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Somewhat working although a lot of hardcoding pl2303

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-07-18 21:36:00 +02:00
parent d556277751
commit 9edd681bbc
2 changed files with 23 additions and 37 deletions
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59
bus/usb/serial/pl2303.c
View file

@ -24,17 +24,6 @@
#include <grub/usb.h>
#include <grub/usbserial.h>
enum
{
GRUB_FTDI_MODEM_CTRL = 0x01,
GRUB_FTDI_FLOW_CTRL = 0x02,
GRUB_FTDI_SPEED_CTRL = 0x03,
GRUB_FTDI_DATA_CTRL = 0x04
};
#define GRUB_FTDI_MODEM_CTRL_DTRRTS 3
#define GRUB_FTDI_FLOW_CTRL_DTRRTS 3
/* Convert speed to divisor. */
static grub_uint32_t
get_divisor (unsigned int speed)
@ -68,41 +57,36 @@ get_divisor (unsigned int speed)
return 0;
}
#define GRUB_PL2303_REQUEST_CONFIG 1
static void
real_config (struct grub_serial_port *port)
{
grub_uint32_t divisor;
const grub_uint16_t parities[] = {
[GRUB_SERIAL_PARITY_NONE] = 0x0000,
[GRUB_SERIAL_PARITY_ODD] = 0x0100,
[GRUB_SERIAL_PARITY_EVEN] = 0x0200
};
const grub_uint16_t stop_bits[] = {
[GRUB_SERIAL_STOP_BITS_1] = 0x0000,
[GRUB_SERIAL_STOP_BITS_2] = 0x1000,
};
struct req20
{
char data[7];
} req20;
// if (port->configured)
if (port->configured)
return;
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_FTDI_MODEM_CTRL,
GRUB_FTDI_MODEM_CTRL_DTRRTS, 0, 0, 0);
GRUB_PL2303_REQUEST_CONFIG, 0, 0x61, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_FTDI_FLOW_CTRL,
GRUB_FTDI_FLOW_CTRL_DTRRTS, 0, 0, 0);
divisor = get_divisor (port->config.speed);
GRUB_PL2303_REQUEST_CONFIG, 1, 0, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_FTDI_SPEED_CTRL,
divisor & 0xffff, divisor >> 16, 0, 0);
GRUB_PL2303_REQUEST_CONFIG, 2, 0x44, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_FTDI_DATA_CTRL,
parities[port->config.parity]
| stop_bits[port->config.stop_bits]
| port->config.word_len, 0, 0, 0);
GRUB_PL2303_REQUEST_CONFIG, 8, 0, 0, 0);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_VENDOR_OUT,
GRUB_PL2303_REQUEST_CONFIG, 9, 0, 0, 0);
grub_memset (&req20, 0, sizeof (req20));
req20.data[6] = 8;
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
0x20, 0, 0, sizeof (req20), (char *) &req20);
grub_usb_control_msg (port->usbdev, GRUB_USB_REQTYPE_CLASS_INTERFACE_OUT,
0x22, 3, 0, 0, 0);
port->configured = 1;
}
@ -116,7 +100,8 @@ pl2303_hw_fetch (struct grub_serial_port *port)
real_config (port);
err = grub_usb_bulk_read (port->usbdev, port->in_endp->endp_addr, 1, &cc);
err = grub_usb_bulk_read_timeout (port->usbdev, port->in_endp->endp_addr,
1, &cc, 10);
if (err != GRUB_USB_ERR_NONE)
return -1;

1
bus/usb/usb.c
View file

@ -272,6 +272,7 @@ void grub_usb_device_attach (grub_usb_device_t dev)
case 0xff:
/* FIXME: don't load useless modules. */
grub_dl_load ("usbserial_ftdi");
grub_dl_load ("usbserial_pl2303");
break;
}
}