[PATCH kernel-hwmon-occ 02/10] remove the driver to change file name
OpenBMC Patches
openbmc-patches at stwcx.xyz
Thu Nov 12 21:20:04 AEDT 2015
From: adamliyi <adamliyi at msn.com>
---
occ-i2c.c | 880 --------------------------------------------------------------
1 file changed, 880 deletions(-)
delete mode 100644 occ-i2c.c
diff --git a/occ-i2c.c b/occ-i2c.c
deleted file mode 100644
index b5247d6..0000000
--- a/occ-i2c.c
+++ /dev/null
@@ -1,880 +0,0 @@
-/*
- * 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>
-
-#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 {
- 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;
-} 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;
- uint16_t temp_block_id;
- uint16_t freq_block_id;
- uint16_t power_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; /* 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
-#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);
- }
-
- 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;
-
- pr_debug("i2c_read: reading %zu bytes.\n", count);
- 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;
-
- pr_debug("i2c_write: writing %zu bytes.\n", count);
- 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));
- 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);
- 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].sensor[s].sensor_id, o->data.blocks[b].sensor[s].value);
-
- dnum = dnum + o->data.blocks[b].sensor_length;
- }
- }
- else {
- printk("ERROR: sensor type %s not supported\n", o->data.blocks[b].sensor_type);
- continue;
- /* FIX: ignore wrong sensor type? */
- //ret = -1;
- //goto abort;
- }
- }
-
- return ret;
-abort:
- deinit_occ_resp_buf(o);
- return ret;
-}
-
-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,};
-
-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);
-
- /* 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);
-
- if (num_bytes > OCC_DATA_MAX) {
- printk("ERROR: OCC data length must be < 4KB\n");
- /* yi: debug */
- return -1;
- }
-
- if (num_bytes <= 0) {
- printk("ERROR: OCC data length is zero\n");
- return -1;
- }
-
- for (b = 8; b < num_bytes; b = b + 8) {
- occ_getscomb(client, SCOM_OCC_SRAM_DATA, occ_data, b);
- }
-
- /* 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) {
- dev_dbg(&client->dev, "Starting occ update\n");
-
- 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 interface */
-
-static int print_occ_resp(char *buf, occ_response_t *p, int index)
-{
- int i = 0;
- int j = 0;
- sensor_data_block *block;
- occ_sensor *sensor;
- powr_sensor *powr;
-
- printk("occ hwmon all: index: %d\n", index);
- printk("------------- above are debug message, bellow is real output------------\n");
- sprintf(buf, "Dump all sensor data from OCC - Todo\n");
-
- return 0;
-#if 0
- sprintf(buf, "num_of_sensor_blocks: %u\n", p->data.num_of_sensor_blocks);
- for (i = 0; i < p->data.num_of_sensor_blocks; i++)
- {
- block = &p->data.blocks[i];
- if (block == NULL)
- continue;
-
- snprintf(buf, sizeof(block->sensor_type), "sensor_type: %s\n", block->sensor_type);
- sprintf(buf, "num_of_sensors: %u\n", block->num_of_sensors);
- sprintf(buf, "sensor_length: %u\n", block->sensor_length);
-
- if (block->sensor_length == 0)
- continue;
-
- if (strcmp(block->sensor_type, "TEMP") == 0)
- {
- for (j = 0; j < block->num_of_sensors; j++)
- {
- sensor = &block->sensor[j];
- if (sensor == NULL)
- continue;
-
- sprintf(buf, "sensor_id: %u\n", sensor->sensor_id);
- sprintf(buf, "value: %u\n", sensor->value);
- }
- }
-
-
- if (strcmp(block->sensor_type, "FREQ") == 0)
- {
- for (j = 0; j < block->num_of_sensors; j++)
- {
- sensor = &block->sensor[j];
- if (sensor == NULL)
- continue;
-
- sprintf(buf, "sensor_id: %u\n", sensor->sensor_id);
- sprintf(buf, "value: %u\n", sensor->value);
- }
-
- }
-
- if (strcmp(block->sensor_type, "POWR") == 0)
- {
- for (j = 0; j < block->num_of_sensors; j++)
- {
- powr = &block->powr[j];
- if (powr == NULL)
- continue;
-
- sprintf(buf, "sensor_id: %u\n", powr->sensor_id);
- sprintf(buf, "value: %u\n", powr->value);
- sprintf(buf, "update_tag: %u\n", powr->update_tag);
- sprintf(buf, "accumulator: %u\n", powr->accumulator);
- }
- }
- }
- return 0;
-#endif
-}
-
-/* sysfs attributes for hwmon */
-static ssize_t show_occ_data(struct device *dev, struct device_attribute *da, char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
- int n = attr->index;
- struct occ_drv_data *data = dev_get_drvdata(dev);
- int ret = 0;
-
- ret = occ_update_device(dev);
-
- if (ret != 0);
- {
- /* FIXME: to test fake data */
- printk("ERROR: cannot get occ sensor data\n");
- return ret;
- }
-
- return print_occ_resp(buf, data->occ_resp, n);
-}
-
-static ssize_t show_occ_temp(struct device *dev, struct device_attribute *da, char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
- int n = attr->index;
- 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\n");
- return ret;
- }
-
- 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->value;
- printk("temp%d sensor value\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 *dev, struct device_attribute *da, char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
- int n = attr->index;
- 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\n");
- return ret;
- }
-
- sensor = &data->occ_resp->data.blocks[data->occ_resp->temp_block_id].sensor[n - 1];
- val = sensor->sensor_id;
- printk("temp%d sensor id\n", n, val);
- printk("------------- above are debug message, bellow is real output------------\n");
-
- return sprintf(buf, "sensor id: %d\n", val);
-}
-
-
-static SENSOR_DEVICE_ATTR(all, S_IRUGO, show_occ_data, NULL, 0);
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_occ_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_occ_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_occ_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_occ_temp, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_occ_temp, NULL, 5);
-static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_occ_temp, NULL, 6);
-static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_occ_temp, NULL, 7);
-static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_occ_temp, NULL, 8);
-static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_occ_temp, NULL, 9);
-static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_occ_temp, NULL, 10);
-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(temp10_label, S_IRUGO, show_occ_temp_label, NULL, 10);
-
-static struct attribute *occ_attrs[] = {
- &sensor_dev_attr_all.dev_attr.attr,
- &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_temp10_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_temp10_label.dev_attr.attr,
-
- NULL
-};
-ATTRIBUTE_GROUPS(occ);
-
-/*-----------------------------------------------------------------------*/
-/* 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;
-
- data = devm_kzalloc(dev, sizeof(struct occ_drv_data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- data->client = client;
- data->occ_resp = &occ_resp;
- i2c_set_clientdata(client, data);
- mutex_init(&data->update_lock);
- data->sample_time = HZ;
-
- //if (i2cdev_check_addr(client->adapter, OCC_I2C_ADDR))
- // return -EBUSY;
-
- client->addr = OCC_I2C_ADDR;
-
- /* configure the driver */
- //dev_dbg(dev, "occ i2c register hwmon\n");
- printk("occ i2c register hwmon\n");
-
- data->hwmon_dev = hwmon_device_register_with_groups(dev, "occ",
- data, occ_groups);
- if (IS_ERR(data->hwmon_dev))
- return PTR_ERR(data->hwmon_dev);
-
- //dev_info(dev, "%s: sensor '%s'\n",
- // dev_name(data->hwmon_dev), client->name);
- printk("%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);
-
- occ_check_i2c_errors(client);
- //dev_info(dev, "occ i2c driver ready\n");
- printk("occ i2c driver ready\n");
-
- 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);
-
- hwmon_device_unregister(data->hwmon_dev);
- return 0;
-}
-
-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 */
-
-static const unsigned short normal_i2c[] = {0x50, 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)
-{
- 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
-
-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 at cn.ibm.com>");
-MODULE_DESCRIPTION("BMC OCC monitor driver");
-MODULE_LICENSE("GPL");
--
2.6.3
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