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serial: 8250: Split base port operations from universal driver 

Refactor base port operations into new file; 8250_port.c.

Legacy irq handling, RSA port support, port storage for universal
driver, driver definition, module parameters and linkage remain in
8250_core.c

The source file split and resulting modules is diagrammed below:

  8250_core.c ====>   8250_core.c __
              \                     \
               \                     +-- 8250.ko (alias 8250_core)
                \     8250_pnp.c  __/     (universal driver)
                 \
                  =>  8250_port.c __
                                    \
                                     +-- 8250_base.ko
                      8250_dma.c  __/     (port operations)

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2015-06-27 09:19:00 -04:00 committed by Greg Kroah-Hartman
parent e95044ba4f
commit b6830f6df8
5 changed files with 2925 additions and 2872 deletions
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11
drivers/tty/serial/8250/8250.h
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@ -211,3 +211,14 @@ static inline int ns16550a_goto_highspeed(struct uart_8250_port *up)
}
return 1;
}
static inline int serial_index(struct uart_port *port)
{
return port->minor - 64;
}
#if 0
#define DEBUG_INTR(fmt...) printk(fmt)
#else
#define DEBUG_INTR(fmt...) do { } while (0)
#endif

2878
drivers/tty/serial/8250/8250_core.c
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File diff suppressed because it is too large Load Diff

2898
drivers/tty/serial/8250/8250_port.c Normal file
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File diff suppressed because it is too large Load Diff

5
drivers/tty/serial/8250/Makefile
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@ -2,10 +2,11 @@
# Makefile for the 8250 serial device drivers.
#
obj-$(CONFIG_SERIAL_8250) += 8250.o
obj-$(CONFIG_SERIAL_8250) += 8250.o 8250_base.o
8250-y := 8250_core.o
8250-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o
8250-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o
8250_base-y := 8250_port.o
8250_base-$(CONFIG_SERIAL_8250_DMA) += 8250_dma.o
obj-$(CONFIG_SERIAL_8250_GSC) += 8250_gsc.o
obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o
obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o

5
include/linux/serial_8250.h
View File

@ -152,6 +152,11 @@ int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr);
void serial8250_tx_chars(struct uart_8250_port *up);
unsigned int serial8250_modem_status(struct uart_8250_port *up);
void serial8250_init_port(struct uart_8250_port *up);
void serial8250_set_defaults(struct uart_8250_port *up);
void serial8250_console_write(struct uart_8250_port *up, const char *s,
unsigned int count);
int serial8250_console_setup(struct uart_port *port, char *options, bool probe);
extern void serial8250_set_isa_configurator(void (*v)
(int port, struct uart_port *up,