tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef __THERM_PMAC_7_2_H__
2#define __THERM_PMAC_7_2_H__
3
4typedef unsigned short fu16;
5typedef int fs32;
6typedef short fs16;
7
8struct mpu_data
9{
10 u8 signature; /* 0x00 - EEPROM sig. */
11 u8 bytes_used; /* 0x01 - Bytes used in eeprom (160 ?) */
12 u8 size; /* 0x02 - EEPROM size (256 ?) */
13 u8 version; /* 0x03 - EEPROM version */
14 u32 data_revision; /* 0x04 - Dataset revision */
15 u8 processor_bin_code[3]; /* 0x08 - Processor BIN code */
16 u8 bin_code_expansion; /* 0x0b - ??? (padding ?) */
17 u8 processor_num; /* 0x0c - Number of CPUs on this MPU */
18 u8 input_mul_bus_div; /* 0x0d - Clock input multiplier/bus divider */
19 u8 reserved1[2]; /* 0x0e - */
20 u32 input_clk_freq_high; /* 0x10 - Input clock frequency high */
21 u8 cpu_nb_target_cycles; /* 0x14 - ??? */
22 u8 cpu_statlat; /* 0x15 - ??? */
23 u8 cpu_snooplat; /* 0x16 - ??? */
24 u8 cpu_snoopacc; /* 0x17 - ??? */
25 u8 nb_paamwin; /* 0x18 - ??? */
26 u8 nb_statlat; /* 0x19 - ??? */
27 u8 nb_snooplat; /* 0x1a - ??? */
28 u8 nb_snoopwin; /* 0x1b - ??? */
29 u8 api_bus_mode; /* 0x1c - ??? */
30 u8 reserved2[3]; /* 0x1d - */
31 u32 input_clk_freq_low; /* 0x20 - Input clock frequency low */
32 u8 processor_card_slot; /* 0x24 - Processor card slot number */
33 u8 reserved3[2]; /* 0x25 - */
34 u8 padjmax; /* 0x27 - Max power adjustment (Not in OF!) */
35 u8 ttarget; /* 0x28 - Target temperature */
36 u8 tmax; /* 0x29 - Max temperature */
37 u8 pmaxh; /* 0x2a - Max power */
38 u8 tguardband; /* 0x2b - Guardband temp ??? Hist. len in OSX */
39 fs32 pid_gp; /* 0x2c - PID proportional gain */
40 fs32 pid_gr; /* 0x30 - PID reset gain */
41 fs32 pid_gd; /* 0x34 - PID derivative gain */
42 fu16 voph; /* 0x38 - Vop High */
43 fu16 vopl; /* 0x3a - Vop Low */
44 fs16 nactual_die; /* 0x3c - nActual Die */
45 fs16 nactual_heatsink; /* 0x3e - nActual Heatsink */
46 fs16 nactual_system; /* 0x40 - nActual System */
47 u16 calibration_flags; /* 0x42 - Calibration flags */
48 fu16 mdiode; /* 0x44 - Diode M value (scaling factor) */
49 fs16 bdiode; /* 0x46 - Diode B value (offset) */
50 fs32 theta_heat_sink; /* 0x48 - Theta heat sink */
51 u16 rminn_intake_fan; /* 0x4c - Intake fan min RPM */
52 u16 rmaxn_intake_fan; /* 0x4e - Intake fan max RPM */
53 u16 rminn_exhaust_fan; /* 0x50 - Exhaust fan min RPM */
54 u16 rmaxn_exhaust_fan; /* 0x52 - Exhaust fan max RPM */
55 u8 processor_part_num[8]; /* 0x54 - Processor part number XX pumps min/max */
56 u32 processor_lot_num; /* 0x5c - Processor lot number */
57 u8 orig_card_sernum[0x10]; /* 0x60 - Card original serial number */
58 u8 curr_card_sernum[0x10]; /* 0x70 - Card current serial number */
59 u8 mlb_sernum[0x18]; /* 0x80 - MLB serial number */
60 u32 checksum1; /* 0x98 - */
61 u32 checksum2; /* 0x9c - */
62}; /* Total size = 0xa0 */
63
64/* Display a 16.16 fixed point value */
65#define FIX32TOPRINT(f) ((f) >> 16),((((f) & 0xffff) * 1000) >> 16)
66
67/*
68 * Maximum number of seconds to be in critical state (after a
69 * normal shutdown attempt). If the machine isn't down after
70 * this counter elapses, we force an immediate machine power
71 * off.
72 */
73#define MAX_CRITICAL_STATE 30
74static char * critical_overtemp_path = "/sbin/critical_overtemp";
75
76/*
77 * This option is "weird" :) Basically, if you define this to 1
78 * the control loop for the RPMs fans (not PWMs) will apply the
79 * correction factor obtained from the PID to the _actual_ RPM
80 * speed read from the FCU.
81 * If you define the below constant to 0, then it will be
82 * applied to the setpoint RPM speed, that is basically the
83 * speed we proviously "asked" for.
84 *
85 * I'm not sure which of these Apple's algorithm is supposed
86 * to use
87 */
88#define RPM_PID_USE_ACTUAL_SPEED 0
89
90/*
91 * i2c IDs. Currently, we hard code those and assume that
92 * the FCU is on U3 bus 1 while all sensors are on U3 bus
93 * 0. This appear to be safe enough for this first version
94 * of the driver, though I would accept any clean patch
95 * doing a better use of the device-tree without turning the
96 * while i2c registration mecanism into a racy mess
97 *
98 * Note: Xserve changed this. We have some bits on the K2 bus,
99 * which I arbitrarily set to 0x200. Ultimately, we really want
100 * too lookup these in the device-tree though
101 */
102#define FAN_CTRLER_ID 0x15e
103#define SUPPLY_MONITOR_ID 0x58
104#define SUPPLY_MONITORB_ID 0x5a
105#define DRIVES_DALLAS_ID 0x94
106#define BACKSIDE_MAX_ID 0x98
107#define XSERVE_DIMMS_LM87 0x25a
108
109/*
110 * Some MAX6690, DS1775, LM87 register definitions
111 */
112#define MAX6690_INT_TEMP 0
113#define MAX6690_EXT_TEMP 1
114#define DS1775_TEMP 0
115#define LM87_INT_TEMP 0x27
116
117/*
118 * Scaling factors for the AD7417 ADC converters (except
119 * for the CPU diode which is obtained from the EEPROM).
120 * Those values are obtained from the property list of
121 * the darwin driver
122 */
123#define ADC_12V_CURRENT_SCALE 0x0320 /* _AD2 */
124#define ADC_CPU_VOLTAGE_SCALE 0x00a0 /* _AD3 */
125#define ADC_CPU_CURRENT_SCALE 0x1f40 /* _AD4 */
126
127/*
128 * PID factors for the U3/Backside fan control loop. We have 2 sets
129 * of values here, one set for U3 and one set for U3H
130 */
131#define BACKSIDE_FAN_PWM_DEFAULT_ID 1
132#define BACKSIDE_FAN_PWM_INDEX 0
133#define BACKSIDE_PID_U3_G_d 0x02800000
134#define BACKSIDE_PID_U3H_G_d 0x01400000
135#define BACKSIDE_PID_RACK_G_d 0x00500000
136#define BACKSIDE_PID_G_p 0x00500000
137#define BACKSIDE_PID_RACK_G_p 0x0004cccc
138#define BACKSIDE_PID_G_r 0x00000000
139#define BACKSIDE_PID_U3_INPUT_TARGET 0x00410000
140#define BACKSIDE_PID_U3H_INPUT_TARGET 0x004b0000
141#define BACKSIDE_PID_RACK_INPUT_TARGET 0x00460000
142#define BACKSIDE_PID_INTERVAL 5
143#define BACKSIDE_PID_RACK_INTERVAL 1
144#define BACKSIDE_PID_OUTPUT_MAX 100
145#define BACKSIDE_PID_U3_OUTPUT_MIN 20
146#define BACKSIDE_PID_U3H_OUTPUT_MIN 20
147#define BACKSIDE_PID_HISTORY_SIZE 2
148
149struct basckside_pid_params
150{
151 s32 G_d;
152 s32 G_p;
153 s32 G_r;
154 s32 input_target;
155 s32 output_min;
156 s32 output_max;
157 s32 interval;
158 int additive;
159};
160
161struct backside_pid_state
162{
163 int ticks;
164 struct i2c_client * monitor;
165 s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
166 s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
167 int cur_sample;
168 s32 last_temp;
169 int pwm;
170 int first;
171};
172
173/*
174 * PID factors for the Drive Bay fan control loop
175 */
176#define DRIVES_FAN_RPM_DEFAULT_ID 2
177#define DRIVES_FAN_RPM_INDEX 1
178#define DRIVES_PID_G_d 0x01e00000
179#define DRIVES_PID_G_p 0x00500000
180#define DRIVES_PID_G_r 0x00000000
181#define DRIVES_PID_INPUT_TARGET 0x00280000
182#define DRIVES_PID_INTERVAL 5
183#define DRIVES_PID_OUTPUT_MAX 4000
184#define DRIVES_PID_OUTPUT_MIN 300
185#define DRIVES_PID_HISTORY_SIZE 2
186
187struct drives_pid_state
188{
189 int ticks;
190 struct i2c_client * monitor;
191 s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
192 s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
193 int cur_sample;
194 s32 last_temp;
195 int rpm;
196 int first;
197};
198
199#define SLOTS_FAN_PWM_DEFAULT_ID 2
200#define SLOTS_FAN_PWM_INDEX 2
201#define SLOTS_FAN_DEFAULT_PWM 50 /* Do better here ! */
202
203
204/*
205 * PID factors for the Xserve DIMM control loop
206 */
207#define DIMM_PID_G_d 0
208#define DIMM_PID_G_p 0
209#define DIMM_PID_G_r 0x6553600
210#define DIMM_PID_INPUT_TARGET 3276800
211#define DIMM_PID_INTERVAL 1
212#define DIMM_PID_OUTPUT_MAX 14000
213#define DIMM_PID_OUTPUT_MIN 4000
214#define DIMM_PID_HISTORY_SIZE 20
215
216struct dimm_pid_state
217{
218 int ticks;
219 struct i2c_client * monitor;
220 s32 sample_history[DIMM_PID_HISTORY_SIZE];
221 s32 error_history[DIMM_PID_HISTORY_SIZE];
222 int cur_sample;
223 s32 last_temp;
224 int first;
225 int output;
226};
227
228
229
230/* Desktops */
231
232#define CPUA_INTAKE_FAN_RPM_DEFAULT_ID 3
233#define CPUA_EXHAUST_FAN_RPM_DEFAULT_ID 4
234#define CPUB_INTAKE_FAN_RPM_DEFAULT_ID 5
235#define CPUB_EXHAUST_FAN_RPM_DEFAULT_ID 6
236
237#define CPUA_INTAKE_FAN_RPM_INDEX 3
238#define CPUA_EXHAUST_FAN_RPM_INDEX 4
239#define CPUB_INTAKE_FAN_RPM_INDEX 5
240#define CPUB_EXHAUST_FAN_RPM_INDEX 6
241
242#define CPU_INTAKE_SCALE 0x0000f852
243#define CPU_TEMP_HISTORY_SIZE 2
244#define CPU_POWER_HISTORY_SIZE 10
245#define CPU_PID_INTERVAL 1
246#define CPU_MAX_OVERTEMP 30
247
248#define CPUA_PUMP_RPM_INDEX 7
249#define CPUB_PUMP_RPM_INDEX 8
250#define CPU_PUMP_OUTPUT_MAX 3200
251#define CPU_PUMP_OUTPUT_MIN 1250
252
253/* Xserve */
254#define CPU_A1_FAN_RPM_INDEX 9
255#define CPU_A2_FAN_RPM_INDEX 10
256#define CPU_A3_FAN_RPM_INDEX 11
257#define CPU_B1_FAN_RPM_INDEX 12
258#define CPU_B2_FAN_RPM_INDEX 13
259#define CPU_B3_FAN_RPM_INDEX 14
260
261
262struct cpu_pid_state
263{
264 int index;
265 struct i2c_client * monitor;
266 struct mpu_data mpu;
267 int overtemp;
268 s32 temp_history[CPU_TEMP_HISTORY_SIZE];
269 int cur_temp;
270 s32 power_history[CPU_POWER_HISTORY_SIZE];
271 s32 error_history[CPU_POWER_HISTORY_SIZE];
272 int cur_power;
273 int count_power;
274 int rpm;
275 int intake_rpm;
276 s32 voltage;
277 s32 current_a;
278 s32 last_temp;
279 s32 last_power;
280 int first;
281 u8 adc_config;
282 s32 pump_min;
283 s32 pump_max;
284};
285
286/*
287 * Driver state
288 */
289enum {
290 state_detached,
291 state_attaching,
292 state_attached,
293 state_detaching,
294};
295
296
297#endif /* __THERM_PMAC_7_2_H__ */