1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4  *
5  * Based on the r8180 driver, which is:
6  * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al.
7  *
8  * Contact Information: wlanfae <wlanfae@realtek.com>
9  */
10 #ifndef _RTL_CORE_H
11 #define _RTL_CORE_H
12 
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/ioport.h>
16 #include <linux/sched.h>
17 #include <linux/types.h>
18 #include <linux/interrupt.h>
19 #include <linux/slab.h>
20 #include <linux/netdevice.h>
21 #include <linux/pci.h>
22 #include <linux/etherdevice.h>
23 #include <linux/delay.h>
24 #include <linux/rtnetlink.h>
25 #include <linux/wireless.h>
26 #include <linux/timer.h>
27 #include <linux/proc_fs.h>
28 #include <linux/if_arp.h>
29 #include <linux/random.h>
30 #include <linux/io.h>
31 
32 /* Need this defined before including local include files */
33 #define DRV_NAME "rtl819xE"
34 
35 #include "../rtllib.h"
36 
37 #include "r8192E_firmware.h"
38 #include "r8192E_hw.h"
39 
40 #include "r8190P_def.h"
41 #include "r8192E_dev.h"
42 
43 #include "rtl_eeprom.h"
44 #include "rtl_ps.h"
45 #include "rtl_pci.h"
46 #include "rtl_cam.h"
47 
48 #define DRV_COPYRIGHT		\
49 	"Copyright(c) 2008 - 2010 Realsil Semiconductor Corporation"
50 #define DRV_AUTHOR  "<wlanfae@realtek.com>"
51 #define DRV_VERSION  "0014.0401.2010"
52 
53 #define TOTAL_CAM_ENTRY		32
54 #define CAM_CONTENT_COUNT	8
55 
56 #define HAL_HW_PCI_REVISION_ID_8192PCIE		0x01
57 #define HAL_HW_PCI_REVISION_ID_8192SE	0x10
58 
59 #define RTLLIB_WATCH_DOG_TIME		2000
60 
61 #define MAX_DEV_ADDR_SIZE		8  /*support till 64 bit bus width OS*/
62 #define MAX_FIRMWARE_INFORMATION_SIZE   32
63 #define MAX_802_11_HEADER_LENGTH	(40 + MAX_FIRMWARE_INFORMATION_SIZE)
64 #define ENCRYPTION_MAX_OVERHEAD		128
65 #define MAX_FRAGMENT_COUNT		8
66 #define MAX_TRANSMIT_BUFFER_SIZE	\
67 	(1600 + (MAX_802_11_HEADER_LENGTH + ENCRYPTION_MAX_OVERHEAD) *	\
68 	 MAX_FRAGMENT_COUNT)
69 
70 #define CMDPACKET_FRAG_SIZE (4 * (MAX_TRANSMIT_BUFFER_SIZE / 4) - 8)
71 
72 #define DEFAULT_FRAG_THRESHOLD	2342U
73 #define MIN_FRAG_THRESHOLD	256U
74 #define DEFAULT_BEACONINTERVAL	0x64U
75 
76 #define DEFAULT_RETRY_RTS	7
77 #define DEFAULT_RETRY_DATA	7
78 
79 #define	PHY_RSSI_SLID_WIN_MAX			100
80 
81 #define TX_BB_GAIN_TABLE_LEN			37
82 #define CCK_TX_BB_GAIN_TABLE_LEN		23
83 
84 #define CHANNEL_PLAN_LEN			10
85 #define S_CRC_LEN				4
86 
87 #define NIC_SEND_HANG_THRESHOLD_NORMAL		4
88 #define NIC_SEND_HANG_THRESHOLD_POWERSAVE	8
89 
90 #define MAX_TX_QUEUE				9
91 
92 #define MAX_RX_COUNT				64
93 #define MAX_TX_QUEUE_COUNT			9
94 
95 extern int hwwep;
96 
97 enum nic_t {
98 	NIC_UNKNOWN     = 0,
99 	NIC_8192E       = 1,
100 	NIC_8190P       = 2,
101 	NIC_8192SE      = 4,
102 	NIC_8192CE	= 5,
103 	NIC_8192CU	= 6,
104 	NIC_8192DE	= 7,
105 	NIC_8192DU	= 8,
106 };
107 
108 enum rt_eeprom_type {
109 	EEPROM_93C46,
110 	EEPROM_93C56,
111 };
112 
113 enum dcmg_txcmd_op {
114 	TXCMD_TXRA_HISTORY_CTRL		= 0xFF900000,
115 	TXCMD_RESET_TX_PKT_BUFF		= 0xFF900001,
116 	TXCMD_RESET_RX_PKT_BUFF		= 0xFF900002,
117 	TXCMD_SET_TX_DURATION		= 0xFF900003,
118 	TXCMD_SET_RX_RSSI		= 0xFF900004,
119 	TXCMD_SET_TX_PWR_TRACKING	= 0xFF900005,
120 	TXCMD_XXXX_CTRL,
121 };
122 
123 enum rt_customer_id {
124 	RT_CID_DEFAULT	  = 0,
125 	RT_CID_TOSHIBA	  = 9,
126 	RT_CID_819X_NETCORE     = 10,
127 };
128 
129 enum reset_type {
130 	RESET_TYPE_NORESET = 0x00,
131 	RESET_TYPE_SILENT = 0x02
132 };
133 
134 struct rt_stats {
135 	unsigned long received_rate_histogram[4][32];
136 	unsigned long txbytesunicast;
137 	unsigned long rxbytesunicast;
138 	unsigned long txretrycount;
139 	u8	last_packet_rate;
140 	unsigned long slide_signal_strength[100];
141 	unsigned long slide_evm[100];
142 	unsigned long	slide_rssi_total;
143 	unsigned long slide_evm_total;
144 	long signal_strength;
145 	long last_signal_strength_inpercent;
146 	long	recv_signal_power;
147 	u8 rx_rssi_percentage[4];
148 	u8 rx_evm_percentage[2];
149 	u32 slide_beacon_pwdb[100];
150 	u32 slide_beacon_total;
151 	u32	CurrentShowTxate;
152 };
153 
154 struct init_gain {
155 	u8	xaagccore1;
156 	u8	xbagccore1;
157 	u8	xcagccore1;
158 	u8	xdagccore1;
159 	u8	cca;
160 
161 };
162 
163 struct tx_ring {
164 	u32 *desc;
165 	u8 nStuckCount;
166 	struct tx_ring *next;
167 } __packed;
168 
169 struct rtl8192_tx_ring {
170 	struct tx_desc *desc;
171 	dma_addr_t dma;
172 	unsigned int idx;
173 	unsigned int entries;
174 	struct sk_buff_head queue;
175 };
176 
177 struct r8192_priv {
178 	struct pci_dev *pdev;
179 	struct pci_dev *bridge_pdev;
180 
181 	bool		bfirst_after_down;
182 	bool		being_init_adapter;
183 
184 	int		irq;
185 	short	irq_enabled;
186 
187 	short	up;
188 	short	up_first_time;
189 	struct delayed_work		update_beacon_wq;
190 	struct delayed_work		watch_dog_wq;
191 	struct delayed_work		txpower_tracking_wq;
192 	struct delayed_work		rfpath_check_wq;
193 	struct delayed_work		gpio_change_rf_wq;
194 	struct rtllib_device			*rtllib;
195 
196 	struct work_struct				reset_wq;
197 
198 	enum rt_customer_id customer_id;
199 
200 	enum ht_channel_width current_chnl_bw;
201 	struct bb_reg_definition phy_reg_def[4];
202 	struct rate_adaptive rate_adaptive;
203 
204 	struct rt_firmware *fw_info;
205 	enum rtl819x_loopback loopback_mode;
206 
207 	struct timer_list			watch_dog_timer;
208 	struct timer_list			fsync_timer;
209 	struct timer_list			gpio_polling_timer;
210 
211 	spinlock_t				irq_th_lock;
212 	spinlock_t				tx_lock;
213 	spinlock_t				rf_ps_lock;
214 	spinlock_t				ps_lock;
215 
216 	struct sk_buff_head		skb_queue;
217 
218 	struct tasklet_struct		irq_rx_tasklet;
219 	struct tasklet_struct		irq_tx_tasklet;
220 
221 	struct mutex				wx_mutex;
222 	struct mutex				rf_mutex;
223 	struct mutex				mutex;
224 
225 	struct rt_stats stats;
226 	struct iw_statistics			wstats;
227 
228 	struct rx_desc *rx_ring;
229 	struct sk_buff	*rx_buf[MAX_RX_COUNT];
230 	dma_addr_t	rx_ring_dma;
231 	unsigned int	rx_idx;
232 	int		rxringcount;
233 	u16		rxbuffersize;
234 
235 	u32 receive_config;
236 	u8		retry_data;
237 	u8		retry_rts;
238 	u16		rts;
239 
240 	struct rtl8192_tx_ring tx_ring[MAX_TX_QUEUE_COUNT];
241 	int		 txringcount;
242 	atomic_t	tx_pending[0x10];
243 
244 	u16 short_retry_limit;
245 	u16 long_retry_limit;
246 
247 	bool		hw_radio_off;
248 	bool		blinked_ingpio;
249 	u8		polling_timer_on;
250 
251 	/**********************************************************/
252 	struct work_struct qos_activate;
253 
254 	short	promisc;
255 
256 	short	chan;
257 
258 	u32 irq_mask[2];
259 
260 	u8 rf_mode;
261 	enum nic_t card_8192;
262 	u8 card_8192_version;
263 
264 	u8 ic_cut;
265 	char nick[IW_ESSID_MAX_SIZE + 1];
266 	u8 check_roaming_cnt;
267 
268 	u32 silent_reset_rx_slot_index;
269 	u32 silent_reset_rx_stuck_event[MAX_SILENT_RESET_RX_SLOT_NUM];
270 
271 	u16 basic_rate;
272 	u8 short_preamble;
273 	u8 dot11_current_preamble_mode;
274 	u8 slot_time;
275 
276 	bool autoload_fail_flag;
277 
278 	short	epromtype;
279 	u16 eeprom_vid;
280 	u16 eeprom_did;
281 	u8 eeprom_customer_id;
282 
283 	u8 eeprom_tx_pwr_level_cck[14];
284 	u8 eeprom_tx_pwr_level_ofdm24g[14];
285 	u16 eeprom_ant_pwr_diff;
286 	u8 eeprom_thermal_meter;
287 	u8 eeprom_crystal_cap;
288 
289 	u8 eeprom_legacy_ht_tx_pwr_diff;
290 
291 	u8 crystal_cap;
292 	u8 thermal_meter[2];
293 
294 	u8 sw_chnl_in_progress;
295 	u8 sw_chnl_stage;
296 	u8 sw_chnl_step;
297 	u8 set_bw_mode_in_progress;
298 
299 	u8 n_cur_40mhz_prime_sc;
300 
301 	u32 rf_reg_0value[4];
302 	u8 num_total_rf_path;
303 	bool brfpath_rxenable[4];
304 
305 	bool tx_pwr_data_read_from_eeprom;
306 
307 	u8 hw_rf_off_action;
308 
309 	bool rf_change_in_progress;
310 	bool set_rf_pwr_state_in_progress;
311 
312 	u8 cck_pwr_enl;
313 	u16 tssi_13dBm;
314 	u32 pwr_track;
315 	u8 cck_present_attn_20m_def;
316 	u8 cck_present_attn_40m_def;
317 	s8 cck_present_attn_diff;
318 	s8 cck_present_attn;
319 	long undecorated_smoothed_pwdb;
320 
321 	u32 mcs_tx_pwr_level_org_offset[6];
322 	u8 tx_pwr_level_cck[14];
323 	u8 tx_pwr_level_ofdm_24g[14];
324 	u8 legacy_ht_tx_pwr_diff;
325 	u8 antenna_tx_pwr_diff[3];
326 
327 	bool		dynamic_tx_high_pwr;
328 	bool		dynamic_tx_low_pwr;
329 	bool		last_dtp_flag_high;
330 	bool		last_dtp_flag_low;
331 
332 	u8		rfa_txpowertrackingindex;
333 	u8		rfa_txpowertrackingindex_real;
334 	u8		rfa_txpowertracking_default;
335 	bool		btxpower_tracking;
336 	bool		bcck_in_ch14;
337 
338 	u8		txpower_count;
339 	bool		tx_pwr_tracking_init;
340 
341 	u8		ofdm_index[2];
342 	u8		cck_index;
343 
344 	u8		rec_cck_20m_idx;
345 	u8		rec_cck_40m_idx;
346 
347 	struct init_gain initgain_backup;
348 	u8		def_initial_gain[4];
349 	bool		bis_any_nonbepkts;
350 	bool		bcurrent_turbo_EDCA;
351 	bool		bis_cur_rdlstate;
352 
353 	u32		rate_record;
354 	u32		rate_count_diff_rec;
355 	u32		continue_diff_count;
356 	bool		bswitch_fsync;
357 	u8		framesync;
358 
359 	u16		tx_counter;
360 	u16		rx_ctr;
361 };
362 
363 extern const struct ethtool_ops rtl819x_ethtool_ops;
364 
365 u8 rtl92e_readb(struct net_device *dev, int x);
366 u32 rtl92e_readl(struct net_device *dev, int x);
367 u16 rtl92e_readw(struct net_device *dev, int x);
368 void rtl92e_writeb(struct net_device *dev, int x, u8 y);
369 void rtl92e_writew(struct net_device *dev, int x, u16 y);
370 void rtl92e_writel(struct net_device *dev, int x, u32 y);
371 
372 void force_pci_posting(struct net_device *dev);
373 
374 void rtl92e_rx_enable(struct net_device *dev);
375 void rtl92e_tx_enable(struct net_device *dev);
376 
377 void rtl92e_hw_sleep_wq(void *data);
378 void rtl92e_commit(struct net_device *dev);
379 
380 void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t);
381 
382 void rtl92e_hw_wakeup_wq(void *data);
383 
384 void rtl92e_reset_desc_ring(struct net_device *dev);
385 void rtl92e_set_wireless_mode(struct net_device *dev, u8 wireless_mode);
386 void rtl92e_irq_enable(struct net_device *dev);
387 void rtl92e_config_rate(struct net_device *dev, u16 *rate_config);
388 void rtl92e_irq_disable(struct net_device *dev);
389 
390 long rtl92e_translate_to_dbm(struct r8192_priv *priv, u8 signal_strength_index);
391 void rtl92e_update_rx_statistics(struct r8192_priv *priv,
392 				 struct rtllib_rx_stats *pprevious_stats);
393 u8 rtl92e_evm_db_to_percent(s8 value);
394 u8 rtl92e_rx_db_to_percent(s8 antpower);
395 void rtl92e_copy_mpdu_stats(struct rtllib_rx_stats *psrc_stats,
396 			    struct rtllib_rx_stats *ptarget_stats);
397 bool rtl92e_enable_nic(struct net_device *dev);
398 
399 bool rtl92e_set_rf_state(struct net_device *dev,
400 			 enum rt_rf_power_state state_to_set,
401 			 RT_RF_CHANGE_SOURCE change_source);
402 #endif
403