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)(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 
67 void wlapi_free_timer(struct wlapi_timer *t)
68 {
69 	brcms_free_timer((struct brcms_timer *)t);
70 }
71 
72 void
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 
78 bool wlapi_del_timer(struct wlapi_timer *t)
79 {
80 	return brcms_del_timer((struct brcms_timer *)t);
81 }
82 
83 void wlapi_intrson(struct phy_shim_info *physhim)
84 {
85 	brcms_intrson(physhim->wl);
86 }
87 
88 u32 wlapi_intrsoff(struct phy_shim_info *physhim)
89 {
90 	return brcms_intrsoff(physhim->wl);
91 }
92 
93 void wlapi_intrsrestore(struct phy_shim_info *physhim, u32 macintmask)
94 {
95 	brcms_intrsrestore(physhim->wl, macintmask);
96 }
97 
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 
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
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 
115 void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags)
116 {
117 	brcms_b_corereset(physhim->wlc_hw, flags);
118 }
119 
120 void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim)
121 {
122 	brcms_c_suspend_mac_and_wait(physhim->wlc);
123 }
124 
125 void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode)
126 {
127 	brcms_b_switch_macfreq(physhim->wlc_hw, spurmode);
128 }
129 
130 void wlapi_enable_mac(struct phy_shim_info *physhim)
131 {
132 	brcms_c_enable_mac(physhim->wlc);
133 }
134 
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 
140 void wlapi_bmac_phy_reset(struct phy_shim_info *physhim)
141 {
142 	brcms_b_phy_reset(physhim->wlc_hw);
143 }
144 
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 
150 u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim)
151 {
152 	return brcms_b_get_txant(physhim->wlc_hw);
153 }
154 
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 
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 
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 
170 void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim)
171 {
172 	brcms_b_core_phypll_reset(physhim->wlc_hw);
173 }
174 
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 
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
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 
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 
199 void wlapi_ucode_sample_init(struct phy_shim_info *physhim)
200 {
201 }
202 
203 void
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
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