diff options
| -rw-r--r-- | Documentation/admin-guide/devices.txt | 10 | ||||
| -rw-r--r-- | Documentation/driver-api/serial/cyclades_z.rst | 11 | ||||
| -rw-r--r-- | Documentation/driver-api/serial/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/process/magic-number.rst | 1 | ||||
| -rw-r--r-- | Documentation/translations/it_IT/process/magic-number.rst | 1 | ||||
| -rw-r--r-- | Documentation/translations/zh_CN/process/magic-number.rst | 1 | ||||
| -rw-r--r-- | Documentation/userspace-api/ioctl/ioctl-number.rst | 1 | ||||
| -rw-r--r-- | MAINTAINERS | 7 | ||||
| -rw-r--r-- | arch/powerpc/configs/ppc6xx_defconfig | 1 | ||||
| -rw-r--r-- | drivers/tty/Kconfig | 31 | ||||
| -rw-r--r-- | drivers/tty/Makefile | 1 | ||||
| -rw-r--r-- | drivers/tty/cyclades.c | 4119 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 5 | ||||
| -rw-r--r-- | include/linux/cyclades.h | 364 | ||||
| -rw-r--r-- | include/linux/pci_ids.h | 8 | ||||
| -rw-r--r-- | include/uapi/linux/cyclades.h | 494 | ||||
| -rw-r--r-- | include/uapi/linux/major.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/serial.h | 4 |
18 files changed, 5 insertions, 5057 deletions
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt index 63fd4e6a014b..b5bd9d46e031 100644 --- a/Documentation/admin-guide/devices.txt +++ b/Documentation/admin-guide/devices.txt @@ -477,11 +477,6 @@ 18 block Sanyo CD-ROM 0 = /dev/sjcd Sanyo CD-ROM - 19 char Cyclades serial card - 0 = /dev/ttyC0 First Cyclades port - ... - 31 = /dev/ttyC31 32nd Cyclades port - 19 block "Double" compressed disk 0 = /dev/double0 First compressed disk ... @@ -493,11 +488,6 @@ See the Double documentation for the meaning of the mirror devices. - 20 char Cyclades serial card - alternate devices - 0 = /dev/cub0 Callout device for ttyC0 - ... - 31 = /dev/cub31 Callout device for ttyC31 - 20 block Hitachi CD-ROM (under development) 0 = /dev/hitcd Hitachi CD-ROM diff --git a/Documentation/driver-api/serial/cyclades_z.rst b/Documentation/driver-api/serial/cyclades_z.rst deleted file mode 100644 index 532ff67e2f1c..000000000000 --- a/Documentation/driver-api/serial/cyclades_z.rst +++ /dev/null @@ -1,11 +0,0 @@ -================ -Cyclades-Z notes -================ - -The Cyclades-Z must have firmware loaded onto the card before it will -operate. This operation should be performed during system startup, - -The firmware, loader program and the latest device driver code are -available from Cyclades at - - ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/ diff --git a/Documentation/driver-api/serial/index.rst b/Documentation/driver-api/serial/index.rst index 33ad10d05b26..21351b8c95a4 100644 --- a/Documentation/driver-api/serial/index.rst +++ b/Documentation/driver-api/serial/index.rst @@ -17,7 +17,6 @@ Serial drivers .. toctree:: :maxdepth: 1 - cyclades_z moxa-smartio n_gsm rocket diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst index fa5a62f4150c..d4a30c09bd03 100644 --- a/Documentation/process/magic-number.rst +++ b/Documentation/process/magic-number.rst @@ -73,7 +73,6 @@ CMAGIC 0x0111 user ``include/linux/ MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h`` HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c`` APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c`` -CYCLADES_MAGIC 0x4359 cyclades_port ``include/linux/cyclades.h`` DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c`` DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c`` FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h`` diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst index 1af30f4228f2..0df2e7e32cd8 100644 --- a/Documentation/translations/it_IT/process/magic-number.rst +++ b/Documentation/translations/it_IT/process/magic-number.rst @@ -79,7 +79,6 @@ CMAGIC 0x0111 user ``include/linux/ MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h`` HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c`` APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c`` -CYCLADES_MAGIC 0x4359 cyclades_port ``include/linux/cyclades.h`` DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c`` DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c`` FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h`` diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst index 7bb9d4165ed3..82d62f6a4406 100644 --- a/Documentation/translations/zh_CN/process/magic-number.rst +++ b/Documentation/translations/zh_CN/process/magic-number.rst @@ -62,7 +62,6 @@ CMAGIC 0x0111 user ``include/linux/ MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h`` HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c`` APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c`` -CYCLADES_MAGIC 0x4359 cyclades_port ``include/linux/cyclades.h`` DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c`` DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c`` FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h`` diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst index 599bd4493944..0a7b408c0ec7 100644 --- a/Documentation/userspace-api/ioctl/ioctl-number.rst +++ b/Documentation/userspace-api/ioctl/ioctl-number.rst @@ -209,7 +209,6 @@ Code Seq# Include File Comments linux/fs.h, 'X' all fs/ocfs2/ocfs_fs.h conflict! 'X' 01 linux/pktcdvd.h conflict! -'Y' all linux/cyclades.h 'Z' 14-15 drivers/message/fusion/mptctl.h '[' 00-3F linux/usb/tmc.h USB Test and Measurement Devices <mailto:gregkh@linuxfoundation.org> diff --git a/MAINTAINERS b/MAINTAINERS index 363530db37ac..29f20a97d73d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4876,13 +4876,6 @@ S: Maintained W: http://www.armlinux.org.uk/ F: drivers/video/fbdev/cyber2000fb.* -CYCLADES ASYNC MUX DRIVER -S: Orphan -W: http://www.cyclades.com/ -F: drivers/tty/cyclades.c -F: include/linux/cyclades.h -F: include/uapi/linux/cyclades.h - CYCLADES PC300 DRIVER S: Orphan F: drivers/net/wan/pc300* diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index 6677ac0da45a..1fd9d1260f9e 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -595,7 +595,6 @@ CONFIG_GAMEPORT_FM801=m # CONFIG_LEGACY_PTYS is not set CONFIG_SERIAL_NONSTANDARD=y CONFIG_ROCKETPORT=m -CONFIG_CYCLADES=m CONFIG_SYNCLINK_GT=m CONFIG_NOZOMI=m CONFIG_N_HDLC=m diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index e15cd6b5bb99..397523a8095e 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -181,7 +181,7 @@ config SERIAL_NONSTANDARD help Say Y here if you have any non-standard serial boards -- boards which aren't supported using the standard "dumb" serial driver. - This includes intelligent serial boards such as Cyclades, + This includes intelligent serial boards such as Digiboards, etc. These are usually used for systems that need many serial ports because they serve many terminals or dial-in connections. @@ -207,35 +207,6 @@ config ROCKETPORT If you want to compile this driver into the kernel, say Y here. If you don't have a Comtrol RocketPort/RocketModem card installed, say N. -config CYCLADES - tristate "Cyclades async mux support" - depends on SERIAL_NONSTANDARD && (PCI || ISA) - select FW_LOADER - help - This driver supports Cyclades Z and Y multiserial boards. - You would need something like this to connect more than two modems to - your Linux box, for instance in order to become a dial-in server. - - For information about the Cyclades-Z card, read - <file:Documentation/driver-api/serial/cyclades_z.rst>. - - To compile this driver as a module, choose M here: the - module will be called cyclades. - - If you haven't heard about it, it's safe to say N. - -config CYZ_INTR - bool "Cyclades-Z interrupt mode operation" - depends on CYCLADES && PCI - help - The Cyclades-Z family of multiport cards allows 2 (two) driver op - modes: polling and interrupt. In polling mode, the driver will check - the status of the Cyclades-Z ports every certain amount of time - (which is called polling cycle and is configurable). In interrupt - mode, it will use an interrupt line (IRQ) in order to check the - status of the Cyclades-Z ports. The default op mode is polling. If - unsure, say N. - config MOXA_INTELLIO tristate "Moxa Intellio support" depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI) diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile index 730de6bf048b..94eb2bf75763 100644 --- a/drivers/tty/Makefile +++ b/drivers/tty/Makefile @@ -18,7 +18,6 @@ obj-$(CONFIG_SERIAL_DEV_BUS) += serdev/ # tty drivers obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o -obj-$(CONFIG_CYCLADES) += cyclades.o obj-$(CONFIG_ISI) += isicom.o obj-$(CONFIG_MOXA_INTELLIO) += moxa.o obj-$(CONFIG_MOXA_SMARTIO) += mxser.o diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c deleted file mode 100644 index 097266342e5e..000000000000 --- a/drivers/tty/cyclades.c +++ /dev/null @@ -1,4119 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#undef BLOCKMOVE -#define Z_WAKE -#undef Z_EXT_CHARS_IN_BUFFER - -/* - * This file contains the driver for the Cyclades async multiport - * serial boards. - * - * Initially written by Randolph Bentson <bentson@grieg.seaslug.org>. - * Modified and maintained by Marcio Saito <marcio@cyclades.com>. - * - * Copyright (C) 2007-2009 Jiri Slaby <jirislaby@gmail.com> - * - * Much of the design and some of the code came from serial.c - * which was copyright (C) 1991, 1992 Linus Torvalds. It was - * extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92, - * and then fixed as suggested by Michael K. Johnson 12/12/92. - * Converted to pci probing and cleaned up by Jiri Slaby. - * - */ - -#define CY_VERSION "2.6" - -/* If you need to install more boards than NR_CARDS, change the constant - in the definition below. No other change is necessary to support up to - eight boards. Beyond that you'll have to extend cy_isa_addresses. */ - -#define NR_CARDS 4 - -/* - If the total number of ports is larger than NR_PORTS, change this - constant in the definition below. No other change is necessary to - support more boards/ports. */ - -#define NR_PORTS 256 - -#define ZO_V1 0 -#define ZO_V2 1 -#define ZE_V1 2 - -#define SERIAL_PARANOIA_CHECK -#undef CY_DEBUG_OPEN -#undef CY_DEBUG_THROTTLE -#undef CY_DEBUG_OTHER -#undef CY_DEBUG_IO -#undef CY_DEBUG_COUNT -#undef CY_DEBUG_DTR -#undef CY_DEBUG_INTERRUPTS -#undef CY_16Y_HACK -#undef CY_ENABLE_MONITORING -#undef CY_PCI_DEBUG - -/* - * Include section - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/serial.h> -#include <linux/major.h> -#include <linux/string.h> -#include <linux/fcntl.h> -#include <linux/ptrace.h> -#include <linux/cyclades.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/bitops.h> -#include <linux/firmware.h> -#include <linux/device.h> -#include <linux/slab.h> - -#include <linux/io.h> -#include <linux/uaccess.h> - -#include <linux/kernel.h> -#include <linux/pci.h> - -#include <linux/stat.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> - -static void cy_send_xchar(struct tty_struct *tty, char ch); - -#ifndef SERIAL_XMIT_SIZE -#define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096)) -#endif - -/* firmware stuff */ -#define ZL_MAX_BLOCKS 16 -#define DRIVER_VERSION 0x02010203 -#define RAM_SIZE 0x80000 - -enum zblock_type { - ZBLOCK_PRG = 0, - ZBLOCK_FPGA = 1 -}; - -struct zfile_header { - char name[64]; - char date[32]; - char aux[32]; - u32 n_config; - u32 config_offset; - u32 n_blocks; - u32 block_offset; - u32 reserved[9]; -} __attribute__ ((packed)); - -struct zfile_config { - char name[64]; - u32 mailbox; - u32 function; - u32 n_blocks; - u32 block_list[ZL_MAX_BLOCKS]; -} __attribute__ ((packed)); - -struct zfile_block { - u32 type; - u32 file_offset; - u32 ram_offset; - u32 size; -} __attribute__ ((packed)); - -static struct tty_driver *cy_serial_driver; - -#ifdef CONFIG_ISA -/* This is the address lookup table. The driver will probe for - Cyclom-Y/ISA boards at all addresses in here. If you want the - driver to probe addresses at a different address, add it to - this table. If the driver is probing some other board and - causing problems, remove the offending address from this table. -*/ - -static unsigned int cy_isa_addresses[] = { - 0xD0000, - 0xD2000, - 0xD4000, - 0xD6000, - 0xD8000, - 0xDA000, - 0xDC000, - 0xDE000, - 0, 0, 0, 0, 0, 0, 0, 0 -}; - -#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses) - -static long maddr[NR_CARDS]; -static int irq[NR_CARDS]; - -module_param_hw_array(maddr, long, iomem, NULL, 0); -module_param_hw_array(irq, int, irq, NULL, 0); - -#endif /* CONFIG_ISA */ - -/* This is the per-card data structure containing address, irq, number of - channels, etc. This driver supports a maximum of NR_CARDS cards. -*/ -static struct cyclades_card cy_card[NR_CARDS]; - -static int cy_next_channel; /* next minor available */ - -/* - * This is used to look up the divisor speeds and the timeouts - * We're normally limited to 15 distinct baud rates. The extra - * are accessed via settings in info->port.flags. - * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, - * 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, - * HI VHI - * 20 - */ -static const int baud_table[] = { - 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, - 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000, - 230400, 0 -}; - -static const char baud_co_25[] = { /* 25 MHz clock option table */ - /* value => 00 01 02 03 04 */ - /* divide by 8 32 128 512 2048 */ - 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02, - 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; - -static const char baud_bpr_25[] = { /* 25 MHz baud rate period table */ - 0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3, - 0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15 -}; - -static const char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */ - /* value => 00 01 02 03 04 */ - /* divide by 8 32 128 512 2048 */ - 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, - 0x03, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00 -}; - -static const char baud_bpr_60[] = { /* 60 MHz baud rate period table (CD1400 J) */ - 0x00, 0x82, 0x21, 0xff, 0xdb, 0xc3, 0x92, 0x62, 0xc3, 0x62, - 0x41, 0xc3, 0x62, 0xc3, 0x62, 0xc3, 0x82, 0x62, 0x41, 0x32, - 0x21 -}; - -static const char baud_cor3[] = { /* receive threshold */ - 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, - 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07, - 0x07 -}; - -/* - * The Cyclades driver implements HW flow control as any serial driver. - * The cyclades_port structure member rflow and the vector rflow_thr - * allows us to take advantage of a special feature in the CD1400 to avoid - * data loss even when the system interrupt latency is too high. These flags - * are to be used only with very special applications. Setting these flags - * requires the use of a special cable (DTR and RTS reversed). In the new - * CD1400-based boards (rev. 6.00 or later), there is no need for special - * cables. - */ - -static const char rflow_thr[] = { /* rflow threshold */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, - 0x0a -}; - -/* The Cyclom-Ye has placed the sequential chips in non-sequential - * address order. This look-up table overcomes that problem. - */ -static const unsigned int cy_chip_offset[] = { 0x0000, - 0x0400, - 0x0800, - 0x0C00, - 0x0200, - 0x0600, - 0x0A00, - 0x0E00 -}; - -/* PCI related definitions */ - -#ifdef CONFIG_PCI -static const struct pci_device_id cy_pci_dev_id[] = { - /* PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) }, - /* PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) }, - /* 4Y PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) }, - /* 4Y PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) }, - /* 8Y PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) }, - /* 8Y PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) }, - /* Z PCI < 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) }, - /* Z PCI > 1Mb */ - { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) }, - { } /* end of table */ -}; -MODULE_DEVICE_TABLE(pci, cy_pci_dev_id); -#endif - -static void cy_start(struct tty_struct *); -static void cy_set_line_char(struct cyclades_port *, struct tty_struct *); -static int cyz_issue_cmd(struct cyclades_card *, __u32, __u8, __u32); -#ifdef CONFIG_ISA -static unsigned detect_isa_irq(void __iomem *); -#endif /* CONFIG_ISA */ - -#ifndef CONFIG_CYZ_INTR -static void cyz_poll(struct timer_list *); - -/* The Cyclades-Z polling cycle is defined by this variable */ -static long cyz_polling_cycle = CZ_DEF_POLL; - -static DEFINE_TIMER(cyz_timerlist, cyz_poll); - -#else /* CONFIG_CYZ_INTR */ -static void cyz_rx_restart(struct timer_list *); -#endif /* CONFIG_CYZ_INTR */ - -static void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val) -{ - struct cyclades_card *card = port->card; - - cy_writeb(port->u.cyy.base_addr + (reg << card->bus_index), val); -} - -static u8 cyy_readb(struct cyclades_port *port, u32 reg) -{ - struct cyclades_card *card = port->card; - - return readb(port->u.cyy.base_addr + (reg << card->bus_index)); -} - -static inline bool cy_is_Z(struct cyclades_card *card) -{ - return card->num_chips == (unsigned int)-1; -} - -static inline bool __cyz_fpga_loaded(struct RUNTIME_9060 __iomem *ctl_addr) -{ - return readl(&ctl_addr->init_ctrl) & (1 << 17); -} - -static inline bool cyz_fpga_loaded(struct cyclades_card *card) -{ - return __cyz_fpga_loaded(card->ctl_addr.p9060); -} - -static bool cyz_is_loaded(struct cyclades_card *card) -{ - struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS; - - return (card->hw_ver == ZO_V1 || cyz_fpga_loaded(card)) && - readl(&fw_id->signature) == ZFIRM_ID; -} - -static int serial_paranoia_check(struct cyclades_port *info, - const char *name, const char *routine) -{ -#ifdef SERIAL_PARANOIA_CHECK - if (!info) { - printk(KERN_WARNING "cyc Warning: null cyclades_port for (%s) " - "in %s\n", name, routine); - return 1; - } - - if (info->magic != CYCLADES_MAGIC) { - printk(KERN_WARNING "cyc Warning: bad magic number for serial " - "struct (%s) in %s\n", name, routine); - return 1; - } -#endif - return 0; -} - -/***********************************************************/ -/********* Start of block of Cyclom-Y specific code ********/ - -/* This routine waits up to 1000 micro-seconds for the previous - command to the Cirrus chip to complete and then issues the - new command. An error is returned if the previous command - didn't finish within the time limit. - - This function is only called from inside spinlock-protected code. - */ -static int __cyy_issue_cmd(void __iomem *base_addr, u8 cmd, int index) -{ - void __iomem *ccr = base_addr + (CyCCR << index); - unsigned int i; - - /* Check to see that the previous command has completed */ - for (i = 0; i < 100; i++) { - if (readb(ccr) == 0) - break; - udelay(10L); - } - /* if the CCR never cleared, the previous command - didn't finish within the "reasonable time" */ - if (i == 100) - return -1; - - /* Issue the new command */ - cy_writeb(ccr, cmd); - - return 0; -} - -static inline int cyy_issue_cmd(struct cyclades_port *port, u8 cmd) -{ - return __cyy_issue_cmd(port->u.cyy.base_addr, cmd, - port->card->bus_index); -} - -#ifdef CONFIG_ISA -/* ISA interrupt detection code */ -static unsigned detect_isa_irq(void __iomem *address) -{ - int irq; - unsigned long irqs, flags; - int save_xir, save_car; - int index = 0; /* IRQ probing is only for ISA */ - - /* forget possible initially masked and pending IRQ */ - irq = probe_irq_off(probe_irq_on()); - - /* Clear interrupts on the board first */ - cy_writeb(address + (Cy_ClrIntr << index), 0); - /* Cy_ClrIntr is 0x1800 */ - - irqs = probe_irq_on(); - /* Wait ... */ - msleep(5); - - /* Enable the Tx interrupts on the CD1400 */ - local_irq_save(flags); - cy_writeb(address + (CyCAR << index), 0); - __cyy_issue_cmd(address, CyCHAN_CTL | CyENB_XMTR, index); - - cy_writeb(address + (CyCAR << index), 0); - cy_writeb(address + (CySRER << index), - readb(address + (CySRER << index)) | CyTxRdy); - local_irq_restore(flags); - - /* Wait ... */ - msleep(5); - - /* Check which interrupt is in use */ - irq = probe_irq_off(irqs); - - /* Clean up */ - save_xir = (u_char) readb(address + (CyTIR << index)); - save_car = readb(address + (CyCAR << index)); - cy_writeb(address + (CyCAR << index), (save_xir & 0x3)); - cy_writeb(address + (CySRER << index), - readb(address + (CySRER << index)) & ~CyTxRdy); - cy_writeb(address + (CyTIR << index), (save_xir & 0x3f)); - cy_writeb(address + (CyCAR << index), (save_car)); - cy_writeb(address + (Cy_ClrIntr << index), 0); - /* Cy_ClrIntr is 0x1800 */ - - return (irq > 0) ? irq : 0; -} -#endif /* CONFIG_ISA */ - -static void cyy_chip_rx(struct cyclades_card *cinfo, int chip, - void __iomem *base_addr) -{ - struct cyclades_port *info; - struct tty_port *port; - int len, index = cinfo->bus_index; - u8 ivr, save_xir, channel, save_car, data, char_count; - -#ifdef CY_DEBUG_INTERRUPTS - printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip); -#endif - /* determine the channel & change to that context */ - save_xir = readb(base_addr + (CyRIR << index)); - channel = save_xir & CyIRChannel; - info = &cinfo->ports[channel + chip * 4]; - port = &info->port; - save_car = cyy_readb(info, CyCAR); - cyy_writeb(info, CyCAR, save_xir); - ivr = cyy_readb(info, CyRIVR) & CyIVRMask; - - /* there is an open port for this data */ - if (ivr == CyIVRRxEx) { /* exception */ - data = cyy_readb(info, CyRDSR); - - /* For statistics only */ - if (data & CyBREAK) - info->icount.brk++; - else if (data & CyFRAME) - info->icount.frame++; - else if (data & CyPARITY) - info->icount.parity++; - else if (data & CyOVERRUN) - info->icount.overrun++; - - if (data & info->ignore_status_mask) { - info->icount.rx++; - return; - } - if (tty_buffer_request_room(port, 1)) { - if (data & info->read_status_mask) { - if (data & CyBREAK) { - tty_insert_flip_char(port, - cyy_readb(info, CyRDSR), - TTY_BREAK); - info->icount.rx++; - if (port->flags & ASYNC_SAK) { - struct tty_struct *tty = - tty_port_tty_get(port); - if (tty) { - do_SAK(tty); - tty_kref_put(tty); - } - } - } else if (data & CyFRAME) { - tty_insert_flip_char(port, - cyy_readb(info, CyRDSR), - TTY_FRAME); - info->icount.rx++; - info->idle_stats.frame_errs++; - } else if (data & CyPARITY) { - /* Pieces of seven... */ - tty_insert_flip_char(port, - cyy_readb(info, CyRDSR), - TTY_PARITY); - info->icount.rx++; - info->idle_stats.parity_errs++; - } else if (data & CyOVERRUN) { - tty_insert_flip_char(port, 0, - TTY_OVERRUN); - info->icount.rx++; - /* If the flip buffer itself is - overflowing, we still lose - the next incoming character. - */ - tty_insert_flip_char(port, - cyy_readb(info, CyRDSR), - TTY_FRAME); - info->icount.rx++; - info->idle_stats.overruns++; - /* These two conditions may imply */ - /* a normal read should be done. */ - /* } else if(data & CyTIMEOUT) { */ - /* } else if(data & CySPECHAR) { */ - } else { - tty_insert_flip_char(port, 0, - TTY_NORMAL); - info->icount.rx++; - } - } else { - tty_insert_flip_char(port, 0, TTY_NORMAL); - info->icount.rx++; - } - } else { - /* there was a software buffer overrun and nothing - * could be done about it!!! */ - info->icount.buf_overrun++; - info->idle_stats.overruns++; - } - } else { /* normal character reception */ - /* load # chars available from the chip */ - char_count = cyy_readb(info, CyRDCR); - -#ifdef CY_ENABLE_MONITORING - ++info->mon.int_count; - info->mon.char_count += char_count; - if (char_count > info->mon.char_max) - info->mon.char_max = char_count; - info->mon.char_last = char_count; -#endif - len = tty_buffer_request_room(port, char_count); - while (len--) { - data = cyy_readb(info, CyRDSR); - tty_insert_flip_char(port, data, TTY_NORMAL); - info->idle_stats.recv_bytes++; - info->icount.rx++; -#ifdef CY_16Y_HACK - udelay(10L); -#endif - } - info->idle_stats.recv_idle = jiffies; - } - tty_schedule_flip(port); - - /* end of service */ - cyy_writeb(info, CyRIR, save_xir & 0x3f); - cyy_writeb(info, CyCAR, save_car); -} - -static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip, - void __iomem *base_addr) -{ - struct cyclades_port *info; - struct tty_struct *tty; - int char_count, index = cinfo->bus_index; - u8 save_xir, channel, save_car, outch; - - /* Since we only get here when the transmit buffer - is empty, we know we can always stuff a dozen - characters. */ -#ifdef CY_DEBUG_INTERRUPTS - printk(KERN_DEBUG "cyy_interrupt: xmit intr, chip %d\n", chip); -#endif - - /* determine the channel & change to that context */ - save_xir = readb(base_addr + (CyTIR << index)); - channel = save_xir & CyIRChannel; - save_car = readb(base_addr + (CyCAR << index)); - cy_writeb(base_addr + (CyCAR << index), save_xir); - - info = &cinfo->ports[channel + chip * 4]; - tty = tty_port_tty_get(&info->port); - if (tty == NULL) { - cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy); - goto end; - } - - /* load the on-chip space for outbound data */ - char_count = info->xmit_fifo_size; - - if (info->x_char) { /* send special char */ - outch = info->x_char; - cyy_writeb(info, CyTDR, outch); - char_count--; - info->icount.tx++; - info->x_char = 0; - } - - if (info->breakon || info->breakoff) { - if (info->breakon) { - cyy_writeb(info, CyTDR, 0); - cyy_writeb(info, CyTDR, 0x81); - info->breakon = 0; - char_count -= 2; - } - if (info->breakoff) { - cyy_writeb(info, CyTDR, 0); - cyy_writeb(info, CyTDR, 0x83); - info->breakoff = 0; - char_count -= 2; - } - } - - while (char_count-- > 0) { - if (!info->xmit_cnt) { - if (cyy_readb(info, CySRER) & CyTxMpty) { - cyy_writeb(info, CySRER, - cyy_readb(info, CySRER) & ~CyTxMpty); - } else { - cyy_writeb(info, CySRER, CyTxMpty | - (cyy_readb(info, CySRER) & ~CyTxRdy)); - } - goto done; - } - if (info->port.xmit_buf == NULL) { - cyy_writeb(info, CySRER, - cyy_readb(info, CySRER) & ~CyTxRdy); - goto done; - } - if (tty->stopped || tty->hw_stopped) { - cyy_writeb(info, CySRER, - cyy_readb(info, CySRER) & ~CyTxRdy); - goto done; - } - /* Because the Embedded Transmit Commands have been enabled, - * we must check to see if the escape character, NULL, is being - * sent. If it is, we must ensure that there is room for it to - * be doubled in the output stream. Therefore we no longer - * advance the pointer when the character is fetched, but - * rather wait until after the check for a NULL output - * character. This is necessary because there may not be room - * for the two chars needed to send a NULL.) - */ - outch = info->port.xmit_buf[info->xmit_tail]; - if (outch) { - info->xmit_cnt--; - info->xmit_tail = (info->xmit_tail + 1) & - (SERIAL_XMIT_SIZE - 1); - cyy_writeb(info, CyTDR, outch); - info->icount.tx++; - } else { - if (char_count > 1) { - info->xmit_cnt--; - info->xmit_tail = (info->xmit_tail + 1) & - (SERIAL_XMIT_SIZE - 1); - cyy_writeb(info, CyTDR, outch); - cyy_writeb(info, CyTDR, 0); - info->icount.tx++; - char_count--; - } - } - } - -done: - tty_wakeup(tty); - tty_kref_put(tty); -end: - /* end of service */ - cyy_writeb(info, CyTIR, save_xir & 0x3f); - cyy_writeb(info, CyCAR, save_car); -} - -static void cyy_chip_modem(struct cyclades_card *cinfo, int chip, - void __iomem *base_addr) -{ - struct cyclades_port *info; - struct tty_struct *tty; - int index = cinfo->bus_index; - u8 save_xir, channel, save_car, mdm_change, mdm_status; - - /* determine the channel & change to that context */ - save_xir = readb(base_addr + (CyMIR << index)); - channel = save_xir & CyIRChannel; - info = &cinfo->ports[channel + chip * 4]; - save_car = cyy_readb(info, CyCAR); - cyy_writeb(info, CyCAR, save_xir); - - mdm_change = cyy_readb(info, CyMISR); - mdm_status = cyy_readb(info, CyMSVR1); - - tty = tty_port_tty_get(&info->port); - if (!tty) - goto end; - - if (mdm_change & CyANY_DELTA) { - /* For statistics only */ - if (mdm_change & CyDCD) - info->icount.dcd++; - if (mdm_change & CyCTS) - info->icount.cts++; - if (mdm_change & CyDSR) - info->icount.dsr++; - if (mdm_change & CyRI) - info->icount.rng++; - |