litmus-rt-pandaboard.git - LITMUS^RT and MC^2 V0 support for the pandaboard.

diff options

author	Scott Wood <scottwood@freescale.com>	2011-05-09 17:26:00 -0400
committer	Kumar Gala <galak@kernel.crashing.org>	2011-05-19 01:36:43 -0400
commit	3a6e9bd7f60b29efc205485ceb11a768032c40d4 (patch)
tree	4e54010c5fc5636d985e146fc0fccb9372d41502
parent	d36b4c4f3cc6caae6d4a12d9f995513e4c3acdd5 (diff)

powerpc/e5500: set non-base IVORs

Without this, we attempt to use doorbells for IPIs, and end up branching to some bad address. Plus, even for the exceptions we don't implement, it's good to handle it and get a message out. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Diffstat

-rw-r--r--

arch/powerpc/include/asm/reg_booke.h

-rw-r--r--

arch/powerpc/kernel/cpu_setup_fsl_booke.S

-rw-r--r--

arch/powerpc/kernel/exceptions-64e.S

3 files changed, 54 insertions, 0 deletions


diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index 817bd1ac175..0f0ad9fa01c 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h
@@ -83,6 +83,10 @@
83	#define SPRN_IVOR13 0x19D /* Interrupt Vector Offset Register 13 */	83	#define SPRN_IVOR13 0x19D /* Interrupt Vector Offset Register 13 */
84	#define SPRN_IVOR14 0x19E /* Interrupt Vector Offset Register 14 */	84	#define SPRN_IVOR14 0x19E /* Interrupt Vector Offset Register 14 */
85	#define SPRN_IVOR15 0x19F /* Interrupt Vector Offset Register 15 */	85	#define SPRN_IVOR15 0x19F /* Interrupt Vector Offset Register 15 */
		86	#define SPRN_IVOR38 0x1B0 /* Interrupt Vector Offset Register 38 */
		87	#define SPRN_IVOR39 0x1B1 /* Interrupt Vector Offset Register 39 */
		88	#define SPRN_IVOR40 0x1B2 /* Interrupt Vector Offset Register 40 */
		89	#define SPRN_IVOR41 0x1B3 /* Interrupt Vector Offset Register 41 */
86	#define SPRN_SPEFSCR 0x200 /* SPE & Embedded FP Status & Control */	90	#define SPRN_SPEFSCR 0x200 /* SPE & Embedded FP Status & Control */
87	#define SPRN_BBEAR 0x201 /* Branch Buffer Entry Address Register */	91	#define SPRN_BBEAR 0x201 /* Branch Buffer Entry Address Register */
88	#define SPRN_BBTAR 0x202 /* Branch Buffer Target Address Register */	92	#define SPRN_BBTAR 0x202 /* Branch Buffer Target Address Register */


diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S index 913611105c1..8053db02b85 100644 --- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S
@@ -88,6 +88,9 @@ _GLOBAL(__setup_cpu_e5500)
88	bl __e500_dcache_setup	88	bl __e500_dcache_setup
89	#ifdef CONFIG_PPC_BOOK3E_64	89	#ifdef CONFIG_PPC_BOOK3E_64
90	bl .__setup_base_ivors	90	bl .__setup_base_ivors
		91	bl .setup_perfmon_ivor
		92	bl .setup_doorbell_ivors
		93	bl .setup_ehv_ivors
91	#else	94	#else
92	bl __setup_e500mc_ivors	95	bl __setup_e500mc_ivors
93	#endif	96	#endif


diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index cf27a8fa0d2..d24d4400cc7 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -269,8 +269,13 @@ interrupt_base_book3e: /* fake trap */
269	EXCEPTION_STUB(0x1a0, watchdog) /* 0x09f0 */	269	EXCEPTION_STUB(0x1a0, watchdog) /* 0x09f0 */
270	EXCEPTION_STUB(0x1c0, data_tlb_miss)	270	EXCEPTION_STUB(0x1c0, data_tlb_miss)
271	EXCEPTION_STUB(0x1e0, instruction_tlb_miss)	271	EXCEPTION_STUB(0x1e0, instruction_tlb_miss)
		272	EXCEPTION_STUB(0x260, perfmon)
272	EXCEPTION_STUB(0x280, doorbell)	273	EXCEPTION_STUB(0x280, doorbell)
273	EXCEPTION_STUB(0x2a0, doorbell_crit)	274	EXCEPTION_STUB(0x2a0, doorbell_crit)
		275	EXCEPTION_STUB(0x2c0, guest_doorbell)
		276	EXCEPTION_STUB(0x2e0, guest_doorbell_crit)
		277	EXCEPTION_STUB(0x300, hypercall)
		278	EXCEPTION_STUB(0x320, ehpriv)
274		279
275	.globl interrupt_end_book3e	280	.globl interrupt_end_book3e
276	interrupt_end_book3e:	281	interrupt_end_book3e:
@@ -514,6 +519,8 @@ kernel_dbg_exc:
514	bl .DebugException	519	bl .DebugException
515	b .ret_from_except	520	b .ret_from_except
516		521
		522	MASKABLE_EXCEPTION(0x260, perfmon, .performance_monitor_exception, ACK_NONE)
		523
517	/* Doorbell interrupt */	524	/* Doorbell interrupt */
518	MASKABLE_EXCEPTION(0x2070, doorbell, .doorbell_exception, ACK_NONE)	525	MASKABLE_EXCEPTION(0x2070, doorbell, .doorbell_exception, ACK_NONE)
519		526
@@ -528,6 +535,11 @@ kernel_dbg_exc:
528	// b ret_from_crit_except	535	// b ret_from_crit_except
529	b .	536	b .
530		537
		538	MASKABLE_EXCEPTION(0x2c0, guest_doorbell, .unknown_exception, ACK_NONE)
		539	MASKABLE_EXCEPTION(0x2e0, guest_doorbell_crit, .unknown_exception, ACK_NONE)
		540	MASKABLE_EXCEPTION(0x310, hypercall, .unknown_exception, ACK_NONE)
		541	MASKABLE_EXCEPTION(0x320, ehpriv, .unknown_exception, ACK_NONE)
		542
531		543
532	/*	544	/*
533	* An interrupt came in while soft-disabled; clear EE in SRR1,	545	* An interrupt came in while soft-disabled; clear EE in SRR1,
@@ -647,7 +659,12 @@ fast_exception_return:
647	BAD_STACK_TRAMPOLINE(0x000)	659	BAD_STACK_TRAMPOLINE(0x000)
648	BAD_STACK_TRAMPOLINE(0x100)	660	BAD_STACK_TRAMPOLINE(0x100)
649	BAD_STACK_TRAMPOLINE(0x200)	661	BAD_STACK_TRAMPOLINE(0x200)
		662	BAD_STACK_TRAMPOLINE(0x260)
		663	BAD_STACK_TRAMPOLINE(0x2c0)
		664	BAD_STACK_TRAMPOLINE(0x2e0)
650	BAD_STACK_TRAMPOLINE(0x300)	665	BAD_STACK_TRAMPOLINE(0x300)
		666	BAD_STACK_TRAMPOLINE(0x310)
		667	BAD_STACK_TRAMPOLINE(0x320)
651	BAD_STACK_TRAMPOLINE(0x400)	668	BAD_STACK_TRAMPOLINE(0x400)
652	BAD_STACK_TRAMPOLINE(0x500)	669	BAD_STACK_TRAMPOLINE(0x500)
653	BAD_STACK_TRAMPOLINE(0x600)	670	BAD_STACK_TRAMPOLINE(0x600)
@@ -1183,3 +1200,33 @@ _GLOBAL(__setup_base_ivors)
1183	sync	1200	sync
1184		1201
1185	blr	1202	blr
		1203
		1204	_GLOBAL(setup_perfmon_ivor)
		1205	SET_IVOR(35, 0x260) /* Performance Monitor */
		1206	blr
		1207
		1208	_GLOBAL(setup_doorbell_ivors)
		1209	SET_IVOR(36, 0x280) /* Processor Doorbell */
		1210	SET_IVOR(37, 0x2a0) /* Processor Doorbell Crit */
		1211
		1212	/* Check MMUCFG[LPIDSIZE] to determine if we have category E.HV */
		1213	mfspr r10,SPRN_MMUCFG
		1214	rlwinm. r10,r10,0,MMUCFG_LPIDSIZE
		1215	beqlr
		1216
		1217	SET_IVOR(38, 0x2c0) /* Guest Processor Doorbell */
		1218	SET_IVOR(39, 0x2e0) /* Guest Processor Doorbell Crit/MC */
		1219	blr
		1220
		1221	_GLOBAL(setup_ehv_ivors)
		1222	/*
		1223	* We may be running as a guest and lack E.HV even on a chip
		1224	* that normally has it.
		1225	*/
		1226	mfspr r10,SPRN_MMUCFG
		1227	rlwinm. r10,r10,0,MMUCFG_LPIDSIZE
		1228	beqlr
		1229
		1230	SET_IVOR(40, 0x300) /* Embedded Hypervisor System Call */
		1231	SET_IVOR(41, 0x320) /* Embedded Hypervisor Privilege */
		1232	blr

// SPDX-License-Identifier: GPL-2.0-or-later /* * adm1026.c - Part of lm_sensors, Linux kernel modules for hardware * monitoring * Copyright (C) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com> * Copyright (C) 2004 Justin Thiessen <jthiessen@penguincomputing.com> * * Chip details at: * * <http://www.onsemi.com/PowerSolutions/product.do?id=ADM1026> */ #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/hwmon-vid.h> #include <linux/err.h> #include <linux/mutex.h> /* Addresses to scan */ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; static int gpio_input[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_output[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_inverted[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_normal[17] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; module_param_array(gpio_input, int, NULL, 0); MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs"); module_param_array(gpio_output, int, NULL, 0); MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as outputs"); module_param_array(gpio_inverted, int, NULL, 0); MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as inverted"); module_param_array(gpio_normal, int, NULL, 0); MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as normal/non-inverted"); module_param_array(gpio_fan, int, NULL, 0); MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs"); /* Many ADM1026 constants specified below */ /* The ADM1026 registers */ #define ADM1026_REG_CONFIG1 0x00 #define CFG1_MONITOR 0x01 #define CFG1_INT_ENABLE 0x02 #define CFG1_INT_CLEAR 0x04 #define CFG1_AIN8_9 0x08 #define CFG1_THERM_HOT 0x10 #define CFG1_DAC_AFC 0x20 #define CFG1_PWM_AFC 0x40 #define CFG1_RESET 0x80 #define ADM1026_REG_CONFIG2 0x01 /* CONFIG2 controls FAN0/GPIO0 through FAN7/GPIO7 */ #define ADM1026_REG_CONFIG3 0x07 #define CFG3_GPIO16_ENABLE 0x01 #define CFG3_CI_CLEAR 0x02 #define CFG3_VREF_250 0x04 #define CFG3_GPIO16_DIR 0x40 #define CFG3_GPIO16_POL 0x80 #define ADM1026_REG_E2CONFIG 0x13 #define E2CFG_READ 0x01 #define E2CFG_WRITE 0x02 #define E2CFG_ERASE 0x04 #define E2CFG_ROM 0x08 #define E2CFG_CLK_EXT 0x80 /* * There are 10 general analog inputs and 7 dedicated inputs * They are: * 0 - 9 = AIN0 - AIN9 * 10 = Vbat * 11 = 3.3V Standby * 12 = 3.3V Main * 13 = +5V * 14 = Vccp (CPU core voltage) * 15 = +12V * 16 = -12V */ static u16 ADM1026_REG_IN[] = { 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x27, 0x29, 0x26, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f }; static u16 ADM1026_REG_IN_MIN[] = { 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x6d, 0x49, 0x6b, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f }; static u16 ADM1026_REG_IN_MAX[] = { 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x6c, 0x41, 0x6a, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 }; /* * Temperatures are: * 0 - Internal * 1 - External 1 * 2 - External 2 */ static u16 ADM1026_REG_TEMP[] = { 0x1f, 0x28, 0x29 }; static u16 ADM1026_REG_TEMP_MIN[] = { 0x69, 0x48, 0x49 }; static u16 ADM1026_REG_TEMP_MAX[] = { 0x68, 0x40, 0x41 }; static u16 ADM1026_REG_TEMP_TMIN[] = { 0x10, 0x11, 0x12 }; static u16 ADM1026_REG_TEMP_THERM[] = { 0x0d, 0x0e, 0x0f }; static u16 ADM1026_REG_TEMP_OFFSET[] = { 0x1e, 0x6e, 0x6f }; #define ADM1026_REG_FAN(nr) (0x38 + (nr)) #define ADM1026_REG_FAN_MIN(nr) (0x60 + (nr)) #define ADM1026_REG_FAN_DIV_0_3 0x02 #define ADM1026_REG_FAN_DIV_4_7 0x03 #define ADM1026_REG_DAC 0x04 #define ADM1026_REG_PWM 0x05 #define ADM1026_REG_GPIO_CFG_0_3 0x08 #define ADM1026_REG_GPIO_CFG_4_7 0x09 #define ADM1026_REG_GPIO_CFG_8_11 0x0a #define ADM1026_REG_GPIO_CFG_12_15 0x0b /* CFG_16 in REG_CFG3 */ #define ADM1026_REG_GPIO_STATUS_0_7 0x24 #define ADM1026_REG_GPIO_STATUS_8_15 0x25 /* STATUS_16 in REG_STATUS4 */ #define ADM1026_REG_GPIO_MASK_0_7 0x1c #define ADM1026_REG_GPIO_MASK_8_15 0x1d /* MASK_16 in REG_MASK4 */ #define ADM1026_REG_COMPANY 0x16 #define ADM1026_REG_VERSTEP 0x17 /* These are the recognized values for the above regs */ #define ADM1026_COMPANY_ANALOG_DEV 0x41 #define ADM1026_VERSTEP_GENERIC 0x40 #define ADM1026_VERSTEP_ADM1026 0x44 #define ADM1026_REG_MASK1 0x18 #define ADM1026_REG_MASK2 0x19 #define ADM1026_REG_MASK3 0x1a #define ADM1026_REG_MASK4 0x1b #define ADM1026_REG_STATUS1 0x20 #define ADM1026_REG_STATUS2 0x21 #define ADM1026_REG_STATUS3 0x22 #define ADM1026_REG_STATUS4 0x23 #define ADM1026_FAN_ACTIVATION_TEMP_HYST -6 #define ADM1026_FAN_CONTROL_TEMP_RANGE 20 #define ADM1026_PWM_MAX 255 /* * Conversions. Rounding and limit checking is only done on the TO_REG * variants. Note that you should be a bit careful with which arguments * these macros are called: arguments may be evaluated more than once. */ /* * IN are scaled according to built-in resistors. These are the * voltages corresponding to 3/4 of full scale (192 or 0xc0) * NOTE: The -12V input needs an additional factor to account * for the Vref pullup resistor. * NEG12_OFFSET = SCALE * Vref / V-192 - Vref * = 13875 * 2.50 / 1.875 - 2500 * = 16000 * * The values in this table are based on Table II, page 15 of the * datasheet. */ static int adm1026_scaling[] = { /* .001 Volts */ 2250, 2250, 2250, 2250, 2250, 2250, 1875, 1875, 1875, 1875, 3000, 3330, 3330, 4995, 2250, 12000, 13875 }; #define NEG12_OFFSET 16000 #define SCALE(val, from, to) (((val)*(to) + ((from)/2))/(from)) #define INS_TO_REG(n, val) \ SCALE(clamp_val(val, 0, 255 * adm1026_scaling[n] / 192), \ adm1026_scaling[n], 192) #define INS_FROM_REG(n, val) (SCALE(val, 192, adm1026_scaling[n])) /* * FAN speed is measured using 22.5kHz clock and counts for 2 pulses * and we assume a 2 pulse-per-rev fan tach signal * 22500 kHz * 60 (sec/min) * 2 (pulse) / 2 (pulse/rev) == 1350000 */ #define FAN_TO_REG(val, div) ((val) <= 0 ? 0xff : \ clamp_val(1350000 / ((val) * (div)), \ 1, 254)) #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 0xff ? 0 : \ 1350000 / ((val) * (div))) #define DIV_FROM_REG(val) (1 << (val)) #define DIV_TO_REG(val) ((val) >= 8 ? 3 : (val) >= 4 ? 2 : (val) >= 2 ? 1 : 0) /* Temperature is reported in 1 degC increments */ #define TEMP_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \ 1000) #define TEMP_FROM_REG(val) ((val) * 1000) #define OFFSET_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), \ 1000) #define OFFSET_FROM_REG(val) ((val) * 1000) #define PWM_TO_REG(val) (clamp_val(val, 0, 255)) #define PWM_FROM_REG(val) (val) #define PWM_MIN_TO_REG(val) ((val) & 0xf0) #define PWM_MIN_FROM_REG(val) (((val) & 0xf0) + ((val) >> 4)) /* * Analog output is a voltage, and scaled to millivolts. The datasheet * indicates that the DAC could be used to drive the fans, but in our * example board (Arima HDAMA) it isn't connected to the fans at all. */ #define DAC_TO_REG(val) DIV_ROUND_CLOSEST(clamp_val(val, 0, 2500) * 255, \ 2500) #define DAC_FROM_REG(val) (((val) * 2500) / 255) /* * Chip sampling rates * * Some sensors are not updated more frequently than once per second * so it doesn't make sense to read them more often than that. * We cache the results and return the saved data if the driver * is called again before a second has elapsed. * * Also, there is significant configuration data for this chip * So, we keep the config data up to date in the cache * when it is written and only sample it once every 5 *minutes* */ #define ADM1026_DATA_INTERVAL (1 * HZ) #define ADM1026_CONFIG_INTERVAL (5 * 60 * HZ) /* * We allow for multiple chips in a single system. * * For each registered ADM1026, we need to keep state information * at client->data. The adm1026_data structure is dynamically * allocated, when a new client structure is allocated. */ struct pwm_data { u8 pwm; u8 enable; u8 auto_pwm_min; }; struct adm1026_data { struct i2c_client *client; const struct attribute_group *groups[3]; struct mutex update_lock; int valid; /* !=0 if following fields are valid */ unsigned long last_reading; /* In jiffies */ unsigned long last_config; /* In jiffies */ u8 in[17]; /* Register value */ u8 in_max[17]; /* Register value */ u8 in_min[17]; /* Register value */ s8 temp[3]; /* Register value */ s8 temp_min[3]; /* Register value */ s8 temp_max[3]; /* Register value */ s8 temp_tmin[3]; /* Register value */ s8 temp_crit[3]; /* Register value */ s8 temp_offset[3]; /* Register value */ u8 fan[8]; /* Register value */ u8 fan_min[8]; /* Register value */ u8 fan_div[8]; /* Decoded value */ struct pwm_data pwm1; /* Pwm control values */ u8 vrm; /* VRM version */ u8 analog_out; /* Register value (DAC) */ long alarms; /* Register encoding, combined */ long alarm_mask; /* Register encoding, combined */ long gpio; /* Register encoding, combined */ long gpio_mask; /* Register encoding, combined */ u8 gpio_config[17]; /* Decoded value */ u8 config1; /* Register value */ u8 config2; /* Register value */ u8 config3; /* Register value */ }; static int adm1026_read_value(struct i2c_client *client, u8 reg) { int res; if (reg < 0x80) { /* "RAM" locations */ res = i2c_smbus_read_byte_data(client, reg) & 0xff; } else { /* EEPROM, do nothing */ res = 0; } return res; } static int adm1026_write_value(struct i2c_client *client, u8 reg, int value) { int res; if (reg < 0x80) { /* "RAM" locations */ res = i2c_smbus_write_byte_data(client, reg, value); } else { /* EEPROM, do nothing */ res = 0; } return res; } static struct adm1026_data *adm1026_update_device(struct device *dev) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; int i; long value, alarms, gpio; mutex_lock(&data->update_lock); if (!data->valid || time_after(jiffies, data->last_reading + ADM1026_DATA_INTERVAL)) { /* Things that change quickly */ dev_dbg(&client->dev, "Reading sensor values\n"); for (i = 0; i <= 16; ++i) { data->in[i] = adm1026_read_value(client, ADM1026_REG_IN[i]); } for (i = 0; i <= 7; ++i) { data->fan[i] = adm1026_read_value(client, ADM1026_REG_FAN(i)); } for (i = 0; i <= 2; ++i) { /* * NOTE: temp[] is s8 and we assume 2's complement * "conversion" in the assignment */ data->temp[i] = adm1026_read_value(client, ADM1026_REG_TEMP[i]); } data->pwm1.pwm = adm1026_read_value(client, ADM1026_REG_PWM); data->analog_out = adm1026_read_value(client, ADM1026_REG_DAC); /* GPIO16 is MSbit of alarms, move it to gpio */ alarms = adm1026_read_value(client, ADM1026_REG_STATUS4); gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ alarms &= 0x7f; alarms <<= 8; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS3); alarms <<= 8; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS2); alarms <<= 8; alarms |= adm1026_read_value(client, ADM1026_REG_STATUS1); data->alarms = alarms; /* Read the GPIO values */ gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_STATUS_8_15); gpio <<= 8; gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_STATUS_0_7); data->gpio = gpio; data->last_reading = jiffies; } /* last_reading */ if (!data->valid || time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) { /* Things that don't change often */ dev_dbg(&client->dev, "Reading config values\n"); for (i = 0; i <= 16; ++i) { data->in_min[i] = adm1026_read_value(client, ADM1026_REG_IN_MIN[i]); data->in_max[i] = adm1026_read_value(client, ADM1026_REG_IN_MAX[i]); } value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); for (i = 0; i <= 7; ++i) { data->fan_min[i] = adm1026_read_value(client, ADM1026_REG_FAN_MIN(i)); data->fan_div[i] = DIV_FROM_REG(value & 0x03); value >>= 2; } for (i = 0; i <= 2; ++i) { /* * NOTE: temp_xxx[] are s8 and we assume 2's * complement "conversion" in the assignment */ data->temp_min[i] = adm1026_read_value(client, ADM1026_REG_TEMP_MIN[i]); data->temp_max[i] = adm1026_read_value(client, ADM1026_REG_TEMP_MAX[i]); data->temp_tmin[i] = adm1026_read_value(client, ADM1026_REG_TEMP_TMIN[i]); data->temp_crit[i] = adm1026_read_value(client, ADM1026_REG_TEMP_THERM[i]); data->temp_offset[i] = adm1026_read_value(client, ADM1026_REG_TEMP_OFFSET[i]); } /* Read the STATUS/alarm masks */ alarms = adm1026_read_value(client, ADM1026_REG_MASK4); gpio = alarms & 0x80 ? 0x0100 : 0; /* GPIO16 */ alarms = (alarms & 0x7f) << 8; alarms |= adm1026_read_value(client, ADM1026_REG_MASK3); alarms <<= 8; alarms |= adm1026_read_value(client, ADM1026_REG_MASK2); alarms <<= 8; alarms |= adm1026_read_value(client, ADM1026_REG_MASK1); data->alarm_mask = alarms; /* Read the GPIO values */ gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_8_15); gpio <<= 8; gpio |= adm1026_read_value(client, ADM1026_REG_GPIO_MASK_0_7); data->gpio_mask = gpio; /* Read various values from CONFIG1 */ data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); if (data->config1 & CFG1_PWM_AFC) { data->pwm1.enable = 2; data->pwm1.auto_pwm_min = PWM_MIN_FROM_REG(data->pwm1.pwm); } /* Read the GPIO config */ data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); data->gpio_config[16] = (data->config3 >> 6) & 0x03; value = 0; for (i = 0; i <= 15; ++i) { if ((i & 0x03) == 0) { value = adm1026_read_value(client, ADM1026_REG_GPIO_CFG_0_3 + i/4); } data->gpio_config[i] = value & 0x03; value >>= 2; } data->last_config = jiffies; } /* last_config */ data->valid = 1; mutex_unlock(&data->update_lock); return data; } static ssize_t in_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in[nr])); } static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_min[nr])); } static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_min[nr] = INS_TO_REG(nr, val); adm1026_write_value(client, ADM1026_REG_IN_MIN[nr], data->in_min[nr]); mutex_unlock(&data->update_lock); return count; } static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(nr, data->in_max[nr])); } static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_max[nr] = INS_TO_REG(nr, val); adm1026_write_value(client, ADM1026_REG_IN_MAX[nr], data->in_max[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5); static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6); static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7); static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); static SENSOR_DEVICE_ATTR_RO(in8_input, in, 8); static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8); static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8); static SENSOR_DEVICE_ATTR_RO(in9_input, in, 9); static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 9); static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 9); static SENSOR_DEVICE_ATTR_RO(in10_input, in, 10); static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 10); static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 10); static SENSOR_DEVICE_ATTR_RO(in11_input, in, 11); static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 11); static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 11); static SENSOR_DEVICE_ATTR_RO(in12_input, in, 12); static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 12); static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 12); static SENSOR_DEVICE_ATTR_RO(in13_input, in, 13); static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 13); static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 13); static SENSOR_DEVICE_ATTR_RO(in14_input, in, 14); static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 14); static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 14); static SENSOR_DEVICE_ATTR_RO(in15_input, in, 15); static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 15); static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 15); static ssize_t in16_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in[16]) - NEG12_OFFSET); } static ssize_t in16_min_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_min[16]) - NEG12_OFFSET); } static ssize_t in16_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_min[16] = INS_TO_REG(16, clamp_val(val, INT_MIN, INT_MAX - NEG12_OFFSET) + NEG12_OFFSET); adm1026_write_value(client, ADM1026_REG_IN_MIN[16], data->in_min[16]); mutex_unlock(&data->update_lock); return count; } static ssize_t in16_max_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", INS_FROM_REG(16, data->in_max[16]) - NEG12_OFFSET); } static ssize_t in16_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->in_max[16] = INS_TO_REG(16, clamp_val(val, INT_MIN, INT_MAX - NEG12_OFFSET) + NEG12_OFFSET); adm1026_write_value(client, ADM1026_REG_IN_MAX[16], data->in_max[16]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RO(in16_input, in16, 16); static SENSOR_DEVICE_ATTR_RW(in16_min, in16_min, 16); static SENSOR_DEVICE_ATTR_RW(in16_max, in16_max, 16); /* Now add fan read/write functions */ static ssize_t fan_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], data->fan_div[nr])); } static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], data->fan_div[nr])); } static ssize_t fan_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->fan_min[nr] = FAN_TO_REG(val, data->fan_div[nr]); adm1026_write_value(client, ADM1026_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RO(fan1_input, fan, 0); static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0); static SENSOR_DEVICE_ATTR_RO(fan2_input, fan, 1); static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1); static SENSOR_DEVICE_ATTR_RO(fan3_input, fan, 2); static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2); static SENSOR_DEVICE_ATTR_RO(fan4_input, fan, 3); static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3); static SENSOR_DEVICE_ATTR_RO(fan5_input, fan, 4); static SENSOR_DEVICE_ATTR_RW(fan5_min, fan_min, 4); static SENSOR_DEVICE_ATTR_RO(fan6_input, fan, 5); static SENSOR_DEVICE_ATTR_RW(fan6_min, fan_min, 5); static SENSOR_DEVICE_ATTR_RO(fan7_input, fan, 6); static SENSOR_DEVICE_ATTR_RW(fan7_min, fan_min, 6); static SENSOR_DEVICE_ATTR_RO(fan8_input, fan, 7); static SENSOR_DEVICE_ATTR_RW(fan8_min, fan_min, 7); /* Adjust fan_min to account for new fan divisor */ static void fixup_fan_min(struct device *dev, int fan, int old_div) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; int new_min; int new_div = data->fan_div[fan]; /* 0 and 0xff are special. Don't adjust them */ if (data->fan_min[fan] == 0 || data->fan_min[fan] == 0xff) return; new_min = data->fan_min[fan] * old_div / new_div; new_min = clamp_val(new_min, 1, 254); data->fan_min[fan] = new_min; adm1026_write_value(client, ADM1026_REG_FAN_MIN(fan), new_min); } /* Now add fan_div read/write functions */ static ssize_t fan_div_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", data->fan_div[nr]); } static ssize_t fan_div_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int orig_div, new_div; int err; err = kstrtol(buf, 10, &val); if (err) return err; new_div = DIV_TO_REG(val); mutex_lock(&data->update_lock); orig_div = data->fan_div[nr]; data->fan_div[nr] = DIV_FROM_REG(new_div); if (nr < 4) { /* 0 <= nr < 4 */ adm1026_write_value(client, ADM1026_REG_FAN_DIV_0_3, (DIV_TO_REG(data->fan_div[0]) << 0) | (DIV_TO_REG(data->fan_div[1]) << 2) | (DIV_TO_REG(data->fan_div[2]) << 4) | (DIV_TO_REG(data->fan_div[3]) << 6)); } else { /* 3 < nr < 8 */ adm1026_write_value(client, ADM1026_REG_FAN_DIV_4_7, (DIV_TO_REG(data->fan_div[4]) << 0) | (DIV_TO_REG(data->fan_div[5]) << 2) | (DIV_TO_REG(data->fan_div[6]) << 4) | (DIV_TO_REG(data->fan_div[7]) << 6)); } if (data->fan_div[nr] != orig_div) fixup_fan_min(dev, nr, orig_div); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0); static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1); static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2); static SENSOR_DEVICE_ATTR_RW(fan4_div, fan_div, 3); static SENSOR_DEVICE_ATTR_RW(fan5_div, fan_div, 4); static SENSOR_DEVICE_ATTR_RW(fan6_div, fan_div, 5); static SENSOR_DEVICE_ATTR_RW(fan7_div, fan_div, 6); static SENSOR_DEVICE_ATTR_RW(fan8_div, fan_div, 7); /* Temps */ static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); } static ssize_t temp_min_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); } static ssize_t temp_min_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_min[nr] = TEMP_TO_REG(val); adm1026_write_value(client, ADM1026_REG_TEMP_MIN[nr], data->temp_min[nr]); mutex_unlock(&data->update_lock); return count; } static ssize_t temp_max_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); } static ssize_t temp_max_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_max[nr] = TEMP_TO_REG(val); adm1026_write_value(client, ADM1026_REG_TEMP_MAX[nr], data->temp_max[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); static ssize_t temp_offset_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); } static ssize_t temp_offset_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_offset[nr] = TEMP_TO_REG(val); adm1026_write_value(client, ADM1026_REG_TEMP_OFFSET[nr], data->temp_offset[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0); static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1); static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2); static ssize_t temp_auto_point1_temp_hyst_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG( ADM1026_FAN_ACTIVATION_TEMP_HYST + data->temp_tmin[nr])); } static ssize_t temp_auto_point2_temp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr] + ADM1026_FAN_CONTROL_TEMP_RANGE)); } static ssize_t temp_auto_point1_temp_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_tmin[nr])); } static ssize_t temp_auto_point1_temp_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_tmin[nr] = TEMP_TO_REG(val); adm1026_write_value(client, ADM1026_REG_TEMP_TMIN[nr], data->temp_tmin[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RW(temp1_auto_point1_temp, temp_auto_point1_temp, 0); static SENSOR_DEVICE_ATTR_RO(temp1_auto_point1_temp_hyst, temp_auto_point1_temp_hyst, 0); static SENSOR_DEVICE_ATTR_RO(temp1_auto_point2_temp, temp_auto_point2_temp, 0); static SENSOR_DEVICE_ATTR_RW(temp2_auto_point1_temp, temp_auto_point1_temp, 1); static SENSOR_DEVICE_ATTR_RO(temp2_auto_point1_temp_hyst, temp_auto_point1_temp_hyst, 1); static SENSOR_DEVICE_ATTR_RO(temp2_auto_point2_temp, temp_auto_point2_temp, 1); static SENSOR_DEVICE_ATTR_RW(temp3_auto_point1_temp, temp_auto_point1_temp, 2); static SENSOR_DEVICE_ATTR_RO(temp3_auto_point1_temp_hyst, temp_auto_point1_temp_hyst, 2); static SENSOR_DEVICE_ATTR_RO(temp3_auto_point2_temp, temp_auto_point2_temp, 2); static ssize_t show_temp_crit_enable(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", (data->config1 & CFG1_THERM_HOT) >> 4); } static ssize_t set_temp_crit_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; if (val > 1) return -EINVAL; mutex_lock(&data->update_lock); data->config1 = (data->config1 & ~CFG1_THERM_HOT) | (val << 4); adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR(temp1_crit_enable, 0644, show_temp_crit_enable, set_temp_crit_enable); static DEVICE_ATTR(temp2_crit_enable, 0644, show_temp_crit_enable, set_temp_crit_enable); static DEVICE_ATTR(temp3_crit_enable, 0644, show_temp_crit_enable, set_temp_crit_enable); static ssize_t temp_crit_show(struct device *dev, struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr])); } static ssize_t temp_crit_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_crit[nr] = TEMP_TO_REG(val); adm1026_write_value(client, ADM1026_REG_TEMP_THERM[nr], data->temp_crit[nr]); mutex_unlock(&data->update_lock); return count; } static SENSOR_DEVICE_ATTR_RW(temp1_crit, temp_crit, 0); static SENSOR_DEVICE_ATTR_RW(temp2_crit, temp_crit, 1); static SENSOR_DEVICE_ATTR_RW(temp3_crit, temp_crit, 2); static ssize_t analog_out_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", DAC_FROM_REG(data->analog_out)); } static ssize_t analog_out_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->analog_out = DAC_TO_REG(val); adm1026_write_value(client, ADM1026_REG_DAC, data->analog_out); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR_RW(analog_out); static ssize_t cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); int vid = (data->gpio >> 11) & 0x1f; dev_dbg(dev, "Setting VID from GPIO11-15.\n"); return sprintf(buf, "%d\n", vid_from_reg(vid, data->vrm)); } static DEVICE_ATTR_RO(cpu0_vid); static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = dev_get_drvdata(dev); return sprintf(buf, "%d\n", data->vrm); } static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; if (val > 255) return -EINVAL; data->vrm = val; return count; } static DEVICE_ATTR_RW(vrm); static ssize_t alarms_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%ld\n", data->alarms); } static DEVICE_ATTR_RO(alarms); static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); int bitnr = to_sensor_dev_attr(attr)->index; return sprintf(buf, "%ld\n", (data->alarms >> bitnr) & 1); } static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0); static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 1); static SENSOR_DEVICE_ATTR_RO(in9_alarm, alarm, 1); static SENSOR_DEVICE_ATTR_RO(in11_alarm, alarm, 2); static SENSOR_DEVICE_ATTR_RO(in12_alarm, alarm, 3); static SENSOR_DEVICE_ATTR_RO(in13_alarm, alarm, 4); static SENSOR_DEVICE_ATTR_RO(in14_alarm, alarm, 5); static SENSOR_DEVICE_ATTR_RO(in15_alarm, alarm, 6); static SENSOR_DEVICE_ATTR_RO(in16_alarm, alarm, 7); static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 8); static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 9); static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 10); static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 11); static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 12); static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 13); static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 14); static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 15); static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 16); static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 17); static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 18); static SENSOR_DEVICE_ATTR_RO(fan4_alarm, alarm, 19); static SENSOR_DEVICE_ATTR_RO(fan5_alarm, alarm, 20); static SENSOR_DEVICE_ATTR_RO(fan6_alarm, alarm, 21); static SENSOR_DEVICE_ATTR_RO(fan7_alarm, alarm, 22); static SENSOR_DEVICE_ATTR_RO(fan8_alarm, alarm, 23); static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 24); static SENSOR_DEVICE_ATTR_RO(in10_alarm, alarm, 25); static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 26); static ssize_t alarm_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%ld\n", data->alarm_mask); } static ssize_t alarm_mask_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long mask; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->alarm_mask = val & 0x7fffffff; mask = data->alarm_mask | (data->gpio_mask & 0x10000 ? 0x80000000 : 0); adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); mask >>= 8; adm1026_write_value(client, ADM1026_REG_MASK2, mask & 0xff); mask >>= 8; adm1026_write_value(client, ADM1026_REG_MASK3, mask & 0xff); mask >>= 8; adm1026_write_value(client, ADM1026_REG_MASK4, mask & 0xff); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR_RW(alarm_mask); static ssize_t gpio_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%ld\n", data->gpio); } static ssize_t gpio_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long gpio; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->gpio = val & 0x1ffff; gpio = data->gpio; adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_0_7, gpio & 0xff); gpio >>= 8; adm1026_write_value(client, ADM1026_REG_GPIO_STATUS_8_15, gpio & 0xff); gpio = ((gpio >> 1) & 0x80) | (data->alarms >> 24 & 0x7f); adm1026_write_value(client, ADM1026_REG_STATUS4, gpio & 0xff); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR_RW(gpio); static ssize_t gpio_mask_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%ld\n", data->gpio_mask); } static ssize_t gpio_mask_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long mask; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->gpio_mask = val & 0x1ffff; mask = data->gpio_mask; adm1026_write_value(client, ADM1026_REG_GPIO_MASK_0_7, mask & 0xff); mask >>= 8; adm1026_write_value(client, ADM1026_REG_GPIO_MASK_8_15, mask & 0xff); mask = ((mask >> 1) & 0x80) | (data->alarm_mask >> 24 & 0x7f); adm1026_write_value(client, ADM1026_REG_MASK1, mask & 0xff); mutex_unlock(&data->update_lock); return count; } static DEVICE_ATTR_RW(gpio_mask); static ssize_t pwm1_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm1.pwm)); } static ssize_t pwm1_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; if (data->pwm1.enable == 1) { long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->pwm1.pwm = PWM_TO_REG(val); adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); mutex_unlock(&data->update_lock); } return count; } static ssize_t temp1_auto_point1_pwm_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", data->pwm1.auto_pwm_min); } static ssize_t temp1_auto_point1_pwm_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->pwm1.auto_pwm_min = clamp_val(val, 0, 255); if (data->pwm1.enable == 2) { /* apply immediately */ data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); } mutex_unlock(&data->update_lock); return count; } static ssize_t temp1_auto_point2_pwm_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%d\n", ADM1026_PWM_MAX); } static ssize_t pwm1_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { struct adm1026_data *data = adm1026_update_device(dev); return sprintf(buf, "%d\n", data->pwm1.enable); } static ssize_t pwm1_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct adm1026_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; int old_enable; unsigned long val; int err; err = kstrtoul(buf, 10, &val); if (err) return err; if (val >= 3) return -EINVAL; mutex_lock(&data->update_lock); old_enable = data->pwm1.enable; data->pwm1.enable = val; data->config1 = (data->config1 & ~CFG1_PWM_AFC) | ((val == 2) ? CFG1_PWM_AFC : 0); adm1026_write_value(client, ADM1026_REG_CONFIG1, data->config1); if (val == 2) { /* apply pwm1_auto_pwm_min to pwm1 */ data->pwm1.pwm = PWM_TO_REG((data->pwm1.pwm & 0x0f) | PWM_MIN_TO_REG(data->pwm1.auto_pwm_min)); adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); } else if (!((old_enable == 1) && (val == 1))) { /* set pwm to safe value */ data->pwm1.pwm = 255; adm1026_write_value(client, ADM1026_REG_PWM, data->pwm1.pwm); } mutex_unlock(&data->update_lock); return count; } /* enable PWM fan control */ static DEVICE_ATTR_RW(pwm1); static DEVICE_ATTR(pwm2, 0644, pwm1_show, pwm1_store); static DEVICE_ATTR(pwm3, 0644, pwm1_show, pwm1_store); static DEVICE_ATTR_RW(pwm1_enable); static DEVICE_ATTR(pwm2_enable, 0644, pwm1_enable_show, pwm1_enable_store); static DEVICE_ATTR(pwm3_enable, 0644, pwm1_enable_show, pwm1_enable_store); static DEVICE_ATTR_RW(temp1_auto_point1_pwm); static DEVICE_ATTR(temp2_auto_point1_pwm, 0644, temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store); static DEVICE_ATTR(temp3_auto_point1_pwm, 0644, temp1_auto_point1_pwm_show, temp1_auto_point1_pwm_store); static DEVICE_ATTR_RO(temp1_auto_point2_pwm); static DEVICE_ATTR(temp2_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show, NULL); static DEVICE_ATTR(temp3_auto_point2_pwm, 0444, temp1_auto_point2_pwm_show, NULL); static struct attribute *adm1026_attributes[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_alarm.dev_attr.attr, &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in1_max.dev_attr.attr, &sensor_dev_attr_in1_min.dev_attr.attr, &sensor_dev_attr_in1_alarm.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, &sensor_dev_attr_in2_max.dev_attr.attr, &sensor_dev_attr_in2_min.dev_attr.attr, &sensor_dev_attr_in2_alarm.dev_attr.attr, &sensor_dev_attr_in3_input.dev_attr.attr, &sensor_dev_attr_in3_max.dev_attr.attr, &sensor_dev_attr_in3_min.dev_attr.attr, &sensor_dev_attr_in3_alarm.dev_attr.attr, &sensor_dev_attr_in4_input.dev_attr.attr, &sensor_dev_attr_in4_max.dev_attr.attr, &sensor_dev_attr_in4_min.dev_attr.attr, &sensor_dev_attr_in4_alarm.dev_attr.attr, &sensor_dev_attr_in5_input.dev_attr.attr, &sensor_dev_attr_in5_max.dev_attr.attr, &sensor_dev_attr_in5_min.dev_attr.attr, &sensor_dev_attr_in5_alarm.dev_attr.attr, &sensor_dev_attr_in6_input.dev_attr.attr, &sensor_dev_attr_in6_max.dev_attr.attr, &sensor_dev_attr_in6_min.dev_attr.attr, &sensor_dev_attr_in6_alarm.dev_attr.attr, &sensor_dev_attr_in7_input.dev_attr.attr, &sensor_dev_attr_in7_max.dev_attr.attr, &sensor_dev_attr_in7_min.dev_attr.attr, &sensor_dev_attr_in7_alarm.dev_attr.attr, &sensor_dev_attr_in10_input.dev_attr.attr, &sensor_dev_attr_in10_max.dev_attr.attr, &sensor_dev_attr_in10_min.dev_attr.attr, &sensor_dev_attr_in10_alarm.dev_attr.attr, &sensor_dev_attr_in11_input.dev_attr.attr, &sensor_dev_attr_in11_max.dev_attr.attr, &sensor_dev_attr_in11_min.dev_attr.attr, &sensor_dev_attr_in11_alarm.dev_attr.attr, &sensor_dev_attr_in12_input.dev_attr.attr, &sensor_dev_attr_in12_max.dev_attr.attr, &sensor_dev_attr_in12_min.dev_attr.attr, &sensor_dev_attr_in12_alarm.dev_attr.attr, &sensor_dev_attr_in13_input.dev_attr.attr, &sensor_dev_attr_in13_max.dev_attr.attr, &sensor_dev_attr_in13_min.dev_attr.attr, &sensor_dev_attr_in13_alarm.dev_attr.attr, &sensor_dev_attr_in14_input.dev_attr.attr, &sensor_dev_attr_in14_max.dev_attr.attr, &sensor_dev_attr_in14_min.dev_attr.attr, &sensor_dev_attr_in14_alarm.dev_attr.attr, &sensor_dev_attr_in15_input.dev_attr.attr, &sensor_dev_attr_in15_max.dev_attr.attr, &sensor_dev_attr_in15_min.dev_attr.attr, &sensor_dev_attr_in15_alarm.dev_attr.attr, &sensor_dev_attr_in16_input.dev_attr.attr, &sensor_dev_attr_in16_max.dev_attr.attr, &sensor_dev_attr_in16_min.dev_attr.attr, &sensor_dev_attr_in16_alarm.dev_attr.attr, &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_div.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, &sensor_dev_attr_fan1_alarm.dev_attr.attr, &sensor_dev_attr_fan2_input.dev_attr.attr, &sensor_dev_attr_fan2_div.dev_attr.attr, &sensor_dev_attr_fan2_min.dev_attr.attr, &sensor_dev_attr_fan2_alarm.dev_attr.attr, &sensor_dev_attr_fan3_input.dev_attr.attr, &sensor_dev_attr_fan3_div.dev_attr.attr, &sensor_dev_attr_fan3_min.dev_attr.attr, &sensor_dev_attr_fan3_alarm.dev_attr.attr, &sensor_dev_attr_fan4_input.dev_attr.attr, &sensor_dev_attr_fan4_div.dev_attr.attr, &sensor_dev_attr_fan4_min.dev_attr.attr, &sensor_dev_attr_fan4_alarm.dev_attr.attr, &sensor_dev_attr_fan5_input.dev_attr.attr, &sensor_dev_attr_fan5_div.dev_attr.attr, &sensor_dev_attr_fan5_min.dev_attr.attr, &sensor_dev_attr_fan5_alarm.dev_attr.attr, &sensor_dev_attr_fan6_input.dev_attr.attr, &sensor_dev_attr_fan6_div.dev_attr.attr, &sensor_dev_attr_fan6_min.dev_attr.attr, &sensor_dev_attr_fan6_alarm.dev_attr.attr, &sensor_dev_attr_fan7_input.dev_attr.attr, &sensor_dev_attr_fan7_div.dev_attr.attr, &sensor_dev_attr_fan7_min.dev_attr.attr, &sensor_dev_attr_fan7_alarm.dev_attr.attr, &sensor_dev_attr_fan8_input.dev_attr.attr, &sensor_dev_attr_fan8_div.dev_attr.attr, &sensor_dev_attr_fan8_min.dev_attr.attr, &sensor_dev_attr_fan8_alarm.dev_attr.attr, &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_max.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, &sensor_dev_attr_temp1_alarm.dev_attr.attr, &sensor_dev_attr_temp2_input.dev_attr.attr, &sensor_dev_attr_temp2_max.dev_attr.attr, &sensor_dev_attr_temp2_min.dev_attr.attr, &sensor_dev_attr_temp2_alarm.dev_attr.attr, &sensor_dev_attr_temp1_offset.dev_attr.attr, &sensor_dev_attr_temp2_offset.dev_attr.attr, &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, &sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_temp2_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr, &sensor_dev_attr_temp2_crit.dev_attr.attr, &dev_attr_temp1_crit_enable.attr, &dev_attr_temp2_crit_enable.attr, &dev_attr_cpu0_vid.attr, &dev_attr_vrm.attr, &dev_attr_alarms.attr, &dev_attr_alarm_mask.attr, &dev_attr_gpio.attr, &dev_attr_gpio_mask.attr, &dev_attr_pwm1.attr, &dev_attr_pwm2.attr, &dev_attr_pwm3.attr, &dev_attr_pwm1_enable.attr, &dev_attr_pwm2_enable.attr, &dev_attr_pwm3_enable.attr, &dev_attr_temp1_auto_point1_pwm.attr, &dev_attr_temp2_auto_point1_pwm.attr, &dev_attr_temp1_auto_point2_pwm.attr, &dev_attr_temp2_auto_point2_pwm.attr, &dev_attr_analog_out.attr, NULL }; static const struct attribute_group adm1026_group = { .attrs = adm1026_attributes, }; static struct attribute *adm1026_attributes_temp3[] = { &sensor_dev_attr_temp3_input.dev_attr.attr, &sensor_dev_attr_temp3_max.dev_attr.attr, &sensor_dev_attr_temp3_min.dev_attr.attr, &sensor_dev_attr_temp3_alarm.dev_attr.attr, &sensor_dev_attr_temp3_offset.dev_attr.attr, &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, &sensor_dev_attr_temp3_auto_point1_temp_hyst.dev_attr.attr, &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, &sensor_dev_attr_temp3_crit.dev_attr.attr, &dev_attr_temp3_crit_enable.attr, &dev_attr_temp3_auto_point1_pwm.attr, &dev_attr_temp3_auto_point2_pwm.attr, NULL }; static const struct attribute_group adm1026_group_temp3 = { .attrs = adm1026_attributes_temp3, }; static struct attribute *adm1026_attributes_in8_9[] = { &sensor_dev_attr_in8_input.dev_attr.attr, &sensor_dev_attr_in8_max.dev_attr.attr, &sensor_dev_attr_in8_min.dev_attr.attr, &sensor_dev_attr_in8_alarm.dev_attr.attr, &sensor_dev_attr_in9_input.dev_attr.attr, &sensor_dev_attr_in9_max.dev_attr.attr, &sensor_dev_attr_in9_min.dev_attr.attr, &sensor_dev_attr_in9_alarm.dev_attr.attr, NULL }; static const struct attribute_group adm1026_group_in8_9 = { .attrs = adm1026_attributes_in8_9, }; /* Return 0 if detection is successful, -ENODEV otherwise */ static int adm1026_detect(struct i2c_client *client, struct i2c_board_info *info) { struct i2c_adapter *adapter = client->adapter; int address = client->addr; int company, verstep; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { /* We need to be able to do byte I/O */ return -ENODEV; } /* Now, we do the remaining detection. */ company = adm1026_read_value(client, ADM1026_REG_COMPANY); verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", i2c_adapter_id(client->adapter), client->addr, company, verstep); /* Determine the chip type. */ dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x...\n", i2c_adapter_id(adapter), address); if (company == ADM1026_COMPANY_ANALOG_DEV && verstep == ADM1026_VERSTEP_ADM1026) { /* Analog Devices ADM1026 */ } else if (company == ADM1026_COMPANY_ANALOG_DEV && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { dev_err(&adapter->dev, "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n", verstep); } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { dev_err(&adapter->dev, "Found version/stepping 0x%02x. Assuming generic ADM1026.\n", verstep); } else { dev_dbg(&adapter->dev, "Autodetection failed\n"); /* Not an ADM1026... */ return -ENODEV; } strlcpy(info->type, "adm1026", I2C_NAME_SIZE); return 0; } static void adm1026_print_gpio(struct i2c_client *client) { struct adm1026_data *data = i2c_get_clientdata(client); int i; dev_dbg(&client->dev, "GPIO config is:\n"); for (i = 0; i <= 7; ++i) { if (data->config2 & (1 << i)) { dev_dbg(&client->dev, "\t%sGP%s%d\n", data->gpio_config[i] & 0x02 ? "" : "!", data->gpio_config[i] & 0x01 ? "OUT" : "IN", i); } else { dev_dbg(&client->dev, "\tFAN%d\n", i); } } for (i = 8; i <= 15; ++i) { dev_dbg(&client->dev, "\t%sGP%s%d\n", data->gpio_config[i] & 0x02 ? "" : "!", data->gpio_config[i] & 0x01 ? "OUT" : "IN", i); } if (data->config3 & CFG3_GPIO16_ENABLE) { dev_dbg(&client->dev, "\t%sGP%s16\n", data->gpio_config[16] & 0x02 ? "" : "!", data->gpio_config[16] & 0x01 ? "OUT" : "IN"); } else { /* GPIO16 is THERM */ dev_dbg(&client->dev, "\tTHERM\n"); } } static void adm1026_fixup_gpio(struct i2c_client *client) { struct adm1026_data *data = i2c_get_clientdata(client); int i; int value; /* Make the changes requested. */ /* * We may need to unlock/stop monitoring or soft-reset the * chip before we can make changes. This hasn't been * tested much. FIXME */ /* Make outputs */ for (i = 0; i <= 16; ++i) { if (gpio_output[i] >= 0 && gpio_output[i] <= 16) data->gpio_config[gpio_output[i]] |= 0x01; /* if GPIO0-7 is output, it isn't a FAN tach */ if (gpio_output[i] >= 0 && gpio_output[i] <= 7) data->config2 |= 1 << gpio_output[i]; } /* Input overrides output */ for (i = 0; i <= 16; ++i) { if (gpio_input[i] >= 0 && gpio_input[i] <= 16) data->gpio_config[gpio_input[i]] &= ~0x01; /* if GPIO0-7 is input, it isn't a FAN tach */ if (gpio_input[i] >= 0 && gpio_input[i] <= 7) data->config2 |= 1 << gpio_input[i]; } /* Inverted */ for (i = 0; i <= 16; ++i) { if (gpio_inverted[i] >= 0 && gpio_inverted[i] <= 16) data->gpio_config[gpio_inverted[i]] &= ~0x02; } /* Normal overrides inverted */ for (i = 0; i <= 16; ++i) { if (gpio_normal[i] >= 0 && gpio_normal[i] <= 16) data->gpio_config[gpio_normal[i]] |= 0x02; } /* Fan overrides input and output */ for (i = 0; i <= 7; ++i) { if (gpio_fan[i] >= 0 && gpio_fan[i] <= 7) data->config2 &= ~(1 << gpio_fan[i]); } /* Write new configs to registers */ adm1026_write_value(client, ADM1026_REG_CONFIG2, data->config2); data->config3 = (data->config3 & 0x3f) | ((data->gpio_config[16] & 0x03) << 6); adm1026_write_value(client, ADM1026_REG_CONFIG3, data->config3); for (i = 15, value = 0; i >= 0; --i) { value <<= 2; value |= data->gpio_config[i] & 0x03; if ((i & 0x03) == 0) { adm1026_write_value(client, ADM1026_REG_GPIO_CFG_0_3 + i/4, value); value = 0; } } /* Print the new config */ adm1026_print_gpio(client); } static void adm1026_init_client(struct i2c_client *client) { int value, i; struct adm1026_data *data = i2c_get_clientdata(client); dev_dbg(&client->dev, "Initializing device\n"); /* Read chip config */ data->config1 = adm1026_read_value(client, ADM1026_REG_CONFIG1); data->config2 = adm1026_read_value(client, ADM1026_REG_CONFIG2); data->config3 = adm1026_read_value(client, ADM1026_REG_CONFIG3); /* Inform user of chip config */ dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", data->config1); if ((data->config1 & CFG1_MONITOR) == 0) { dev_dbg(&client->dev, "Monitoring not currently enabled.\n"); } if (data->config1 & CFG1_INT_ENABLE) { dev_dbg(&client->dev, "SMBALERT interrupts are enabled.\n"); } if (data->config1 & CFG1_AIN8_9) { dev_dbg(&client->dev, "in8 and in9 enabled. temp3 disabled.\n"); } else { dev_dbg(&client->dev, "temp3 enabled. in8 and in9 disabled.\n"); } if (data->config1 & CFG1_THERM_HOT) { dev_dbg(&client->dev, "Automatic THERM, PWM, and temp limits enabled.\n"); } if (data->config3 & CFG3_GPIO16_ENABLE) { dev_dbg(&client->dev, "GPIO16 enabled. THERM pin disabled.\n"); } else { dev_dbg(&client->dev, "THERM pin enabled. GPIO16 disabled.\n"); } if (data->config3 & CFG3_VREF_250) dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); else dev_dbg(&client->dev, "Vref is 1.82 Volts.\n"); /* Read and pick apart the existing GPIO configuration */ value = 0; for (i = 0; i <= 15; ++i) { if ((i & 0x03) == 0) { value = adm1026_read_value(client, ADM1026_REG_GPIO_CFG_0_3 + i / 4); } data->gpio_config[i] = value & 0x03; value >>= 2; } data->gpio_config[16] = (data->config3 >> 6) & 0x03; /* ... and then print it */ adm1026_print_gpio(client); /* * If the user asks us to reprogram the GPIO config, then * do it now. */ if (gpio_input[0] != -1 || gpio_output[0] != -1 || gpio_inverted[0] != -1 || gpio_normal[0] != -1 || gpio_fan[0] != -1) { adm1026_fixup_gpio(client); } /* * WE INTENTIONALLY make no changes to the limits, * offsets, pwms, fans and zones. If they were * configured, we don't want to mess with them. * If they weren't, the default is 100% PWM, no * control and will suffice until 'sensors -s' * can be run by the user. We DO set the default * value for pwm1.auto_pwm_min to its maximum * so that enabling automatic pwm fan control * without first setting a value for pwm1.auto_pwm_min * will not result in potentially dangerous fan speed decrease. */ data->pwm1.auto_pwm_min = 255; /* Start monitoring */ value = adm1026_read_value(client, ADM1026_REG_CONFIG1); /* Set MONITOR, clear interrupt acknowledge and s/w reset */ value = (value | CFG1_MONITOR) & (~CFG1_INT_CLEAR & ~CFG1_RESET); dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value); data->config1 = value; adm1026_write_value(client, ADM1026_REG_CONFIG1, value); /* initialize fan_div[] to hardware defaults */ value = adm1026_read_value(client, ADM1026_REG_FAN_DIV_0_3) | (adm1026_read_value(client, ADM1026_REG_FAN_DIV_4_7) << 8); for (i = 0; i <= 7; ++i) { data->fan_div[i] = DIV_FROM_REG(value & 0x03); value >>= 2; } } static int adm1026_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device *hwmon_dev; struct adm1026_data *data; data = devm_kzalloc(dev, sizeof(struct adm1026_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); data->client = client; mutex_init(&data->update_lock); /* Set the VRM version */ data->vrm = vid_which_vrm(); /* Initialize the ADM1026 chip */ adm1026_init_client(client); /* sysfs hooks */ data->groups[0] = &adm1026_group; if (data->config1 & CFG1_AIN8_9) data->groups[1] = &adm1026_group_in8_9; else data->groups[1] = &adm1026_group_temp3; hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, data, data->groups); return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm1026_id[] = { { "adm1026", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, adm1026_id); static struct i2c_driver adm1026_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "adm1026", }, .probe = adm1026_probe, .id_table = adm1026_id, .detect = adm1026_detect, .address_list = normal_i2c, }; module_i2c_driver(adm1026_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, " "Justin Thiessen <jthiessen@penguincomputing.com>"); MODULE_DESCRIPTION("ADM1026 driver");


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