Linux Audio

Check our new training course

Buildroot integration, development and maintenance

Need a Buildroot system for your embedded project?
Loading...
v6.8
  1/* SPDX-License-Identifier: ISC */
  2/*
  3 * Copyright (c) 2005-2011 Atheros Communications Inc.
  4 * Copyright (c) 2011-2016 Qualcomm Atheros, Inc.
 
 
 
 
 
 
 
 
 
 
 
 
  5 */
  6
  7#ifndef __TARGADDRS_H__
  8#define __TARGADDRS_H__
  9
 10#include "hw.h"
 11
 12/*
 13 * xxx_HOST_INTEREST_ADDRESS is the address in Target RAM of the
 14 * host_interest structure.  It must match the address of the _host_interest
 15 * symbol (see linker script).
 16 *
 17 * Host Interest is shared between Host and Target in order to coordinate
 18 * between the two, and is intended to remain constant (with additions only
 19 * at the end) across software releases.
 20 *
 21 * All addresses are available here so that it's possible to
 22 * write a single binary that works with all Target Types.
 23 * May be used in assembler code as well as C.
 24 */
 25#define QCA988X_HOST_INTEREST_ADDRESS    0x00400800
 26#define HOST_INTEREST_MAX_SIZE          0x200
 27
 28/*
 29 * These are items that the Host may need to access via BMI or via the
 30 * Diagnostic Window. The position of items in this structure must remain
 31 * constant across firmware revisions! Types for each item must be fixed
 32 * size across target and host platforms. More items may be added at the end.
 33 */
 34struct host_interest {
 35	/*
 36	 * Pointer to application-defined area, if any.
 37	 * Set by Target application during startup.
 38	 */
 39	u32 hi_app_host_interest;			/* 0x00 */
 40
 41	/* Pointer to register dump area, valid after Target crash. */
 42	u32 hi_failure_state;				/* 0x04 */
 43
 44	/* Pointer to debug logging header */
 45	u32 hi_dbglog_hdr;				/* 0x08 */
 46
 47	u32 hi_unused0c;				/* 0x0c */
 48
 49	/*
 50	 * General-purpose flag bits, similar to SOC_OPTION_* flags.
 51	 * Can be used by application rather than by OS.
 52	 */
 53	u32 hi_option_flag;				/* 0x10 */
 54
 55	/*
 56	 * Boolean that determines whether or not to
 57	 * display messages on the serial port.
 58	 */
 59	u32 hi_serial_enable;				/* 0x14 */
 60
 61	/* Start address of DataSet index, if any */
 62	u32 hi_dset_list_head;				/* 0x18 */
 63
 64	/* Override Target application start address */
 65	u32 hi_app_start;				/* 0x1c */
 66
 67	/* Clock and voltage tuning */
 68	u32 hi_skip_clock_init;				/* 0x20 */
 69	u32 hi_core_clock_setting;			/* 0x24 */
 70	u32 hi_cpu_clock_setting;			/* 0x28 */
 71	u32 hi_system_sleep_setting;			/* 0x2c */
 72	u32 hi_xtal_control_setting;			/* 0x30 */
 73	u32 hi_pll_ctrl_setting_24ghz;			/* 0x34 */
 74	u32 hi_pll_ctrl_setting_5ghz;			/* 0x38 */
 75	u32 hi_ref_voltage_trim_setting;		/* 0x3c */
 76	u32 hi_clock_info;				/* 0x40 */
 77
 78	/* Host uses BE CPU or not */
 79	u32 hi_be;					/* 0x44 */
 80
 81	u32 hi_stack;	/* normal stack */			/* 0x48 */
 82	u32 hi_err_stack; /* error stack */		/* 0x4c */
 83	u32 hi_desired_cpu_speed_hz;			/* 0x50 */
 84
 85	/* Pointer to Board Data  */
 86	u32 hi_board_data;				/* 0x54 */
 87
 88	/*
 89	 * Indication of Board Data state:
 90	 *    0: board data is not yet initialized.
 91	 *    1: board data is initialized; unknown size
 92	 *   >1: number of bytes of initialized board data
 93	 */
 94	u32 hi_board_data_initialized;			/* 0x58 */
 95
 96	u32 hi_dset_ram_index_table;			/* 0x5c */
 97
 98	u32 hi_desired_baud_rate;			/* 0x60 */
 99	u32 hi_dbglog_config;				/* 0x64 */
100	u32 hi_end_ram_reserve_sz;			/* 0x68 */
101	u32 hi_mbox_io_block_sz;			/* 0x6c */
102
103	u32 hi_num_bpatch_streams;			/* 0x70 -- unused */
104	u32 hi_mbox_isr_yield_limit;			/* 0x74 */
105
106	u32 hi_refclk_hz;				/* 0x78 */
107	u32 hi_ext_clk_detected;			/* 0x7c */
108	u32 hi_dbg_uart_txpin;				/* 0x80 */
109	u32 hi_dbg_uart_rxpin;				/* 0x84 */
110	u32 hi_hci_uart_baud;				/* 0x88 */
111	u32 hi_hci_uart_pin_assignments;		/* 0x8C */
112
113	u32 hi_hci_uart_baud_scale_val;			/* 0x90 */
114	u32 hi_hci_uart_baud_step_val;			/* 0x94 */
115
116	u32 hi_allocram_start;				/* 0x98 */
117	u32 hi_allocram_sz;				/* 0x9c */
118	u32 hi_hci_bridge_flags;			/* 0xa0 */
119	u32 hi_hci_uart_support_pins;			/* 0xa4 */
120
121	u32 hi_hci_uart_pwr_mgmt_params;		/* 0xa8 */
122
123	/*
124	 * 0xa8 - [1]: 0 = UART FC active low, 1 = UART FC active high
125	 *        [31:16]: wakeup timeout in ms
126	 */
127	/* Pointer to extended board Data  */
128	u32 hi_board_ext_data;				/* 0xac */
129	u32 hi_board_ext_data_config;			/* 0xb0 */
130	/*
131	 * Bit [0]  :   valid
132	 * Bit[31:16:   size
133	 */
134	/*
135	 * hi_reset_flag is used to do some stuff when target reset.
136	 * such as restore app_start after warm reset or
137	 * preserve host Interest area, or preserve ROM data, literals etc.
138	 */
139	u32  hi_reset_flag;				/* 0xb4 */
140	/* indicate hi_reset_flag is valid */
141	u32  hi_reset_flag_valid;			/* 0xb8 */
142	u32 hi_hci_uart_pwr_mgmt_params_ext;		/* 0xbc */
143	/* 0xbc - [31:0]: idle timeout in ms */
144	/* ACS flags */
145	u32 hi_acs_flags;				/* 0xc0 */
146	u32 hi_console_flags;				/* 0xc4 */
147	u32 hi_nvram_state;				/* 0xc8 */
148	u32 hi_option_flag2;				/* 0xcc */
149
150	/* If non-zero, override values sent to Host in WMI_READY event. */
151	u32 hi_sw_version_override;			/* 0xd0 */
152	u32 hi_abi_version_override;			/* 0xd4 */
153
154	/*
155	 * Percentage of high priority RX traffic to total expected RX traffic
156	 * applicable only to ar6004
157	 */
158	u32 hi_hp_rx_traffic_ratio;			/* 0xd8 */
159
160	/* test applications flags */
161	u32 hi_test_apps_related;			/* 0xdc */
162	/* location of test script */
163	u32 hi_ota_testscript;				/* 0xe0 */
164	/* location of CAL data */
165	u32 hi_cal_data;				/* 0xe4 */
166
167	/* Number of packet log buffers */
168	u32 hi_pktlog_num_buffers;			/* 0xe8 */
169
170	/* wow extension configuration */
171	u32 hi_wow_ext_config;				/* 0xec */
172	u32 hi_pwr_save_flags;				/* 0xf0 */
173
174	/* Spatial Multiplexing Power Save (SMPS) options */
175	u32 hi_smps_options;				/* 0xf4 */
176
177	/* Interconnect-specific state */
178	u32 hi_interconnect_state;			/* 0xf8 */
179
180	/* Coex configuration flags */
181	u32 hi_coex_config;				/* 0xfc */
182
183	/* Early allocation support */
184	u32 hi_early_alloc;				/* 0x100 */
185	/* FW swap field */
186	/*
187	 * Bits of this 32bit word will be used to pass specific swap
188	 * instruction to FW
189	 */
190	/*
191	 * Bit 0 -- AP Nart descriptor no swap. When this bit is set
192	 * FW will not swap TX descriptor. Meaning packets are formed
193	 * on the target processor.
194	 */
195	/* Bit 1 - unused */
196	u32 hi_fw_swap;					/* 0x104 */
197
198	/* global arenas pointer address, used by host driver debug */
199	u32 hi_dynamic_mem_arenas_addr;			/* 0x108 */
200
201	/* allocated bytes of DRAM use by allocated */
202	u32 hi_dynamic_mem_allocated;			/* 0x10C */
203
204	/* remaining bytes of DRAM */
205	u32 hi_dynamic_mem_remaining;			/* 0x110 */
206
207	/* memory track count, configured by host */
208	u32 hi_dynamic_mem_track_max;			/* 0x114 */
209
210	/* minidump buffer */
211	u32 hi_minidump;				/* 0x118 */
212
213	/* bdata's sig and key addr */
214	u32 hi_bd_sig_key;				/* 0x11c */
215} __packed;
216
217#define HI_ITEM(item)  offsetof(struct host_interest, item)
218
219/* Bits defined in hi_option_flag */
220
221/* Enable timer workaround */
222#define HI_OPTION_TIMER_WAR         0x01
223/* Limit BMI command credits */
224#define HI_OPTION_BMI_CRED_LIMIT    0x02
225/* Relay Dot11 hdr to/from host */
226#define HI_OPTION_RELAY_DOT11_HDR   0x04
227/* MAC addr method 0-locally administred 1-globally unique addrs */
228#define HI_OPTION_MAC_ADDR_METHOD   0x08
229/* Firmware Bridging */
230#define HI_OPTION_FW_BRIDGE         0x10
231/* Enable CPU profiling */
232#define HI_OPTION_ENABLE_PROFILE    0x20
233/* Disable debug logging */
234#define HI_OPTION_DISABLE_DBGLOG    0x40
235/* Skip Era Tracking */
236#define HI_OPTION_SKIP_ERA_TRACKING 0x80
237/* Disable PAPRD (debug) */
238#define HI_OPTION_PAPRD_DISABLE     0x100
239#define HI_OPTION_NUM_DEV_LSB       0x200
240#define HI_OPTION_NUM_DEV_MSB       0x800
241#define HI_OPTION_DEV_MODE_LSB      0x1000
242#define HI_OPTION_DEV_MODE_MSB      0x8000000
243/* Disable LowFreq Timer Stabilization */
244#define HI_OPTION_NO_LFT_STBL       0x10000000
245/* Skip regulatory scan */
246#define HI_OPTION_SKIP_REG_SCAN     0x20000000
247/*
248 * Do regulatory scan during init before
249 * sending WMI ready event to host
250 */
251#define HI_OPTION_INIT_REG_SCAN     0x40000000
252
253/* REV6: Do not adjust memory map */
254#define HI_OPTION_SKIP_MEMMAP       0x80000000
255
256#define HI_OPTION_MAC_ADDR_METHOD_SHIFT 3
257
258/* 2 bits of hi_option_flag are used to represent 3 modes */
259#define HI_OPTION_FW_MODE_IBSS    0x0 /* IBSS Mode */
260#define HI_OPTION_FW_MODE_BSS_STA 0x1 /* STA Mode */
261#define HI_OPTION_FW_MODE_AP      0x2 /* AP Mode */
262#define HI_OPTION_FW_MODE_BT30AMP 0x3 /* BT30 AMP Mode */
263
264/* 2 bits of hi_option flag are usedto represent 4 submodes */
265#define HI_OPTION_FW_SUBMODE_NONE    0x0  /* Normal mode */
266#define HI_OPTION_FW_SUBMODE_P2PDEV  0x1  /* p2p device mode */
267#define HI_OPTION_FW_SUBMODE_P2PCLIENT 0x2 /* p2p client mode */
268#define HI_OPTION_FW_SUBMODE_P2PGO   0x3 /* p2p go mode */
269
270/* Num dev Mask */
271#define HI_OPTION_NUM_DEV_MASK    0x7
272#define HI_OPTION_NUM_DEV_SHIFT   0x9
273
274/* firmware bridging */
275#define HI_OPTION_FW_BRIDGE_SHIFT 0x04
276
277/*
278 * Fw Mode/SubMode Mask
279 *-----------------------------------------------------------------------------
280 *  SUB   |   SUB   |   SUB   |  SUB    |         |         |         |
281 *MODE[3] | MODE[2] | MODE[1] | MODE[0] | MODE[3] | MODE[2] | MODE[1] | MODE[0]
282 *  (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)
283 *-----------------------------------------------------------------------------
284 */
285#define HI_OPTION_FW_MODE_BITS         0x2
286#define HI_OPTION_FW_MODE_MASK         0x3
287#define HI_OPTION_FW_MODE_SHIFT        0xC
288#define HI_OPTION_ALL_FW_MODE_MASK     0xFF
289
290#define HI_OPTION_FW_SUBMODE_BITS      0x2
291#define HI_OPTION_FW_SUBMODE_MASK      0x3
292#define HI_OPTION_FW_SUBMODE_SHIFT     0x14
293#define HI_OPTION_ALL_FW_SUBMODE_MASK  0xFF00
294#define HI_OPTION_ALL_FW_SUBMODE_SHIFT 0x8
295
296/* hi_option_flag2 options */
297#define HI_OPTION_OFFLOAD_AMSDU     0x01
298#define HI_OPTION_DFS_SUPPORT       0x02 /* Enable DFS support */
299#define HI_OPTION_ENABLE_RFKILL     0x04 /* RFKill Enable Feature*/
300#define HI_OPTION_RADIO_RETENTION_DISABLE 0x08 /* Disable radio retention */
301#define HI_OPTION_EARLY_CFG_DONE    0x10 /* Early configuration is complete */
302
303#define HI_OPTION_RF_KILL_SHIFT     0x2
304#define HI_OPTION_RF_KILL_MASK      0x1
305
306/* hi_reset_flag */
307/* preserve App Start address */
308#define HI_RESET_FLAG_PRESERVE_APP_START         0x01
309/* preserve host interest */
310#define HI_RESET_FLAG_PRESERVE_HOST_INTEREST     0x02
311/* preserve ROM data */
312#define HI_RESET_FLAG_PRESERVE_ROMDATA           0x04
313#define HI_RESET_FLAG_PRESERVE_NVRAM_STATE       0x08
314#define HI_RESET_FLAG_PRESERVE_BOOT_INFO         0x10
315#define HI_RESET_FLAG_WARM_RESET	0x20
316
317/* define hi_fw_swap bits */
318#define HI_DESC_IN_FW_BIT	0x01
319
320/* indicate the reset flag is valid */
321#define HI_RESET_FLAG_IS_VALID  0x12345678
322
323/* ACS is enabled */
324#define HI_ACS_FLAGS_ENABLED        (1 << 0)
325/* Use physical WWAN device */
326#define HI_ACS_FLAGS_USE_WWAN       (1 << 1)
327/* Use test VAP */
328#define HI_ACS_FLAGS_TEST_VAP       (1 << 2)
329/* SDIO/mailbox ACS flag definitions */
330#define HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_SET       (1 << 0)
331#define HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET    (1 << 1)
332#define HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE        (1 << 2)
333#define HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_FW_ACK    (1 << 16)
334#define HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_FW_ACK (1 << 17)
335
336/*
337 * If both SDIO_CRASH_DUMP_ENHANCEMENT_HOST and SDIO_CRASH_DUMP_ENHANCEMENT_FW
338 * flags are set, then crashdump upload will be done using the BMI host/target
339 * communication channel.
340 */
341/* HOST to support using BMI dump FW memory when hit assert */
342#define HI_OPTION_SDIO_CRASH_DUMP_ENHANCEMENT_HOST 0x400
343
344/* FW to support using BMI dump FW memory when hit assert */
345#define HI_OPTION_SDIO_CRASH_DUMP_ENHANCEMENT_FW   0x800
346
347/*
348 * CONSOLE FLAGS
349 *
350 * Bit Range  Meaning
351 * ---------  --------------------------------
352 *   2..0     UART ID (0 = Default)
353 *    3       Baud Select (0 = 9600, 1 = 115200)
354 *   30..4    Reserved
355 *    31      Enable Console
356 *
357 */
358
359#define HI_CONSOLE_FLAGS_ENABLE       (1 << 31)
360#define HI_CONSOLE_FLAGS_UART_MASK    (0x7)
361#define HI_CONSOLE_FLAGS_UART_SHIFT   0
362#define HI_CONSOLE_FLAGS_BAUD_SELECT  (1 << 3)
363
364/* SM power save options */
365#define HI_SMPS_ALLOW_MASK            (0x00000001)
366#define HI_SMPS_MODE_MASK             (0x00000002)
367#define HI_SMPS_MODE_STATIC           (0x00000000)
368#define HI_SMPS_MODE_DYNAMIC          (0x00000002)
369#define HI_SMPS_DISABLE_AUTO_MODE     (0x00000004)
370#define HI_SMPS_DATA_THRESH_MASK      (0x000007f8)
371#define HI_SMPS_DATA_THRESH_SHIFT     (3)
372#define HI_SMPS_RSSI_THRESH_MASK      (0x0007f800)
373#define HI_SMPS_RSSI_THRESH_SHIFT     (11)
374#define HI_SMPS_LOWPWR_CM_MASK        (0x00380000)
375#define HI_SMPS_LOWPWR_CM_SHIFT       (15)
376#define HI_SMPS_HIPWR_CM_MASK         (0x03c00000)
377#define HI_SMPS_HIPWR_CM_SHIFT        (19)
378
379/*
380 * WOW Extension configuration
381 *
382 * Bit Range  Meaning
383 * ---------  --------------------------------
384 *   8..0     Size of each WOW pattern (max 511)
385 *   15..9    Number of patterns per list (max 127)
386 *   17..16   Number of lists (max 4)
387 *   30..18   Reserved
388 *   31       Enabled
389 *
390 *  set values (except enable) to zeros for default settings
391 */
392
393#define HI_WOW_EXT_ENABLED_MASK        (1 << 31)
394#define HI_WOW_EXT_NUM_LIST_SHIFT      16
395#define HI_WOW_EXT_NUM_LIST_MASK       (0x3 << HI_WOW_EXT_NUM_LIST_SHIFT)
396#define HI_WOW_EXT_NUM_PATTERNS_SHIFT  9
397#define HI_WOW_EXT_NUM_PATTERNS_MASK   (0x7F << HI_WOW_EXT_NUM_PATTERNS_SHIFT)
398#define HI_WOW_EXT_PATTERN_SIZE_SHIFT  0
399#define HI_WOW_EXT_PATTERN_SIZE_MASK   (0x1FF << HI_WOW_EXT_PATTERN_SIZE_SHIFT)
400
401#define HI_WOW_EXT_MAKE_CONFIG(num_lists, count, size) \
402	((((num_lists) << HI_WOW_EXT_NUM_LIST_SHIFT) & \
403		HI_WOW_EXT_NUM_LIST_MASK) | \
404	(((count) << HI_WOW_EXT_NUM_PATTERNS_SHIFT) & \
405		HI_WOW_EXT_NUM_PATTERNS_MASK) | \
406	(((size) << HI_WOW_EXT_PATTERN_SIZE_SHIFT) & \
407		HI_WOW_EXT_PATTERN_SIZE_MASK))
408
409#define HI_WOW_EXT_GET_NUM_LISTS(config) \
410	(((config) & HI_WOW_EXT_NUM_LIST_MASK) >> HI_WOW_EXT_NUM_LIST_SHIFT)
411#define HI_WOW_EXT_GET_NUM_PATTERNS(config) \
412	(((config) & HI_WOW_EXT_NUM_PATTERNS_MASK) >> \
413		HI_WOW_EXT_NUM_PATTERNS_SHIFT)
414#define HI_WOW_EXT_GET_PATTERN_SIZE(config) \
415	(((config) & HI_WOW_EXT_PATTERN_SIZE_MASK) >> \
416		HI_WOW_EXT_PATTERN_SIZE_SHIFT)
417
418/*
419 * Early allocation configuration
420 * Support RAM bank configuration before BMI done and this eases the memory
421 * allocation at very early stage
422 * Bit Range  Meaning
423 * ---------  ----------------------------------
424 * [0:3]      number of bank assigned to be IRAM
425 * [4:15]     reserved
426 * [16:31]    magic number
427 *
428 * Note:
429 * 1. target firmware would check magic number and if it's a match, firmware
430 *    would consider the bits[0:15] are valid and base on that to calculate
431 *    the end of DRAM. Early allocation would be located at that area and
432 *    may be reclaimed when necessary
433 * 2. if no magic number is found, early allocation would happen at "_end"
434 *    symbol of ROM which is located before the app-data and might NOT be
435 *    re-claimable. If this is adopted, link script should keep this in
436 *    mind to avoid data corruption.
437 */
438#define HI_EARLY_ALLOC_MAGIC		0x6d8a
439#define HI_EARLY_ALLOC_MAGIC_MASK	0xffff0000
440#define HI_EARLY_ALLOC_MAGIC_SHIFT	16
441#define HI_EARLY_ALLOC_IRAM_BANKS_MASK	0x0000000f
442#define HI_EARLY_ALLOC_IRAM_BANKS_SHIFT	0
443
444#define HI_EARLY_ALLOC_VALID() \
445	((((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_MAGIC_MASK) >> \
446	HI_EARLY_ALLOC_MAGIC_SHIFT) == (HI_EARLY_ALLOC_MAGIC))
447#define HI_EARLY_ALLOC_GET_IRAM_BANKS() \
448	(((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_IRAM_BANKS_MASK) \
449	>> HI_EARLY_ALLOC_IRAM_BANKS_SHIFT)
450
451/*power save flag bit definitions*/
452#define HI_PWR_SAVE_LPL_ENABLED   0x1
453/*b1-b3 reserved*/
454/*b4-b5 : dev0 LPL type : 0 - none
455 *			  1- Reduce Pwr Search
456 *			  2- Reduce Pwr Listen
457 */
458/*b6-b7 : dev1 LPL type and so on for Max 8 devices*/
459#define HI_PWR_SAVE_LPL_DEV0_LSB   4
460#define HI_PWR_SAVE_LPL_DEV_MASK   0x3
461/*power save related utility macros*/
462#define HI_LPL_ENABLED() \
463	((HOST_INTEREST->hi_pwr_save_flags & HI_PWR_SAVE_LPL_ENABLED))
464#define HI_DEV_LPL_TYPE_GET(_devix) \
465	(HOST_INTEREST->hi_pwr_save_flags & ((HI_PWR_SAVE_LPL_DEV_MASK) << \
466	 (HI_PWR_SAVE_LPL_DEV0_LSB + (_devix) * 2)))
467
468#define HOST_INTEREST_SMPS_IS_ALLOWED() \
469	((HOST_INTEREST->hi_smps_options & HI_SMPS_ALLOW_MASK))
470
471/* Reserve 1024 bytes for extended board data */
472#define QCA988X_BOARD_DATA_SZ     7168
473#define QCA988X_BOARD_EXT_DATA_SZ 0
474
475#define QCA9887_BOARD_DATA_SZ     7168
476#define QCA9887_BOARD_EXT_DATA_SZ 0
477
478#define QCA6174_BOARD_DATA_SZ     8192
479#define QCA6174_BOARD_EXT_DATA_SZ 0
480
481#define QCA9377_BOARD_DATA_SZ     QCA6174_BOARD_DATA_SZ
482#define QCA9377_BOARD_EXT_DATA_SZ 0
483
484#define QCA99X0_BOARD_DATA_SZ	  12288
485#define QCA99X0_BOARD_EXT_DATA_SZ 0
486
487/* Dual band extended board data */
488#define QCA99X0_EXT_BOARD_DATA_SZ 2048
489#define EXT_BOARD_ADDRESS_OFFSET 0x3000
490
491#define QCA4019_BOARD_DATA_SZ	  12064
492#define QCA4019_BOARD_EXT_DATA_SZ 0
493
494#endif /* __TARGADDRS_H__ */
v4.17
 
  1/*
  2 * Copyright (c) 2005-2011 Atheros Communications Inc.
  3 * Copyright (c) 2011-2016 Qualcomm Atheros, Inc.
  4 *
  5 * Permission to use, copy, modify, and/or distribute this software for any
  6 * purpose with or without fee is hereby granted, provided that the above
  7 * copyright notice and this permission notice appear in all copies.
  8 *
  9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 16 */
 17
 18#ifndef __TARGADDRS_H__
 19#define __TARGADDRS_H__
 20
 21#include "hw.h"
 22
 23/*
 24 * xxx_HOST_INTEREST_ADDRESS is the address in Target RAM of the
 25 * host_interest structure.  It must match the address of the _host_interest
 26 * symbol (see linker script).
 27 *
 28 * Host Interest is shared between Host and Target in order to coordinate
 29 * between the two, and is intended to remain constant (with additions only
 30 * at the end) across software releases.
 31 *
 32 * All addresses are available here so that it's possible to
 33 * write a single binary that works with all Target Types.
 34 * May be used in assembler code as well as C.
 35 */
 36#define QCA988X_HOST_INTEREST_ADDRESS    0x00400800
 37#define HOST_INTEREST_MAX_SIZE          0x200
 38
 39/*
 40 * These are items that the Host may need to access via BMI or via the
 41 * Diagnostic Window. The position of items in this structure must remain
 42 * constant across firmware revisions! Types for each item must be fixed
 43 * size across target and host platforms. More items may be added at the end.
 44 */
 45struct host_interest {
 46	/*
 47	 * Pointer to application-defined area, if any.
 48	 * Set by Target application during startup.
 49	 */
 50	u32 hi_app_host_interest;			/* 0x00 */
 51
 52	/* Pointer to register dump area, valid after Target crash. */
 53	u32 hi_failure_state;				/* 0x04 */
 54
 55	/* Pointer to debug logging header */
 56	u32 hi_dbglog_hdr;				/* 0x08 */
 57
 58	u32 hi_unused0c;				/* 0x0c */
 59
 60	/*
 61	 * General-purpose flag bits, similar to SOC_OPTION_* flags.
 62	 * Can be used by application rather than by OS.
 63	 */
 64	u32 hi_option_flag;				/* 0x10 */
 65
 66	/*
 67	 * Boolean that determines whether or not to
 68	 * display messages on the serial port.
 69	 */
 70	u32 hi_serial_enable;				/* 0x14 */
 71
 72	/* Start address of DataSet index, if any */
 73	u32 hi_dset_list_head;				/* 0x18 */
 74
 75	/* Override Target application start address */
 76	u32 hi_app_start;				/* 0x1c */
 77
 78	/* Clock and voltage tuning */
 79	u32 hi_skip_clock_init;				/* 0x20 */
 80	u32 hi_core_clock_setting;			/* 0x24 */
 81	u32 hi_cpu_clock_setting;			/* 0x28 */
 82	u32 hi_system_sleep_setting;			/* 0x2c */
 83	u32 hi_xtal_control_setting;			/* 0x30 */
 84	u32 hi_pll_ctrl_setting_24ghz;			/* 0x34 */
 85	u32 hi_pll_ctrl_setting_5ghz;			/* 0x38 */
 86	u32 hi_ref_voltage_trim_setting;		/* 0x3c */
 87	u32 hi_clock_info;				/* 0x40 */
 88
 89	/* Host uses BE CPU or not */
 90	u32 hi_be;					/* 0x44 */
 91
 92	u32 hi_stack;	/* normal stack */			/* 0x48 */
 93	u32 hi_err_stack; /* error stack */		/* 0x4c */
 94	u32 hi_desired_cpu_speed_hz;			/* 0x50 */
 95
 96	/* Pointer to Board Data  */
 97	u32 hi_board_data;				/* 0x54 */
 98
 99	/*
100	 * Indication of Board Data state:
101	 *    0: board data is not yet initialized.
102	 *    1: board data is initialized; unknown size
103	 *   >1: number of bytes of initialized board data
104	 */
105	u32 hi_board_data_initialized;			/* 0x58 */
106
107	u32 hi_dset_ram_index_table;			/* 0x5c */
108
109	u32 hi_desired_baud_rate;			/* 0x60 */
110	u32 hi_dbglog_config;				/* 0x64 */
111	u32 hi_end_ram_reserve_sz;			/* 0x68 */
112	u32 hi_mbox_io_block_sz;			/* 0x6c */
113
114	u32 hi_num_bpatch_streams;			/* 0x70 -- unused */
115	u32 hi_mbox_isr_yield_limit;			/* 0x74 */
116
117	u32 hi_refclk_hz;				/* 0x78 */
118	u32 hi_ext_clk_detected;			/* 0x7c */
119	u32 hi_dbg_uart_txpin;				/* 0x80 */
120	u32 hi_dbg_uart_rxpin;				/* 0x84 */
121	u32 hi_hci_uart_baud;				/* 0x88 */
122	u32 hi_hci_uart_pin_assignments;		/* 0x8C */
123
124	u32 hi_hci_uart_baud_scale_val;			/* 0x90 */
125	u32 hi_hci_uart_baud_step_val;			/* 0x94 */
126
127	u32 hi_allocram_start;				/* 0x98 */
128	u32 hi_allocram_sz;				/* 0x9c */
129	u32 hi_hci_bridge_flags;			/* 0xa0 */
130	u32 hi_hci_uart_support_pins;			/* 0xa4 */
131
132	u32 hi_hci_uart_pwr_mgmt_params;		/* 0xa8 */
133
134	/*
135	 * 0xa8 - [1]: 0 = UART FC active low, 1 = UART FC active high
136	 *        [31:16]: wakeup timeout in ms
137	 */
138	/* Pointer to extended board Data  */
139	u32 hi_board_ext_data;				/* 0xac */
140	u32 hi_board_ext_data_config;			/* 0xb0 */
141	/*
142	 * Bit [0]  :   valid
143	 * Bit[31:16:   size
144	 */
145	/*
146	 * hi_reset_flag is used to do some stuff when target reset.
147	 * such as restore app_start after warm reset or
148	 * preserve host Interest area, or preserve ROM data, literals etc.
149	 */
150	u32  hi_reset_flag;				/* 0xb4 */
151	/* indicate hi_reset_flag is valid */
152	u32  hi_reset_flag_valid;			/* 0xb8 */
153	u32 hi_hci_uart_pwr_mgmt_params_ext;		/* 0xbc */
154	/* 0xbc - [31:0]: idle timeout in ms */
155	/* ACS flags */
156	u32 hi_acs_flags;				/* 0xc0 */
157	u32 hi_console_flags;				/* 0xc4 */
158	u32 hi_nvram_state;				/* 0xc8 */
159	u32 hi_option_flag2;				/* 0xcc */
160
161	/* If non-zero, override values sent to Host in WMI_READY event. */
162	u32 hi_sw_version_override;			/* 0xd0 */
163	u32 hi_abi_version_override;			/* 0xd4 */
164
165	/*
166	 * Percentage of high priority RX traffic to total expected RX traffic
167	 * applicable only to ar6004
168	 */
169	u32 hi_hp_rx_traffic_ratio;			/* 0xd8 */
170
171	/* test applications flags */
172	u32 hi_test_apps_related;			/* 0xdc */
173	/* location of test script */
174	u32 hi_ota_testscript;				/* 0xe0 */
175	/* location of CAL data */
176	u32 hi_cal_data;				/* 0xe4 */
177
178	/* Number of packet log buffers */
179	u32 hi_pktlog_num_buffers;			/* 0xe8 */
180
181	/* wow extension configuration */
182	u32 hi_wow_ext_config;				/* 0xec */
183	u32 hi_pwr_save_flags;				/* 0xf0 */
184
185	/* Spatial Multiplexing Power Save (SMPS) options */
186	u32 hi_smps_options;				/* 0xf4 */
187
188	/* Interconnect-specific state */
189	u32 hi_interconnect_state;			/* 0xf8 */
190
191	/* Coex configuration flags */
192	u32 hi_coex_config;				/* 0xfc */
193
194	/* Early allocation support */
195	u32 hi_early_alloc;				/* 0x100 */
196	/* FW swap field */
197	/*
198	 * Bits of this 32bit word will be used to pass specific swap
199	 * instruction to FW
200	 */
201	/*
202	 * Bit 0 -- AP Nart descriptor no swap. When this bit is set
203	 * FW will not swap TX descriptor. Meaning packets are formed
204	 * on the target processor.
205	 */
206	/* Bit 1 - unused */
207	u32 hi_fw_swap;					/* 0x104 */
208
209	/* global arenas pointer address, used by host driver debug */
210	u32 hi_dynamic_mem_arenas_addr;			/* 0x108 */
211
212	/* allocated bytes of DRAM use by allocated */
213	u32 hi_dynamic_mem_allocated;			/* 0x10C */
214
215	/* remaining bytes of DRAM */
216	u32 hi_dynamic_mem_remaining;			/* 0x110 */
217
218	/* memory track count, configured by host */
219	u32 hi_dynamic_mem_track_max;			/* 0x114 */
220
221	/* minidump buffer */
222	u32 hi_minidump;				/* 0x118 */
223
224	/* bdata's sig and key addr */
225	u32 hi_bd_sig_key;				/* 0x11c */
226} __packed;
227
228#define HI_ITEM(item)  offsetof(struct host_interest, item)
229
230/* Bits defined in hi_option_flag */
231
232/* Enable timer workaround */
233#define HI_OPTION_TIMER_WAR         0x01
234/* Limit BMI command credits */
235#define HI_OPTION_BMI_CRED_LIMIT    0x02
236/* Relay Dot11 hdr to/from host */
237#define HI_OPTION_RELAY_DOT11_HDR   0x04
238/* MAC addr method 0-locally administred 1-globally unique addrs */
239#define HI_OPTION_MAC_ADDR_METHOD   0x08
240/* Firmware Bridging */
241#define HI_OPTION_FW_BRIDGE         0x10
242/* Enable CPU profiling */
243#define HI_OPTION_ENABLE_PROFILE    0x20
244/* Disable debug logging */
245#define HI_OPTION_DISABLE_DBGLOG    0x40
246/* Skip Era Tracking */
247#define HI_OPTION_SKIP_ERA_TRACKING 0x80
248/* Disable PAPRD (debug) */
249#define HI_OPTION_PAPRD_DISABLE     0x100
250#define HI_OPTION_NUM_DEV_LSB       0x200
251#define HI_OPTION_NUM_DEV_MSB       0x800
252#define HI_OPTION_DEV_MODE_LSB      0x1000
253#define HI_OPTION_DEV_MODE_MSB      0x8000000
254/* Disable LowFreq Timer Stabilization */
255#define HI_OPTION_NO_LFT_STBL       0x10000000
256/* Skip regulatory scan */
257#define HI_OPTION_SKIP_REG_SCAN     0x20000000
258/*
259 * Do regulatory scan during init before
260 * sending WMI ready event to host
261 */
262#define HI_OPTION_INIT_REG_SCAN     0x40000000
263
264/* REV6: Do not adjust memory map */
265#define HI_OPTION_SKIP_MEMMAP       0x80000000
266
267#define HI_OPTION_MAC_ADDR_METHOD_SHIFT 3
268
269/* 2 bits of hi_option_flag are used to represent 3 modes */
270#define HI_OPTION_FW_MODE_IBSS    0x0 /* IBSS Mode */
271#define HI_OPTION_FW_MODE_BSS_STA 0x1 /* STA Mode */
272#define HI_OPTION_FW_MODE_AP      0x2 /* AP Mode */
273#define HI_OPTION_FW_MODE_BT30AMP 0x3 /* BT30 AMP Mode */
274
275/* 2 bits of hi_option flag are usedto represent 4 submodes */
276#define HI_OPTION_FW_SUBMODE_NONE    0x0  /* Normal mode */
277#define HI_OPTION_FW_SUBMODE_P2PDEV  0x1  /* p2p device mode */
278#define HI_OPTION_FW_SUBMODE_P2PCLIENT 0x2 /* p2p client mode */
279#define HI_OPTION_FW_SUBMODE_P2PGO   0x3 /* p2p go mode */
280
281/* Num dev Mask */
282#define HI_OPTION_NUM_DEV_MASK    0x7
283#define HI_OPTION_NUM_DEV_SHIFT   0x9
284
285/* firmware bridging */
286#define HI_OPTION_FW_BRIDGE_SHIFT 0x04
287
288/*
289 * Fw Mode/SubMode Mask
290 *-----------------------------------------------------------------------------
291 *  SUB   |   SUB   |   SUB   |  SUB    |         |         |         |
292 *MODE[3] | MODE[2] | MODE[1] | MODE[0] | MODE[3] | MODE[2] | MODE[1] | MODE[0]
293 *  (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)
294 *-----------------------------------------------------------------------------
295 */
296#define HI_OPTION_FW_MODE_BITS         0x2
297#define HI_OPTION_FW_MODE_MASK         0x3
298#define HI_OPTION_FW_MODE_SHIFT        0xC
299#define HI_OPTION_ALL_FW_MODE_MASK     0xFF
300
301#define HI_OPTION_FW_SUBMODE_BITS      0x2
302#define HI_OPTION_FW_SUBMODE_MASK      0x3
303#define HI_OPTION_FW_SUBMODE_SHIFT     0x14
304#define HI_OPTION_ALL_FW_SUBMODE_MASK  0xFF00
305#define HI_OPTION_ALL_FW_SUBMODE_SHIFT 0x8
306
307/* hi_option_flag2 options */
308#define HI_OPTION_OFFLOAD_AMSDU     0x01
309#define HI_OPTION_DFS_SUPPORT       0x02 /* Enable DFS support */
310#define HI_OPTION_ENABLE_RFKILL     0x04 /* RFKill Enable Feature*/
311#define HI_OPTION_RADIO_RETENTION_DISABLE 0x08 /* Disable radio retention */
312#define HI_OPTION_EARLY_CFG_DONE    0x10 /* Early configuration is complete */
313
314#define HI_OPTION_RF_KILL_SHIFT     0x2
315#define HI_OPTION_RF_KILL_MASK      0x1
316
317/* hi_reset_flag */
318/* preserve App Start address */
319#define HI_RESET_FLAG_PRESERVE_APP_START         0x01
320/* preserve host interest */
321#define HI_RESET_FLAG_PRESERVE_HOST_INTEREST     0x02
322/* preserve ROM data */
323#define HI_RESET_FLAG_PRESERVE_ROMDATA           0x04
324#define HI_RESET_FLAG_PRESERVE_NVRAM_STATE       0x08
325#define HI_RESET_FLAG_PRESERVE_BOOT_INFO         0x10
326#define HI_RESET_FLAG_WARM_RESET	0x20
327
328/* define hi_fw_swap bits */
329#define HI_DESC_IN_FW_BIT	0x01
330
331/* indicate the reset flag is valid */
332#define HI_RESET_FLAG_IS_VALID  0x12345678
333
334/* ACS is enabled */
335#define HI_ACS_FLAGS_ENABLED        (1 << 0)
336/* Use physical WWAN device */
337#define HI_ACS_FLAGS_USE_WWAN       (1 << 1)
338/* Use test VAP */
339#define HI_ACS_FLAGS_TEST_VAP       (1 << 2)
340/* SDIO/mailbox ACS flag definitions */
341#define HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_SET       (1 << 0)
342#define HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET    (1 << 1)
343#define HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE        (1 << 2)
344#define HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_FW_ACK    (1 << 16)
345#define HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_FW_ACK (1 << 17)
346
347/*
 
 
 
 
 
 
 
 
 
 
 
348 * CONSOLE FLAGS
349 *
350 * Bit Range  Meaning
351 * ---------  --------------------------------
352 *   2..0     UART ID (0 = Default)
353 *    3       Baud Select (0 = 9600, 1 = 115200)
354 *   30..4    Reserved
355 *    31      Enable Console
356 *
357 */
358
359#define HI_CONSOLE_FLAGS_ENABLE       (1 << 31)
360#define HI_CONSOLE_FLAGS_UART_MASK    (0x7)
361#define HI_CONSOLE_FLAGS_UART_SHIFT   0
362#define HI_CONSOLE_FLAGS_BAUD_SELECT  (1 << 3)
363
364/* SM power save options */
365#define HI_SMPS_ALLOW_MASK            (0x00000001)
366#define HI_SMPS_MODE_MASK             (0x00000002)
367#define HI_SMPS_MODE_STATIC           (0x00000000)
368#define HI_SMPS_MODE_DYNAMIC          (0x00000002)
369#define HI_SMPS_DISABLE_AUTO_MODE     (0x00000004)
370#define HI_SMPS_DATA_THRESH_MASK      (0x000007f8)
371#define HI_SMPS_DATA_THRESH_SHIFT     (3)
372#define HI_SMPS_RSSI_THRESH_MASK      (0x0007f800)
373#define HI_SMPS_RSSI_THRESH_SHIFT     (11)
374#define HI_SMPS_LOWPWR_CM_MASK        (0x00380000)
375#define HI_SMPS_LOWPWR_CM_SHIFT       (15)
376#define HI_SMPS_HIPWR_CM_MASK         (0x03c00000)
377#define HI_SMPS_HIPWR_CM_SHIFT        (19)
378
379/*
380 * WOW Extension configuration
381 *
382 * Bit Range  Meaning
383 * ---------  --------------------------------
384 *   8..0     Size of each WOW pattern (max 511)
385 *   15..9    Number of patterns per list (max 127)
386 *   17..16   Number of lists (max 4)
387 *   30..18   Reserved
388 *   31       Enabled
389 *
390 *  set values (except enable) to zeros for default settings
391 */
392
393#define HI_WOW_EXT_ENABLED_MASK        (1 << 31)
394#define HI_WOW_EXT_NUM_LIST_SHIFT      16
395#define HI_WOW_EXT_NUM_LIST_MASK       (0x3 << HI_WOW_EXT_NUM_LIST_SHIFT)
396#define HI_WOW_EXT_NUM_PATTERNS_SHIFT  9
397#define HI_WOW_EXT_NUM_PATTERNS_MASK   (0x7F << HI_WOW_EXT_NUM_PATTERNS_SHIFT)
398#define HI_WOW_EXT_PATTERN_SIZE_SHIFT  0
399#define HI_WOW_EXT_PATTERN_SIZE_MASK   (0x1FF << HI_WOW_EXT_PATTERN_SIZE_SHIFT)
400
401#define HI_WOW_EXT_MAKE_CONFIG(num_lists, count, size) \
402	((((num_lists) << HI_WOW_EXT_NUM_LIST_SHIFT) & \
403		HI_WOW_EXT_NUM_LIST_MASK) | \
404	(((count) << HI_WOW_EXT_NUM_PATTERNS_SHIFT) & \
405		HI_WOW_EXT_NUM_PATTERNS_MASK) | \
406	(((size) << HI_WOW_EXT_PATTERN_SIZE_SHIFT) & \
407		HI_WOW_EXT_PATTERN_SIZE_MASK))
408
409#define HI_WOW_EXT_GET_NUM_LISTS(config) \
410	(((config) & HI_WOW_EXT_NUM_LIST_MASK) >> HI_WOW_EXT_NUM_LIST_SHIFT)
411#define HI_WOW_EXT_GET_NUM_PATTERNS(config) \
412	(((config) & HI_WOW_EXT_NUM_PATTERNS_MASK) >> \
413		HI_WOW_EXT_NUM_PATTERNS_SHIFT)
414#define HI_WOW_EXT_GET_PATTERN_SIZE(config) \
415	(((config) & HI_WOW_EXT_PATTERN_SIZE_MASK) >> \
416		HI_WOW_EXT_PATTERN_SIZE_SHIFT)
417
418/*
419 * Early allocation configuration
420 * Support RAM bank configuration before BMI done and this eases the memory
421 * allocation at very early stage
422 * Bit Range  Meaning
423 * ---------  ----------------------------------
424 * [0:3]      number of bank assigned to be IRAM
425 * [4:15]     reserved
426 * [16:31]    magic number
427 *
428 * Note:
429 * 1. target firmware would check magic number and if it's a match, firmware
430 *    would consider the bits[0:15] are valid and base on that to calculate
431 *    the end of DRAM. Early allocation would be located at that area and
432 *    may be reclaimed when necessary
433 * 2. if no magic number is found, early allocation would happen at "_end"
434 *    symbol of ROM which is located before the app-data and might NOT be
435 *    re-claimable. If this is adopted, link script should keep this in
436 *    mind to avoid data corruption.
437 */
438#define HI_EARLY_ALLOC_MAGIC		0x6d8a
439#define HI_EARLY_ALLOC_MAGIC_MASK	0xffff0000
440#define HI_EARLY_ALLOC_MAGIC_SHIFT	16
441#define HI_EARLY_ALLOC_IRAM_BANKS_MASK	0x0000000f
442#define HI_EARLY_ALLOC_IRAM_BANKS_SHIFT	0
443
444#define HI_EARLY_ALLOC_VALID() \
445	((((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_MAGIC_MASK) >> \
446	HI_EARLY_ALLOC_MAGIC_SHIFT) == (HI_EARLY_ALLOC_MAGIC))
447#define HI_EARLY_ALLOC_GET_IRAM_BANKS() \
448	(((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_IRAM_BANKS_MASK) \
449	>> HI_EARLY_ALLOC_IRAM_BANKS_SHIFT)
450
451/*power save flag bit definitions*/
452#define HI_PWR_SAVE_LPL_ENABLED   0x1
453/*b1-b3 reserved*/
454/*b4-b5 : dev0 LPL type : 0 - none
455 *			  1- Reduce Pwr Search
456 *			  2- Reduce Pwr Listen
457 */
458/*b6-b7 : dev1 LPL type and so on for Max 8 devices*/
459#define HI_PWR_SAVE_LPL_DEV0_LSB   4
460#define HI_PWR_SAVE_LPL_DEV_MASK   0x3
461/*power save related utility macros*/
462#define HI_LPL_ENABLED() \
463	((HOST_INTEREST->hi_pwr_save_flags & HI_PWR_SAVE_LPL_ENABLED))
464#define HI_DEV_LPL_TYPE_GET(_devix) \
465	(HOST_INTEREST->hi_pwr_save_flags & ((HI_PWR_SAVE_LPL_DEV_MASK) << \
466	 (HI_PWR_SAVE_LPL_DEV0_LSB + (_devix) * 2)))
467
468#define HOST_INTEREST_SMPS_IS_ALLOWED() \
469	((HOST_INTEREST->hi_smps_options & HI_SMPS_ALLOW_MASK))
470
471/* Reserve 1024 bytes for extended board data */
472#define QCA988X_BOARD_DATA_SZ     7168
473#define QCA988X_BOARD_EXT_DATA_SZ 0
474
475#define QCA9887_BOARD_DATA_SZ     7168
476#define QCA9887_BOARD_EXT_DATA_SZ 0
477
478#define QCA6174_BOARD_DATA_SZ     8192
479#define QCA6174_BOARD_EXT_DATA_SZ 0
480
481#define QCA9377_BOARD_DATA_SZ     QCA6174_BOARD_DATA_SZ
482#define QCA9377_BOARD_EXT_DATA_SZ 0
483
484#define QCA99X0_BOARD_DATA_SZ	  12288
485#define QCA99X0_BOARD_EXT_DATA_SZ 0
 
 
 
 
486
487#define QCA4019_BOARD_DATA_SZ	  12064
488#define QCA4019_BOARD_EXT_DATA_SZ 0
489
490#endif /* __TARGADDRS_H__ */