];
+        head->magic[1] = magic[1];
+        head->magic[2] = magic[2];
+        head->magic[3] = magic[3];
+
+        head->length = length;
+        head->min_ver = min_ver;
+        head->cur_ver = cur_ver;
+}
+
+#define carl9170fw_for_each_hdr(desc, fw_desc)                          \
+        for (desc = fw_desc;                                            \
+             memcmp(desc->magic, LAST_MAGIC, 4) &&                      \
+             le16_to_cpu(desc->length) >= CARL9170FW_DESC_HEAD_SIZE &&  \
+             le16_to_cpu(desc->length) < CARL9170FW_DESC_MAX_LENGTH;    \
+             desc = (void *)((unsigned long)desc + le16_to_cpu(desc->length)))
+
+#define CHECK_HDR_VERSION(head, _min_ver)                               \
+        (((head)->cur_ver < _min_ver) || ((head)->min_ver > _min_ver))  \
+
+static inline bool carl9170fw_supports(__le32 list, u8 feature)
+{
+        return le32_to_cpu(list) & BIT(feature);
+}
+
+static inline bool carl9170fw_desc_cmp(const struct carl9170fw_desc_head *head,
+                                       const u8 descid[4], u16 min_len,
+                                       u8 compatible_revision)
+{
+        if (descid[0] == head->magic[0] && descid[1] == head->magic[1] &&
+            descid[2] == head->magic[2] && descid[3] == head->magic[3] &&
+            !CHECK_HDR_VERSION(head, compatible_revision) &&
+            (le16_to_cpu(head->length) >= min_len))
+                return true;
+
+        return false;
+}
+
+#define CARL9170FW_MIN_SIZE     32
+#define CARL9170FW_MAX_SIZE     16384
+
+static inline bool carl9170fw_size_check(unsigned int len)
+{
+        return (len <= CARL9170FW_MAX_SIZE && len >= CARL9170FW_MIN_SIZE);
+}
+
+#endif /* __CARL9170_SHARED_FWDESC_H */