diff --git a/kernel/busses/i2c-bit-voodoo3.c b/kernel/busses/i2c-bit-voodoo3.c deleted file mode 100644 index 3c9d9cc6..00000000 --- a/kernel/busses/i2c-bit-voodoo3.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - voodoo3.c - Part of lm_sensors, Linux kernel modules for hardware - monitoring - Copyright (c) 1998, 1999 Frodo Looijaard , - Philip Edelbrock , - Ralph Metzler , and - Mark D. Studebaker - - Based on code written by Ralph Metzler and - Simon Vogl - - 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. -*/ - -/* This interfaces to the I2C bus of the Voodoo3 to gain access to - the BT869 and possibly other I2C devices. */ - -#include -#include -#include -#include -#include -#include -#include "version.h" -#include - -/* 3DFX defines */ -#ifndef PCI_DEVICE_ID_3DFX_VOODOO3 -#define PCI_DEVICE_ID_3DFX_VOODOO3 0x05 -#endif -#ifndef PCI_DEVICE_ID_3DFX_BANSHEE -#define PCI_DEVICE_ID_3DFX_BANSHEE 0x03 -#endif - -/* the only registers we use */ -#define REG 0x78 -#define REG2 0x70 - -/* bit locations in the register */ -#define DDC_ENAB 0x00040000 -#define DDC_SCL_OUT 0x00080000 -#define DDC_SDA_OUT 0x00100000 -#define DDC_SCL_IN 0x00200000 -#define DDC_SDA_IN 0x00400000 -#define I2C_ENAB 0x00800000 -#define I2C_SCL_OUT 0x01000000 -#define I2C_SDA_OUT 0x02000000 -#define I2C_SCL_IN 0x04000000 -#define I2C_SDA_IN 0x08000000 - -/* initialization states */ -#define INIT2 0x2 -#define INIT3 0x4 - -/* delays */ -#define CYCLE_DELAY 10 -#define TIMEOUT 50 - -#ifdef MODULE -static -#else -extern -#endif -int __init i2c_voodoo3_init(void); -static int __init voodoo3_cleanup(void); -static int voodoo3_setup(void); -static void config_v3(struct pci_dev *dev); -static void voodoo3_inc(struct i2c_adapter *adapter); -static void voodoo3_dec(struct i2c_adapter *adapter); - -#ifdef MODULE -extern int init_module(void); -extern int cleanup_module(void); -#endif /* MODULE */ - - -static int __initdata voodoo3_initialized; -static unsigned char *mem; - -extern inline void outlong(unsigned int dat) -{ - *((unsigned int *) (mem + REG)) = dat; -} - -extern inline unsigned int readlong(void) -{ - return *((unsigned int *) (mem + REG)); -} - -/* The voo GPIO registers don't have individual masks for each bit - so we always have to read before writing. */ - -static void bit_vooi2c_setscl(void *data, int val) -{ - unsigned int r; - r = readlong(); - if(val) - r |= I2C_SCL_OUT; - else - r &= ~I2C_SCL_OUT; - outlong(r); -} - -static void bit_vooi2c_setsda(void *data, int val) -{ - unsigned int r; - r = readlong(); - if(val) - r |= I2C_SDA_OUT; - else - r &= ~I2C_SDA_OUT; - outlong(r); -} - -/* The GPIO pins are open drain, so the pins always remain outputs. - We rely on the i2c-algo-bit routines to set the pins high before - reading the input from other chips. */ - -static int bit_vooi2c_getscl(void *data) -{ - return (0 != (readlong() & I2C_SCL_IN)); -} - -static int bit_vooi2c_getsda(void *data) -{ - return (0 != (readlong() & I2C_SDA_IN)); -} - -static void bit_vooddc_setscl(void *data, int val) -{ - unsigned int r; - r = readlong(); - if(val) - r |= DDC_SCL_OUT; - else - r &= ~DDC_SCL_OUT; - outlong(r); -} - -static void bit_vooddc_setsda(void *data, int val) -{ - unsigned int r; - r = readlong(); - if(val) - r |= DDC_SDA_OUT; - else - r &= ~DDC_SDA_OUT; - outlong(r); -} - -static int bit_vooddc_getscl(void *data) -{ - return (0 != (readlong() & DDC_SCL_IN)); -} - -static int bit_vooddc_getsda(void *data) -{ - return (0 != (readlong() & DDC_SDA_IN)); -} - -static struct i2c_algo_bit_data voo_i2c_bit_data = { - NULL, - bit_vooi2c_setsda, - bit_vooi2c_setscl, - bit_vooi2c_getsda, - bit_vooi2c_getscl, - CYCLE_DELAY, CYCLE_DELAY, TIMEOUT -}; - -static struct i2c_adapter voodoo3_i2c_adapter = { - "I2C Voodoo3/Banshee adapter", - I2C_HW_B_VOO, - NULL, - &voo_i2c_bit_data, - voodoo3_inc, - voodoo3_dec, - NULL, - NULL, -}; - -static struct i2c_algo_bit_data voo_ddc_bit_data = { - NULL, - bit_vooddc_setsda, - bit_vooddc_setscl, - bit_vooddc_getsda, - bit_vooddc_getscl, - CYCLE_DELAY, CYCLE_DELAY, TIMEOUT -}; - -static struct i2c_adapter voodoo3_ddc_adapter = { - "DDC Voodoo3/Banshee adapter", - I2C_HW_B_VOO, - NULL, - &voo_ddc_bit_data, - voodoo3_inc, - voodoo3_dec, - NULL, - NULL, -}; - -/* Configures the chip */ - -void config_v3(struct pci_dev *dev) -{ - unsigned int cadr; - - /* map Voodoo3 memory */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,13) - cadr = dev->resource[0].start; -#else - cadr = dev->base_address[0]; -#endif - cadr &= PCI_BASE_ADDRESS_MEM_MASK; - mem = ioremap_nocache(cadr, 0x1000); - - *((unsigned int *) (mem + REG2)) = 0x8160; - *((unsigned int *) (mem + REG)) = 0xcffc0020; - printk("i2c-voodoo3: Using Banshee/Voodoo3 at 0x%p\n", mem); -} - -/* Detect whether a Voodoo3 or a Banshee can be found, - and initialize it. */ -static int voodoo3_setup(void) -{ - struct pci_dev *dev; - int v3_num; - - v3_num = 0; - - dev = NULL; - do { - if ((dev = pci_find_device(PCI_VENDOR_ID_3DFX, - PCI_DEVICE_ID_3DFX_VOODOO3, - dev))) { - if (!v3_num) - config_v3(dev); - v3_num++; - } - } while (dev); - - dev = NULL; - do { - if ((dev = pci_find_device(PCI_VENDOR_ID_3DFX, - PCI_DEVICE_ID_3DFX_BANSHEE, - dev))) { - if (!v3_num) - config_v3(dev); - v3_num++; - } - } while (dev); - - if (v3_num > 0) { - printk(KERN_INFO - "i2c-voodoo3: %d Banshee/Voodoo3 found.\n", v3_num); - if (v3_num > 1) - printk(KERN_INFO - "i2c-voodoo3: warning: only 1 supported.\n"); - return 0; - } else { - printk(KERN_INFO "i2c-voodoo3: No Voodoo3 found.\n"); - return -ENODEV; - } -} - -void voodoo3_inc(struct i2c_adapter *adapter) -{ - MOD_INC_USE_COUNT; -} - -void voodoo3_dec(struct i2c_adapter *adapter) -{ - MOD_DEC_USE_COUNT; -} - -int __init i2c_voodoo3_init(void) -{ - int res; - printk("i2c-voodoo3.o version %s (%s)\n", LM_VERSION, LM_DATE); - voodoo3_initialized = 0; - if ((res = voodoo3_setup())) { - printk - ("i2c-voodoo3.o: Voodoo3 not detected, module not inserted.\n"); - voodoo3_cleanup(); - return res; - } - if ((res = i2c_bit_add_bus(&voodoo3_i2c_adapter))) { - printk("i2c-voodoo3.o: I2C adapter registration failed\n"); - } else { - printk("i2c-i810.o: I810 I2C bus initialized\n"); - voodoo3_initialized |= INIT2; - } - if ((res = i2c_bit_add_bus(&voodoo3_ddc_adapter))) { - printk("i2c-voodoo3.o: DDC adapter registration failed\n"); - } else { - printk("i2c-i810.o: I810 DDC bus initialized\n"); - voodoo3_initialized |= INIT3; - } - if(!(voodoo3_initialized & (INIT2 | INIT3))) { - printk("i2c-i810.o: Both registrations failed, module not inserted\n"); - voodoo3_cleanup(); - return res; - } - return 0; -} - -int __init voodoo3_cleanup(void) -{ - int res; - - iounmap(mem); - if (voodoo3_initialized & INIT3) { - if ((res = i2c_bit_del_bus(&voodoo3_ddc_adapter))) { - printk - ("i2c-voodoo3.o: i2c_bit_del_bus failed, module not removed\n"); - return res; - } - } - if (voodoo3_initialized & INIT2) { - if ((res = i2c_bit_del_bus(&voodoo3_i2c_adapter))) { - printk - ("i2c-voodoo3.o: i2c_bit_del_bus failed, module not removed\n"); - return res; - } - } - return 0; -} - -EXPORT_NO_SYMBOLS; - -#ifdef MODULE - -MODULE_AUTHOR - ("Frodo Looijaard , Philip Edelbrock , Ralph Metzler , and Mark D. Studebaker "); -MODULE_DESCRIPTION("Voodoo3 I2C/SMBus driver"); - - -int init_module(void) -{ - return i2c_voodoo3_init(); -} - -int cleanup_module(void) -{ - return voodoo3_cleanup(); -} - -#endif /* MODULE */