drivers/staging/brcm80211/brcmsmac/phy_shim.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 /*
  18  * This is "two-way" interface, acting as the SHIM layer between WL and PHY layer.
  19  *   WL driver can optinally call this translation layer to do some preprocessing, then reach PHY.
  20  *   On the PHY->WL driver direction, all calls go through this layer since PHY doesn't have the
  21  *   access to wlc_hw pointer.
  22  */
  23 #include <linux/slab.h>
  24 #include <net/mac80211.h>
  25
  26 #include "bmac.h"
  27 #include "main.h"
  28 #include "mac80211_if.h"
  29 #include "phy_shim.h"
  30
  31 /* PHY SHIM module specific state */
  32 struct phy_shim_info {
  33         struct brcms_hardware *wlc_hw;  /* pointer to main wlc_hw structure */
  34         void *wlc;              /* pointer to main wlc structure */
  35         void *wl;               /* pointer to os-specific private state */
  36 };
  37
  38 struct phy_shim_info *wlc_phy_shim_attach(struct brcms_hardware *wlc_hw,
  39                                                        void *wl, void *wlc) {
  40         struct phy_shim_info *physhim = NULL;
  41
  42         physhim = kzalloc(sizeof(struct phy_shim_info), GFP_ATOMIC);
  43         if (!physhim) {
  44                 wiphy_err(wlc_hw->wlc->wiphy,
  45                           "wl%d: wlc_phy_shim_attach: out of mem\n",
  46                           wlc_hw->unit);
  47                 return NULL;
  48         }
  49         physhim->wlc_hw = wlc_hw;
  50         physhim->wlc = wlc;
  51         physhim->wl = wl;
  52
  53         return physhim;
  54 }
  55
  56 void wlc_phy_shim_detach(struct phy_shim_info *physhim)
  57 {
  58         kfree(physhim);
  59 }
  60
  61 struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
  62                                      void (*fn) (void *arg), void *arg,
  63                                      const char *name)
  64 {
  65         return (struct wlapi_timer *)
  66                         brcms_init_timer(physhim->wl, fn, arg, name);
  67 }
  68
  69 void wlapi_free_timer(struct phy_shim_info *physhim, struct wlapi_timer *t)
  70 {
  71         brcms_free_timer(physhim->wl, (struct brcms_timer *)t);
  72 }
  73
  74 void
  75 wlapi_add_timer(struct phy_shim_info *physhim, struct wlapi_timer *t, uint ms,
  76                 int periodic)
  77 {
  78         brcms_add_timer(physhim->wl, (struct brcms_timer *)t, ms, periodic);
  79 }
  80
  81 bool wlapi_del_timer(struct phy_shim_info *physhim, struct wlapi_timer *t)
  82 {
  83         return brcms_del_timer(physhim->wl, (struct brcms_timer *)t);
  84 }
  85
  86 void wlapi_intrson(struct phy_shim_info *physhim)
  87 {
  88         brcms_intrson(physhim->wl);
  89 }
  90
  91 u32 wlapi_intrsoff(struct phy_shim_info *physhim)
  92 {
  93         return brcms_intrsoff(physhim->wl);
  94 }
  95
  96 void wlapi_intrsrestore(struct phy_shim_info *physhim, u32 macintmask)
  97 {
  98         brcms_intrsrestore(physhim->wl, macintmask);
  99 }
 100
 101 void wlapi_bmac_write_shm(struct phy_shim_info *physhim, uint offset, u16 v)
 102 {
 103         brcms_b_write_shm(physhim->wlc_hw, offset, v);
 104 }
 105
 106 u16 wlapi_bmac_read_shm(struct phy_shim_info *physhim, uint offset)
 107 {
 108         return brcms_b_read_shm(physhim->wlc_hw, offset);
 109 }
 110
 111 void
 112 wlapi_bmac_mhf(struct phy_shim_info *physhim, u8 idx, u16 mask,
 113                u16 val, int bands)
 114 {
 115         brcms_b_mhf(physhim->wlc_hw, idx, mask, val, bands);
 116 }
 117
 118 void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags)
 119 {
 120         brcms_b_corereset(physhim->wlc_hw, flags);
 121 }
 122
 123 void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim)
 124 {
 125         brcms_c_suspend_mac_and_wait(physhim->wlc);
 126 }
 127
 128 void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode)
 129 {
 130         brcms_b_switch_macfreq(physhim->wlc_hw, spurmode);
 131 }
 132
 133 void wlapi_enable_mac(struct phy_shim_info *physhim)
 134 {
 135         brcms_c_enable_mac(physhim->wlc);
 136 }
 137
 138 void wlapi_bmac_mctrl(struct phy_shim_info *physhim, u32 mask, u32 val)
 139 {
 140         brcms_b_mctrl(physhim->wlc_hw, mask, val);
 141 }
 142
 143 void wlapi_bmac_phy_reset(struct phy_shim_info *physhim)
 144 {
 145         brcms_b_phy_reset(physhim->wlc_hw);
 146 }
 147
 148 void wlapi_bmac_bw_set(struct phy_shim_info *physhim, u16 bw)
 149 {
 150         brcms_b_bw_set(physhim->wlc_hw, bw);
 151 }
 152
 153 u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim)
 154 {
 155         return brcms_b_get_txant(physhim->wlc_hw);
 156 }
 157
 158 void wlapi_bmac_phyclk_fgc(struct phy_shim_info *physhim, bool clk)
 159 {
 160         brcms_b_phyclk_fgc(physhim->wlc_hw, clk);
 161 }
 162
 163 void wlapi_bmac_macphyclk_set(struct phy_shim_info *physhim, bool clk)
 164 {
 165         brcms_b_macphyclk_set(physhim->wlc_hw, clk);
 166 }
 167
 168 void wlapi_bmac_core_phypll_ctl(struct phy_shim_info *physhim, bool on)
 169 {
 170         brcms_b_core_phypll_ctl(physhim->wlc_hw, on);
 171 }
 172
 173 void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim)
 174 {
 175         brcms_b_core_phypll_reset(physhim->wlc_hw);
 176 }
 177
 178 void wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info *physhim)
 179 {
 180         brcms_c_ucode_wake_override_set(physhim->wlc_hw,
 181                                         BRCMS_WAKE_OVERRIDE_PHYREG);
 182 }
 183
 184 void wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info *physhim)
 185 {
 186         brcms_c_ucode_wake_override_clear(physhim->wlc_hw,
 187                                           BRCMS_WAKE_OVERRIDE_PHYREG);
 188 }
 189
 190 void
 191 wlapi_bmac_write_template_ram(struct phy_shim_info *physhim, int offset,
 192                               int len, void *buf)
 193 {
 194         brcms_b_write_template_ram(physhim->wlc_hw, offset, len, buf);
 195 }
 196
 197 u16 wlapi_bmac_rate_shm_offset(struct phy_shim_info *physhim, u8 rate)
 198 {
 199         return brcms_b_rate_shm_offset(physhim->wlc_hw, rate);
 200 }
 201
 202 void wlapi_ucode_sample_init(struct phy_shim_info *physhim)
 203 {
 204 }
 205
 206 void
 207 wlapi_copyfrom_objmem(struct phy_shim_info *physhim, uint offset, void *buf,
 208                       int len, u32 sel)
 209 {
 210         brcms_b_copyfrom_objmem(physhim->wlc_hw, offset, buf, len, sel);
 211 }
 212
 213 void
 214 wlapi_copyto_objmem(struct phy_shim_info *physhim, uint offset, const void *buf,
 215                     int l, u32 sel)
 216 {
 217         brcms_b_copyto_objmem(physhim->wlc_hw, offset, buf, l, sel);
 218 }