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 
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 = NULL;
42 
43 	physhim = kzalloc(sizeof(struct phy_shim_info), 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 
54 void wlc_phy_shim_detach(struct phy_shim_info *physhim)
55 {
56 	kfree(physhim);
57 }
58 
59 struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
60 				     void (*fn)(struct brcms_phy *pi),
61 				     void *arg, const char *name)
62 {
63 	return (struct wlapi_timer *)
64 			brcms_init_timer(physhim->wl, (void (*)(void *))fn,
65 					 arg, name);
66 }
67 
68 void wlapi_free_timer(struct wlapi_timer *t)
69 {
70 	brcms_free_timer((struct brcms_timer *)t);
71 }
72 
73 void
74 wlapi_add_timer(struct wlapi_timer *t, uint ms, int periodic)
75 {
76 	brcms_add_timer((struct brcms_timer *)t, ms, periodic);
77 }
78 
79 bool wlapi_del_timer(struct wlapi_timer *t)
80 {
81 	return brcms_del_timer((struct brcms_timer *)t);
82 }
83 
84 void wlapi_intrson(struct phy_shim_info *physhim)
85 {
86 	brcms_intrson(physhim->wl);
87 }
88 
89 u32 wlapi_intrsoff(struct phy_shim_info *physhim)
90 {
91 	return brcms_intrsoff(physhim->wl);
92 }
93 
94 void wlapi_intrsrestore(struct phy_shim_info *physhim, u32 macintmask)
95 {
96 	brcms_intrsrestore(physhim->wl, macintmask);
97 }
98 
99 void wlapi_bmac_write_shm(struct phy_shim_info *physhim, uint offset, u16 v)
100 {
101 	brcms_b_write_shm(physhim->wlc_hw, offset, v);
102 }
103 
104 u16 wlapi_bmac_read_shm(struct phy_shim_info *physhim, uint offset)
105 {
106 	return brcms_b_read_shm(physhim->wlc_hw, offset);
107 }
108 
109 void
110 wlapi_bmac_mhf(struct phy_shim_info *physhim, u8 idx, u16 mask,
111 	       u16 val, int bands)
112 {
113 	brcms_b_mhf(physhim->wlc_hw, idx, mask, val, bands);
114 }
115 
116 void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags)
117 {
118 	brcms_b_corereset(physhim->wlc_hw, flags);
119 }
120 
121 void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim)
122 {
123 	brcms_c_suspend_mac_and_wait(physhim->wlc);
124 }
125 
126 void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode)
127 {
128 	brcms_b_switch_macfreq(physhim->wlc_hw, spurmode);
129 }
130 
131 void wlapi_enable_mac(struct phy_shim_info *physhim)
132 {
133 	brcms_c_enable_mac(physhim->wlc);
134 }
135 
136 void wlapi_bmac_mctrl(struct phy_shim_info *physhim, u32 mask, u32 val)
137 {
138 	brcms_b_mctrl(physhim->wlc_hw, mask, val);
139 }
140 
141 void wlapi_bmac_phy_reset(struct phy_shim_info *physhim)
142 {
143 	brcms_b_phy_reset(physhim->wlc_hw);
144 }
145 
146 void wlapi_bmac_bw_set(struct phy_shim_info *physhim, u16 bw)
147 {
148 	brcms_b_bw_set(physhim->wlc_hw, bw);
149 }
150 
151 u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim)
152 {
153 	return brcms_b_get_txant(physhim->wlc_hw);
154 }
155 
156 void wlapi_bmac_phyclk_fgc(struct phy_shim_info *physhim, bool clk)
157 {
158 	brcms_b_phyclk_fgc(physhim->wlc_hw, clk);
159 }
160 
161 void wlapi_bmac_macphyclk_set(struct phy_shim_info *physhim, bool clk)
162 {
163 	brcms_b_macphyclk_set(physhim->wlc_hw, clk);
164 }
165 
166 void wlapi_bmac_core_phypll_ctl(struct phy_shim_info *physhim, bool on)
167 {
168 	brcms_b_core_phypll_ctl(physhim->wlc_hw, on);
169 }
170 
171 void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim)
172 {
173 	brcms_b_core_phypll_reset(physhim->wlc_hw);
174 }
175 
176 void wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info *physhim)
177 {
178 	brcms_c_ucode_wake_override_set(physhim->wlc_hw,
179 					BRCMS_WAKE_OVERRIDE_PHYREG);
180 }
181 
182 void wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info *physhim)
183 {
184 	brcms_c_ucode_wake_override_clear(physhim->wlc_hw,
185 					  BRCMS_WAKE_OVERRIDE_PHYREG);
186 }
187 
188 void
189 wlapi_bmac_write_template_ram(struct phy_shim_info *physhim, int offset,
190 			      int len, void *buf)
191 {
192 	brcms_b_write_template_ram(physhim->wlc_hw, offset, len, buf);
193 }
194 
195 u16 wlapi_bmac_rate_shm_offset(struct phy_shim_info *physhim, u8 rate)
196 {
197 	return brcms_b_rate_shm_offset(physhim->wlc_hw, rate);
198 }
199 
200 void wlapi_ucode_sample_init(struct phy_shim_info *physhim)
201 {
202 }
203 
204 void
205 wlapi_copyfrom_objmem(struct phy_shim_info *physhim, uint offset, void *buf,
206 		      int len, u32 sel)
207 {
208 	brcms_b_copyfrom_objmem(physhim->wlc_hw, offset, buf, len, sel);
209 }
210 
211 void
212 wlapi_copyto_objmem(struct phy_shim_info *physhim, uint offset, const void *buf,
213 		    int l, u32 sel)
214 {
215 	brcms_b_copyto_objmem(physhim->wlc_hw, offset, buf, l, sel);
216 }
217