*/
 
 #include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 
 #define UNSET (-1U)
 
-#define DM1105_BOARD_NOAUTO            UNSET
-#define DM1105_BOARD_UNKNOWN           0
-#define DM1105_BOARD_DVBWORLD_2002     1
-#define DM1105_BOARD_DVBWORLD_2004     2
-#define DM1105_BOARD_AXESS_DM05                3
+#define DM1105_BOARD_NOAUTO                    UNSET
+#define DM1105_BOARD_UNKNOWN                   0
+#define DM1105_BOARD_DVBWORLD_2002             1
+#define DM1105_BOARD_DVBWORLD_2004             2
+#define DM1105_BOARD_AXESS_DM05                        3
+#define DM1105_BOARD_UNBRANDED_I2C_ON_GPIO     4
 
 /* ----------------------------------------------- */
 /*
 #define DM1105_MAX                             0x04
 
 #define DRIVER_NAME                            "dm1105"
+#define DM1105_I2C_GPIO_NAME                   "dm1105-gpio"
 
 #define DM1105_DMA_PACKETS                     47
 #define DM1105_DMA_PACKET_LENGTH               (128*4)
 #define DM1105_DMA_BYTES                       (128 * 4 * DM1105_DMA_PACKETS)
 
+/*  */
+#define GPIO08                                 (1 << 8)
+#define GPIO13                                 (1 << 13)
+#define GPIO14                                 (1 << 14)
+#define GPIO15                                 (1 << 15)
+#define GPIO16                                 (1 << 16)
+#define GPIO17                                 (1 << 17)
+#define GPIO_ALL                               0x03ffff
+
 /* GPIO's for LNB power control */
-#define DM1105_LNB_MASK                                0x00000000
-#define DM1105_LNB_OFF                         0x00020000
-#define DM1105_LNB_13V                         0x00010100
-#define DM1105_LNB_18V                         0x00000100
+#define DM1105_LNB_MASK                                (GPIO_ALL & ~(GPIO14 | GPIO13))
+#define DM1105_LNB_OFF                         GPIO17
+#define DM1105_LNB_13V                         (GPIO16 | GPIO08)
+#define DM1105_LNB_18V                         GPIO08
 
 /* GPIO's for LNB power control for Axess DM05 */
-#define DM05_LNB_MASK                          0x00000000
-#define DM05_LNB_OFF                           0x00020000/* actually 13v */
-#define DM05_LNB_13V                           0x00020000
-#define DM05_LNB_18V                           0x00030000
+#define DM05_LNB_MASK                          (GPIO_ALL & ~(GPIO14 | GPIO13))
+#define DM05_LNB_OFF                           GPIO17/* actually 13v */
+#define DM05_LNB_13V                           GPIO17
+#define DM05_LNB_18V                           (GPIO17 | GPIO16)
+
+/* GPIO's for LNB power control for unbranded with I2C on GPIO */
+#define UNBR_LNB_MASK                          (GPIO17 | GPIO16)
+#define UNBR_LNB_OFF                           0
+#define UNBR_LNB_13V                           GPIO17
+#define UNBR_LNB_18V                           (GPIO17 | GPIO16)
 
 static unsigned int card[]  = {[0 ... 3] = UNSET };
 module_param_array(card,  int, NULL, 0444);
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
 struct dm1105_board {
-       char                    *name;
+       char    *name;
+       struct  {
+               u32     mask, off, v13, v18;
+       } lnb;
+       u32     gpio_scl, gpio_sda;
 };
 
 struct dm1105_subid {
 static const struct dm1105_board dm1105_boards[] = {
        [DM1105_BOARD_UNKNOWN] = {
                .name           = "UNKNOWN/GENERIC",
+               .lnb = {
+                       .mask = DM1105_LNB_MASK,
+                       .off = DM1105_LNB_OFF,
+                       .v13 = DM1105_LNB_13V,
+                       .v18 = DM1105_LNB_18V,
+               },
        },
        [DM1105_BOARD_DVBWORLD_2002] = {
                .name           = "DVBWorld PCI 2002",
+               .lnb = {
+                       .mask = DM1105_LNB_MASK,
+                       .off = DM1105_LNB_OFF,
+                       .v13 = DM1105_LNB_13V,
+                       .v18 = DM1105_LNB_18V,
+               },
        },
        [DM1105_BOARD_DVBWORLD_2004] = {
                .name           = "DVBWorld PCI 2004",
+               .lnb = {
+                       .mask = DM1105_LNB_MASK,
+                       .off = DM1105_LNB_OFF,
+                       .v13 = DM1105_LNB_13V,
+                       .v18 = DM1105_LNB_18V,
+               },
        },
        [DM1105_BOARD_AXESS_DM05] = {
                .name           = "Axess/EasyTv DM05",
+               .lnb = {
+                       .mask = DM05_LNB_MASK,
+                       .off = DM05_LNB_OFF,
+                       .v13 = DM05_LNB_13V,
+                       .v18 = DM05_LNB_18V,
+               },
+       },
+       [DM1105_BOARD_UNBRANDED_I2C_ON_GPIO] = {
+               .name           = "Unbranded DM1105 with i2c on GPIOs",
+               .lnb = {
+                       .mask = UNBR_LNB_MASK,
+                       .off = UNBR_LNB_OFF,
+                       .v13 = UNBR_LNB_13V,
+                       .v18 = UNBR_LNB_18V,
+               },
+               .gpio_scl       = GPIO14,
+               .gpio_sda       = GPIO13,
        },
 };
 
 
        /* i2c */
        struct i2c_adapter i2c_adap;
+       struct i2c_adapter i2c_bb_adap;
+       struct i2c_algo_bit_data i2c_bit;
 
        /* irq */
        struct work_struct work;
 #define dm_setl(reg, bit)      dm_andorl((reg), (bit), (bit))
 #define dm_clearl(reg, bit)    dm_andorl((reg), (bit), 0)
 
+/* The chip has 18 GPIOs. In HOST mode GPIO's used as 15 bit address lines,
+ so we can use only 3 GPIO's from GPIO15 to GPIO17.
+ Here I don't check whether HOST is enebled as it is not implemented yet.
+ */
+static void dm1105_gpio_set(struct dm1105_dev *dev, u32 mask)
+{
+       if (mask & 0xfffc0000)
+               printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
+
+       if (mask & 0x0003ffff)
+               dm_setl(DM1105_GPIOVAL, mask & 0x0003ffff);
+
+}
+
+static void dm1105_gpio_clear(struct dm1105_dev *dev, u32 mask)
+{
+       if (mask & 0xfffc0000)
+               printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
+
+       if (mask & 0x0003ffff)
+               dm_clearl(DM1105_GPIOVAL, mask & 0x0003ffff);
+
+}
+
+static void dm1105_gpio_andor(struct dm1105_dev *dev, u32 mask, u32 val)
+{
+       if (mask & 0xfffc0000)
+               printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
+
+       if (mask & 0x0003ffff)
+               dm_andorl(DM1105_GPIOVAL, mask & 0x0003ffff, val);
+
+}
+
+static u32 dm1105_gpio_get(struct dm1105_dev *dev, u32 mask)
+{
+       if (mask & 0xfffc0000)
+               printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
+
+       if (mask & 0x0003ffff)
+               return dm_readl(DM1105_GPIOVAL) & mask & 0x0003ffff;
+
+       return 0;
+}
+
+static void dm1105_gpio_enable(struct dm1105_dev *dev, u32 mask, int asoutput)
+{
+       if (mask & 0xfffc0000)
+               printk(KERN_ERR "%s: Only 18 GPIO's are allowed\n", __func__);
+
+       if ((mask & 0x0003ffff) && asoutput)
+               dm_clearl(DM1105_GPIOCTR, mask & 0x0003ffff);
+       else if ((mask & 0x0003ffff) && !asoutput)
+               dm_setl(DM1105_GPIOCTR, mask & 0x0003ffff);
+
+}
+
+static void dm1105_setline(struct dm1105_dev *dev, u32 line, int state)
+{
+       if (state)
+               dm1105_gpio_enable(dev, line, 0);
+       else {
+               dm1105_gpio_enable(dev, line, 1);
+               dm1105_gpio_clear(dev, line);
+       }
+}
+
+static void dm1105_setsda(void *data, int state)
+{
+       struct dm1105_dev *dev = data;
+
+       dm1105_setline(dev, dm1105_boards[dev->boardnr].gpio_sda, state);
+}
+
+static void dm1105_setscl(void *data, int state)
+{
+       struct dm1105_dev *dev = data;
+
+       dm1105_setline(dev, dm1105_boards[dev->boardnr].gpio_scl, state);
+}
+
+static int dm1105_getsda(void *data)
+{
+       struct dm1105_dev *dev = data;
+
+       return dm1105_gpio_get(dev, dm1105_boards[dev->boardnr].gpio_sda)
+                                                                       ? 1 : 0;
+}
+
+static int dm1105_getscl(void *data)
+{
+       struct dm1105_dev *dev = data;
+
+       return dm1105_gpio_get(dev, dm1105_boards[dev->boardnr].gpio_scl)
+                                                                       ? 1 : 0;
+}
+
 static int dm1105_i2c_xfer(struct i2c_adapter *i2c_adap,
                            struct i2c_msg *msgs, int num)
 {
 static int dm1105_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 {
        struct dm1105_dev *dev = frontend_to_dm1105_dev(fe);
-       u32 lnb_mask, lnb_13v, lnb_18v, lnb_off;
 
-       switch (dev->boardnr) {
-       case DM1105_BOARD_AXESS_DM05:
-               lnb_mask = DM05_LNB_MASK;
-               lnb_off = DM05_LNB_OFF;
-               lnb_13v = DM05_LNB_13V;
-               lnb_18v = DM05_LNB_18V;
-               break;
-       case DM1105_BOARD_DVBWORLD_2002:
-       case DM1105_BOARD_DVBWORLD_2004:
-       default:
-               lnb_mask = DM1105_LNB_MASK;
-               lnb_off = DM1105_LNB_OFF;
-               lnb_13v = DM1105_LNB_13V;
-               lnb_18v = DM1105_LNB_18V;
-       }
-
-       dm_writel(DM1105_GPIOCTR, lnb_mask);
+       dm1105_gpio_enable(dev, dm1105_boards[dev->boardnr].lnb.mask, 1);
        if (voltage == SEC_VOLTAGE_18)
-               dm_writel(DM1105_GPIOVAL, lnb_18v);
+               dm1105_gpio_andor(dev,
+                               dm1105_boards[dev->boardnr].lnb.mask,
+                               dm1105_boards[dev->boardnr].lnb.v18);
        else if (voltage == SEC_VOLTAGE_13)
-               dm_writel(DM1105_GPIOVAL, lnb_13v);
+               dm1105_gpio_andor(dev,
+                               dm1105_boards[dev->boardnr].lnb.mask,
+                               dm1105_boards[dev->boardnr].lnb.v13);
        else
-               dm_writel(DM1105_GPIOVAL, lnb_off);
+               dm1105_gpio_andor(dev,
+                               dm1105_boards[dev->boardnr].lnb.mask,
+                               dm1105_boards[dev->boardnr].lnb.off);
 
        return 0;
 }
        int ret;
 
        switch (dev->boardnr) {
+       case DM1105_BOARD_UNBRANDED_I2C_ON_GPIO:
+               dm1105_gpio_enable(dev, GPIO15, 1);
+               dm1105_gpio_clear(dev, GPIO15);
+               msleep(100);
+               dm1105_gpio_set(dev, GPIO15);
+               msleep(200);
+               dev->fe = dvb_attach(
+                       stv0299_attach, &sharp_z0194a_config,
+                       &dev->i2c_bb_adap);
+               if (dev->fe) {
+                       dev->fe->ops.set_voltage = dm1105_set_voltage;
+                       dvb_attach(dvb_pll_attach, dev->fe, 0x60,
+                                       &dev->i2c_bb_adap, DVB_PLL_OPERA1);
+                       break;
+               }
+
+               dev->fe = dvb_attach(
+                       stv0288_attach, &earda_config,
+                       &dev->i2c_bb_adap);
+               if (dev->fe) {
+                       dev->fe->ops.set_voltage = dm1105_set_voltage;
+                       dvb_attach(stb6000_attach, dev->fe, 0x61,
+                                       &dev->i2c_bb_adap);
+                       break;
+               }
+
+               dev->fe = dvb_attach(
+                       si21xx_attach, &serit_config,
+                       &dev->i2c_bb_adap);
+               if (dev->fe)
+                       dev->fe->ops.set_voltage = dm1105_set_voltage;
+               break;
        case DM1105_BOARD_DVBWORLD_2004:
                dev->fe = dvb_attach(
                        cx24116_attach, &serit_sp2633_config,
        if (ret < 0)
                goto err_dm1105_hw_exit;
 
+       i2c_set_adapdata(&dev->i2c_bb_adap, dev);
+       strcpy(dev->i2c_bb_adap.name, DM1105_I2C_GPIO_NAME);
+       dev->i2c_bb_adap.owner = THIS_MODULE;
+       dev->i2c_bb_adap.dev.parent = &pdev->dev;
+       dev->i2c_bb_adap.algo_data = &dev->i2c_bit;
+       dev->i2c_bit.data = dev;
+       dev->i2c_bit.setsda = dm1105_setsda;
+       dev->i2c_bit.setscl = dm1105_setscl;
+       dev->i2c_bit.getsda = dm1105_getsda;
+       dev->i2c_bit.getscl = dm1105_getscl;
+       dev->i2c_bit.udelay = 10;
+       dev->i2c_bit.timeout = 10;
+
+       /* Raise SCL and SDA */
+       dm1105_setsda(dev, 1);
+       dm1105_setscl(dev, 1);
+
+       ret = i2c_bit_add_bus(&dev->i2c_bb_adap);
+       if (ret < 0)
+               goto err_i2c_del_adapter;
+
        /* dvb */
        ret = dvb_register_adapter(&dev->dvb_adapter, DRIVER_NAME,
                                        THIS_MODULE, &pdev->dev, adapter_nr);
        if (ret < 0)
-               goto err_i2c_del_adapter;
+               goto err_i2c_del_adapters;
 
        dvb_adapter = &dev->dvb_adapter;
 
        dvb_dmx_release(dvbdemux);
 err_dvb_unregister_adapter:
        dvb_unregister_adapter(dvb_adapter);
+err_i2c_del_adapters:
+       i2c_del_adapter(&dev->i2c_bb_adap);
 err_i2c_del_adapter:
        i2c_del_adapter(&dev->i2c_adap);
 err_dm1105_hw_exit: