diff options
Diffstat (limited to 'drivers/net/pch_gbe/pch_gbe_api.c')
-rw-r--r-- | drivers/net/pch_gbe/pch_gbe_api.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/drivers/net/pch_gbe/pch_gbe_api.c b/drivers/net/pch_gbe/pch_gbe_api.c new file mode 100644 index 00000000000..e48f084ad22 --- /dev/null +++ b/drivers/net/pch_gbe/pch_gbe_api.c | |||
@@ -0,0 +1,245 @@ | |||
1 | /* | ||
2 | * Copyright (C) 1999 - 2010 Intel Corporation. | ||
3 | * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD. | ||
4 | * | ||
5 | * This code was derived from the Intel e1000e Linux driver. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; version 2 of the License. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | #include "pch_gbe.h" | ||
21 | #include "pch_gbe_phy.h" | ||
22 | |||
23 | /* bus type values */ | ||
24 | #define pch_gbe_bus_type_unknown 0 | ||
25 | #define pch_gbe_bus_type_pci 1 | ||
26 | #define pch_gbe_bus_type_pcix 2 | ||
27 | #define pch_gbe_bus_type_pci_express 3 | ||
28 | #define pch_gbe_bus_type_reserved 4 | ||
29 | |||
30 | /* bus speed values */ | ||
31 | #define pch_gbe_bus_speed_unknown 0 | ||
32 | #define pch_gbe_bus_speed_33 1 | ||
33 | #define pch_gbe_bus_speed_66 2 | ||
34 | #define pch_gbe_bus_speed_100 3 | ||
35 | #define pch_gbe_bus_speed_120 4 | ||
36 | #define pch_gbe_bus_speed_133 5 | ||
37 | #define pch_gbe_bus_speed_2500 6 | ||
38 | #define pch_gbe_bus_speed_reserved 7 | ||
39 | |||
40 | /* bus width values */ | ||
41 | #define pch_gbe_bus_width_unknown 0 | ||
42 | #define pch_gbe_bus_width_pcie_x1 1 | ||
43 | #define pch_gbe_bus_width_pcie_x2 2 | ||
44 | #define pch_gbe_bus_width_pcie_x4 4 | ||
45 | #define pch_gbe_bus_width_32 5 | ||
46 | #define pch_gbe_bus_width_64 6 | ||
47 | #define pch_gbe_bus_width_reserved 7 | ||
48 | |||
49 | /** | ||
50 | * pch_gbe_plat_get_bus_info - Obtain bus information for adapter | ||
51 | * @hw: Pointer to the HW structure | ||
52 | */ | ||
53 | static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw) | ||
54 | { | ||
55 | hw->bus.type = pch_gbe_bus_type_pci_express; | ||
56 | hw->bus.speed = pch_gbe_bus_speed_2500; | ||
57 | hw->bus.width = pch_gbe_bus_width_pcie_x1; | ||
58 | } | ||
59 | |||
60 | /** | ||
61 | * pch_gbe_plat_init_hw - Initialize hardware | ||
62 | * @hw: Pointer to the HW structure | ||
63 | * Returns | ||
64 | * 0: Successfully | ||
65 | * Negative value: Failed-EBUSY | ||
66 | */ | ||
67 | static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw) | ||
68 | { | ||
69 | s32 ret_val; | ||
70 | |||
71 | ret_val = pch_gbe_phy_get_id(hw); | ||
72 | if (ret_val) { | ||
73 | pr_err("pch_gbe_phy_get_id error\n"); | ||
74 | return ret_val; | ||
75 | } | ||
76 | pch_gbe_phy_init_setting(hw); | ||
77 | /* Setup Mac interface option RGMII */ | ||
78 | #ifdef PCH_GBE_MAC_IFOP_RGMII | ||
79 | pch_gbe_phy_set_rgmii(hw); | ||
80 | #endif | ||
81 | return ret_val; | ||
82 | } | ||
83 | |||
84 | static const struct pch_gbe_functions pch_gbe_ops = { | ||
85 | .get_bus_info = pch_gbe_plat_get_bus_info, | ||
86 | .init_hw = pch_gbe_plat_init_hw, | ||
87 | .read_phy_reg = pch_gbe_phy_read_reg_miic, | ||
88 | .write_phy_reg = pch_gbe_phy_write_reg_miic, | ||
89 | .reset_phy = pch_gbe_phy_hw_reset, | ||
90 | .sw_reset_phy = pch_gbe_phy_sw_reset, | ||
91 | .power_up_phy = pch_gbe_phy_power_up, | ||
92 | .power_down_phy = pch_gbe_phy_power_down, | ||
93 | .read_mac_addr = pch_gbe_mac_read_mac_addr | ||
94 | }; | ||
95 | |||
96 | /** | ||
97 | * pch_gbe_plat_init_function_pointers - Init func ptrs | ||
98 | * @hw: Pointer to the HW structure | ||
99 | */ | ||
100 | static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw) | ||
101 | { | ||
102 | /* Set PHY parameter */ | ||
103 | hw->phy.reset_delay_us = PCH_GBE_PHY_RESET_DELAY_US; | ||
104 | /* Set function pointers */ | ||
105 | hw->func = &pch_gbe_ops; | ||
106 | } | ||
107 | |||
108 | /** | ||
109 | * pch_gbe_hal_setup_init_funcs - Initializes function pointers | ||
110 | * @hw: Pointer to the HW structure | ||
111 | * Returns | ||
112 | * 0: Successfully | ||
113 | * ENOSYS: Function is not registered | ||
114 | */ | ||
115 | inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw) | ||
116 | { | ||
117 | if (!hw->reg) { | ||
118 | pr_err("ERROR: Registers not mapped\n"); | ||
119 | return -ENOSYS; | ||
120 | } | ||
121 | pch_gbe_plat_init_function_pointers(hw); | ||
122 | return 0; | ||
123 | } | ||
124 | |||
125 | /** | ||
126 | * pch_gbe_hal_get_bus_info - Obtain bus information for adapter | ||
127 | * @hw: Pointer to the HW structure | ||
128 | */ | ||
129 | inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw) | ||
130 | { | ||
131 | if (!hw->func->get_bus_info) | ||
132 | pr_err("ERROR: configuration\n"); | ||
133 | else | ||
134 | hw->func->get_bus_info(hw); | ||
135 | } | ||
136 | |||
137 | /** | ||
138 | * pch_gbe_hal_init_hw - Initialize hardware | ||
139 | * @hw: Pointer to the HW structure | ||
140 | * Returns | ||
141 | * 0: Successfully | ||
142 | * ENOSYS: Function is not registered | ||
143 | */ | ||
144 | inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw) | ||
145 | { | ||
146 | if (!hw->func->init_hw) { | ||
147 | pr_err("ERROR: configuration\n"); | ||
148 | return -ENOSYS; | ||
149 | } | ||
150 | return hw->func->init_hw(hw); | ||
151 | } | ||
152 | |||
153 | /** | ||
154 | * pch_gbe_hal_read_phy_reg - Reads PHY register | ||
155 | * @hw: Pointer to the HW structure | ||
156 | * @offset: The register to read | ||
157 | * @data: The buffer to store the 16-bit read. | ||
158 | * Returns | ||
159 | * 0: Successfully | ||
160 | * Negative value: Failed | ||
161 | */ | ||
162 | inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset, | ||
163 | u16 *data) | ||
164 | { | ||
165 | if (!hw->func->read_phy_reg) | ||
166 | return 0; | ||
167 | return hw->func->read_phy_reg(hw, offset, data); | ||
168 | } | ||
169 | |||
170 | /** | ||
171 | * pch_gbe_hal_write_phy_reg - Writes PHY register | ||
172 | * @hw: Pointer to the HW structure | ||
173 | * @offset: The register to read | ||
174 | * @data: The value to write. | ||
175 | * Returns | ||
176 | * 0: Successfully | ||
177 | * Negative value: Failed | ||
178 | */ | ||
179 | inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset, | ||
180 | u16 data) | ||
181 | { | ||
182 | if (!hw->func->write_phy_reg) | ||
183 | return 0; | ||
184 | return hw->func->write_phy_reg(hw, offset, data); | ||
185 | } | ||
186 | |||
187 | /** | ||
188 | * pch_gbe_hal_phy_hw_reset - Hard PHY reset | ||
189 | * @hw: Pointer to the HW structure | ||
190 | */ | ||
191 | inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw) | ||
192 | { | ||
193 | if (!hw->func->reset_phy) | ||
194 | pr_err("ERROR: configuration\n"); | ||
195 | else | ||
196 | hw->func->reset_phy(hw); | ||
197 | } | ||
198 | |||
199 | /** | ||
200 | * pch_gbe_hal_phy_sw_reset - Soft PHY reset | ||
201 | * @hw: Pointer to the HW structure | ||
202 | */ | ||
203 | inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw) | ||
204 | { | ||
205 | if (!hw->func->sw_reset_phy) | ||
206 | pr_err("ERROR: configuration\n"); | ||
207 | else | ||
208 | hw->func->sw_reset_phy(hw); | ||
209 | } | ||
210 | |||
211 | /** | ||
212 | * pch_gbe_hal_read_mac_addr - Reads MAC address | ||
213 | * @hw: Pointer to the HW structure | ||
214 | * Returns | ||
215 | * 0: Successfully | ||
216 | * ENOSYS: Function is not registered | ||
217 | */ | ||
218 | inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw) | ||
219 | { | ||
220 | if (!hw->func->read_mac_addr) { | ||
221 | pr_err("ERROR: configuration\n"); | ||
222 | return -ENOSYS; | ||
223 | } | ||
224 | return hw->func->read_mac_addr(hw); | ||
225 | } | ||
226 | |||
227 | /** | ||
228 | * pch_gbe_hal_power_up_phy - Power up PHY | ||
229 | * @hw: Pointer to the HW structure | ||
230 | */ | ||
231 | inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw) | ||
232 | { | ||
233 | if (hw->func->power_up_phy) | ||
234 | hw->func->power_up_phy(hw); | ||
235 | } | ||
236 | |||
237 | /** | ||
238 | * pch_gbe_hal_power_down_phy - Power down PHY | ||
239 | * @hw: Pointer to the HW structure | ||
240 | */ | ||
241 | inline void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw) | ||
242 | { | ||
243 | if (hw->func->power_down_phy) | ||
244 | hw->func->power_down_phy(hw); | ||
245 | } | ||