diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/i2c/busses/i2c-hydra.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/i2c/busses/i2c-hydra.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/ANDROID_3.4.5/drivers/i2c/busses/i2c-hydra.c b/ANDROID_3.4.5/drivers/i2c/busses/i2c-hydra.c deleted file mode 100644 index c527de17..00000000 --- a/ANDROID_3.4.5/drivers/i2c/busses/i2c-hydra.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - i2c Support for the Apple `Hydra' Mac I/O - - Copyright (c) 1999-2004 Geert Uytterhoeven <geert@linux-m68k.org> - - Based on i2c Support for Via Technologies 82C586B South Bridge - Copyright (c) 1998, 1999 Kyösti Mälkki <kmalkki@cc.hut.fi> - - 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/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/types.h> -#include <linux/i2c.h> -#include <linux/i2c-algo-bit.h> -#include <linux/init.h> -#include <linux/io.h> -#include <asm/hydra.h> - - -#define HYDRA_CPD_PD0 0x00000001 /* CachePD lines */ -#define HYDRA_CPD_PD1 0x00000002 -#define HYDRA_CPD_PD2 0x00000004 -#define HYDRA_CPD_PD3 0x00000008 - -#define HYDRA_SCLK HYDRA_CPD_PD0 -#define HYDRA_SDAT HYDRA_CPD_PD1 -#define HYDRA_SCLK_OE 0x00000010 -#define HYDRA_SDAT_OE 0x00000020 - -static inline void pdregw(void *data, u32 val) -{ - struct Hydra *hydra = (struct Hydra *)data; - writel(val, &hydra->CachePD); -} - -static inline u32 pdregr(void *data) -{ - struct Hydra *hydra = (struct Hydra *)data; - return readl(&hydra->CachePD); -} - -static void hydra_bit_setscl(void *data, int state) -{ - u32 val = pdregr(data); - if (state) - val &= ~HYDRA_SCLK_OE; - else { - val &= ~HYDRA_SCLK; - val |= HYDRA_SCLK_OE; - } - pdregw(data, val); -} - -static void hydra_bit_setsda(void *data, int state) -{ - u32 val = pdregr(data); - if (state) - val &= ~HYDRA_SDAT_OE; - else { - val &= ~HYDRA_SDAT; - val |= HYDRA_SDAT_OE; - } - pdregw(data, val); -} - -static int hydra_bit_getscl(void *data) -{ - return (pdregr(data) & HYDRA_SCLK) != 0; -} - -static int hydra_bit_getsda(void *data) -{ - return (pdregr(data) & HYDRA_SDAT) != 0; -} - -/* ------------------------------------------------------------------------ */ - -static struct i2c_algo_bit_data hydra_bit_data = { - .setsda = hydra_bit_setsda, - .setscl = hydra_bit_setscl, - .getsda = hydra_bit_getsda, - .getscl = hydra_bit_getscl, - .udelay = 5, - .timeout = HZ -}; - -static struct i2c_adapter hydra_adap = { - .owner = THIS_MODULE, - .name = "Hydra i2c", - .algo_data = &hydra_bit_data, -}; - -static DEFINE_PCI_DEVICE_TABLE(hydra_ids) = { - { PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_HYDRA) }, - { 0, } -}; - -MODULE_DEVICE_TABLE (pci, hydra_ids); - -static int __devinit hydra_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - unsigned long base = pci_resource_start(dev, 0); - int res; - - if (!request_mem_region(base+offsetof(struct Hydra, CachePD), 4, - hydra_adap.name)) - return -EBUSY; - - hydra_bit_data.data = pci_ioremap_bar(dev, 0); - if (hydra_bit_data.data == NULL) { - release_mem_region(base+offsetof(struct Hydra, CachePD), 4); - return -ENODEV; - } - - pdregw(hydra_bit_data.data, 0); /* clear SCLK_OE and SDAT_OE */ - hydra_adap.dev.parent = &dev->dev; - res = i2c_bit_add_bus(&hydra_adap); - if (res < 0) { - iounmap(hydra_bit_data.data); - release_mem_region(base+offsetof(struct Hydra, CachePD), 4); - return res; - } - return 0; -} - -static void __devexit hydra_remove(struct pci_dev *dev) -{ - pdregw(hydra_bit_data.data, 0); /* clear SCLK_OE and SDAT_OE */ - i2c_del_adapter(&hydra_adap); - iounmap(hydra_bit_data.data); - release_mem_region(pci_resource_start(dev, 0)+ - offsetof(struct Hydra, CachePD), 4); -} - - -static struct pci_driver hydra_driver = { - .name = "hydra_smbus", - .id_table = hydra_ids, - .probe = hydra_probe, - .remove = __devexit_p(hydra_remove), -}; - -static int __init i2c_hydra_init(void) -{ - return pci_register_driver(&hydra_driver); -} - - -static void __exit i2c_hydra_exit(void) -{ - pci_unregister_driver(&hydra_driver); -} - - - -MODULE_AUTHOR("Geert Uytterhoeven <geert@linux-m68k.org>"); -MODULE_DESCRIPTION("i2c for Apple Hydra Mac I/O"); -MODULE_LICENSE("GPL"); - -module_init(i2c_hydra_init); -module_exit(i2c_hydra_exit); - |