1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 Realtek Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #ifndef __RTL_PCI_H__
27 #define __RTL_PCI_H__
28
29 #include <linux/pci.h>
30 /*
31 1: MSDU packet queue,
32 2: Rx Command Queue
33 */
34 #define RTL_PCI_RX_MPDU_QUEUE 0
35 #define RTL_PCI_RX_CMD_QUEUE 1
36 #define RTL_PCI_MAX_RX_QUEUE 2
37
38 #define RTL_PCI_MAX_RX_COUNT 512/*64*/
39 #define RTL_PCI_MAX_TX_QUEUE_COUNT 9
40
41 #define RT_TXDESC_NUM 128
42 #define TX_DESC_NUM_92E 512
43 #define RT_TXDESC_NUM_BE_QUEUE 256
44
45 #define BK_QUEUE 0
46 #define BE_QUEUE 1
47 #define VI_QUEUE 2
48 #define VO_QUEUE 3
49 #define BEACON_QUEUE 4
50 #define TXCMD_QUEUE 5
51 #define MGNT_QUEUE 6
52 #define HIGH_QUEUE 7
53 #define HCCA_QUEUE 8
54
55 #define RTL_PCI_DEVICE(vend, dev, cfg) \
56 .vendor = (vend), \
57 .device = (dev), \
58 .subvendor = PCI_ANY_ID, \
59 .subdevice = PCI_ANY_ID,\
60 .driver_data = (kernel_ulong_t)&(cfg)
61
62 #define INTEL_VENDOR_ID 0x8086
63 #define SIS_VENDOR_ID 0x1039
64 #define ATI_VENDOR_ID 0x1002
65 #define ATI_DEVICE_ID 0x7914
66 #define AMD_VENDOR_ID 0x1022
67
68 #define PCI_MAX_BRIDGE_NUMBER 255
69 #define PCI_MAX_DEVICES 32
70 #define PCI_MAX_FUNCTION 8
71
72 #define PCI_CONF_ADDRESS 0x0CF8 /*PCI Configuration Space Address */
73 #define PCI_CONF_DATA 0x0CFC /*PCI Configuration Space Data */
74
75 #define PCI_CLASS_BRIDGE_DEV 0x06
76 #define PCI_SUBCLASS_BR_PCI_TO_PCI 0x04
77 #define PCI_CAPABILITY_ID_PCI_EXPRESS 0x10
78 #define PCI_CAP_ID_EXP 0x10
79
80 #define U1DONTCARE 0xFF
81 #define U2DONTCARE 0xFFFF
82 #define U4DONTCARE 0xFFFFFFFF
83
84 #define RTL_PCI_8192_DID 0x8192 /*8192 PCI-E */
85 #define RTL_PCI_8192SE_DID 0x8192 /*8192 SE */
86 #define RTL_PCI_8174_DID 0x8174 /*8192 SE */
87 #define RTL_PCI_8173_DID 0x8173 /*8191 SE Crab */
88 #define RTL_PCI_8172_DID 0x8172 /*8191 SE RE */
89 #define RTL_PCI_8171_DID 0x8171 /*8191 SE Unicron */
90 #define RTL_PCI_8723AE_DID 0x8723 /*8723AE */
91 #define RTL_PCI_0045_DID 0x0045 /*8190 PCI for Ceraga */
92 #define RTL_PCI_0046_DID 0x0046 /*8190 Cardbus for Ceraga */
93 #define RTL_PCI_0044_DID 0x0044 /*8192e PCIE for Ceraga */
94 #define RTL_PCI_0047_DID 0x0047 /*8192e Express Card for Ceraga */
95 #define RTL_PCI_700F_DID 0x700F
96 #define RTL_PCI_701F_DID 0x701F
97 #define RTL_PCI_DLINK_DID 0x3304
98 #define RTL_PCI_8723AE_DID 0x8723 /*8723e */
99 #define RTL_PCI_8192CET_DID 0x8191 /*8192ce */
100 #define RTL_PCI_8192CE_DID 0x8178 /*8192ce */
101 #define RTL_PCI_8191CE_DID 0x8177 /*8192ce */
102 #define RTL_PCI_8188CE_DID 0x8176 /*8192ce */
103 #define RTL_PCI_8192CU_DID 0x8191 /*8192ce */
104 #define RTL_PCI_8192DE_DID 0x8193 /*8192de */
105 #define RTL_PCI_8192DE_DID2 0x002B /*92DE*/
106 #define RTL_PCI_8188EE_DID 0x8179 /*8188ee*/
107 #define RTL_PCI_8723BE_DID 0xB723 /*8723be*/
108 #define RTL_PCI_8192EE_DID 0x818B /*8192ee*/
109 #define RTL_PCI_8821AE_DID 0x8821 /*8821ae*/
110 #define RTL_PCI_8812AE_DID 0x8812 /*8812ae*/
111
112 /*8192 support 16 pages of IO registers*/
113 #define RTL_MEM_MAPPED_IO_RANGE_8190PCI 0x1000
114 #define RTL_MEM_MAPPED_IO_RANGE_8192PCIE 0x4000
115 #define RTL_MEM_MAPPED_IO_RANGE_8192SE 0x4000
116 #define RTL_MEM_MAPPED_IO_RANGE_8192CE 0x4000
117 #define RTL_MEM_MAPPED_IO_RANGE_8192DE 0x4000
118
119 #define RTL_PCI_REVISION_ID_8190PCI 0x00
120 #define RTL_PCI_REVISION_ID_8192PCIE 0x01
121 #define RTL_PCI_REVISION_ID_8192SE 0x10
122 #define RTL_PCI_REVISION_ID_8192CE 0x1
123 #define RTL_PCI_REVISION_ID_8192DE 0x0
124
125 #define RTL_DEFAULT_HARDWARE_TYPE HARDWARE_TYPE_RTL8192CE
126
127 enum pci_bridge_vendor {
128 PCI_BRIDGE_VENDOR_INTEL = 0x0, /*0b'0000,0001 */
129 PCI_BRIDGE_VENDOR_ATI, /*0b'0000,0010*/
130 PCI_BRIDGE_VENDOR_AMD, /*0b'0000,0100*/
131 PCI_BRIDGE_VENDOR_SIS, /*0b'0000,1000*/
132 PCI_BRIDGE_VENDOR_UNKNOWN, /*0b'0100,0000*/
133 PCI_BRIDGE_VENDOR_MAX,
134 };
135
136 struct rtl_pci_capabilities_header {
137 u8 capability_id;
138 u8 next;
139 };
140
141 /* In new TRX flow, Buffer_desc is new concept
142 * But TX wifi info == TX descriptor in old flow
143 * RX wifi info == RX descriptor in old flow
144 */
145 struct rtl_tx_buffer_desc {
146 #if (RTL8192EE_SEG_NUM == 2)
147 u32 dword[2*(DMA_IS_64BIT + 1)*8]; /*seg = 8*/
148 #elif (RTL8192EE_SEG_NUM == 1)
149 u32 dword[2*(DMA_IS_64BIT + 1)*4]; /*seg = 4*/
150 #elif (RTL8192EE_SEG_NUM == 0)
151 u32 dword[2*(DMA_IS_64BIT + 1)*2]; /*seg = 2*/
152 #endif
153 } __packed;
154
155 struct rtl_tx_desc {
156 u32 dword[16];
157 } __packed;
158
159 struct rtl_rx_buffer_desc { /*rx buffer desc*/
160 u32 dword[2];
161 } __packed;
162
163 struct rtl_rx_desc { /*old: rx desc new: rx wifi info*/
164 u32 dword[8];
165 } __packed;
166
167 struct rtl_tx_cmd_desc {
168 u32 dword[16];
169 } __packed;
170
171 struct rtl8192_tx_ring {
172 struct rtl_tx_desc *desc;
173 dma_addr_t dma;
174 unsigned int idx;
175 unsigned int entries;
176 struct sk_buff_head queue;
177 /*add for new trx flow*/
178 struct rtl_tx_buffer_desc *buffer_desc; /*tx buffer descriptor*/
179 dma_addr_t buffer_desc_dma; /*tx bufferd desc dma memory*/
180 u16 avl_desc; /* available_desc_to_write */
181 u16 cur_tx_wp; /* current_tx_write_point */
182 u16 cur_tx_rp; /* current_tx_read_point */
183 };
184
185 struct rtl8192_rx_ring {
186 struct rtl_rx_desc *desc;
187 dma_addr_t dma;
188 unsigned int idx;
189 struct sk_buff *rx_buf[RTL_PCI_MAX_RX_COUNT];
190 /*add for new trx flow*/
191 struct rtl_rx_buffer_desc *buffer_desc; /*rx buffer descriptor*/
192 u16 next_rx_rp; /* next_rx_read_point */
193 };
194
195 struct rtl_pci {
196 struct pci_dev *pdev;
197 bool irq_enabled;
198
199 bool driver_is_goingto_unload;
200 bool up_first_time;
201 bool first_init;
202 bool being_init_adapter;
203 bool init_ready;
204
205 /*Tx */
206 struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT];
207 int txringcount[RTL_PCI_MAX_TX_QUEUE_COUNT];
208 u32 transmit_config;
209
210 /*Rx */
211 struct rtl8192_rx_ring rx_ring[RTL_PCI_MAX_RX_QUEUE];
212 int rxringcount;
213 u16 rxbuffersize;
214 u32 receive_config;
215
216 /*irq */
217 u8 irq_alloc;
218 u32 irq_mask[2];
219 u32 sys_irq_mask;
220
221 /*Bcn control register setting */
222 u32 reg_bcn_ctrl_val;
223
224 /*ASPM*/ u8 const_pci_aspm;
225 u8 const_amdpci_aspm;
226 u8 const_hwsw_rfoff_d3;
227 u8 const_support_pciaspm;
228 /*pci-e bridge */
229 u8 const_hostpci_aspm_setting;
230 /*pci-e device */
231 u8 const_devicepci_aspm_setting;
232 /*If it supports ASPM, Offset[560h] = 0x40,
233 otherwise Offset[560h] = 0x00. */
234 bool support_aspm;
235 bool support_backdoor;
236
237 /*QOS & EDCA */
238 enum acm_method acm_method;
239
240 u16 shortretry_limit;
241 u16 longretry_limit;
242
243 /* MSI support */
244 bool msi_support;
245 bool using_msi;
246 /* interrupt clear before set */
247 bool int_clear;
248 };
249
250 struct mp_adapter {
251 u8 linkctrl_reg;
252
253 u8 busnumber;
254 u8 devnumber;
255 u8 funcnumber;
256
257 u8 pcibridge_busnum;
258 u8 pcibridge_devnum;
259 u8 pcibridge_funcnum;
260
261 u8 pcibridge_vendor;
262 u16 pcibridge_vendorid;
263 u16 pcibridge_deviceid;
264
265 u8 num4bytes;
266
267 u8 pcibridge_pciehdr_offset;
268 u8 pcibridge_linkctrlreg;
269
270 bool amd_l1_patch;
271 };
272
273 struct rtl_pci_priv {
274 struct bt_coexist_info bt_coexist;
275 struct rtl_led_ctl ledctl;
276 struct rtl_pci dev;
277 struct mp_adapter ndis_adapter;
278 };
279
280 #define rtl_pcipriv(hw) (((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
281 #define rtl_pcidev(pcipriv) (&((pcipriv)->dev))
282
283 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw);
284
285 extern const struct rtl_intf_ops rtl_pci_ops;
286
287 int rtl_pci_probe(struct pci_dev *pdev,
288 const struct pci_device_id *id);
289 void rtl_pci_disconnect(struct pci_dev *pdev);
290 #ifdef CONFIG_PM_SLEEP
291 int rtl_pci_suspend(struct device *dev);
292 int rtl_pci_resume(struct device *dev);
293 #endif /* CONFIG_PM_SLEEP */
pci_read8_sync(struct rtl_priv * rtlpriv,u32 addr)294 static inline u8 pci_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
295 {
296 return readb((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
297 }
298
pci_read16_sync(struct rtl_priv * rtlpriv,u32 addr)299 static inline u16 pci_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
300 {
301 return readw((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
302 }
303
pci_read32_sync(struct rtl_priv * rtlpriv,u32 addr)304 static inline u32 pci_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
305 {
306 return readl((u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
307 }
308
pci_write8_async(struct rtl_priv * rtlpriv,u32 addr,u8 val)309 static inline void pci_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
310 {
311 writeb(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
312 }
313
pci_write16_async(struct rtl_priv * rtlpriv,u32 addr,u16 val)314 static inline void pci_write16_async(struct rtl_priv *rtlpriv,
315 u32 addr, u16 val)
316 {
317 writew(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
318 }
319
pci_write32_async(struct rtl_priv * rtlpriv,u32 addr,u32 val)320 static inline void pci_write32_async(struct rtl_priv *rtlpriv,
321 u32 addr, u32 val)
322 {
323 writel(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
324 }
325
calc_fifo_space(u16 rp,u16 wp)326 static inline u16 calc_fifo_space(u16 rp, u16 wp)
327 {
328 if (rp <= wp)
329 return RTL_PCI_MAX_RX_COUNT - 1 + rp - wp;
330 return rp - wp - 1;
331 }
332
333 #endif
334