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author hap <happppp@users.noreply.github.com>2019-08-21 14:52:21 +0200
committer hap <happppp@users.noreply.github.com>2019-08-21 14:52:35 +0200
commit0617790932bf8d64fcc7c3a6fcdf0ca999523a8b (patch)
tree05484cd3c31cda8f066bb4bc3047f795b10c8c9d /src/devices/video/md4330b.h
parentb02df00ba0ebce74c7dce7c1732be03346be80c8 (diff)
add md4330/4332 lcd driver (nw)
Diffstat (limited to 'src/devices/video/md4330b.h')
-rw-r--r--src/devices/video/md4330b.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/src/devices/video/md4330b.h b/src/devices/video/md4330b.h
new file mode 100644
index 00000000000..d372f2b88de
--- /dev/null
+++ b/src/devices/video/md4330b.h
@@ -0,0 +1,91 @@
+// license:BSD-3-Clause
+// copyright-holders:hap
+/*
+
+ Mitel MD4330B / MD4332B LCD Driver
+
+*/
+
+#ifndef MAME_VIDEO_MD4330B_H
+#define MAME_VIDEO_MD4330B_H
+
+#pragma once
+
+// pinout reference
+
+/*
+ ____ ____ ____ ____
+ _T/C 1 |* \_/ | 40 VDD _T/C 1 |* \_/ | 40 VDD
+ DI 2 | | 39 CLK DI 2 | | 39 CLK
+ NC 3 | | 38 RST NC 3 | | 38 RST
+ NC 4 | | 37 DO Q1 4 | | 37 DO
+ Q1 5 | | 36 Q30 Q2 5 | | 36 Q32
+ Q2 6 | | 35 Q29 Q3 6 | | 35 Q31
+ Q3 7 | | 34 Q28 Q4 7 | | 34 Q30
+ Q4 8 | | 33 Q27 Q5 8 | | 33 Q29
+ Q5 9 | | 32 Q26 Q6 9 | | 32 Q28
+ Q6 10 | MD4330BC | 31 Q25 Q7 10 | MD4332BC | 31 Q27
+ Q7 11 | MD4330BE | 30 Q24 Q8 11 | MD4332BE | 30 Q26
+ Q8 12 | | 29 Q23 Q9 12 | | 29 Q25
+ Q9 13 | | 28 Q22 Q10 13 | | 28 Q24
+ Q10 14 | | 27 Q21 Q11 14 | | 27 Q23
+ Q11 15 | | 26 Q20 Q12 15 | | 26 Q22
+ Q12 16 | | 25 Q19 Q13 16 | | 25 Q21
+ Q13 17 | | 24 Q18 Q14 17 | | 24 Q20
+ Q14 18 | | 23 Q17 Q15 18 | | 23 Q19
+ Q15 19 | | 22 Q16 Q16 19 | | 22 Q18
+ VSS 20 |___________| 21 NC VSS 20 |___________| 21 Q17
+
+*/
+
+
+class md4330b_device : public device_t
+{
+public:
+ md4330b_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
+
+ // configuration helpers
+ auto write_q() { return m_write_q.bind(); }
+ auto write_do() { return m_write_do.bind(); }
+
+ DECLARE_WRITE_LINE_MEMBER(clk_w);
+ DECLARE_WRITE_LINE_MEMBER(tc_w) { m_tc = (state) ? 1 : 0; update_q(); }
+ DECLARE_WRITE_LINE_MEMBER(di_w) { m_di = (state) ? 1 : 0; }
+ DECLARE_WRITE_LINE_MEMBER(rst_w) { m_rst = (state) ? 1 : 0; }
+ DECLARE_READ_LINE_MEMBER(do_r) { return m_do; }
+
+protected:
+ md4330b_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u8 qmax);
+
+ // device-level overrides
+ virtual void device_start() override;
+
+ void update_q();
+
+ const u8 m_qmax; // number of Q pins
+ u32 m_shift;
+
+ // pin state
+ int m_clk;
+ int m_di;
+ int m_do;
+ int m_rst;
+ int m_tc;
+
+ // callbacks
+ devcb_write32 m_write_q;
+ devcb_write_line m_write_do;
+};
+
+
+class md4332b_device : public md4330b_device
+{
+public:
+ md4332b_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
+};
+
+
+DECLARE_DEVICE_TYPE(MD4330B, md4330b_device)
+DECLARE_DEVICE_TYPE(MD4332B, md4332b_device)
+
+#endif // MAME_VIDEO_MD4330B_H