Hello,
I used SOCKET BT CF card with Zaurus SL-C860 with kernel 2.4.18.
It works with dtl1_cs kernel driver. Now I have new distribution
with kernel 2.6.11. This driver is not listed in menuconfig now.
What kernel driver (2.6.11) to use for this card?
I found, that file dtl1_cs.c is present in kernel tree.
-----
Card info:
product info: "Socket", "CF+ Personal Network Card"
manfid: 0x0104, 0x009f
function: 254 ((null))
-----
Best regards,
Pavel Ruzicka
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Hi,
probably you have revision G of this card and you use serial_cs.
This is not my case, I have revision F nokia based and like Marcel
says, I must use dtl1_cs.
Best regards,
Pavel Ruzicka
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Hi Brad,
> I had the same card and it would not work with 2.6 until I applied this
> patch. (posted to the mailing list about a month ago)
>
> Even then I couldn't get the rev f to do audio stuff though.
the revision F card is still Nokia based and thus the dtl1_cs must be
used.
Regards
Marcel
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--- 8250.c_2.6.11-org 2005-03-02 08:37:47.000000000 +0100
+++ 8250.c 2005-03-05 15:01:34.000000000 +0100
@@ -1604,7 +1604,7 @@
struct uart_8250_port *up = (struct uart_8250_port *)port;
unsigned char cval, fcr = 0;
unsigned long flags;
- unsigned int baud, quot;
+ unsigned int baud, quot, max_baud;
switch (termios->c_cflag & CSIZE) {
case CS5:
@@ -1636,9 +1636,29 @@
/*
* Ask the core to calculate the divisor for us.
*/
- baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
+ max_baud = (up->port.type == PORT_16C950 ? port->uartclk/4 : port->uartclk/16);
+ baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
quot = serial8250_get_divisor(port, baud);
+ /*
+ * 16C950 supports additional prescaler ratios between 1:16 and 1:4
+ * thus increasing max baud rate to uartclk/4. The following was taken
+ * from kernel 2.4 by Mathias Adam <[email protected]> to make the Socket
+ * Bluetooth CF Card work under 2.6.11.
+ * (Patch might have other side effects so be careful!)
+ */
+ if (up->port.type == PORT_16C950) {
+ unsigned int baud_base = port->uartclk/16;
+ if (baud <= port->uartclk/16)
+ serial_icr_write(up, UART_TCR, 0);
+ else if (baud <= port->uartclk/8) {
+ serial_icr_write(up, UART_TCR, 0x8);
+ } else if (baud <= port->uartclk/4) {
+ serial_icr_write(up, UART_TCR, 0x4);
+ } else
+ serial_icr_write(up, UART_TCR, 0);
+ }
+
/*
* Work around a bug in the Oxford Semiconductor 952 rev B
* chip which causes it to seriously miscalculate baud rates
Hi Pavel,
> I used SOCKET BT CF card with Zaurus SL-C860 with kernel 2.4.18.
> It works with dtl1_cs kernel driver. Now I have new distribution
> with kernel 2.6.11. This driver is not listed in menuconfig now.
>
> What kernel driver (2.6.11) to use for this card?
> I found, that file dtl1_cs.c is present in kernel tree.
it is still the same driver.
Regards
Marcel
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