| diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig |
| index e13c902..38aff0c 100644 |
| --- a/drivers/hwmon/Kconfig |
| +++ b/drivers/hwmon/Kconfig |
| @@ -1167,6 +1167,13 @@ config SENSORS_NCT7904 |
| This driver can also be built as a module. If so, the module |
| will be called nct7904. |
| |
| +config SENSORS_OCC |
| + tristate "OCC sensor driver for IBM Power CPU" |
| + depends on I2C |
| + help |
| + If you say yes here you get support for driver to read sensors in |
| + IBM Power CPU On-Chip-Controller. module will be called occ. |
| + |
| config SENSORS_PCF8591 |
| tristate "Philips PCF8591 ADC/DAC" |
| depends on I2C |
| diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile |
| index 9e0f3dd..53dc3b3 100644 |
| --- a/drivers/hwmon/Makefile |
| +++ b/drivers/hwmon/Makefile |
| @@ -123,6 +123,7 @@ obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o |
| obj-$(CONFIG_SENSORS_NCT7802) += nct7802.o |
| obj-$(CONFIG_SENSORS_NCT7904) += nct7904.o |
| obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o |
| +obj-$(CONFIG_SENSORS_OCC) += occ.o |
| obj-$(CONFIG_SENSORS_PC87360) += pc87360.o |
| obj-$(CONFIG_SENSORS_PC87427) += pc87427.o |
| obj-$(CONFIG_SENSORS_PCF8591) += pcf8591.o |
| diff --git a/drivers/hwmon/occ.c b/drivers/hwmon/occ.c |
| new file mode 100644 |
| index 0000000..f265ff3 |
| --- /dev/null |
| +++ b/drivers/hwmon/occ.c |
| @@ -0,0 +1,1529 @@ |
| +/* |
| + * Open BMC OCC HWMON driver - read Power8 OCC (On Chip Controller) sensor data via i2c. |
| + * |
| + * Copyright (c) 2015 IBM (Alvin Wang, Li Yi) |
| + * |
| + * This program is free software; you can redistribute it and/or modify |
| + * it under the terms of the GNU General Public License as published by |
| + * the Free Software Foundation; either version 2 of the License, or |
| + * (at your option) any later version. |
| + * |
| + * This program is distributed in the hope that it will be useful, |
| + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| + * GNU General Public License for more details. |
| + * |
| + * You should have received a copy of the GNU General Public License |
| + * along with this program; if not, write to the Free Software |
| + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| + */ |
| + |
| +#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/err.h> |
| +#include <linux/mutex.h> |
| +#include <linux/of.h> |
| +#include <linux/delay.h> |
| + |
| +//#define DEBUG 1 |
| + |
| +/* ------------------------------------------------------------*/ |
| +/* OCC sensor data format */ |
| +typedef struct { |
| + uint16_t sensor_id; |
| + uint16_t value; |
| +} occ_sensor; |
| + |
| +typedef struct { |
| + uint16_t sensor_id; |
| + uint32_t update_tag; |
| + uint32_t accumulator; |
| + uint16_t value; |
| +} powr_sensor; |
| + |
| +typedef struct { |
| + uint16_t curr_powercap; |
| + uint16_t curr_powerreading; |
| + uint16_t norm_powercap; |
| + uint16_t max_powercap; |
| + uint16_t min_powercap; |
| + uint16_t user_powerlimit; |
| +} caps_sensor; |
| + |
| +typedef struct { |
| + char sensor_type[5]; |
| + uint8_t reserved0; |
| + uint8_t sensor_format; |
| + uint8_t sensor_length; |
| + uint8_t num_of_sensors; |
| + occ_sensor *sensor; |
| + powr_sensor *powr; |
| + caps_sensor *caps; |
| +} sensor_data_block; |
| + |
| +typedef struct { |
| + uint8_t status; |
| + uint8_t ext_status; |
| + uint8_t occs_present; |
| + uint8_t config; |
| + uint8_t occ_state; |
| + uint8_t reserved0; |
| + uint8_t reserved1; |
| + uint8_t error_log_id; |
| + uint32_t error_log_addr_start; |
| + uint16_t error_log_length; |
| + uint8_t reserved2; |
| + uint8_t reserved3; |
| + char occ_code_level[17]; |
| + char sensor_eye_catcher[7]; |
| + uint8_t num_of_sensor_blocks; |
| + uint8_t sensor_data_version; |
| + sensor_data_block* blocks; |
| +} occ_poll_data; |
| + |
| +typedef struct { |
| + uint8_t sequence_num; |
| + uint8_t cmd_type; |
| + uint8_t rtn_status; |
| + uint16_t data_length; |
| + occ_poll_data data; |
| + uint16_t chk_sum; |
| + int temp_block_id; |
| + int freq_block_id; |
| + int power_block_id; |
| + int caps_block_id; |
| +} occ_response_t; |
| + |
| +//static occ_response_t occ_resp; |
| + |
| +/* Each client has this additional data */ |
| +struct occ_drv_data { |
| + struct i2c_client *client; |
| + struct device *hwmon_dev; |
| + struct mutex update_lock; |
| + char valid; /* !=0 if sensor data are valid */ |
| + unsigned long last_updated; /* In jiffies */ |
| + unsigned long sample_time; /* Mininum timer interval for sampling In jiffies */ |
| + occ_response_t occ_resp; |
| +}; |
| + |
| +/*-----------------------------------------------------------------------*/ |
| +/* i2c read and write occ sensors */ |
| + |
| +#define OCC_DATA_MAX 4096 /* 4KB at most */ |
| +#define I2C_STATUS_REG 0x000d0001 |
| +#define I2C_ERROR_REG 0x000d0002 |
| +#define I2C_READ_ERROR 1 |
| +#define I2C_WRITE_ERROR 2 |
| +#define I2C_DATABUFFER_SIZE_ERROR 3 |
| + |
| +/* |
| +#define SCOM_OCC_SRAM_WOX 0x0006B013 |
| +#define SCOM_OCC_SRAM_WAND 0x0006B012 |
| +#define SCOM_OCC_SRAM_ADDR 0x0006B010 |
| +#define SCOM_OCC_SRAM_DATA 0x0006B015 |
| +*/ |
| + |
| +// To generate attn to OCC |
| +#define ATTN_DATA 0x0006B035 |
| + |
| +// For BMC to read/write SRAM |
| +#define OCB_ADDRESS 0x0006B070 |
| +#define OCB_DATA 0x0006B075 |
| +#define OCB_STATUS_CONTROL_AND 0x0006B072 |
| +#define OCB_STATUS_CONTROL_OR 0x0006B073 |
| + |
| +#define OCC_COMMAND_ADDR 0xFFFF6000 |
| +#define OCC_RESPONSE_ADDR 0xFFFF7000 |
| + |
| +static int deinit_occ_resp_buf(occ_response_t *p) |
| +{ |
| + int b; |
| + |
| + if (p == NULL) |
| + return 0; |
| + |
| + if (p->data.blocks == NULL) |
| + return 0; |
| + |
| + for(b = 0; b < p->data.num_of_sensor_blocks; b++) { |
| + if (!p->data.blocks[b].sensor) |
| + kfree(p->data.blocks[b].sensor); |
| + if (!p->data.blocks[b].powr) |
| + kfree(p->data.blocks[b].powr); |
| + if (!p->data.blocks[b].caps) |
| + kfree(p->data.blocks[b].caps); |
| + } |
| + |
| + kfree(p->data.blocks); |
| + |
| + memset(p, 0, sizeof(*p)); |
| + |
| + |
| + return 0; |
| +} |
| + |
| +static ssize_t occ_i2c_read(struct i2c_client *client, char *buf, size_t count) |
| +{ |
| + int ret = 0; |
| + |
| + if (count > 8192) |
| + count = 8192; |
| + |
| + //printk("i2c_read: reading %zu bytes @0x%x.\n", count, client->addr); |
| + ret = i2c_master_recv(client, buf, count); |
| + return ret; |
| +} |
| + |
| +static ssize_t occ_i2c_write(struct i2c_client *client, const char *buf, size_t count) |
| +{ |
| + int ret = 0; |
| + |
| + if (count > 8192) |
| + count = 8192; |
| + |
| + //printk("i2c_write: writing %zu bytes @0x%x.\n", count, client->addr); |
| + ret = i2c_master_send(client, buf, count); |
| + return ret; |
| +} |
| + |
| +/* read two 4-byte value */ |
| +static int occ_getscom(struct i2c_client *client, uint32_t address, uint32_t *value0, uint32_t *value1) |
| +{ |
| + uint32_t ret = 0; |
| + char buf[8]; |
| + const char* address_buf = (const char*)&address; |
| + |
| + //P8 i2c slave requires address to be shifted by 1 |
| + address = address << 1; |
| + |
| + ret = occ_i2c_write(client, address_buf, sizeof(address)); |
| + /* FIXME: ast i2c driver does not read corret value */ |
| + //if (ret != sizeof(address)) |
| + // return -I2C_WRITE_ERROR; |
| + |
| + ret = occ_i2c_read(client, buf, sizeof(buf)); |
| + //if (ret != sizeof(buf)) |
| + // return -I2C_READ_ERROR; |
| + |
| + memcpy(value1, &buf[0], sizeof(*value1)); |
| + memcpy(value0, &buf[4], sizeof(*value0)); |
| + |
| + return 0; |
| +} |
| + |
| +/* read 8-byte value and put into data[offset] */ |
| +static int occ_getscomb(struct i2c_client *client, uint32_t address, char* data, int offset) |
| +{ |
| + uint32_t ret = 0; |
| + const char* address_buf = (const char*)&address; |
| + char buf[8]; |
| + int b = 0; |
| + |
| + //P8 i2c slave requires address to be shifted by 1 |
| + address = address << 1; |
| + |
| + ret = occ_i2c_write(client, address_buf, sizeof(address)); |
| + //if (ret != sizeof(address)) |
| + // return -I2C_WRITE_ERROR; |
| + |
| + ret = occ_i2c_read(client, buf, sizeof(buf)); |
| + //if (ret != sizeof(buf)) |
| + // return -I2C_READ_ERROR; |
| + |
| + for (b = 0; b < 8; b++) { |
| + data[offset + b] = buf[7 - b]; |
| + } |
| + |
| + return 0; |
| +} |
| + |
| +static int occ_putscom(struct i2c_client *client, uint32_t address, uint32_t data0, uint32_t data1) |
| +{ |
| + const char* address_buf = (const char*)&address; |
| + const char* d0 = (const char*)&data0; |
| + const char* d1 = (const char*)&data1; |
| + char buf[12]; |
| + uint32_t ret = 0; |
| + |
| + //P8 i2c slave requires address to be shifted by 1 |
| + address = address << 1; |
| + |
| + memcpy(&buf[0], address_buf, sizeof(address)); |
| + memcpy(&buf[4], d1, sizeof(data1)); |
| + memcpy(&buf[8], d0, sizeof(data0)); |
| + |
| + ret = occ_i2c_write(client, buf, sizeof(buf)); |
| + //if (ret != sizeof(buf)) |
| + // return I2C_WRITE_ERROR; |
| + |
| + return 0; |
| +} |
| + |
| +static int occ_check_i2c_errors(struct i2c_client *client) |
| +{ |
| + uint32_t v0; |
| + uint32_t v1; |
| + |
| + occ_getscom(client, I2C_STATUS_REG, &v0, &v1); |
| + if (v0 != 0x80000000) { |
| + printk("ERROR present in P8 I2C Slave. Clearing...\n"); |
| + occ_putscom(client, I2C_ERROR_REG, 0x00000000, 0x00000000); |
| + occ_putscom(client, I2C_STATUS_REG, 0x00000000, 0x00000000); |
| + return -1; |
| + } |
| + |
| + return 0; |
| +} |
| + |
| + |
| +static inline uint16_t get_occdata_length(char* d) |
| +{ |
| + uint16_t data_length = 0; |
| + |
| + data_length = d[3] << 8; |
| + data_length = data_length | d[4]; |
| + return data_length; |
| +} |
| + |
| + |
| +static int parse_occ_response(char* d, occ_response_t* o) |
| +{ |
| + int b = 0; |
| + int s = 0; |
| + int ret = 0; |
| + int dnum = 45; |
| + |
| + o->sequence_num = d[0]; |
| + o->cmd_type = d[1]; |
| + o->rtn_status = d[2]; |
| + o->data_length = d[3] << 8; |
| + o->data_length = o->data_length | d[4]; |
| + o->data.status = d[5]; |
| + o->data.ext_status = d[6]; |
| + o->data.occs_present = d[7]; |
| + o->data.config = d[8]; |
| + o->data.occ_state = d[9]; |
| + o->data.reserved0 = d[10]; |
| + o->data.reserved1 = d[11]; |
| + o->data.error_log_id = d[12]; |
| + o->data.error_log_addr_start = d[13] << 24; |
| + o->data.error_log_addr_start = o->data.error_log_addr_start | d[14] << 16; |
| + o->data.error_log_addr_start = o->data.error_log_addr_start | d[15] << 8; |
| + o->data.error_log_addr_start = o->data.error_log_addr_start | d[16]; |
| + o->data.error_log_length = d[17] << 8; |
| + o->data.error_log_length = o->data.error_log_length | d[18]; |
| + o->data.reserved2 = d[19]; |
| + o->data.reserved3 = d[20]; |
| + strncpy(&o->data.occ_code_level[0], (const char*)&d[21], 16); |
| + strncpy(&o->data.sensor_eye_catcher[0], (const char*)&d[37], 6); |
| + o->data.sensor_eye_catcher[6]='\0'; |
| + o->data.num_of_sensor_blocks=d[43]; |
| + o->data.sensor_data_version = d[44]; |
| + |
| + if (strcmp(o->data.sensor_eye_catcher, "SENSOR") != 0) { |
| + printk("ERROR: SENSOR not found at byte 37 (%s)\n",o->data.sensor_eye_catcher); |
| + return -1; |
| + } |
| + |
| + if (o->data.num_of_sensor_blocks == 0) { |
| + printk("ERROR: SENSOR block num is 0\n"); |
| + return -1; |
| + } |
| + |
| + o->data.blocks = kzalloc(sizeof(sensor_data_block) * o->data.num_of_sensor_blocks, GFP_KERNEL); |
| + if (o->data.blocks == NULL) |
| + return -ENOMEM; |
| + |
| + //printk("Reading %d sensor blocks\n", o->data.num_of_sensor_blocks); |
| + o->temp_block_id = -1; |
| + o->freq_block_id = -1; |
| + o->power_block_id = -1; |
| + o->caps_block_id = -1; |
| + for(b = 0; b < o->data.num_of_sensor_blocks; b++) { |
| + /* 8-byte sensor block head */ |
| + strncpy(&o->data.blocks[b].sensor_type[0], (const char*)&d[dnum], 4); |
| + o->data.blocks[b].reserved0 = d[dnum+4]; |
| + o->data.blocks[b].sensor_format = d[dnum+5]; |
| + o->data.blocks[b].sensor_length = d[dnum+6]; |
| + o->data.blocks[b].num_of_sensors = d[dnum+7]; |
| + dnum = dnum + 8; |
| + |
| + //printk("sensor block[%d]: type: %s, num_of_sensors: %d, sensor_length: %u\n", |
| + //b, o->data.blocks[b].sensor_type, o->data.blocks[b].num_of_sensors, |
| + //o->data.blocks[b].sensor_length); |
| + |
| + /* empty sensor block */ |
| + if (o->data.blocks[b].num_of_sensors <= 0) |
| + continue; |
| + if (o->data.blocks[b].sensor_length == 0) |
| + continue; |
| + |
| + if (strcmp(o->data.blocks[b].sensor_type, "FREQ") == 0) { |
| + o->data.blocks[b].sensor = |
| + kzalloc(sizeof(occ_sensor) * o->data.blocks[b].num_of_sensors, GFP_KERNEL); |
| + |
| + if (o->data.blocks[b].sensor == NULL) { |
| + ret = -ENOMEM; |
| + goto abort; |
| + } |
| + o->freq_block_id = b; |
| + for (s = 0; s < o->data.blocks[b].num_of_sensors; s++) { |
| + o->data.blocks[b].sensor[s].sensor_id = d[dnum] << 8; |
| + o->data.blocks[b].sensor[s].sensor_id = |
| + o->data.blocks[b].sensor[s].sensor_id | d[dnum+1]; |
| + o->data.blocks[b].sensor[s].value = d[dnum+2] << 8; |
| + o->data.blocks[b].sensor[s].value = o->data.blocks[b].sensor[s].value | d[dnum+3]; |
| + //printk("sensor[%d]-[%d]: id: %u, value: %u\n", |
| + // b, s, o->data.blocks[b].sensor[s].sensor_id, o->data.blocks[b].sensor[s].value); |
| + dnum = dnum + o->data.blocks[b].sensor_length; |
| + } |
| + } |
| + else if (strcmp(o->data.blocks[b].sensor_type, "TEMP") == 0) { |
| + |
| + o->data.blocks[b].sensor = |
| + kzalloc(sizeof(occ_sensor) * o->data.blocks[b].num_of_sensors, GFP_KERNEL); |
| + |
| + if (o->data.blocks[b].sensor == NULL) { |
| + ret = -ENOMEM; |
| + goto abort; |
| + } |
| + |
| + o->temp_block_id = b; |
| + for (s = 0; s < o->data.blocks[b].num_of_sensors; s++) { |
| + o->data.blocks[b].sensor[s].sensor_id = d[dnum] << 8; |
| + o->data.blocks[b].sensor[s].sensor_id = |
| + o->data.blocks[b].sensor[s].sensor_id | d[dnum+1]; |
| + o->data.blocks[b].sensor[s].value = d[dnum+2] << 8; |
| + o->data.blocks[b].sensor[s].value = o->data.blocks[b].sensor[s].value | d[dnum+3]; |
| + //printk("sensor[%d]-[%d]: id: %u, value: %u\n", |
| + // b, s, o->data.blocks[b].sensor[s].sensor_id, o->data.blocks[b].sensor[s].value); |
| + dnum = dnum + o->data.blocks[b].sensor_length; |
| + } |
| + } |
| + else if (strcmp(o->data.blocks[b].sensor_type, "POWR") == 0) { |
| + |
| + o->data.blocks[b].powr = |
| + kzalloc(sizeof(powr_sensor) * o->data.blocks[b].num_of_sensors, GFP_KERNEL); |
| + |
| + if (o->data.blocks[b].powr == NULL) { |
| + ret = -ENOMEM; |
| + goto abort; |
| + } |
| + o->power_block_id = b; |
| + for (s = 0; s < o->data.blocks[b].num_of_sensors; s++) { |
| + o->data.blocks[b].powr[s].sensor_id = d[dnum] << 8; |
| + o->data.blocks[b].powr[s].sensor_id = o->data.blocks[b].powr[s].sensor_id | d[dnum+1]; |
| + o->data.blocks[b].powr[s].update_tag = d[dnum+2] << 24; |
| + o->data.blocks[b].powr[s].update_tag = o->data.blocks[b].powr[s].update_tag | d[dnum+3] << 16; |
| + o->data.blocks[b].powr[s].update_tag = o->data.blocks[b].powr[s].update_tag | d[dnum+4] << 8; |
| + o->data.blocks[b].powr[s].update_tag = o->data.blocks[b].powr[s].update_tag | d[dnum+5]; |
| + o->data.blocks[b].powr[s].accumulator = d[dnum+6] << 24; |
| + o->data.blocks[b].powr[s].accumulator = o->data.blocks[b].powr[s].accumulator | d[dnum+7] << 16; |
| + o->data.blocks[b].powr[s].accumulator = o->data.blocks[b].powr[s].accumulator | d[dnum+8] << 8; |
| + o->data.blocks[b].powr[s].accumulator = o->data.blocks[b].powr[s].accumulator | d[dnum+9]; |
| + o->data.blocks[b].powr[s].value = d[dnum+10] << 8; |
| + o->data.blocks[b].powr[s].value = o->data.blocks[b].powr[s].value | d[dnum+11]; |
| + |
| + //printk("sensor[%d]-[%d]: id: %u, value: %u\n", |
| + // b, s, o->data.blocks[b].powr[s].sensor_id, o->data.blocks[b].powr[s].value); |
| + |
| + dnum = dnum + o->data.blocks[b].sensor_length; |
| + } |
| + } |
| + else if (strcmp(o->data.blocks[b].sensor_type, "CAPS") == 0) { |
| + |
| + o->data.blocks[b].caps = |
| + kzalloc(sizeof(caps_sensor) * o->data.blocks[b].num_of_sensors, GFP_KERNEL); |
| + |
| + if (o->data.blocks[b].caps == NULL) { |
| + ret = -ENOMEM; |
| + goto abort; |
| + } |
| + o->caps_block_id = b; |
| + for (s = 0; s < o->data.blocks[b].num_of_sensors; s++) { |
| + o->data.blocks[b].caps[s].curr_powercap = d[dnum] << 8; |
| + o->data.blocks[b].caps[s].curr_powercap = o->data.blocks[b].caps[s].curr_powercap | d[dnum+1]; |
| + o->data.blocks[b].caps[s].curr_powerreading = d[dnum+2] << 8; |
| + o->data.blocks[b].caps[s].curr_powerreading = o->data.blocks[b].caps[s].curr_powerreading | d[dnum+3]; |
| + o->data.blocks[b].caps[s].norm_powercap = d[dnum+4] << 8; |
| + o->data.blocks[b].caps[s].norm_powercap = o->data.blocks[b].caps[s].norm_powercap | d[dnum+5]; |
| + o->data.blocks[b].caps[s].max_powercap = d[dnum+6] << 8; |
| + o->data.blocks[b].caps[s].max_powercap = o->data.blocks[b].caps[s].max_powercap| d[dnum+7]; |
| + o->data.blocks[b].caps[s].min_powercap = d[dnum+8] << 8; |
| + o->data.blocks[b].caps[s].min_powercap = o->data.blocks[b].caps[s].min_powercap| d[dnum+9]; |
| + o->data.blocks[b].caps[s].user_powerlimit = d[dnum+10] << 8; |
| + o->data.blocks[b].caps[s].user_powerlimit = o->data.blocks[b].caps[s].user_powerlimit| d[dnum+11]; |
| + |
| + dnum = dnum + o->data.blocks[b].sensor_length; |
| + //printk("CAPS sensor #%d:\n", s); |
| + //printk("curr_powercap is %x \n", o->data.blocks[b].caps[s].curr_powercap); |
| + //printk("curr_powerreading is %x \n", o->data.blocks[b].caps[s].curr_powerreading); |
| + //printk("norm_powercap is %x \n", o->data.blocks[b].caps[s].norm_powercap); |
| + //printk("max_powercap is %x \n", o->data.blocks[b].caps[s].max_powercap); |
| + //printk("min_powercap is %x \n", o->data.blocks[b].caps[s].min_powercap); |
| + //printk("user_powerlimit is %x \n", o->data.blocks[b].caps[s].user_powerlimit); |
| + } |
| + |
| + } |
| + else { |
| + printk("ERROR: sensor type %s not supported\n", o->data.blocks[b].sensor_type); |
| + ret = -1; |
| + goto abort; |
| + } |
| + } |
| + |
| + return 0; |
| +abort: |
| + deinit_occ_resp_buf(o); |
| + return ret; |
| +} |
| + |
| +/* used for testing */ |
| +char fake_occ_rsp[OCC_DATA_MAX] = { |
| +0x69, 0x00, 0x00, 0x00, 0xa4, 0xc3, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| +0x00, 0x00, 0x00, 0x00, 0x00, 0x6f, 0x70, 0x5f, 0x6f, 0x63, 0x63, 0x5f, 0x31, 0x35, 0x30, 0x37, |
| +0x31, 0x36, 0x61, 0x00, 0x00, 0x53, 0x45, 0x4e, 0x53, 0x4f, 0x52, 0x04, 0x01, 0x54, 0x45, 0x4d, |
| +0x50, 0x00, 0x01, 0x04, 0x0a, 0x00 ,0x6a, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00, 0x6d, 0x00, |
| +0x00,0x00,0x6e,0x00, 0x00,0x00,0x6f,0x00, 0x00,0x00,0x70,0x00, 0x00,0x00,0x71,0x00, |
| +0x00,0x00,0x73,0x00, 0x00,0x00,0x74,0x00, 0x00,0x00,0x75,0x00, 0x00,0x46,0x52,0x45, |
| +0x51,0x00,0x01,0x04, 0x0a,0x00,0x76,0x00, 0x00,0x00,0x78,0x00, 0x00,0x00,0x79,0x00, |
| +0x00,0x00,0x7a,0x00, 0x00,0x00,0x7b,0x00, 0x00,0x00,0x7c,0x00, 0x00,0x00,0x7d,0x00, |
| +0x00,0x00,0x7f,0x00, 0x00,0x00,0x80,0x00, 0x00,0x00,0x81,0x00, 0x00,0x50,0x4f,0x57, |
| +0x52,0x00,0x01,0x0c, 0x00,0x43,0x41,0x50, 0x53,0x00,0x01,0x0c, 0x01,0x00,0x00,0x00, |
| +0x00,0x04,0xb0,0x09, 0x60,0x04,0x4c,0x00, 0x00,0x17,0xc5,}; |
| + |
| +//#define DUMP_RAW 1 |
| + |
| +static int occ_get_all(struct i2c_client *client, occ_response_t *occ_resp) |
| +{ |
| + char occ_data[OCC_DATA_MAX]; |
| + uint16_t num_bytes = 0; |
| + int b = 0; |
| + int ret = 0; |
| +/* |
| + //Procedure to access SRAM where OCC data is located |
| + occ_putscom(client, SCOM_OCC_SRAM_WOX, 0x08000000, 0x00000000); |
| + occ_putscom(client, SCOM_OCC_SRAM_WAND, 0xFBFFFFFF, 0xFFFFFFFF); |
| + occ_putscom(client, SCOM_OCC_SRAM_ADDR, OCC_RESPONSE_ADDR, 0x00000000); |
| + occ_putscom(client, SCOM_OCC_SRAM_ADDR, OCC_RESPONSE_ADDR, 0x00000000); |
| + |
| + occ_getscomb(client, SCOM_OCC_SRAM_DATA, occ_data, 0); |
| + |
| +*/ |
| + |
| + // Init OCB |
| + occ_putscom(client, OCB_STATUS_CONTROL_OR, 0x08000000, 0x00000000); |
| + occ_putscom(client, OCB_STATUS_CONTROL_AND, 0xFBFFFFFF, 0xFFFFFFFF); |
| + |
| + // Send poll command to OCC |
| + occ_putscom(client, OCB_ADDRESS, OCC_COMMAND_ADDR, 0x00000000); |
| + occ_putscom(client, OCB_ADDRESS, OCC_COMMAND_ADDR, 0x00000000); |
| + occ_putscom(client, OCB_DATA, 0x00000001, 0x10001100); |
| + |
| + // Trigger ATTN |
| + occ_putscom(client, ATTN_DATA, 0x01010000, 0x00000000); |
| + |
| + // TODO: check command status Refere to |
| + // "1.6.2 OCC Command/Response Sequence" in OCC_OpenPwr_FW_Interfaces1.2.pdf |
| + // Use sleep as workaround |
| + //msleep(2000); |
| + |
| + // Get response data |
| + occ_putscom(client, OCB_ADDRESS, OCC_RESPONSE_ADDR, 0x00000000); |
| + occ_getscomb(client, OCB_DATA, occ_data, 0); |
| + |
| + /* FIXME: use fake data to test driver without hw */ |
| + //printk("i2c-occ: using FAKE occ data\n"); |
| + //memcpy(&occ_data[0], &fake_occ_rsp[0], sizeof(occ_data)); |
| + |
| + num_bytes = get_occdata_length(occ_data); |
| + |
| + //printk("OCC data length: %d\n", num_bytes); |
| + |
| +#ifdef DUMP_RAW |
| + int i = 0; |
| + printk("\nRAW data\n==================\n"); |
| + for (i = 0; i < 8; i++) { |
| + if(i == 4) printk(" "); |
| + printk("%02x", occ_data[i]); |
| + } |
| + printk("\n"); |
| +#endif |
| + |
| + if (num_bytes > OCC_DATA_MAX) { |
| + printk("ERROR: OCC data length must be < 4KB\n"); |
| + return -1; |
| + } |
| + |
| + if (num_bytes <= 0) { |
| + printk("ERROR: OCC data length is zero\n"); |
| + return -1; |
| + } |
| + |
| + for (b = 8; b < num_bytes + 8; b = b + 8) { |
| + //occ_getscomb(client, SCOM_OCC_SRAM_DATA, occ_data, b); |
| + occ_getscomb(client, OCB_DATA, occ_data, b); |
| +#ifdef DUMP_RAW |
| + for (i = 0; i < 8; i++) { |
| + if(i == 4) printk(" "); |
| + printk("%02x", occ_data[b+i]); |
| + } |
| + printk("\n"); |
| +#endif |
| + |
| + } |
| + |
| + /* FIXME: use fake data to test driver without hw */ |
| + //memcpy(&occ_data[0], &fake_occ_rsp[0], sizeof(occ_data)); |
| + |
| + ret = parse_occ_response(occ_data, occ_resp); |
| + |
| + return ret; |
| +} |
| + |
| + |
| +static int occ_update_device(struct device *dev) |
| +{ |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + struct i2c_client *client = data->client; |
| + int ret = 0; |
| + |
| + mutex_lock(&data->update_lock); |
| + |
| + if (time_after(jiffies, data->last_updated + data->sample_time) |
| + || !data->valid) { |
| + deinit_occ_resp_buf(&data->occ_resp); |
| + |
| + ret = occ_get_all(client, &data->occ_resp); |
| + |
| + data->last_updated = jiffies; |
| + data->valid = 1; |
| + } |
| + mutex_unlock(&data->update_lock); |
| + |
| + return ret; |
| +} |
| + |
| +/* ----------------------------------------------------------------------*/ |
| +/* sysfs attributes for hwmon */ |
| + |
| +static ssize_t show_occ_temp_input(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device * dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + occ_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.temp_block_id].sensor == NULL) |
| + return -1; |
| + |
| + //printk("block_id: %d, sensor: %d\n", data->occ_resp.temp_block_id, n -1); |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.temp_block_id].sensor[n - 1]; |
| + /* in millidegree Celsius */ |
| + val = sensor->value * 1000; |
| + //printk("temp%d sensor value: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| +static ssize_t show_occ_temp_label(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + occ_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.temp_block_id].sensor == NULL) |
| + return -1; |
| + |
| + //printk("temp_block_id: %d, sensor: %d\n", data->occ_resp.temp_block_id, n -1); |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.temp_block_id].sensor[n - 1]; |
| + val = sensor->sensor_id; |
| + //printk("temp%d sensor id: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| +static ssize_t show_occ_power_label(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + powr_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + //printk("power_block_id: %d, sensor: %d\n", data->occ_resp.power_block_id, n -1); |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.power_block_id].powr == NULL) |
| + return -1; |
| + |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.power_block_id].powr[n - 1]; |
| + val = sensor->sensor_id; |
| + //printk("power%d sensor id: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| + |
| +static ssize_t show_occ_power_input(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + powr_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + //printk("power block_id: %d, sensor: %d\n", data->occ_resp.power_block_id, n -1); |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.power_block_id].powr == NULL) |
| + return -1; |
| + |
| + |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.power_block_id].powr[n - 1]; |
| + val = sensor->value; |
| + //printk("power%d sensor value: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| + |
| +static ssize_t show_occ_freq_label(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + occ_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.freq_block_id].sensor == NULL) |
| + return -1; |
| + |
| + //printk("freq_block_id: %d, sensor: %d\n", data->occ_resp.freq_block_id, n -1); |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.freq_block_id].sensor[n - 1]; |
| + val = sensor->sensor_id; |
| + //printk("freq%d sensor id: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| + |
| +static ssize_t show_occ_freq_input(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + occ_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.freq_block_id].sensor == NULL) |
| + return -1; |
| + |
| + //printk("block_id: %d, sensor: %d\n", data->occ_resp.freq_block_id, n -1); |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.freq_block_id].sensor[n - 1]; |
| + val = sensor->value; |
| + //printk("freq%d sensor value: %d\n", n, val); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| +static ssize_t show_occ_caps(struct device *hwmon_dev, struct device_attribute *da, char *buf) |
| +{ |
| + struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(da); |
| + int nr = attr->nr; |
| + int n = attr->index; |
| + struct device *dev = hwmon_dev->parent; |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int ret = 0; |
| + caps_sensor *sensor; |
| + int val = 0; |
| + |
| + ret = occ_update_device(dev); |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + //printk("block_id: %d, sensor: %d, nr: %d\n", data->occ_resp.caps_block_id, n - 1, nr); |
| + if (data->occ_resp.data.blocks == NULL || |
| + data->occ_resp.data.blocks[data->occ_resp.caps_block_id].caps == NULL) |
| + return -1; |
| + |
| + sensor = &data->occ_resp.data.blocks[data->occ_resp.caps_block_id].caps[n - 1]; |
| + |
| + switch (nr) { |
| + case 0: |
| + val = sensor->curr_powercap; |
| + break; |
| + case 1: |
| + val = sensor->curr_powerreading; |
| + break; |
| + case 2: |
| + val = sensor->norm_powercap; |
| + break; |
| + case 3: |
| + val = sensor->max_powercap; |
| + break; |
| + case 4: |
| + val = sensor->min_powercap; |
| + break; |
| + case 5: |
| + val = sensor->user_powerlimit; |
| + break; |
| + default: |
| + val = 0; |
| + } |
| + |
| + //printk("caps%d sensor value: %d, nr: %d\n", n, val, nr); |
| + |
| + //printk("------------- above are debug message, bellow is real output------------\n"); |
| + return sprintf(buf, "%d\n", val); |
| +} |
| + |
| +#if 0 |
| +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_occ_temp_input, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_occ_temp_input, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_occ_temp_input, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_occ_temp_input, NULL, 4); |
| +static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_occ_temp_input, NULL, 5); |
| +static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_occ_temp_input, NULL, 6); |
| +static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_occ_temp_input, NULL, 7); |
| +static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_occ_temp_input, NULL, 8); |
| +static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_occ_temp_input, NULL, 9); |
| +static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_occ_temp_label, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, show_occ_temp_label, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(temp3_label, S_IRUGO, show_occ_temp_label, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(temp4_label, S_IRUGO, show_occ_temp_label, NULL, 4); |
| +static SENSOR_DEVICE_ATTR(temp5_label, S_IRUGO, show_occ_temp_label, NULL, 5); |
| +static SENSOR_DEVICE_ATTR(temp6_label, S_IRUGO, show_occ_temp_label, NULL, 6); |
| +static SENSOR_DEVICE_ATTR(temp7_label, S_IRUGO, show_occ_temp_label, NULL, 7); |
| +static SENSOR_DEVICE_ATTR(temp8_label, S_IRUGO, show_occ_temp_label, NULL, 8); |
| +static SENSOR_DEVICE_ATTR(temp9_label, S_IRUGO, show_occ_temp_label, NULL, 9); |
| + |
| +static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, show_occ_power_input, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(power1_label, S_IRUGO, show_occ_power_label, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(power2_input, S_IRUGO, show_occ_power_input, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(power2_label, S_IRUGO, show_occ_power_label, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(power3_input, S_IRUGO, show_occ_power_input, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(power3_label, S_IRUGO, show_occ_power_label, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(power4_input, S_IRUGO, show_occ_power_input, NULL, 4); |
| +static SENSOR_DEVICE_ATTR(power4_label, S_IRUGO, show_occ_power_label, NULL, 4); |
| + |
| +static SENSOR_DEVICE_ATTR(freq1_input, S_IRUGO, show_occ_freq_input, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(freq1_label, S_IRUGO, show_occ_freq_label, NULL, 1); |
| +static SENSOR_DEVICE_ATTR(freq2_input, S_IRUGO, show_occ_freq_input, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(freq2_label, S_IRUGO, show_occ_freq_label, NULL, 2); |
| +static SENSOR_DEVICE_ATTR(freq3_input, S_IRUGO, show_occ_freq_input, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(freq3_label, S_IRUGO, show_occ_freq_label, NULL, 3); |
| +static SENSOR_DEVICE_ATTR(freq4_input, S_IRUGO, show_occ_freq_input, NULL, 4); |
| +static SENSOR_DEVICE_ATTR(freq4_label, S_IRUGO, show_occ_freq_label, NULL, 4); |
| + |
| +static struct attribute *occ_attrs[] = { |
| + &sensor_dev_attr_temp1_input.dev_attr.attr, |
| + &sensor_dev_attr_temp2_input.dev_attr.attr, |
| + &sensor_dev_attr_temp3_input.dev_attr.attr, |
| + &sensor_dev_attr_temp4_input.dev_attr.attr, |
| + &sensor_dev_attr_temp5_input.dev_attr.attr, |
| + &sensor_dev_attr_temp6_input.dev_attr.attr, |
| + &sensor_dev_attr_temp7_input.dev_attr.attr, |
| + &sensor_dev_attr_temp8_input.dev_attr.attr, |
| + &sensor_dev_attr_temp9_input.dev_attr.attr, |
| + &sensor_dev_attr_temp1_label.dev_attr.attr, |
| + &sensor_dev_attr_temp2_label.dev_attr.attr, |
| + &sensor_dev_attr_temp3_label.dev_attr.attr, |
| + &sensor_dev_attr_temp4_label.dev_attr.attr, |
| + &sensor_dev_attr_temp5_label.dev_attr.attr, |
| + &sensor_dev_attr_temp6_label.dev_attr.attr, |
| + &sensor_dev_attr_temp7_label.dev_attr.attr, |
| + &sensor_dev_attr_temp8_label.dev_attr.attr, |
| + &sensor_dev_attr_temp9_label.dev_attr.attr, |
| + &sensor_dev_attr_power1_input.dev_attr.attr, |
| + &sensor_dev_attr_power2_input.dev_attr.attr, |
| + &sensor_dev_attr_power3_input.dev_attr.attr, |
| + &sensor_dev_attr_power4_input.dev_attr.attr, |
| + &sensor_dev_attr_power1_label.dev_attr.attr, |
| + &sensor_dev_attr_power2_label.dev_attr.attr, |
| + &sensor_dev_attr_power3_label.dev_attr.attr, |
| + &sensor_dev_attr_power4_label.dev_attr.attr, |
| + &sensor_dev_attr_freq1_input.dev_attr.attr, |
| + &sensor_dev_attr_freq2_input.dev_attr.attr, |
| + &sensor_dev_attr_freq3_input.dev_attr.attr, |
| + &sensor_dev_attr_freq4_input.dev_attr.attr, |
| + &sensor_dev_attr_freq1_label.dev_attr.attr, |
| + &sensor_dev_attr_freq2_label.dev_attr.attr, |
| + &sensor_dev_attr_freq3_label.dev_attr.attr, |
| + &sensor_dev_attr_freq4_label.dev_attr.attr, |
| + |
| + NULL |
| +}; |
| +ATTRIBUTE_GROUPS(occ); |
| + |
| +#endif |
| + |
| +static struct sensor_device_attribute temp_input[] = { |
| + SENSOR_ATTR(temp1_input, S_IRUGO, show_occ_temp_input, NULL, 1), |
| + SENSOR_ATTR(temp2_input, S_IRUGO, show_occ_temp_input, NULL, 2), |
| + SENSOR_ATTR(temp3_input, S_IRUGO, show_occ_temp_input, NULL, 3), |
| + SENSOR_ATTR(temp4_input, S_IRUGO, show_occ_temp_input, NULL, 4), |
| + SENSOR_ATTR(temp5_input, S_IRUGO, show_occ_temp_input, NULL, 5), |
| + SENSOR_ATTR(temp6_input, S_IRUGO, show_occ_temp_input, NULL, 6), |
| + SENSOR_ATTR(temp7_input, S_IRUGO, show_occ_temp_input, NULL, 7), |
| + SENSOR_ATTR(temp8_input, S_IRUGO, show_occ_temp_input, NULL, 8), |
| + SENSOR_ATTR(temp9_input, S_IRUGO, show_occ_temp_input, NULL, 9), |
| + SENSOR_ATTR(temp10_input, S_IRUGO, show_occ_temp_input, NULL, 10), |
| + SENSOR_ATTR(temp11_input, S_IRUGO, show_occ_temp_input, NULL, 11), |
| + SENSOR_ATTR(temp12_input, S_IRUGO, show_occ_temp_input, NULL, 12), |
| + SENSOR_ATTR(temp13_input, S_IRUGO, show_occ_temp_input, NULL, 13), |
| + SENSOR_ATTR(temp14_input, S_IRUGO, show_occ_temp_input, NULL, 14), |
| + SENSOR_ATTR(temp15_input, S_IRUGO, show_occ_temp_input, NULL, 15), |
| + SENSOR_ATTR(temp16_input, S_IRUGO, show_occ_temp_input, NULL, 16), |
| + SENSOR_ATTR(temp17_input, S_IRUGO, show_occ_temp_input, NULL, 17), |
| + SENSOR_ATTR(temp18_input, S_IRUGO, show_occ_temp_input, NULL, 18), |
| + SENSOR_ATTR(temp19_input, S_IRUGO, show_occ_temp_input, NULL, 19), |
| + SENSOR_ATTR(temp20_input, S_IRUGO, show_occ_temp_input, NULL, 20), |
| + SENSOR_ATTR(temp21_input, S_IRUGO, show_occ_temp_input, NULL, 21), |
| + SENSOR_ATTR(temp22_input, S_IRUGO, show_occ_temp_input, NULL, 22), |
| +}; |
| + |
| +static struct sensor_device_attribute temp_label[] = { |
| + SENSOR_ATTR(temp1_label, S_IRUGO, show_occ_temp_label, NULL, 1), |
| + SENSOR_ATTR(temp2_label, S_IRUGO, show_occ_temp_label, NULL, 2), |
| + SENSOR_ATTR(temp3_label, S_IRUGO, show_occ_temp_label, NULL, 3), |
| + SENSOR_ATTR(temp4_label, S_IRUGO, show_occ_temp_label, NULL, 4), |
| + SENSOR_ATTR(temp5_label, S_IRUGO, show_occ_temp_label, NULL, 5), |
| + SENSOR_ATTR(temp6_label, S_IRUGO, show_occ_temp_label, NULL, 6), |
| + SENSOR_ATTR(temp7_label, S_IRUGO, show_occ_temp_label, NULL, 7), |
| + SENSOR_ATTR(temp8_label, S_IRUGO, show_occ_temp_label, NULL, 8), |
| + SENSOR_ATTR(temp9_label, S_IRUGO, show_occ_temp_label, NULL, 9), |
| + SENSOR_ATTR(temp10_label, S_IRUGO, show_occ_temp_label, NULL, 10), |
| + SENSOR_ATTR(temp11_label, S_IRUGO, show_occ_temp_label, NULL, 11), |
| + SENSOR_ATTR(temp12_label, S_IRUGO, show_occ_temp_label, NULL, 12), |
| + SENSOR_ATTR(temp13_label, S_IRUGO, show_occ_temp_label, NULL, 13), |
| + SENSOR_ATTR(temp14_label, S_IRUGO, show_occ_temp_label, NULL, 14), |
| + SENSOR_ATTR(temp15_label, S_IRUGO, show_occ_temp_label, NULL, 15), |
| + SENSOR_ATTR(temp16_label, S_IRUGO, show_occ_temp_label, NULL, 16), |
| + SENSOR_ATTR(temp17_label, S_IRUGO, show_occ_temp_label, NULL, 17), |
| + SENSOR_ATTR(temp18_label, S_IRUGO, show_occ_temp_label, NULL, 18), |
| + SENSOR_ATTR(temp19_label, S_IRUGO, show_occ_temp_label, NULL, 19), |
| + SENSOR_ATTR(temp20_label, S_IRUGO, show_occ_temp_label, NULL, 20), |
| + SENSOR_ATTR(temp21_label, S_IRUGO, show_occ_temp_label, NULL, 21), |
| + SENSOR_ATTR(temp22_label, S_IRUGO, show_occ_temp_label, NULL, 22), |
| + |
| +}; |
| + |
| +#define TEMP_UNIT_ATTRS(X) \ |
| +{ &temp_input[X].dev_attr.attr, \ |
| + &temp_label[X].dev_attr.attr, \ |
| + NULL \ |
| +} |
| + |
| +/* 10-core CPU, occ has 22 temp sensors, more socket, more sensors */ |
| +static struct attribute *occ_temp_attr[][3] = { |
| + TEMP_UNIT_ATTRS(0), |
| + TEMP_UNIT_ATTRS(1), |
| + TEMP_UNIT_ATTRS(2), |
| + TEMP_UNIT_ATTRS(3), |
| + TEMP_UNIT_ATTRS(4), |
| + TEMP_UNIT_ATTRS(5), |
| + TEMP_UNIT_ATTRS(6), |
| + TEMP_UNIT_ATTRS(7), |
| + TEMP_UNIT_ATTRS(8), |
| + TEMP_UNIT_ATTRS(9), |
| + TEMP_UNIT_ATTRS(10), |
| + TEMP_UNIT_ATTRS(11), |
| + TEMP_UNIT_ATTRS(12), |
| + TEMP_UNIT_ATTRS(13), |
| + TEMP_UNIT_ATTRS(14), |
| + TEMP_UNIT_ATTRS(15), |
| + TEMP_UNIT_ATTRS(16), |
| + TEMP_UNIT_ATTRS(17), |
| + TEMP_UNIT_ATTRS(18), |
| + TEMP_UNIT_ATTRS(19), |
| + TEMP_UNIT_ATTRS(20), |
| + TEMP_UNIT_ATTRS(21), |
| +}; |
| + |
| +static const struct attribute_group occ_temp_attr_group[] = { |
| + { .attrs = occ_temp_attr[0] }, |
| + { .attrs = occ_temp_attr[1] }, |
| + { .attrs = occ_temp_attr[2] }, |
| + { .attrs = occ_temp_attr[3] }, |
| + { .attrs = occ_temp_attr[4] }, |
| + { .attrs = occ_temp_attr[5] }, |
| + { .attrs = occ_temp_attr[6] }, |
| + { .attrs = occ_temp_attr[7] }, |
| + { .attrs = occ_temp_attr[8] }, |
| + { .attrs = occ_temp_attr[9] }, |
| + { .attrs = occ_temp_attr[10] }, |
| + { .attrs = occ_temp_attr[11] }, |
| + { .attrs = occ_temp_attr[12] }, |
| + { .attrs = occ_temp_attr[13] }, |
| + { .attrs = occ_temp_attr[14] }, |
| + { .attrs = occ_temp_attr[15] }, |
| + { .attrs = occ_temp_attr[16] }, |
| + { .attrs = occ_temp_attr[17] }, |
| + { .attrs = occ_temp_attr[18] }, |
| + { .attrs = occ_temp_attr[19] }, |
| + { .attrs = occ_temp_attr[20] }, |
| + { .attrs = occ_temp_attr[21] }, |
| +}; |
| + |
| + |
| +static struct sensor_device_attribute freq_input[] = { |
| + SENSOR_ATTR(freq1_input, S_IRUGO, show_occ_freq_input, NULL, 1), |
| + SENSOR_ATTR(freq2_input, S_IRUGO, show_occ_freq_input, NULL, 2), |
| + SENSOR_ATTR(freq3_input, S_IRUGO, show_occ_freq_input, NULL, 3), |
| + SENSOR_ATTR(freq4_input, S_IRUGO, show_occ_freq_input, NULL, 4), |
| + SENSOR_ATTR(freq5_input, S_IRUGO, show_occ_freq_input, NULL, 5), |
| + SENSOR_ATTR(freq6_input, S_IRUGO, show_occ_freq_input, NULL, 6), |
| + SENSOR_ATTR(freq7_input, S_IRUGO, show_occ_freq_input, NULL, 7), |
| + SENSOR_ATTR(freq8_input, S_IRUGO, show_occ_freq_input, NULL, 8), |
| + SENSOR_ATTR(freq9_input, S_IRUGO, show_occ_freq_input, NULL, 9), |
| + SENSOR_ATTR(freq10_input, S_IRUGO, show_occ_freq_input, NULL, 10), |
| +}; |
| + |
| +static struct sensor_device_attribute freq_label[] = { |
| + SENSOR_ATTR(freq1_label, S_IRUGO, show_occ_freq_label, NULL, 1), |
| + SENSOR_ATTR(freq2_label, S_IRUGO, show_occ_freq_label, NULL, 2), |
| + SENSOR_ATTR(freq3_label, S_IRUGO, show_occ_freq_label, NULL, 3), |
| + SENSOR_ATTR(freq4_label, S_IRUGO, show_occ_freq_label, NULL, 4), |
| + SENSOR_ATTR(freq5_label, S_IRUGO, show_occ_freq_label, NULL, 5), |
| + SENSOR_ATTR(freq6_label, S_IRUGO, show_occ_freq_label, NULL, 6), |
| + SENSOR_ATTR(freq7_label, S_IRUGO, show_occ_freq_label, NULL, 7), |
| + SENSOR_ATTR(freq8_label, S_IRUGO, show_occ_freq_label, NULL, 8), |
| + SENSOR_ATTR(freq9_label, S_IRUGO, show_occ_freq_label, NULL, 9), |
| + SENSOR_ATTR(freq10_label, S_IRUGO, show_occ_freq_label, NULL, 10), |
| + |
| +}; |
| + |
| +#define FREQ_UNIT_ATTRS(X) \ |
| +{ &freq_input[X].dev_attr.attr, \ |
| + &freq_label[X].dev_attr.attr, \ |
| + NULL \ |
| +} |
| + |
| +/* 10-core CPU, occ has 22 freq sensors, more socket, more sensors */ |
| +static struct attribute *occ_freq_attr[][3] = { |
| + FREQ_UNIT_ATTRS(0), |
| + FREQ_UNIT_ATTRS(1), |
| + FREQ_UNIT_ATTRS(2), |
| + FREQ_UNIT_ATTRS(3), |
| + FREQ_UNIT_ATTRS(4), |
| + FREQ_UNIT_ATTRS(5), |
| + FREQ_UNIT_ATTRS(6), |
| + FREQ_UNIT_ATTRS(7), |
| + FREQ_UNIT_ATTRS(8), |
| + FREQ_UNIT_ATTRS(9), |
| +}; |
| + |
| +static const struct attribute_group occ_freq_attr_group[] = { |
| + { .attrs = occ_freq_attr[0] }, |
| + { .attrs = occ_freq_attr[1] }, |
| + { .attrs = occ_freq_attr[2] }, |
| + { .attrs = occ_freq_attr[3] }, |
| + { .attrs = occ_freq_attr[4] }, |
| + { .attrs = occ_freq_attr[5] }, |
| + { .attrs = occ_freq_attr[6] }, |
| + { .attrs = occ_freq_attr[7] }, |
| + { .attrs = occ_freq_attr[8] }, |
| + { .attrs = occ_freq_attr[9] }, |
| +}; |
| + |
| +static struct sensor_device_attribute_2 caps_curr_powercap[] = { |
| + SENSOR_ATTR_2(caps_curr_powercap, S_IRUGO, show_occ_caps, NULL, 0, 1), |
| +}; |
| +static struct sensor_device_attribute_2 caps_curr_powerreading[] = { |
| + SENSOR_ATTR_2(caps_curr_powerreading, S_IRUGO, show_occ_caps, NULL, 1, 1), |
| +}; |
| +static struct sensor_device_attribute_2 caps_norm_powercap[] = { |
| + SENSOR_ATTR_2(caps_norm_powercap, S_IRUGO, show_occ_caps, NULL, 2, 1), |
| +}; |
| +static struct sensor_device_attribute_2 caps_max_powercap[] = { |
| + SENSOR_ATTR_2(caps_max_powercap, S_IRUGO, show_occ_caps, NULL, 3, 1), |
| +}; |
| +static struct sensor_device_attribute_2 caps_min_powercap[] = { |
| + SENSOR_ATTR_2(caps_min_powercap, S_IRUGO, show_occ_caps, NULL, 4, 1), |
| +}; |
| +static struct sensor_device_attribute_2 caps_user_powerlimit[] = { |
| + SENSOR_ATTR_2(caps_user_powerlimit, S_IRUGO, show_occ_caps, NULL, 5, 1), |
| +}; |
| +#define CAPS_UNIT_ATTRS(X) \ |
| +{ &caps_curr_powercap[X].dev_attr.attr, \ |
| + &caps_curr_powerreading[X].dev_attr.attr, \ |
| + &caps_norm_powercap[X].dev_attr.attr, \ |
| + &caps_max_powercap[X].dev_attr.attr, \ |
| + &caps_min_powercap[X].dev_attr.attr, \ |
| + &caps_user_powerlimit[X].dev_attr.attr, \ |
| + NULL \ |
| +} |
| + |
| +/* 10-core CPU, occ has 1 caps sensors */ |
| +static struct attribute *occ_caps_attr[][7] = { |
| + CAPS_UNIT_ATTRS(0), |
| +}; |
| +static const struct attribute_group occ_caps_attr_group[] = { |
| + { .attrs = occ_caps_attr[0] }, |
| +}; |
| + |
| +static struct sensor_device_attribute power_input[] = { |
| + SENSOR_ATTR(power1_input, S_IRUGO, show_occ_power_input, NULL, 1), |
| + SENSOR_ATTR(power2_input, S_IRUGO, show_occ_power_input, NULL, 2), |
| + SENSOR_ATTR(power3_input, S_IRUGO, show_occ_power_input, NULL, 3), |
| + SENSOR_ATTR(power4_input, S_IRUGO, show_occ_power_input, NULL, 4), |
| + SENSOR_ATTR(power5_input, S_IRUGO, show_occ_power_input, NULL, 5), |
| + SENSOR_ATTR(power6_input, S_IRUGO, show_occ_power_input, NULL, 6), |
| + SENSOR_ATTR(power7_input, S_IRUGO, show_occ_power_input, NULL, 7), |
| + SENSOR_ATTR(power8_input, S_IRUGO, show_occ_power_input, NULL, 8), |
| + SENSOR_ATTR(power9_input, S_IRUGO, show_occ_power_input, NULL, 9), |
| + SENSOR_ATTR(power10_input, S_IRUGO, show_occ_power_input, NULL, 10), |
| + SENSOR_ATTR(power11_input, S_IRUGO, show_occ_power_input, NULL, 11), |
| +}; |
| + |
| +static struct sensor_device_attribute power_label[] = { |
| + SENSOR_ATTR(power1_label, S_IRUGO, show_occ_power_label, NULL, 1), |
| + SENSOR_ATTR(power2_label, S_IRUGO, show_occ_power_label, NULL, 2), |
| + SENSOR_ATTR(power3_label, S_IRUGO, show_occ_power_label, NULL, 3), |
| + SENSOR_ATTR(power4_label, S_IRUGO, show_occ_power_label, NULL, 4), |
| + SENSOR_ATTR(power5_label, S_IRUGO, show_occ_power_label, NULL, 5), |
| + SENSOR_ATTR(power6_label, S_IRUGO, show_occ_power_label, NULL, 6), |
| + SENSOR_ATTR(power7_label, S_IRUGO, show_occ_power_label, NULL, 7), |
| + SENSOR_ATTR(power8_label, S_IRUGO, show_occ_power_label, NULL, 8), |
| + SENSOR_ATTR(power9_label, S_IRUGO, show_occ_power_label, NULL, 9), |
| + SENSOR_ATTR(power10_label, S_IRUGO, show_occ_power_label, NULL, 10), |
| + SENSOR_ATTR(power11_label, S_IRUGO, show_occ_power_label, NULL, 11), |
| +}; |
| + |
| +#define POWER_UNIT_ATTRS(X) \ |
| +{ &power_input[X].dev_attr.attr, \ |
| + &power_label[X].dev_attr.attr, \ |
| + NULL \ |
| +} |
| + |
| +/* 10-core CPU, occ has 11 power sensors, more socket, more sensors */ |
| +static struct attribute *occ_power_attr[][3] = { |
| + POWER_UNIT_ATTRS(0), |
| + POWER_UNIT_ATTRS(1), |
| + POWER_UNIT_ATTRS(2), |
| + POWER_UNIT_ATTRS(3), |
| + POWER_UNIT_ATTRS(4), |
| + POWER_UNIT_ATTRS(5), |
| + POWER_UNIT_ATTRS(6), |
| + POWER_UNIT_ATTRS(7), |
| + POWER_UNIT_ATTRS(8), |
| + POWER_UNIT_ATTRS(9), |
| + POWER_UNIT_ATTRS(10), |
| +}; |
| + |
| +static const struct attribute_group occ_power_attr_group[] = { |
| + { .attrs = occ_power_attr[0] }, |
| + { .attrs = occ_power_attr[1] }, |
| + { .attrs = occ_power_attr[2] }, |
| + { .attrs = occ_power_attr[3] }, |
| + { .attrs = occ_power_attr[4] }, |
| + { .attrs = occ_power_attr[5] }, |
| + { .attrs = occ_power_attr[6] }, |
| + { .attrs = occ_power_attr[7] }, |
| + { .attrs = occ_power_attr[8] }, |
| + { .attrs = occ_power_attr[9] }, |
| + { .attrs = occ_power_attr[10] }, |
| +}; |
| + |
| +static void occ_remove_sysfs_files(struct device *dev) |
| +{ |
| + int i = 0; |
| + |
| + for (i = 0; i < ARRAY_SIZE(occ_temp_attr_group); i++) |
| + sysfs_remove_group(&dev->kobj, &occ_temp_attr_group[i]); |
| + |
| + for (i = 0; i < ARRAY_SIZE(occ_freq_attr_group); i++) |
| + sysfs_remove_group(&dev->kobj, &occ_freq_attr_group[i]); |
| + |
| + for (i = 0; i < ARRAY_SIZE(occ_power_attr_group); i++) |
| + sysfs_remove_group(&dev->kobj, &occ_power_attr_group[i]); |
| + |
| + for (i = 0; i < ARRAY_SIZE(occ_caps_attr_group); i++) |
| + sysfs_remove_group(&dev->kobj, &occ_caps_attr_group[i]); |
| +} |
| + |
| + |
| +static int occ_create_sysfs_attribute(struct device *dev) |
| +{ |
| + /* The sensor number varies for different |
| + * platform depending on core number. We'd better |
| + * create them dynamically */ |
| + struct occ_drv_data *data = dev_get_drvdata(dev); |
| + int i = 0; |
| + int num_of_sensors = 0; |
| + int ret = 0; |
| + |
| + /* get sensor number from occ. */ |
| + ret = occ_update_device(dev); |
| + if (ret != 0) |
| + { |
| + /* FIXME: to test fake data */ |
| + printk("ERROR: cannot get occ sensor data: %d\n", ret); |
| + return ret; |
| + } |
| + |
| + if (data->occ_resp.data.blocks == NULL) |
| + return -1; |
| + |
| + /* temp sensors */ |
| + if (data->occ_resp.temp_block_id >= 0) |
| + { |
| + num_of_sensors = data->occ_resp.data.blocks[data->occ_resp.temp_block_id].num_of_sensors; |
| + for (i = 0; i < num_of_sensors; i++) |
| + { |
| + //printk("create temp group: %d\n", i); |
| + //ret = sysfs_create_group(&dev->kobj, &occ_temp_attr_group[i]); |
| + ret = sysfs_create_group(&data->hwmon_dev->kobj, &occ_temp_attr_group[i]); |
| + if (ret) |
| + { |
| + dev_err(dev, "error create temp sysfs entry\n"); |
| + goto error; |
| + } |
| + } |
| + } |
| + |
| + /* freq sensors */ |
| + if (data->occ_resp.freq_block_id >= 0) |
| + { |
| + num_of_sensors = data->occ_resp.data.blocks[data->occ_resp.freq_block_id].num_of_sensors; |
| + for (i = 0; i < num_of_sensors; i++) |
| + { |
| + //printk("create freq group: %d\n", i); |
| + //ret = sysfs_create_group(&dev->kobj, &occ_temp_attr_group[i]); |
| + ret = sysfs_create_group(&data->hwmon_dev->kobj, &occ_freq_attr_group[i]); |
| + if (ret) |
| + { |
| + dev_err(dev, "error create freq sysfs entry\n"); |
| + goto error; |
| + } |
| + } |
| + } |
| + |
| + /* power sensors */ |
| + //printk("power_block_id: %d\n", data->occ_resp.power_block_id); |
| + if (data->occ_resp.power_block_id >= 0) |
| + { |
| + num_of_sensors = data->occ_resp.data.blocks[data->occ_resp.power_block_id].num_of_sensors; |
| + for (i = 0; i < num_of_sensors; i++) |
| + { |
| + //printk("create power group: %d\n", i); |
| + //ret = sysfs_create_group(&dev->kobj, &occ_temp_attr_group[i]); |
| + ret = sysfs_create_group(&data->hwmon_dev->kobj, &occ_power_attr_group[i]); |
| + if (ret) |
| + { |
| + dev_err(dev, "error create power sysfs entry\n"); |
| + goto error; |
| + } |
| + } |
| + } |
| + |
| + /* caps sensors */ |
| + //printk("caps_block_id: %d\n", data->occ_resp.caps_block_id); |
| + if (data->occ_resp.caps_block_id >= 0) |
| + { |
| + num_of_sensors = data->occ_resp.data.blocks[data->occ_resp.caps_block_id].num_of_sensors; |
| + for (i = 0; i < num_of_sensors; i++) |
| + { |
| + //printk("create caps group: %d\n", i); |
| + //ret = sysfs_create_group(&dev->kobj, &occ_temp_attr_group[i]); |
| + ret = sysfs_create_group(&data->hwmon_dev->kobj, &occ_caps_attr_group[i]); |
| + if (ret) |
| + { |
| + dev_err(dev, "error create caps sysfs entry\n"); |
| + goto error; |
| + } |
| + } |
| + } |
| + |
| + return 0; |
| +error: |
| + occ_remove_sysfs_files(data->hwmon_dev); |
| + return ret; |
| +} |
| + |
| +/*-----------------------------------------------------------------------*/ |
| +/* device probe and removal */ |
| + |
| +#define OCC_I2C_ADDR 0x50 |
| +#define OCC_I2C_NAME "occ-i2c" |
| + |
| +enum occ_type { |
| + occ_id, |
| +}; |
| + |
| +static int occ_probe(struct i2c_client *client, const struct i2c_device_id *id) |
| +{ |
| + struct device *dev = &client->dev; |
| + struct occ_drv_data *data; |
| + unsigned long funcs; |
| + struct device_node *np = dev->of_node; |
| + //u32 pval = 0; |
| + int ret = 0; |
| + |
| + data = devm_kzalloc(dev, sizeof(struct occ_drv_data), GFP_KERNEL); |
| + if (!data) |
| + return -ENOMEM; |
| + |
| + data->client = client; |
| + i2c_set_clientdata(client, data); |
| + mutex_init(&data->update_lock); |
| + data->sample_time = HZ; |
| + |
| + /* Yi: i2c-core should assign address to |
| + * client when detection - but it does not work FIXME */ |
| + //client->addr = OCC_I2C_ADDR; |
| + |
| + /* Yi: read address from device table */ |
| + //if (of_property_read_u32(np, "reg", &pval)) { |
| + // dev_err(&client->dev, "invalid reg\n"); |
| + //} |
| + //client->addr = pval; |
| + |
| + /* configure the driver */ |
| + //dev_dbg(dev, "occ register hwmon @0x%x\n", client->addr); |
| + //data->hwmon_dev = hwmon_device_register_with_groups(dev, "occ", |
| + // data, occ_groups); |
| + |
| + /* Yi: try to create sysfs attributes dynamically */ |
| + data->hwmon_dev = hwmon_device_register(dev); |
| + if (IS_ERR(data->hwmon_dev)) |
| + return PTR_ERR(data->hwmon_dev); |
| + |
| + ret = occ_create_sysfs_attribute(dev); |
| + if (ret) |
| + { |
| + hwmon_device_unregister(data->hwmon_dev); |
| + return ret; |
| + } |
| + |
| + data->hwmon_dev->parent = dev; |
| + |
| + //dev_dbg(dev, "%s: sensor '%s'\n", |
| + // dev_name(data->hwmon_dev), client->name); |
| + |
| + funcs = i2c_get_functionality(client->adapter); |
| + //dev_info(dev, "i2c adaptor supports function: 0x%lx\n", funcs); |
| + |
| + /* Yi: seems always error? disable for now */ |
| + //occ_check_i2c_errors(client); |
| + |
| + //dev_info(dev, "occ i2c driver ready: i2c addr@0x%x\n", client->addr); |
| + printk("occ i2c driver ready: i2c addr@0x%x\n", client->addr); |
| + |
| + return 0; |
| +} |
| + |
| +static int occ_remove(struct i2c_client *client) |
| +{ |
| + struct occ_drv_data *data = i2c_get_clientdata(client); |
| + |
| + /* free allocated sensor memory */ |
| + deinit_occ_resp_buf(&data->occ_resp); |
| + |
| + //occ_remove_sysfs_files(&client->dev); |
| + occ_remove_sysfs_files(data->hwmon_dev); |
| + hwmon_device_unregister(data->hwmon_dev); |
| + return 0; |
| +} |
| + |
| +/* used for old-style board info */ |
| +static const struct i2c_device_id occ_ids[] = { |
| + { OCC_I2C_NAME, occ_id, }, |
| + { /* LIST END */ } |
| +}; |
| +MODULE_DEVICE_TABLE(i2c, occ_ids); |
| + |
| +static const struct of_device_id i2c_occ_of_match[] = { |
| + {.compatible = "ibm,occ-i2c"}, |
| + {}, |
| +}; |
| + |
| +MODULE_DEVICE_TABLE(of, i2c_occ_of_match); |
| + |
| +#ifdef CONFIG_PM |
| +static int occ_suspend(struct device *dev) |
| +{ |
| + //struct i2c_client *client = to_i2c_client(dev); |
| + /* TODO */ |
| + return 0; |
| +} |
| + |
| +static int occ_resume(struct device *dev) |
| +{ |
| + //struct i2c_client *client = to_i2c_client(dev); |
| + /* TODO */ |
| + return 0; |
| +} |
| + |
| +static const struct dev_pm_ops occ_dev_pm_ops = { |
| + .suspend = occ_suspend, |
| + .resume = occ_resume, |
| +}; |
| +#define OCC_DEV_PM_OPS (&occ_dev_pm_ops) |
| +#else |
| +#define OCC_DEV_PM_OPS NULL |
| +#endif /* CONFIG_PM */ |
| + |
| +/* Yi: i2c-core uses i2c-detect() to detect device in bellow address list. |
| + If exists, address will be assigned to client. |
| + * It is also possible to read address from device table. */ |
| +static const unsigned short normal_i2c[] = {0x50, 0x51, I2C_CLIENT_END }; |
| + |
| +/* Return 0 if detection is successful, -ENODEV otherwise */ |
| +static int occ_detect(struct i2c_client *new_client, |
| + struct i2c_board_info *info) |
| +{ |
| + /* i2c-core need this function to create new device */ |
| + strncpy(info->type, OCC_I2C_NAME, sizeof(OCC_I2C_NAME)); |
| + return 0; |
| +} |
| + |
| +static struct i2c_driver occ_driver = { |
| + .class = I2C_CLASS_HWMON, |
| + .driver = { |
| + .name = OCC_I2C_NAME, |
| + .pm = OCC_DEV_PM_OPS, |
| + .of_match_table = i2c_occ_of_match, |
| + }, |
| + .probe = occ_probe, |
| + .remove = occ_remove, |
| + .id_table = occ_ids, |
| + .address_list = normal_i2c, |
| + .detect = occ_detect, |
| +}; |
| + |
| +module_i2c_driver(occ_driver); |
| + |
| +#if 0 |
| +/* Create new i2c device */ |
| +static struct i2c_board_info my_dev_info[] __initdata = { |
| + { |
| + I2C_BOARD_INFO(OCC_I2C_NAME, 0x50), |
| + }, |
| +}; |
| + |
| +static struct i2c_client *my_client; |
| + |
| +static int occ_init(void) |
| +{ |
| + static int sys_adap_bus_num = 3; |
| + struct i2c_adapter* adap = i2c_get_adapter(sys_adap_bus_num); |
| + |
| + if(adap==NULL) { |
| + printk("[OCC-DEBUG] i2c_get_adapter fail!\n"); |
| + return -1; |
| + } |
| + |
| + my_client = i2c_new_device(adap, &my_dev_info[0]); |
| + if( my_client==NULL ){ |
| + printk("[OCC-DEBUG] i2c_new_device fail!\n"); |
| + return -1; |
| + } |
| + i2c_put_adapter(adap); |
| + return i2c_add_driver(&occ_driver); |
| +} |
| + |
| +static void __exit occ_exit(void) |
| +{ |
| + i2c_unregister_device(my_client); |
| + i2c_del_driver(&occ_driver); |
| +} |
| + |
| +module_init(occ_init); |
| +module_exit(occ_exit); |
| + |
| +#endif |
| + |
| +MODULE_AUTHOR("Li Yi <shliyi@cn.ibm.com>"); |
| +MODULE_DESCRIPTION("BMC OCC monitor driver"); |
| +MODULE_LICENSE("GPL"); |