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-rw-r--r--include/linux/mfd/wm8350/comparator.h175
1 files changed, 175 insertions, 0 deletions
diff --git a/include/linux/mfd/wm8350/comparator.h b/include/linux/mfd/wm8350/comparator.h
new file mode 100644
index 00000000..54bc5d0f
--- /dev/null
+++ b/include/linux/mfd/wm8350/comparator.h
@@ -0,0 +1,175 @@
+/*
+ * comparator.h -- Comparator Aux ADC for Wolfson WM8350 PMIC
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_MFD_WM8350_COMPARATOR_H_
+#define __LINUX_MFD_WM8350_COMPARATOR_H_
+
+/*
+ * Registers
+ */
+
+#define WM8350_DIGITISER_CONTROL_1 0x90
+#define WM8350_DIGITISER_CONTROL_2 0x91
+#define WM8350_AUX1_READBACK 0x98
+#define WM8350_AUX2_READBACK 0x99
+#define WM8350_AUX3_READBACK 0x9A
+#define WM8350_AUX4_READBACK 0x9B
+#define WM8350_CHIP_TEMP_READBACK 0x9F
+#define WM8350_GENERIC_COMPARATOR_CONTROL 0xA3
+#define WM8350_GENERIC_COMPARATOR_1 0xA4
+#define WM8350_GENERIC_COMPARATOR_2 0xA5
+#define WM8350_GENERIC_COMPARATOR_3 0xA6
+#define WM8350_GENERIC_COMPARATOR_4 0xA7
+
+/*
+ * R144 (0x90) - Digitiser Control (1)
+ */
+#define WM8350_AUXADC_CTC 0x4000
+#define WM8350_AUXADC_POLL 0x2000
+#define WM8350_AUXADC_HIB_MODE 0x1000
+#define WM8350_AUXADC_SEL8 0x0080
+#define WM8350_AUXADC_SEL7 0x0040
+#define WM8350_AUXADC_SEL6 0x0020
+#define WM8350_AUXADC_SEL5 0x0010
+#define WM8350_AUXADC_SEL4 0x0008
+#define WM8350_AUXADC_SEL3 0x0004
+#define WM8350_AUXADC_SEL2 0x0002
+#define WM8350_AUXADC_SEL1 0x0001
+
+/*
+ * R145 (0x91) - Digitiser Control (2)
+ */
+#define WM8350_AUXADC_MASKMODE_MASK 0x3000
+#define WM8350_AUXADC_CRATE_MASK 0x0700
+#define WM8350_AUXADC_CAL 0x0004
+#define WM8350_AUX_RBMODE 0x0002
+#define WM8350_AUXADC_WAIT 0x0001
+
+/*
+ * R152 (0x98) - AUX1 Readback
+ */
+#define WM8350_AUXADC_SCALE1_MASK 0x6000
+#define WM8350_AUXADC_REF1 0x1000
+#define WM8350_AUXADC_DATA1_MASK 0x0FFF
+
+/*
+ * R153 (0x99) - AUX2 Readback
+ */
+#define WM8350_AUXADC_SCALE2_MASK 0x6000
+#define WM8350_AUXADC_REF2 0x1000
+#define WM8350_AUXADC_DATA2_MASK 0x0FFF
+
+/*
+ * R154 (0x9A) - AUX3 Readback
+ */
+#define WM8350_AUXADC_SCALE3_MASK 0x6000
+#define WM8350_AUXADC_REF3 0x1000
+#define WM8350_AUXADC_DATA3_MASK 0x0FFF
+
+/*
+ * R155 (0x9B) - AUX4 Readback
+ */
+#define WM8350_AUXADC_SCALE4_MASK 0x6000
+#define WM8350_AUXADC_REF4 0x1000
+#define WM8350_AUXADC_DATA4_MASK 0x0FFF
+
+/*
+ * R156 (0x9C) - USB Voltage Readback
+ */
+#define WM8350_AUXADC_DATA_USB_MASK 0x0FFF
+
+/*
+ * R157 (0x9D) - LINE Voltage Readback
+ */
+#define WM8350_AUXADC_DATA_LINE_MASK 0x0FFF
+
+/*
+ * R158 (0x9E) - BATT Voltage Readback
+ */
+#define WM8350_AUXADC_DATA_BATT_MASK 0x0FFF
+
+/*
+ * R159 (0x9F) - Chip Temp Readback
+ */
+#define WM8350_AUXADC_DATA_CHIPTEMP_MASK 0x0FFF
+
+/*
+ * R163 (0xA3) - Generic Comparator Control
+ */
+#define WM8350_DCMP4_ENA 0x0008
+#define WM8350_DCMP3_ENA 0x0004
+#define WM8350_DCMP2_ENA 0x0002
+#define WM8350_DCMP1_ENA 0x0001
+
+/*
+ * R164 (0xA4) - Generic comparator 1
+ */
+#define WM8350_DCMP1_SRCSEL_MASK 0xE000
+#define WM8350_DCMP1_GT 0x1000
+#define WM8350_DCMP1_THR_MASK 0x0FFF
+
+/*
+ * R165 (0xA5) - Generic comparator 2
+ */
+#define WM8350_DCMP2_SRCSEL_MASK 0xE000
+#define WM8350_DCMP2_GT 0x1000
+#define WM8350_DCMP2_THR_MASK 0x0FFF
+
+/*
+ * R166 (0xA6) - Generic comparator 3
+ */
+#define WM8350_DCMP3_SRCSEL_MASK 0xE000
+#define WM8350_DCMP3_GT 0x1000
+#define WM8350_DCMP3_THR_MASK 0x0FFF
+
+/*
+ * R167 (0xA7) - Generic comparator 4
+ */
+#define WM8350_DCMP4_SRCSEL_MASK 0xE000
+#define WM8350_DCMP4_GT 0x1000
+#define WM8350_DCMP4_THR_MASK 0x0FFF
+
+/*
+ * Interrupts.
+ */
+#define WM8350_IRQ_AUXADC_DATARDY 16
+#define WM8350_IRQ_AUXADC_DCOMP4 17
+#define WM8350_IRQ_AUXADC_DCOMP3 18
+#define WM8350_IRQ_AUXADC_DCOMP2 19
+#define WM8350_IRQ_AUXADC_DCOMP1 20
+#define WM8350_IRQ_SYS_HYST_COMP_FAIL 21
+#define WM8350_IRQ_SYS_CHIP_GT115 22
+#define WM8350_IRQ_SYS_CHIP_GT140 23
+
+/*
+ * USB/2, LINE & BATT = ((VRTC * 2) / 4095)) * 10e6 uV
+ * Where VRTC = 2.7 V
+ */
+#define WM8350_AUX_COEFF 1319
+
+#define WM8350_AUXADC_AUX1 0
+#define WM8350_AUXADC_AUX2 1
+#define WM8350_AUXADC_AUX3 2
+#define WM8350_AUXADC_AUX4 3
+#define WM8350_AUXADC_USB 4
+#define WM8350_AUXADC_LINE 5
+#define WM8350_AUXADC_BATT 6
+#define WM8350_AUXADC_TEMP 7
+
+struct wm8350;
+
+/*
+ * AUX ADC Readback
+ */
+int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale,
+ int vref);
+
+#endif