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 driver
19   * and PHY layer. The driver can optionally call this translation layer
20   * to do some preprocessing, then reach PHY. On the PHY->driver direction,
21   * all calls go through this layer since PHY doesn't have access to the
22   * driver's brcms_hardware pointer.
23   */
24  #include <linux/slab.h>
25  #include <net/mac80211.h>
26  
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  	struct brcms_c_info *wlc;	/* pointer to main wlc structure */
35  	struct brcms_info *wl; /* pointer to os-specific private state */
36  };
37  
wlc_phy_shim_attach(struct brcms_hardware * wlc_hw,struct brcms_info * wl,struct brcms_c_info * wlc)38  struct phy_shim_info *wlc_phy_shim_attach(struct brcms_hardware *wlc_hw,
39  					  struct brcms_info *wl,
40  					  struct brcms_c_info *wlc) {
41  	struct phy_shim_info *physhim;
42  
43  	physhim = kzalloc(sizeof(*physhim), GFP_ATOMIC);
44  	if (!physhim)
45  		return NULL;
46  
47  	physhim->wlc_hw = wlc_hw;
48  	physhim->wlc = wlc;
49  	physhim->wl = wl;
50  
51  	return physhim;
52  }
53  
wlc_phy_shim_detach(struct phy_shim_info * physhim)54  void wlc_phy_shim_detach(struct phy_shim_info *physhim)
55  {
56  	kfree(physhim);
57  }
58  
wlapi_init_timer(struct phy_shim_info * physhim,void (* fn)(void * pi),void * arg,const char * name)59  struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
60  				     void (*fn)(void *pi),
61  				     void *arg, const char *name)
62  {
63  	return (struct wlapi_timer *)
64  			brcms_init_timer(physhim->wl, fn, arg, name);
65  }
66  
wlapi_free_timer(struct wlapi_timer * t)67  void wlapi_free_timer(struct wlapi_timer *t)
68  {
69  	brcms_free_timer((struct brcms_timer *)t);
70  }
71  
72  void
wlapi_add_timer(struct wlapi_timer * t,uint ms,int periodic)73  wlapi_add_timer(struct wlapi_timer *t, uint ms, int periodic)
74  {
75  	brcms_add_timer((struct brcms_timer *)t, ms, periodic);
76  }
77  
wlapi_del_timer(struct wlapi_timer * t)78  bool wlapi_del_timer(struct wlapi_timer *t)
79  {
80  	return brcms_del_timer((struct brcms_timer *)t);
81  }
82  
wlapi_intrson(struct phy_shim_info * physhim)83  void wlapi_intrson(struct phy_shim_info *physhim)
84  {
85  	brcms_intrson(physhim->wl);
86  }
87  
wlapi_intrsoff(struct phy_shim_info * physhim)88  u32 wlapi_intrsoff(struct phy_shim_info *physhim)
89  {
90  	return brcms_intrsoff(physhim->wl);
91  }
92  
wlapi_intrsrestore(struct phy_shim_info * physhim,u32 macintmask)93  void wlapi_intrsrestore(struct phy_shim_info *physhim, u32 macintmask)
94  {
95  	brcms_intrsrestore(physhim->wl, macintmask);
96  }
97  
wlapi_bmac_write_shm(struct phy_shim_info * physhim,uint offset,u16 v)98  void wlapi_bmac_write_shm(struct phy_shim_info *physhim, uint offset, u16 v)
99  {
100  	brcms_b_write_shm(physhim->wlc_hw, offset, v);
101  }
102  
wlapi_bmac_read_shm(struct phy_shim_info * physhim,uint offset)103  u16 wlapi_bmac_read_shm(struct phy_shim_info *physhim, uint offset)
104  {
105  	return brcms_b_read_shm(physhim->wlc_hw, offset);
106  }
107  
108  void
wlapi_bmac_mhf(struct phy_shim_info * physhim,u8 idx,u16 mask,u16 val,int bands)109  wlapi_bmac_mhf(struct phy_shim_info *physhim, u8 idx, u16 mask,
110  	       u16 val, int bands)
111  {
112  	brcms_b_mhf(physhim->wlc_hw, idx, mask, val, bands);
113  }
114  
wlapi_bmac_corereset(struct phy_shim_info * physhim,u32 flags)115  void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags)
116  {
117  	brcms_b_corereset(physhim->wlc_hw, flags);
118  }
119  
wlapi_suspend_mac_and_wait(struct phy_shim_info * physhim)120  void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim)
121  {
122  	brcms_c_suspend_mac_and_wait(physhim->wlc);
123  }
124  
wlapi_switch_macfreq(struct phy_shim_info * physhim,u8 spurmode)125  void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode)
126  {
127  	brcms_b_switch_macfreq(physhim->wlc_hw, spurmode);
128  }
129  
wlapi_enable_mac(struct phy_shim_info * physhim)130  void wlapi_enable_mac(struct phy_shim_info *physhim)
131  {
132  	brcms_c_enable_mac(physhim->wlc);
133  }
134  
wlapi_bmac_mctrl(struct phy_shim_info * physhim,u32 mask,u32 val)135  void wlapi_bmac_mctrl(struct phy_shim_info *physhim, u32 mask, u32 val)
136  {
137  	brcms_b_mctrl(physhim->wlc_hw, mask, val);
138  }
139  
wlapi_bmac_phy_reset(struct phy_shim_info * physhim)140  void wlapi_bmac_phy_reset(struct phy_shim_info *physhim)
141  {
142  	brcms_b_phy_reset(physhim->wlc_hw);
143  }
144  
wlapi_bmac_bw_set(struct phy_shim_info * physhim,u16 bw)145  void wlapi_bmac_bw_set(struct phy_shim_info *physhim, u16 bw)
146  {
147  	brcms_b_bw_set(physhim->wlc_hw, bw);
148  }
149  
wlapi_bmac_get_txant(struct phy_shim_info * physhim)150  u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim)
151  {
152  	return brcms_b_get_txant(physhim->wlc_hw);
153  }
154  
wlapi_bmac_phyclk_fgc(struct phy_shim_info * physhim,bool clk)155  void wlapi_bmac_phyclk_fgc(struct phy_shim_info *physhim, bool clk)
156  {
157  	brcms_b_phyclk_fgc(physhim->wlc_hw, clk);
158  }
159  
wlapi_bmac_macphyclk_set(struct phy_shim_info * physhim,bool clk)160  void wlapi_bmac_macphyclk_set(struct phy_shim_info *physhim, bool clk)
161  {
162  	brcms_b_macphyclk_set(physhim->wlc_hw, clk);
163  }
164  
wlapi_bmac_core_phypll_ctl(struct phy_shim_info * physhim,bool on)165  void wlapi_bmac_core_phypll_ctl(struct phy_shim_info *physhim, bool on)
166  {
167  	brcms_b_core_phypll_ctl(physhim->wlc_hw, on);
168  }
169  
wlapi_bmac_core_phypll_reset(struct phy_shim_info * physhim)170  void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim)
171  {
172  	brcms_b_core_phypll_reset(physhim->wlc_hw);
173  }
174  
wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info * physhim)175  void wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info *physhim)
176  {
177  	brcms_c_ucode_wake_override_set(physhim->wlc_hw,
178  					BRCMS_WAKE_OVERRIDE_PHYREG);
179  }
180  
wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info * physhim)181  void wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info *physhim)
182  {
183  	brcms_c_ucode_wake_override_clear(physhim->wlc_hw,
184  					  BRCMS_WAKE_OVERRIDE_PHYREG);
185  }
186  
187  void
wlapi_bmac_write_template_ram(struct phy_shim_info * physhim,int offset,int len,void * buf)188  wlapi_bmac_write_template_ram(struct phy_shim_info *physhim, int offset,
189  			      int len, void *buf)
190  {
191  	brcms_b_write_template_ram(physhim->wlc_hw, offset, len, buf);
192  }
193  
wlapi_bmac_rate_shm_offset(struct phy_shim_info * physhim,u8 rate)194  u16 wlapi_bmac_rate_shm_offset(struct phy_shim_info *physhim, u8 rate)
195  {
196  	return brcms_b_rate_shm_offset(physhim->wlc_hw, rate);
197  }
198  
wlapi_ucode_sample_init(struct phy_shim_info * physhim)199  void wlapi_ucode_sample_init(struct phy_shim_info *physhim)
200  {
201  }
202  
203  void
wlapi_copyfrom_objmem(struct phy_shim_info * physhim,uint offset,void * buf,int len,u32 sel)204  wlapi_copyfrom_objmem(struct phy_shim_info *physhim, uint offset, void *buf,
205  		      int len, u32 sel)
206  {
207  	brcms_b_copyfrom_objmem(physhim->wlc_hw, offset, buf, len, sel);
208  }
209  
210  void
wlapi_copyto_objmem(struct phy_shim_info * physhim,uint offset,const void * buf,int l,u32 sel)211  wlapi_copyto_objmem(struct phy_shim_info *physhim, uint offset, const void *buf,
212  		    int l, u32 sel)
213  {
214  	brcms_b_copyto_objmem(physhim->wlc_hw, offset, buf, l, sel);
215  }
216