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path: root/drivers/video/matrox/i2c-matroxfb.c
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Diffstat (limited to 'drivers/video/matrox/i2c-matroxfb.c')
-rw-r--r--drivers/video/matrox/i2c-matroxfb.c238
1 files changed, 0 insertions, 238 deletions
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c
deleted file mode 100644
index 0fb280ead3dc..000000000000
--- a/drivers/video/matrox/i2c-matroxfb.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- *
- * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450.
- *
- * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
- *
- * Version: 1.64 2002/06/10
- *
- * See matroxfb_base.c for contributors.
- *
- */
-
-#include "matroxfb_base.h"
-#include "matroxfb_maven.h"
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/i2c-algo-bit.h>
-
-/* MGA-TVO I2C for G200, G400 */
-#define MAT_CLK 0x20
-#define MAT_DATA 0x10
-/* primary head DDC for Mystique(?), G100, G200, G400 */
-#define DDC1_CLK 0x08
-#define DDC1_DATA 0x02
-/* primary head DDC for Millennium, Millennium II */
-#define DDC1B_CLK 0x10
-#define DDC1B_DATA 0x04
-/* secondary head DDC for G400 */
-#define DDC2_CLK 0x04
-#define DDC2_DATA 0x01
-
-/******************************************************/
-
-struct matroxfb_dh_maven_info {
- struct i2c_bit_adapter maven;
- struct i2c_bit_adapter ddc1;
- struct i2c_bit_adapter ddc2;
-};
-
-static int matroxfb_read_gpio(struct matrox_fb_info* minfo) {
- unsigned long flags;
- int v;
-
- matroxfb_DAC_lock_irqsave(flags);
- v = matroxfb_DAC_in(minfo, DAC_XGENIODATA);
- matroxfb_DAC_unlock_irqrestore(flags);
- return v;
-}
-
-static void matroxfb_set_gpio(struct matrox_fb_info* minfo, int mask, int val) {
- unsigned long flags;
- int v;
-
- matroxfb_DAC_lock_irqsave(flags);
- v = (matroxfb_DAC_in(minfo, DAC_XGENIOCTRL) & mask) | val;
- matroxfb_DAC_out(minfo, DAC_XGENIOCTRL, v);
- /* We must reset GENIODATA very often... XFree plays with this register */
- matroxfb_DAC_out(minfo, DAC_XGENIODATA, 0x00);
- matroxfb_DAC_unlock_irqrestore(flags);
-}
-
-/* software I2C functions */
-static inline void matroxfb_i2c_set(struct matrox_fb_info* minfo, int mask, int state) {
- if (state)
- state = 0;
- else
- state = mask;
- matroxfb_set_gpio(minfo, ~mask, state);
-}
-
-static void matroxfb_gpio_setsda(void* data, int state) {
- struct i2c_bit_adapter* b = data;
- matroxfb_i2c_set(b->minfo, b->mask.data, state);
-}
-
-static void matroxfb_gpio_setscl(void* data, int state) {
- struct i2c_bit_adapter* b = data;
- matroxfb_i2c_set(b->minfo, b->mask.clock, state);
-}
-
-static int matroxfb_gpio_getsda(void* data) {
- struct i2c_bit_adapter* b = data;
- return (matroxfb_read_gpio(b->minfo) & b->mask.data) ? 1 : 0;
-}
-
-static int matroxfb_gpio_getscl(void* data) {
- struct i2c_bit_adapter* b = data;
- return (matroxfb_read_gpio(b->minfo) & b->mask.clock) ? 1 : 0;
-}
-
-static const struct i2c_algo_bit_data matrox_i2c_algo_template =
-{
- .setsda = matroxfb_gpio_setsda,
- .setscl = matroxfb_gpio_setscl,
- .getsda = matroxfb_gpio_getsda,
- .getscl = matroxfb_gpio_getscl,
- .udelay = 10,
- .timeout = 100,
-};
-
-static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
- unsigned int data, unsigned int clock, const char *name,
- int class)
-{
- int err;
-
- b->minfo = minfo;
- b->mask.data = data;
- b->mask.clock = clock;
- b->adapter.owner = THIS_MODULE;
- snprintf(b->adapter.name, sizeof(b->adapter.name), name,
- minfo->fbcon.node);
- i2c_set_adapdata(&b->adapter, b);
- b->adapter.class = class;
- b->adapter.algo_data = &b->bac;
- b->adapter.dev.parent = &minfo->pcidev->dev;
- b->bac = matrox_i2c_algo_template;
- b->bac.data = b;
- err = i2c_bit_add_bus(&b->adapter);
- b->initialized = !err;
- return err;
-}
-
-static void i2c_bit_bus_del(struct i2c_bit_adapter* b) {
- if (b->initialized) {
- i2c_del_adapter(&b->adapter);
- b->initialized = 0;
- }
-}
-
-static inline void i2c_maven_done(struct matroxfb_dh_maven_info* minfo2) {
- i2c_bit_bus_del(&minfo2->maven);
-}
-
-static inline void i2c_ddc1_done(struct matroxfb_dh_maven_info* minfo2) {
- i2c_bit_bus_del(&minfo2->ddc1);
-}
-
-static inline void i2c_ddc2_done(struct matroxfb_dh_maven_info* minfo2) {
- i2c_bit_bus_del(&minfo2->ddc2);
-}
-
-static void* i2c_matroxfb_probe(struct matrox_fb_info* minfo) {
- int err;
- unsigned long flags;
- struct matroxfb_dh_maven_info* m2info;
-
- m2info = kzalloc(sizeof(*m2info), GFP_KERNEL);
- if (!m2info)
- return NULL;
-
- matroxfb_DAC_lock_irqsave(flags);
- matroxfb_DAC_out(minfo, DAC_XGENIODATA, 0xFF);
- matroxfb_DAC_out(minfo, DAC_XGENIOCTRL, 0x00);
- matroxfb_DAC_unlock_irqrestore(flags);
-
- switch (minfo->chip) {
- case MGA_2064:
- case MGA_2164:
- err = i2c_bus_reg(&m2info->ddc1, minfo,
- DDC1B_DATA, DDC1B_CLK,
- "DDC:fb%u #0", I2C_CLASS_DDC);
- break;
- default:
- err = i2c_bus_reg(&m2info->ddc1, minfo,
- DDC1_DATA, DDC1_CLK,
- "DDC:fb%u #0", I2C_CLASS_DDC);
- break;
- }
- if (err)
- goto fail_ddc1;
- if (minfo->devflags.dualhead) {
- err = i2c_bus_reg(&m2info->ddc2, minfo,
- DDC2_DATA, DDC2_CLK,
- "DDC:fb%u #1", I2C_CLASS_DDC);
- if (err == -ENODEV) {
- printk(KERN_INFO "i2c-matroxfb: VGA->TV plug detected, DDC unavailable.\n");
- } else if (err)
- printk(KERN_INFO "i2c-matroxfb: Could not register secondary output i2c bus. Continuing anyway.\n");
- /* Register maven bus even on G450/G550 */
- err = i2c_bus_reg(&m2info->maven, minfo,
- MAT_DATA, MAT_CLK, "MAVEN:fb%u", 0);
- if (err)
- printk(KERN_INFO "i2c-matroxfb: Could not register Maven i2c bus. Continuing anyway.\n");
- else {
- struct i2c_board_info maven_info = {
- I2C_BOARD_INFO("maven", 0x1b),
- };
- unsigned short const addr_list[2] = {
- 0x1b, I2C_CLIENT_END
- };
-
- i2c_new_probed_device(&m2info->maven.adapter,
- &maven_info, addr_list, NULL);
- }
- }
- return m2info;
-fail_ddc1:;
- kfree(m2info);
- printk(KERN_ERR "i2c-matroxfb: Could not register primary adapter DDC bus.\n");
- return NULL;
-}
-
-static void i2c_matroxfb_remove(struct matrox_fb_info* minfo, void* data) {
- struct matroxfb_dh_maven_info* m2info = data;
-
- i2c_maven_done(m2info);
- i2c_ddc2_done(m2info);
- i2c_ddc1_done(m2info);
- kfree(m2info);
-}
-
-static struct matroxfb_driver i2c_matroxfb = {
- .node = LIST_HEAD_INIT(i2c_matroxfb.node),
- .name = "i2c-matroxfb",
- .probe = i2c_matroxfb_probe,
- .remove = i2c_matroxfb_remove,
-};
-
-static int __init i2c_matroxfb_init(void) {
- if (matroxfb_register_driver(&i2c_matroxfb)) {
- printk(KERN_ERR "i2c-matroxfb: failed to register driver\n");
- return -ENXIO;
- }
- return 0;
-}
-
-static void __exit i2c_matroxfb_exit(void) {
- matroxfb_unregister_driver(&i2c_matroxfb);
-}
-
-MODULE_AUTHOR("(c) 1999-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
-MODULE_DESCRIPTION("Support module providing I2C buses present on Matrox videocards");
-
-module_init(i2c_matroxfb_init);
-module_exit(i2c_matroxfb_exit);
-/* no __setup required */
-MODULE_LICENSE("GPL");
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