Merge remote-tracking branch 'remotes/cminyard/tags/for-qemu-i2c-5' into staging

Minor changes to:

Add an SMBus config entry

Cleanup/simplify/document some I2C interfaces

# gpg: Signature made Thu 16 Jul 2020 18:46:55 BST
# gpg:                using RSA key FD0D5CE67CE0F59A6688268661F38C90919BFF81
# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@acm.org>" [unknown]
# gpg:                 aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FD0D 5CE6 7CE0 F59A 6688  2686 61F3 8C90 919B FF81

* remotes/cminyard/tags/for-qemu-i2c-5:
  hw/i2c: Document the I2C qdev helpers
  hw/i2c: Rename i2c_create_slave() as i2c_slave_create_simple()
  hw/i2c: Rename i2c_realize_and_unref() as i2c_slave_realize_and_unref()
  hw/i2c: Rename i2c_try_create_slave() as i2c_slave_new()
  hw/i2c/aspeed_i2c: Simplify aspeed_i2c_get_bus()
  hw/i2c/Kconfig: Add an entry for the SMBus

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

11 files changed, 60 insertions, 57 deletions

diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 6a3a345a6f..fcb1a7cd87 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -386,14 +386,14 @@ static void palmetto_bmc_i2c_init(AspeedMachineState *bmc)
 
     /* The palmetto platform expects a ds3231 RTC but a ds1338 is
      * enough to provide basic RTC features. Alarms will be missing */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 0), "ds1338", 0x68);
 
-    smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50,
+    smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 0), 0x50,
                           eeprom_buf);
 
     /* add a TMP423 temperature sensor */
-    dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2),
-                           "tmp423", 0x4c);
+    dev = DEVICE(i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 2),
+                                         "tmp423", 0x4c));
     object_property_set_int(OBJECT(dev), "temperature0", 31000, &error_abort);
     object_property_set_int(OBJECT(dev), "temperature1", 28000, &error_abort);
     object_property_set_int(OBJECT(dev), "temperature2", 20000, &error_abort);
@@ -405,16 +405,16 @@ static void ast2500_evb_i2c_init(AspeedMachineState *bmc)
     AspeedSoCState *soc = &bmc->soc;
     uint8_t *eeprom_buf = g_malloc0(8 * 1024);
 
-    smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50,
+    smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 3), 0x50,
                           eeprom_buf);
 
     /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7),
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
                      TYPE_TMP105, 0x4d);
 
     /* The AST2500 EVB does not have an RTC. Let's pretend that one is
      * plugged on the I2C bus header */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), "ds1338", 0x32);
 }
 
 static void ast2600_evb_i2c_init(AspeedMachineState *bmc)
@@ -429,36 +429,36 @@ static void romulus_bmc_i2c_init(AspeedMachineState *bmc)
 
     /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
      * good enough */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), "ds1338", 0x32);
 }
 
 static void swift_bmc_i2c_init(AspeedMachineState *bmc)
 {
     AspeedSoCState *soc = &bmc->soc;
 
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), "pca9552", 0x60);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "pca9552", 0x60);
 
     /* The swift board expects a TMP275 but a TMP105 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x48);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "tmp105", 0x48);
     /* The swift board expects a pca9551 but a pca9552 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "pca9552", 0x60);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "pca9552", 0x60);
 
     /* The swift board expects an Epson RX8900 RTC but a ds1338 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "ds1338", 0x32);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), "ds1338", 0x32);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), "pca9552", 0x60);
 
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp423", 0x4c);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "tmp423", 0x4c);
     /* The swift board expects a pca9539 but a pca9552 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "pca9552", 0x74);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "pca9552", 0x74);
 
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "tmp423", 0x4c);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 10), "tmp423", 0x4c);
     /* The swift board expects a pca9539 but a pca9552 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "pca9552",
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 10), "pca9552",
                      0x74);
 
     /* The swift board expects a TMP275 but a TMP105 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x48);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x4a);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 12), "tmp105", 0x48);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 12), "tmp105", 0x4a);
 }
 
 static void sonorapass_bmc_i2c_init(AspeedMachineState *bmc)
@@ -466,32 +466,32 @@ static void sonorapass_bmc_i2c_init(AspeedMachineState *bmc)
     AspeedSoCState *soc = &bmc->soc;
 
     /* bus 2 : */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x48);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x49);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 2), "tmp105", 0x48);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 2), "tmp105", 0x49);
     /* bus 2 : pca9546 @ 0x73 */
 
     /* bus 3 : pca9548 @ 0x70 */
 
     /* bus 4 : */
     uint8_t *eeprom4_54 = g_malloc0(8 * 1024);
-    smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), 0x54,
+    smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 4), 0x54,
                           eeprom4_54);
     /* PCA9539 @ 0x76, but PCA9552 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x76);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "pca9552", 0x76);
     /* PCA9539 @ 0x77, but PCA9552 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x77);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "pca9552", 0x77);
 
     /* bus 6 : */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x48);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x49);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 6), "tmp105", 0x48);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 6), "tmp105", 0x49);
     /* bus 6 : pca9546 @ 0x73 */
 
     /* bus 8 : */
     uint8_t *eeprom8_56 = g_malloc0(8 * 1024);
-    smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), 0x56,
+    smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 8), 0x56,
                           eeprom8_56);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x61);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), "pca9552", 0x60);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8), "pca9552", 0x61);
     /* bus 8 : adc128d818 @ 0x1d */
     /* bus 8 : adc128d818 @ 0x1f */
 
@@ -514,28 +514,30 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
     /* Bus 3: TODO bmp280@77 */
     /* Bus 3: TODO max31785@52 */
     /* Bus 3: TODO dps310@76 */
-    dev = i2c_try_create_slave(TYPE_PCA9552, 0x60);
+    dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60));
     qdev_prop_set_string(dev, "description", "pca1");
-    i2c_realize_and_unref(dev, aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3),
-                          &error_fatal);
+    i2c_slave_realize_and_unref(I2C_SLAVE(dev),
+                                aspeed_i2c_get_bus(&soc->i2c, 3),
+                                &error_fatal);
 
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "tmp423", 0x4c);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), "tmp423", 0x4c);
 
     /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), TYPE_TMP105,
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), TYPE_TMP105,
                      0x4a);
 
     /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
      * good enough */
-    i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 11), "ds1338", 0x32);
 
-    smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51,
+    smbus_eeprom_init_one(aspeed_i2c_get_bus(&soc->i2c, 11), 0x51,
                           eeprom_buf);
-    dev = i2c_try_create_slave(TYPE_PCA9552, 0x60);
+    dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60));
     qdev_prop_set_string(dev, "description", "pca0");
-    i2c_realize_and_unref(dev, aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11),
-                          &error_fatal);
+    i2c_slave_realize_and_unref(I2C_SLAVE(dev),
+                                aspeed_i2c_get_bus(&soc->i2c, 11),
+                                &error_fatal);
     /* Bus 11: TODO ucd90160@64 */
 }
 
diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c
index ff9a7c8cc6..c3b9780f35 100644
--- a/hw/arm/musicpal.c
+++ b/hw/arm/musicpal.c
@@ -1584,7 +1584,7 @@ static void musicpal_init(MachineState *machine)
     DeviceState *i2c_dev;
     DeviceState *lcd_dev;
     DeviceState *key_dev;
-    DeviceState *wm8750_dev;
+    I2CSlave *wm8750_dev;
     SysBusDevice *s;
     I2CBus *i2c;
     int i;
@@ -1687,7 +1687,7 @@ static void musicpal_init(MachineState *machine)
         qdev_connect_gpio_out(key_dev, i, qdev_get_gpio_in(dev, i + 15));
     }
 
-    wm8750_dev = i2c_create_slave(i2c, TYPE_WM8750, MP_WM_ADDR);
+    wm8750_dev = i2c_slave_create_simple(i2c, TYPE_WM8750, MP_WM_ADDR);
     dev = qdev_new(TYPE_MV88W8618_AUDIO);
     s = SYS_BUS_DEVICE(dev);
     object_property_set_link(OBJECT(dev), "wm8750", OBJECT(wm8750_dev),
diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
index 428a2a2c5a..e48092ca04 100644
--- a/hw/arm/nseries.c
+++ b/hw/arm/nseries.c
@@ -215,7 +215,7 @@ static void n8x0_i2c_setup(struct n800_s *s)
     I2CBus *i2c = omap_i2c_bus(s->mpu->i2c[0]);
 
     /* Attach a menelaus PM chip */
-    dev = i2c_create_slave(i2c, "twl92230", N8X0_MENELAUS_ADDR);
+    dev = DEVICE(i2c_slave_create_simple(i2c, "twl92230", N8X0_MENELAUS_ADDR));
     qdev_connect_gpio_out(dev, 3,
                           qdev_get_gpio_in(s->mpu->ih[0],
                                            OMAP_INT_24XX_SYS_NIRQ));
@@ -224,7 +224,7 @@ static void n8x0_i2c_setup(struct n800_s *s)
     qemu_register_powerdown_notifier(&n8x0_system_powerdown_notifier);
 
     /* Attach a TMP105 PM chip (A0 wired to ground) */
-    dev = i2c_create_slave(i2c, TYPE_TMP105, N8X0_TMP105_ADDR);
+    dev = DEVICE(i2c_slave_create_simple(i2c, TYPE_TMP105, N8X0_TMP105_ADDR));
     qdev_connect_gpio_out(dev, 0, tmp_irq);
 }
 
@@ -416,8 +416,8 @@ static void n810_kbd_setup(struct n800_s *s)
 
     /* Attach the LM8322 keyboard to the I2C bus,
      * should happen in n8x0_i2c_setup and s->kbd be initialised here.  */
-    s->kbd = i2c_create_slave(omap_i2c_bus(s->mpu->i2c[0]),
-                           "lm8323", N810_LM8323_ADDR);
+    s->kbd = DEVICE(i2c_slave_create_simple(omap_i2c_bus(s->mpu->i2c[0]),
+                                            "lm8323", N810_LM8323_ADDR));
     qdev_connect_gpio_out(s->kbd, 0, kbd_irq);
 }
 
diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c
index f104a33463..6203c4cfe0 100644
--- a/hw/arm/pxa2xx.c
+++ b/hw/arm/pxa2xx.c
@@ -1522,8 +1522,9 @@ PXA2xxI2CState *pxa2xx_i2c_init(hwaddr base,
     s = PXA2XX_I2C(i2c_dev);
     /* FIXME: Should the slave device really be on a separate bus?  */
     i2cbus = i2c_init_bus(dev, "dummy");
-    dev = i2c_create_slave(i2cbus, TYPE_PXA2XX_I2C_SLAVE, 0);
-    s->slave = PXA2XX_I2C_SLAVE(dev);
+    s->slave = PXA2XX_I2C_SLAVE(i2c_slave_create_simple(i2cbus,
+                                                        TYPE_PXA2XX_I2C_SLAVE,
+                                                        0));
     s->slave->host = s;
 
     return s;
diff --git a/hw/arm/realview.c b/hw/arm/realview.c
index 22e132058e..c1ff172b13 100644
--- a/hw/arm/realview.c
+++ b/hw/arm/realview.c
@@ -285,7 +285,7 @@ static void realview_init(MachineState *machine,
 
     dev = sysbus_create_simple(TYPE_VERSATILE_I2C, 0x10002000, NULL);
     i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
-    i2c_create_slave(i2c, "ds1338", 0x68);
+    i2c_slave_create_simple(i2c, "ds1338", 0x68);
 
     /* Memory map for RealView Emulation Baseboard:  */
     /* 0x10000000 System registers.  */
diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index f020aff974..7ac8254aa6 100644
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -787,7 +787,7 @@ static void spitz_i2c_setup(PXA2xxState *cpu)
     DeviceState *wm;
 
     /* Attach a WM8750 to the bus */
-    wm = i2c_create_slave(bus, TYPE_WM8750, 0);
+    wm = DEVICE(i2c_slave_create_simple(bus, TYPE_WM8750, 0));
 
     spitz_wm8750_addr(wm, 0, 0);
     qdev_connect_gpio_out(cpu->gpio, SPITZ_GPIO_WM,
@@ -802,7 +802,7 @@ static void spitz_i2c_setup(PXA2xxState *cpu)
 static void spitz_akita_i2c_setup(PXA2xxState *cpu)
 {
     /* Attach a Max7310 to Akita I2C bus.  */
-    i2c_create_slave(pxa2xx_i2c_bus(cpu->i2c[0]), "max7310",
+    i2c_slave_create_simple(pxa2xx_i2c_bus(cpu->i2c[0]), "max7310",
                      AKITA_MAX_ADDR);
 }
 
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index 7156fb3ece..28eb15c76c 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -1380,7 +1380,7 @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
                                    qdev_get_gpio_in(nvic, 8));
         i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
         if (board->peripherals & BP_OLED_I2C) {
-            i2c_create_slave(i2c, "ssd0303", 0x3d);
+            i2c_slave_create_simple(i2c, "ssd0303", 0x3d);
         }
     }
 
diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
index 383b3b22e2..e29566f7b3 100644
--- a/hw/arm/tosa.c
+++ b/hw/arm/tosa.c
@@ -234,7 +234,7 @@ static uint8_t tosa_dac_recv(I2CSlave *s)
 static void tosa_tg_init(PXA2xxState *cpu)
 {
     I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
-    i2c_create_slave(bus, TYPE_TOSA_DAC, DAC_BASE);
+    i2c_slave_create_simple(bus, TYPE_TOSA_DAC, DAC_BASE);
     ssi_create_slave(cpu->ssp[1], "tosa-ssp");
 }
 
diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c
index d09ea24ae2..9dc93182b6 100644
--- a/hw/arm/versatilepb.c
+++ b/hw/arm/versatilepb.c
@@ -317,7 +317,7 @@ static void versatile_init(MachineState *machine, int board_id)
 
     dev = sysbus_create_simple(TYPE_VERSATILE_I2C, 0x10002000, NULL);
     i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
-    i2c_create_slave(i2c, "ds1338", 0x68);
+    i2c_slave_create_simple(i2c, "ds1338", 0x68);
 
     /* Add PL041 AACI Interface to the LM4549 codec */
     pl041 = qdev_new("pl041");
diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index 762b068e90..1dc971c34f 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -642,7 +642,7 @@ static void vexpress_common_init(MachineState *machine)
 
     dev = sysbus_create_simple(TYPE_VERSATILE_I2C, map[VE_SERIALDVI], NULL);
     i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
-    i2c_create_slave(i2c, "sii9022", 0x39);
+    i2c_slave_create_simple(i2c, "sii9022", 0x39);
 
     sysbus_create_simple("pl031", map[VE_RTC], pic[4]); /* RTC */
 
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index e1f22f5868..9a9bbc653b 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -330,8 +330,8 @@ static void z2_init(MachineState *machine)
     type_register_static(&aer915_info);
     z2_lcd = ssi_create_slave(mpu->ssp[1], TYPE_ZIPIT_LCD);
     bus = pxa2xx_i2c_bus(mpu->i2c[0]);
-    i2c_create_slave(bus, TYPE_AER915, 0x55);
-    wm = i2c_create_slave(bus, TYPE_WM8750, 0x1b);
+    i2c_slave_create_simple(bus, TYPE_AER915, 0x55);
+    wm = DEVICE(i2c_slave_create_simple(bus, TYPE_WM8750, 0x1b));
     mpu->i2s->opaque = wm;
     mpu->i2s->codec_out = wm8750_dac_dat;
     mpu->i2s->codec_in = wm8750_adc_dat;