cregit-Linux how code gets into the kernel

Release 4.7 drivers/tty/serial/8250/8250_acorn.c

/*
 *  linux/drivers/serial/acorn.c
 *
 *  Copyright (C) 1996-2003 Russell King.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/module.h>
#include <linux/types.h>
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/init.h>

#include <asm/io.h>
#include <asm/ecard.h>
#include <asm/string.h>

#include "8250.h"


#define MAX_PORTS	3


struct serial_card_type {
	
unsigned int	num_ports;
	
unsigned int	uartclk;
	
unsigned int	type;
	
unsigned int	offset[MAX_PORTS];
};


struct serial_card_info {
	
unsigned int	num_ports;
	
int		ports[MAX_PORTS];
	
void __iomem *vaddr;
};


static int serial_card_probe(struct expansion_card *ec, const struct ecard_id *id) { struct serial_card_info *info; struct serial_card_type *type = id->data; struct uart_8250_port uart; unsigned long bus_addr; unsigned int i; info = kzalloc(sizeof(struct serial_card_info), GFP_KERNEL); if (!info) return -ENOMEM; info->num_ports = type->num_ports; bus_addr = ecard_resource_start(ec, type->type); info->vaddr = ecardm_iomap(ec, type->type, 0, 0); if (!info->vaddr) { kfree(info); return -ENOMEM; } ecard_set_drvdata(ec, info); memset(&uart, 0, sizeof(struct uart_8250_port)); uart.port.irq = ec->irq; uart.port.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; uart.port.uartclk = type->uartclk; uart.port.iotype = UPIO_MEM; uart.port.regshift = 2; uart.port.dev = &ec->dev; for (i = 0; i < info->num_ports; i++) { uart.port.membase = info->vaddr + type->offset[i]; uart.port.mapbase = bus_addr + type->offset[i]; info->ports[i] = serial8250_register_8250_port(&uart); } return 0; }

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PersonTokensPropCommitsCommitProp
russell kingrussell king23087.79%562.50%
alan coxalan cox228.40%112.50%
amol ladamol lad93.44%112.50%
burman yanburman yan10.38%112.50%
Total262100.00%8100.00%


static void serial_card_remove(struct expansion_card *ec) { struct serial_card_info *info = ecard_get_drvdata(ec); int i; ecard_set_drvdata(ec, NULL); for (i = 0; i < info->num_ports; i++) if (info->ports[i] > 0) serial8250_unregister_port(info->ports[i]); kfree(info); }

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russell kingrussell king72100.00%2100.00%
Total72100.00%2100.00%

static struct serial_card_type atomwide_type = { .num_ports = 3, .uartclk = 7372800, .type = ECARD_RES_IOCSLOW, .offset = { 0x2800, 0x2400, 0x2000 }, }; static struct serial_card_type serport_type = { .num_ports = 2, .uartclk = 3686400, .type = ECARD_RES_IOCSLOW, .offset = { 0x2000, 0x2020 }, }; static const struct ecard_id serial_cids[] = { { MANU_ATOMWIDE, PROD_ATOMWIDE_3PSERIAL, &atomwide_type }, { MANU_SERPORT, PROD_SERPORT_DSPORT, &serport_type }, { 0xffff, 0xffff } }; static struct ecard_driver serial_card_driver = { .probe = serial_card_probe, .remove = serial_card_remove, .id_table = serial_cids, .drv = { .name = "8250_acorn", }, };
static int __init serial_card_init(void) { return ecard_register_driver(&serial_card_driver); }

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russell kingrussell king16100.00%1100.00%
Total16100.00%1100.00%


static void __exit serial_card_exit(void) { ecard_remove_driver(&serial_card_driver); }

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russell kingrussell king15100.00%1100.00%
Total15100.00%1100.00%

MODULE_AUTHOR("Russell King"); MODULE_DESCRIPTION("Acorn 8250-compatible serial port expansion card driver"); MODULE_LICENSE("GPL"); module_init(serial_card_init); module_exit(serial_card_exit);

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PersonTokensPropCommitsCommitProp
russell kingrussell king57093.90%562.50%
alan coxalan cox223.62%112.50%
amol ladamol lad142.31%112.50%
burman yanburman yan10.16%112.50%
Total607100.00%8100.00%
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