serial.h
来自「this SRC packet is the headfiles that MI」· C头文件 代码 · 共 273 行
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273 行
/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1999 by Ralf Baechle * Copyright (C) 1999, 2000 Silicon Graphics, Inc. */#include <linux/config.h>#include <asm/bootinfo.h>#include <asm/jazz.h>/* * This assumes you have a 1.8432 MHz clock for your UART. * * It'd be nice if someone built a serial card with a 24.576 MHz * clock, since the 16550A is capable of handling a top speed of 1.5 * megabits/second; but this requires the faster clock. */#define BASE_BAUD ( 1843200 / 16 )#ifndef CONFIG_OLIVETTI_M700 /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know exactly which ones ... XXX */#define JAZZ_BASE_BAUD ( 8000000 / 16 ) /* ( 3072000 / 16) */#else/* but the M700 isn't such a strange beast */#define JAZZ_BASE_BAUD BASE_BAUD#endif/* Standard COM flags (except for COM4, because of the 8514 problem) */#ifdef CONFIG_SERIAL_DETECT_IRQ#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)#else#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF#endif#ifdef CONFIG_SERIAL_MANY_PORTS#define FOURPORT_FLAGS ASYNC_FOURPORT#define ACCENT_FLAGS 0#define BOCA_FLAGS 0#define HUB6_FLAGS 0#define RS_TABLE_SIZE 64#else#define RS_TABLE_SIZE#endif/* * The following define the access methods for the HUB6 card. All * access is through two ports for all 24 possible chips. The card is * selected through the high 2 bits, the port on that card with the * "middle" 3 bits, and the register on that port with the bottom * 3 bits. * * While the access port and interrupt is configurable, the default * port locations are 0x302 for the port control register, and 0x303 * for the data read/write register. Normally, the interrupt is at irq3 * but can be anything from 3 to 7 inclusive. Note that using 3 will * require disabling com2. */#define C_P(card,port) (((card)<<6|(port)<<3) + 1)#ifdef CONFIG_MIPS_JAZZ#define _JAZZ_SERIAL_INIT(int, base) \ { baud_base: JAZZ_BASE_BAUD, irq: int, flags: STD_COM_FLAGS, \ iomem_base: (u8 *) base, iomem_reg_shift: 0, \ io_type: SERIAL_IO_MEM }#define JAZZ_SERIAL_PORT_DEFNS \ _JAZZ_SERIAL_INIT(JAZZ_SERIAL1_IRQ, JAZZ_SERIAL1_BASE), \ _JAZZ_SERIAL_INIT(JAZZ_SERIAL2_IRQ, JAZZ_SERIAL2_BASE),#else#define JAZZ_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_MIPS_ATLAS#include <asm/mips-boards/atlas.h>#include <asm/mips-boards/atlasint.h>#define ATLAS_SERIAL_PORT_DEFNS \ /* UART CLK PORT IRQ FLAGS */ \ { 0, ATLAS_BASE_BAUD, ATLAS_UART_REGS_BASE, ATLASINT_UART, STD_COM_FLAGS }, /* ttyS0 */#else#define ATLAS_SERIAL_PORT_DEFNS#endif/* * Both Galileo boards have the same UART mappings. */#if defined (CONFIG_MIPS_EV96100) || defined (CONFIG_MIPS_EV64120)#include <asm/galileo-boards/ev96100.h>#include <asm/galileo-boards/ev96100int.h>#define EV96100_SERIAL_PORT_DEFNS \ { baud_base: EV96100_BASE_BAUD, port: EV96100_UART0_REGS_BASE, \ irq: EV96100INT_UART_0, flags: STD_COM_FLAGS, type: 0x3, \ iomem_base: EV96100_UART0_REGS_BASE }, \ { baud_base: EV96100_BASE_BAUD, port: EV96100_UART1_REGS_BASE, \ irq: EV96100INT_UART_0, flags: STD_COM_FLAGS, type: 0x3, \ iomem_base: EV96100_UART1_REGS_BASE },#else#define EV96100_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_MIPS_ITE8172#include <asm/it8172/it8172.h>#include <asm/it8172/it8172_int.h>#include <asm/it8712.h>#define ITE_SERIAL_PORT_DEFNS \ { baud_base: BASE_BAUD, port: (IT8172_PCI_IO_BASE + IT_UART_BASE), \ irq: IT8172_UART_IRQ, flags: STD_COM_FLAGS, type: 0x3 }, \ { baud_base: (24000000/(16*13)), port: (IT8172_PCI_IO_BASE + IT8712_UART1_PORT), \ irq: IT8172_SERIRQ_4, flags: STD_COM_FLAGS, type: 0x3 }, \ /* Smart Card Reader 0 */ \ { baud_base: BASE_BAUD, port: (IT8172_PCI_IO_BASE + IT_SCR0_BASE), \ irq: IT8172_SCR0_IRQ, flags: STD_COM_FLAGS, type: 0x3 }, \ /* Smart Card Reader 1 */ \ { baud_base: BASE_BAUD, port: (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \ irq: IT8172_SCR1_IRQ, flags: STD_COM_FLAGS, type: 0x3 },#else#define ITE_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_MIPS_IVR#include <asm/it8172/it8172.h>#include <asm/it8172/it8172_int.h>#define IVR_SERIAL_PORT_DEFNS \ { baud_base: BASE_BAUD, port: (IT8172_PCI_IO_BASE + IT_UART_BASE), \ irq: IT8172_UART_IRQ, flags: STD_COM_FLAGS, type: 0x3 }, \ /* Smart Card Reader 1 */ \ { baud_base: BASE_BAUD, port: (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \ irq: IT8172_SCR1_IRQ, flags: STD_COM_FLAGS, type: 0x3 },#else#define IVR_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_AU1000_UART#include <asm/au1000.h>#define AU1000_SERIAL_PORT_DEFNS \ { baud_base: 0, port: UART0_ADDR, irq: AU1000_UART0_INT, \ flags: STD_COM_FLAGS, type: 1 }, \ { baud_base: 0, port: UART1_ADDR, irq: AU1000_UART1_INT, \ flags: STD_COM_FLAGS, type: 1 }, \ { baud_base: 0, port: UART2_ADDR, irq: AU1000_UART2_INT, \ flags: STD_COM_FLAGS, type: 1 }, \ { baud_base: 0, port: UART3_ADDR, irq: AU1000_UART3_INT, \ flags: STD_COM_FLAGS, type: 1 },#else#define AU1000_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_HAVE_STD_PC_SERIAL_PORT#define STD_SERIAL_PORT_DEFNS \ /* UART CLK PORT IRQ FLAGS */ \ { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \ { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \ { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \ { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */#ifdef CONFIG_SERIAL_MANY_PORTS#define EXTRA_SERIAL_PORT_DEFNS \ { 0, BASE_BAUD, 0x1A0, 9, FOURPORT_FLAGS }, /* ttyS4 */ \ { 0, BASE_BAUD, 0x1A8, 9, FOURPORT_FLAGS }, /* ttyS5 */ \ { 0, BASE_BAUD, 0x1B0, 9, FOURPORT_FLAGS }, /* ttyS6 */ \ { 0, BASE_BAUD, 0x1B8, 9, FOURPORT_FLAGS }, /* ttyS7 */ \ { 0, BASE_BAUD, 0x2A0, 5, FOURPORT_FLAGS }, /* ttyS8 */ \ { 0, BASE_BAUD, 0x2A8, 5, FOURPORT_FLAGS }, /* ttyS9 */ \ { 0, BASE_BAUD, 0x2B0, 5, FOURPORT_FLAGS }, /* ttyS10 */ \ { 0, BASE_BAUD, 0x2B8, 5, FOURPORT_FLAGS }, /* ttyS11 */ \ { 0, BASE_BAUD, 0x330, 4, ACCENT_FLAGS }, /* ttyS12 */ \ { 0, BASE_BAUD, 0x338, 4, ACCENT_FLAGS }, /* ttyS13 */ \ { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS14 (spare) */ \ { 0, BASE_BAUD, 0x000, 0, 0 }, /* ttyS15 (spare) */ \ { 0, BASE_BAUD, 0x100, 12, BOCA_FLAGS }, /* ttyS16 */ \ { 0, BASE_BAUD, 0x108, 12, BOCA_FLAGS }, /* ttyS17 */ \ { 0, BASE_BAUD, 0x110, 12, BOCA_FLAGS }, /* ttyS18 */ \ { 0, BASE_BAUD, 0x118, 12, BOCA_FLAGS }, /* ttyS19 */ \ { 0, BASE_BAUD, 0x120, 12, BOCA_FLAGS }, /* ttyS20 */ \ { 0, BASE_BAUD, 0x128, 12, BOCA_FLAGS }, /* ttyS21 */ \ { 0, BASE_BAUD, 0x130, 12, BOCA_FLAGS }, /* ttyS22 */ \ { 0, BASE_BAUD, 0x138, 12, BOCA_FLAGS }, /* ttyS23 */ \ { 0, BASE_BAUD, 0x140, 12, BOCA_FLAGS }, /* ttyS24 */ \ { 0, BASE_BAUD, 0x148, 12, BOCA_FLAGS }, /* ttyS25 */ \ { 0, BASE_BAUD, 0x150, 12, BOCA_FLAGS }, /* ttyS26 */ \ { 0, BASE_BAUD, 0x158, 12, BOCA_FLAGS }, /* ttyS27 */ \ { 0, BASE_BAUD, 0x160, 12, BOCA_FLAGS }, /* ttyS28 */ \ { 0, BASE_BAUD, 0x168, 12, BOCA_FLAGS }, /* ttyS29 */ \ { 0, BASE_BAUD, 0x170, 12, BOCA_FLAGS }, /* ttyS30 */ \ { 0, BASE_BAUD, 0x178, 12, BOCA_FLAGS }, /* ttyS31 */#else /* CONFIG_SERIAL_MANY_PORTS */#define EXTRA_SERIAL_PORT_DEFNS#endif /* CONFIG_SERIAL_MANY_PORTS */#else /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */#define STD_SERIAL_PORT_DEFNS#define EXTRA_SERIAL_PORT_DEFNS#endif /* CONFIG_HAVE_STD_PC_SERIAL_PORTS *//* You can have up to four HUB6's in the system, but I've only * included two cards here for a total of twelve ports. */#if (defined(CONFIG_HUB6) && defined(CONFIG_SERIAL_MANY_PORTS))#define HUB6_SERIAL_PORT_DFNS \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,0) }, /* ttyS32 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,1) }, /* ttyS33 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,2) }, /* ttyS34 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,3) }, /* ttyS35 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,4) }, /* ttyS36 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(0,5) }, /* ttyS37 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,0) }, /* ttyS38 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,1) }, /* ttyS39 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,2) }, /* ttyS40 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,3) }, /* ttyS41 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,4) }, /* ttyS42 */ \ { 0, BASE_BAUD, 0x302, 3, HUB6_FLAGS, C_P(1,5) }, /* ttyS43 */#else#define HUB6_SERIAL_PORT_DFNS#endif#ifdef CONFIG_MCA#define MCA_SERIAL_PORT_DFNS \ { 0, BASE_BAUD, 0x3220, 3, STD_COM_FLAGS }, \ { 0, BASE_BAUD, 0x3228, 3, STD_COM_FLAGS }, \ { 0, BASE_BAUD, 0x4220, 3, STD_COM_FLAGS }, \ { 0, BASE_BAUD, 0x4228, 3, STD_COM_FLAGS }, \ { 0, BASE_BAUD, 0x5220, 3, STD_COM_FLAGS }, \ { 0, BASE_BAUD, 0x5228, 3, STD_COM_FLAGS },#else#define MCA_SERIAL_PORT_DFNS#endif#ifdef CONFIG_MOMENCO_OCELOT/* Ordinary NS16552 duart with a 20MHz crystal. */#define OCELOT_BASE_BAUD ( 20000000 / 16 )#define OCELOT_SERIAL1_IRQ 4#define OCELOT_SERIAL1_BASE 0xe0001020#define _OCELOT_SERIAL_INIT(int, base) \ { baud_base: OCELOT_BASE_BAUD, irq: int, flags: STD_COM_FLAGS, \ iomem_base: (u8 *) base, iomem_reg_shift: 2, \ io_type: SERIAL_IO_MEM }#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS \ _OCELOT_SERIAL_INIT(OCELOT_SERIAL1_IRQ, OCELOT_SERIAL1_BASE)#else#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS#endif#ifdef CONFIG_DDB5477#define DDB5477_SERIAL_PORT_DEFNS \ { baud_base: BASE_BAUD, irq: 12, flags: STD_COM_FLAGS, \ iomem_base: (u8*)0xbfa04200, iomem_reg_shift: 3, \ io_type: SERIAL_IO_MEM},\ { baud_base: BASE_BAUD, irq: 28, flags: STD_COM_FLAGS, \ iomem_base: (u8*)0xbfa04240, iomem_reg_shift: 3, \ io_type: SERIAL_IO_MEM},#else#define DDB5477_SERIAL_PORT_DEFNS#endif#define SERIAL_PORT_DFNS \ IVR_SERIAL_PORT_DEFNS \ ITE_SERIAL_PORT_DEFNS \ ATLAS_SERIAL_PORT_DEFNS \ EV96100_SERIAL_PORT_DEFNS \ JAZZ_SERIAL_PORT_DEFNS \ STD_SERIAL_PORT_DEFNS \ EXTRA_SERIAL_PORT_DEFNS \ HUB6_SERIAL_PORT_DFNS \ MOMENCO_OCELOT_SERIAL_PORT_DEFNS\ AU1000_SERIAL_PORT_DEFNS \ DDB5477_SERIAL_PORT_DEFNS⌨️ 快捷键说明
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