1 #ifndef __THERM_PMAC_7_2_H__
2 #define __THERM_PMAC_7_2_H__
4 typedef unsigned short fu16;
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 */
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 */
64 /* Display a 16.16 fixed point value */
65 #define FIX32TOPRINT(f) ((f) >> 16),((((f) & 0xffff) * 1000) >> 16)
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
73 #define MAX_CRITICAL_STATE 30
74 static char * critical_overtemp_path = "/sbin/critical_overtemp";
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.
85 * I'm not sure which of these Apple's algorithm is supposed
88 #define RPM_PID_USE_ACTUAL_SPEED 0
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
98 #define FAN_CTRLER_ID 0x15e
99 #define SUPPLY_MONITOR_ID 0x58
100 #define SUPPLY_MONITORB_ID 0x5a
101 #define DRIVES_DALLAS_ID 0x94
102 #define BACKSIDE_MAX_ID 0x98
105 * Some MAX6690 & DS1775 register definitions
107 #define MAX6690_INT_TEMP 0
108 #define MAX6690_EXT_TEMP 1
109 #define DS1775_TEMP 0
112 * Scaling factors for the AD7417 ADC converters (except
113 * for the CPU diode which is obtained from the EEPROM).
114 * Those values are obtained from the property list of
117 #define ADC_12V_CURRENT_SCALE 0x0320 /* _AD2 */
118 #define ADC_CPU_VOLTAGE_SCALE 0x00a0 /* _AD3 */
119 #define ADC_CPU_CURRENT_SCALE 0x1f40 /* _AD4 */
122 * PID factors for the U3/Backside fan control loop. We have 2 sets
123 * of values here, one set for U3 and one set for U3H
125 #define BACKSIDE_FAN_PWM_DEFAULT_ID 1
126 #define BACKSIDE_FAN_PWM_INDEX 0
127 #define BACKSIDE_PID_U3_G_d 0x02800000
128 #define BACKSIDE_PID_U3H_G_d 0x01400000
129 #define BACKSIDE_PID_G_p 0x00500000
130 #define BACKSIDE_PID_G_r 0x00000000
131 #define BACKSIDE_PID_U3_INPUT_TARGET 0x00410000
132 #define BACKSIDE_PID_U3H_INPUT_TARGET 0x004b0000
133 #define BACKSIDE_PID_INTERVAL 5
134 #define BACKSIDE_PID_OUTPUT_MAX 100
135 #define BACKSIDE_PID_U3_OUTPUT_MIN 20
136 #define BACKSIDE_PID_U3H_OUTPUT_MIN 30
137 #define BACKSIDE_PID_HISTORY_SIZE 2
139 struct basckside_pid_params
149 struct backside_pid_state
152 struct i2c_client * monitor;
153 s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
154 s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
162 * PID factors for the Drive Bay fan control loop
164 #define DRIVES_FAN_RPM_DEFAULT_ID 2
165 #define DRIVES_FAN_RPM_INDEX 1
166 #define DRIVES_PID_G_d 0x01e00000
167 #define DRIVES_PID_G_p 0x00500000
168 #define DRIVES_PID_G_r 0x00000000
169 #define DRIVES_PID_INPUT_TARGET 0x00280000
170 #define DRIVES_PID_INTERVAL 5
171 #define DRIVES_PID_OUTPUT_MAX 4000
172 #define DRIVES_PID_OUTPUT_MIN 300
173 #define DRIVES_PID_HISTORY_SIZE 2
175 struct drives_pid_state
178 struct i2c_client * monitor;
179 s32 sample_history[BACKSIDE_PID_HISTORY_SIZE];
180 s32 error_history[BACKSIDE_PID_HISTORY_SIZE];
187 #define SLOTS_FAN_PWM_DEFAULT_ID 2
188 #define SLOTS_FAN_PWM_INDEX 2
189 #define SLOTS_FAN_DEFAULT_PWM 50 /* Do better here ! */
192 * IDs in Darwin for the sensors & fans
194 * CPU A AD7417_TEMP 10 (CPU A ambient temperature)
195 * CPU A AD7417_AD1 11 (CPU A diode temperature)
196 * CPU A AD7417_AD2 12 (CPU A 12V current)
197 * CPU A AD7417_AD3 13 (CPU A voltage)
198 * CPU A AD7417_AD4 14 (CPU A current)
200 * CPU A FAKE POWER 48 (I_V_inputs: 13, 14)
202 * CPU B AD7417_TEMP 15 (CPU B ambient temperature)
203 * CPU B AD7417_AD1 16 (CPU B diode temperature)
204 * CPU B AD7417_AD2 17 (CPU B 12V current)
205 * CPU B AD7417_AD3 18 (CPU B voltage)
206 * CPU B AD7417_AD4 19 (CPU B current)
208 * CPU B FAKE POWER 49 (I_V_inputs: 18, 19)
211 #define CPUA_INTAKE_FAN_RPM_DEFAULT_ID 3
212 #define CPUA_EXHAUST_FAN_RPM_DEFAULT_ID 4
213 #define CPUB_INTAKE_FAN_RPM_DEFAULT_ID 5
214 #define CPUB_EXHAUST_FAN_RPM_DEFAULT_ID 6
216 #define CPUA_INTAKE_FAN_RPM_INDEX 3
217 #define CPUA_EXHAUST_FAN_RPM_INDEX 4
218 #define CPUB_INTAKE_FAN_RPM_INDEX 5
219 #define CPUB_EXHAUST_FAN_RPM_INDEX 6
221 #define CPU_INTAKE_SCALE 0x0000f852
222 #define CPU_TEMP_HISTORY_SIZE 2
223 #define CPU_POWER_HISTORY_SIZE 10
224 #define CPU_PID_INTERVAL 1
225 #define CPU_MAX_OVERTEMP 30
227 #define CPUA_PUMP_RPM_INDEX 7
228 #define CPUB_PUMP_RPM_INDEX 8
229 #define CPU_PUMP_OUTPUT_MAX 3700
230 #define CPU_PUMP_OUTPUT_MIN 1000
235 struct i2c_client * monitor;
238 s32 temp_history[CPU_TEMP_HISTORY_SIZE];
240 s32 power_history[CPU_POWER_HISTORY_SIZE];
241 s32 error_history[CPU_POWER_HISTORY_SIZE];
265 #endif /* __THERM_PMAC_7_2_H__ */