iwmc3200wifi: Add new Intel Wireless Multicomm 802.11 driver

This driver supports Intel's full MAC wireless multicomm 802.11 hardware.
Although the hardware is a 802.11agn device, we currently only support
802.11ag, in managed and ad-hoc mode (no AP mode for now).

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 236 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwmc3200wifi/hal.h b/drivers/net/wireless/iwmc3200wifi/hal.h
new file mode 100644
index 000000000000..0adfdc85765d
--- /dev/null
+++ b/drivers/net/wireless/iwmc3200wifi/hal.h
@@ -0,0 +1,236 @@
+/*
+ * Intel Wireless Multicomm 3200 WiFi driver
+ *
+ * Copyright (C) 2009 Intel Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of Intel Corporation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ * Intel Corporation <ilw@linux.intel.com>
+ * Samuel Ortiz <samuel.ortiz@intel.com>
+ * Zhu Yi <yi.zhu@intel.com>
+ *
+ */
+
+#ifndef _IWM_HAL_H_
+#define _IWM_HAL_H_
+
+#include "umac.h"
+
+#define GET_VAL8(s, name)       ((s >> name##_POS) & name##_SEED)
+#define GET_VAL16(s, name)      ((le16_to_cpu(s) >> name##_POS) & name##_SEED)
+#define GET_VAL32(s, name)      ((le32_to_cpu(s) >> name##_POS) & name##_SEED)
+
+#define SET_VAL8(s, name, val)                                            \
+do {                                                                      \
+        s = (s & ~(name##_SEED << name##_POS)) |                          \
+            ((val & name##_SEED) << name##_POS);                          \
+} while (0)
+
+#define SET_VAL16(s, name, val)                                           \
+do {                                                                      \
+        s = cpu_to_le16((le16_to_cpu(s) & ~(name##_SEED << name##_POS)) | \
+                        ((val & name##_SEED) << name##_POS));             \
+} while (0)
+
+#define SET_VAL32(s, name, val)                                           \
+do {                                                                      \
+        s = cpu_to_le32((le32_to_cpu(s) & ~(name##_SEED << name##_POS)) | \
+                        ((val & name##_SEED) << name##_POS));             \
+} while (0)
+
+
+#define UDMA_UMAC_INIT  {       .eop = 1,                                 \
+                                .credit_group = 0x4,                      \
+                                .ra_tid = UMAC_HDI_ACT_TBL_IDX_HOST_CMD,  \
+                                .lmac_offset = 0 }
+#define UDMA_LMAC_INIT  {       .eop = 1,                                 \
+                                .credit_group = 0x4,                      \
+                                .ra_tid = UMAC_HDI_ACT_TBL_IDX_HOST_CMD,  \
+                                .lmac_offset = 4 }
+
+
+/* UDMA IN OP CODE -- cmd bits [3:0] */
+#define UDMA_IN_OPCODE_MASK                     0xF
+
+#define UDMA_IN_OPCODE_GENERAL_RESP             0x0
+#define UDMA_IN_OPCODE_READ_RESP                0x1
+#define UDMA_IN_OPCODE_WRITE_RESP               0x2
+#define UDMA_IN_OPCODE_PERS_WRITE_RESP          0x5
+#define UDMA_IN_OPCODE_PERS_READ_RESP           0x6
+#define UDMA_IN_OPCODE_RD_MDFY_WR_RESP          0x7
+#define UDMA_IN_OPCODE_EP_MNGMT_MSG             0x8
+#define UDMA_IN_OPCODE_CRDT_CHNG_MSG            0x9
+#define UDMA_IN_OPCODE_CNTRL_DATABASE_MSG       0xA
+#define UDMA_IN_OPCODE_SW_MSG                   0xB
+#define UDMA_IN_OPCODE_WIFI                     0xF
+#define UDMA_IN_OPCODE_WIFI_LMAC                0x1F
+#define UDMA_IN_OPCODE_WIFI_UMAC                0x2F
+
+/* HW API: udma_hdi_nonwifi API (OUT and IN) */
+
+/* iwm_udma_nonwifi_cmd request response -- bits [9:9] */
+#define UDMA_HDI_OUT_NW_CMD_RESP_POS            9
+#define UDMA_HDI_OUT_NW_CMD_RESP_SEED           0x1
+
+/* iwm_udma_nonwifi_cmd handle by HW -- bits [11:11] */
+#define UDMA_HDI_OUT_NW_CMD_HANDLE_BY_HW_POS    11
+#define UDMA_HDI_OUT_NW_CMD_HANDLE_BY_HW_SEED   0x1
+
+/* iwm_udma_nonwifi_cmd sequence-number -- bits [12:15] */
+#define UDMA_HDI_OUT_NW_CMD_SEQ_NUM_POS         12
+#define UDMA_HDI_OUT_NW_CMD_SEQ_NUM_SEED        0xF
+
+/* UDMA IN Non-WIFI HW sequence number -- bits [12:15] */
+#define UDMA_IN_NW_HW_SEQ_NUM_POS               12
+#define UDMA_IN_NW_HW_SEQ_NUM_SEED              0xF
+
+/* UDMA IN Non-WIFI HW signature -- bits [16:31] */
+#define UDMA_IN_NW_HW_SIG_POS                   16
+#define UDMA_IN_NW_HW_SIG_SEED                  0xFFFF
+
+/* fixed signature */
+#define UDMA_IN_NW_HW_SIG                       0xCBBC
+
+/* UDMA IN Non-WIFI HW block length -- bits [32:35] */
+#define UDMA_IN_NW_HW_LENGTH_SEED               0xF
+#define UDMA_IN_NW_HW_LENGTH_POS                32
+
+/* End of HW API: udma_hdi_nonwifi API (OUT and IN) */
+
+#define IWM_SDIO_FW_MAX_CHUNK_SIZE      2032
+#define IWM_MAX_WIFI_HEADERS_SIZE       32
+#define IWM_MAX_NONWIFI_HEADERS_SIZE    16
+#define IWM_MAX_NONWIFI_CMD_BUFF_SIZE   (IWM_SDIO_FW_MAX_CHUNK_SIZE - \
+                                         IWM_MAX_NONWIFI_HEADERS_SIZE)
+#define IWM_MAX_WIFI_CMD_BUFF_SIZE      (IWM_SDIO_FW_MAX_CHUNK_SIZE - \
+                                         IWM_MAX_WIFI_HEADERS_SIZE)
+
+#define IWM_HAL_CONCATENATE_BUF_SIZE    8192
+
+struct iwm_wifi_cmd_buff {
+        u16 len;
+        u8 *start;
+        u8 hdr[IWM_MAX_WIFI_HEADERS_SIZE];
+        u8 payload[IWM_MAX_WIFI_CMD_BUFF_SIZE];
+};
+
+struct iwm_nonwifi_cmd_buff {
+        u16 len;
+        u8 *start;
+        u8 hdr[IWM_MAX_NONWIFI_HEADERS_SIZE];
+        u8 payload[IWM_MAX_NONWIFI_CMD_BUFF_SIZE];
+};
+
+struct iwm_udma_nonwifi_cmd {
+        u8 opcode;
+        u8 eop;
+        u8 resp;
+        u8 handle_by_hw;
+        __le32 addr;
+        __le32 op1_sz;
+        __le32 op2;
+        __le16 seq_num;
+};
+
+struct iwm_udma_wifi_cmd {
+        __le16 count;
+        u8 eop;
+        u8 credit_group;
+        u8 ra_tid;
+        u8 lmac_offset;
+};
+
+struct iwm_umac_cmd {
+        u8 id;
+        __le16 count;
+        u8 resp;
+        __le16 seq_num;
+        u8 color;
+};
+
+struct iwm_lmac_cmd {
+        u8 id;
+        __le16 count;
+        u8 resp;
+        __le16 seq_num;
+};
+
+struct iwm_nonwifi_cmd {
+        u16 seq_num;
+        bool resp_received;
+        struct list_head pending;
+        struct iwm_udma_nonwifi_cmd udma_cmd;
+        struct iwm_umac_cmd umac_cmd;
+        struct iwm_lmac_cmd lmac_cmd;
+        struct iwm_nonwifi_cmd_buff buf;
+        u32 flags;
+};
+
+struct iwm_wifi_cmd {
+        u16 seq_num;
+        struct list_head pending;
+        struct iwm_udma_wifi_cmd udma_cmd;
+        struct iwm_umac_cmd umac_cmd;
+        struct iwm_lmac_cmd lmac_cmd;
+        struct iwm_wifi_cmd_buff buf;
+        u32 flags;
+};
+
+void iwm_cmd_flush(struct iwm_priv *iwm);
+
+struct iwm_wifi_cmd *iwm_get_pending_wifi_cmd(struct iwm_priv *iwm,
+                                              u16 seq_num);
+struct iwm_nonwifi_cmd *iwm_get_pending_nonwifi_cmd(struct iwm_priv *iwm,
+                                                    u8 seq_num, u8 cmd_opcode);
+
+
+int iwm_hal_send_target_cmd(struct iwm_priv *iwm,
+                            struct iwm_udma_nonwifi_cmd *ucmd,
+                            const void *payload);
+
+int iwm_hal_send_host_cmd(struct iwm_priv *iwm,
+                          struct iwm_udma_wifi_cmd *udma_cmd,
+                          struct iwm_umac_cmd *umac_cmd,
+                          struct iwm_lmac_cmd *lmac_cmd,
+                          const void *payload, u16 payload_size);
+
+int iwm_hal_send_umac_cmd(struct iwm_priv *iwm,
+                          struct iwm_udma_wifi_cmd *udma_cmd,
+                          struct iwm_umac_cmd *umac_cmd,
+                          const void *payload, u16 payload_size);
+
+u16 iwm_alloc_wifi_cmd_seq(struct iwm_priv *iwm);
+
+void iwm_udma_wifi_hdr_set_eop(struct iwm_priv *iwm, u8 *buf, u8 eop);
+void iwm_build_udma_wifi_hdr(struct iwm_priv *iwm,
+                             struct iwm_udma_out_wifi_hdr *hdr,
+                             struct iwm_udma_wifi_cmd *cmd);
+void iwm_build_umac_hdr(struct iwm_priv *iwm,
+                        struct iwm_umac_fw_cmd_hdr *hdr,
+                        struct iwm_umac_cmd *cmd);
+#endif /* _IWM_HAL_H_ */