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author | Rene Buergel <rene.buergel@sohard.de> | 2012-09-18 07:00:41 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-18 16:23:47 (GMT) |
commit | cc183e2a5ebfdddc8d3498149cae6b4c40551a68 (patch) | |
tree | c1e07cdd398ac4f535da041ada1cb9f145a36357 | |
parent | 9fa5780beea1274d498a224822397100022da7d4 (diff) | |
download | linux-fsl-qoriq-cc183e2a5ebfdddc8d3498149cae6b4c40551a68.tar.xz |
USB: ezusb: add support for Cypress FX2LP
This Patch adds support for the newer Cypress FX2LP. It also adapts
three drivers currently using ezusb to the interface change. (whiteheat
and keyspan[_pda])
Signed-off-by: René Bürgel <rene.buergel@sohard.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/usb/serial/ezusb.c | 37 | ||||
-rw-r--r-- | drivers/usb/serial/keyspan.c | 5 | ||||
-rw-r--r-- | drivers/usb/serial/keyspan_pda.c | 5 | ||||
-rw-r--r-- | drivers/usb/serial/whiteheat.c | 9 | ||||
-rw-r--r-- | include/linux/usb/ezusb.h | 16 | ||||
-rw-r--r-- | include/linux/usb/serial.h | 4 |
6 files changed, 58 insertions, 18 deletions
diff --git a/drivers/usb/serial/ezusb.c b/drivers/usb/serial/ezusb.c index a9b5263..bc3076f 100644 --- a/drivers/usb/serial/ezusb.c +++ b/drivers/usb/serial/ezusb.c @@ -14,11 +14,25 @@ #include <linux/module.h> #include <linux/usb.h> -/* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ -#define CPUCS_REG 0x7F92 +struct ezusb_fx_type { + /* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */ + unsigned short cpucs_reg; + unsigned short max_internal_adress; +}; -/* Command for writing to internal memory */ +struct ezusb_fx_type ezusb_fx1 = { + .cpucs_reg = 0x7F92, + .max_internal_adress = 0x1B3F, +}; + +struct ezusb_fx_type ezusb_fx2 = { + .cpucs_reg = 0xE600, + .max_internal_adress = 0x3FFF, +}; + +/* Commands for writing to memory */ #define WRITE_INT_RAM 0xA0 +#define WRITE_EXT_RAM 0xA3 int ezusb_writememory(struct usb_device *dev, int address, unsigned char *data, int length, __u8 request) @@ -44,13 +58,24 @@ int ezusb_writememory(struct usb_device *dev, int address, } EXPORT_SYMBOL_GPL(ezusb_writememory); -int ezusb_set_reset(struct usb_device *dev, unsigned char reset_bit) +int ezusb_set_reset(struct usb_device *dev, unsigned short cpucs_reg, + unsigned char reset_bit) { - int response = ezusb_writememory(dev, CPUCS_REG, &reset_bit, 1, WRITE_INT_RAM); + int response = ezusb_writememory(dev, cpucs_reg, &reset_bit, 1, WRITE_INT_RAM); if (response < 0) dev_err(&dev->dev, "%s-%d failed: %d\n", __func__, reset_bit, response); return response; } -EXPORT_SYMBOL_GPL(ezusb_set_reset); +int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit) +{ + return ezusb_set_reset(dev, ezusb_fx1.cpucs_reg, reset_bit); +} +EXPORT_SYMBOL_GPL(ezusb_fx1_set_reset); + +int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit) +{ + return ezusb_set_reset(dev, ezusb_fx2.cpucs_reg, reset_bit); +} +EXPORT_SYMBOL_GPL(ezusb_fx2_set_reset); diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 566056c..4f25849 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -43,6 +43,7 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> +#include <linux/usb/ezusb.h> #include "keyspan.h" /* @@ -1245,7 +1246,7 @@ static int keyspan_fake_startup(struct usb_serial *serial) dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name); /* download the firmware image */ - response = ezusb_set_reset(serial->dev, 1); + response = ezusb_fx1_set_reset(serial->dev, 1); record = (const struct ihex_binrec *)fw->data; @@ -1264,7 +1265,7 @@ static int keyspan_fake_startup(struct usb_serial *serial) release_firmware(fw); /* bring device out of reset. Renumeration will occur in a moment and the new device will bind to the real driver */ - response = ezusb_set_reset(serial->dev, 0); + response = ezusb_fx1_set_reset(serial->dev, 0); /* we don't want this device to have a driver assigned to it. */ return 1; diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 124d4e5..39ab668 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -30,6 +30,7 @@ #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> +#include <linux/usb/ezusb.h> /* make a simple define to handle if we are compiling keyspan_pda or xircom support */ #if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE) @@ -678,7 +679,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) const struct firmware *fw; /* download the firmware here ... */ - response = ezusb_set_reset(serial->dev, 1); + response = ezusb_fx1_set_reset(serial->dev, 1); if (0) { ; } #ifdef KEYSPAN @@ -718,7 +719,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) release_firmware(fw); /* bring device out of reset. Renumeration will occur in a moment and the new device will bind to the real driver */ - response = ezusb_set_reset(serial->dev, 0); + response = ezusb_fx1_set_reset(serial->dev, 0); /* we want this device to fail to have a driver assigned to it. */ return 1; diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 80555fc..8172ea3 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -32,6 +32,7 @@ #include <linux/serial_reg.h> #include <linux/serial.h> #include <linux/usb/serial.h> +#include <linux/usb/ezusb.h> #include <linux/firmware.h> #include <linux/ihex.h> #include "whiteheat.h" /* WhiteHEAT specific commands */ @@ -211,7 +212,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial, goto out; } ret = 0; - response = ezusb_set_reset(serial->dev, 1); + response = ezusb_fx1_set_reset(serial->dev, 1); record = (const struct ihex_binrec *)loader_fw->data; while (record) { @@ -228,7 +229,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial, record = ihex_next_binrec(record); } - response = ezusb_set_reset(serial->dev, 0); + response = ezusb_fx1_set_reset(serial->dev, 0); record = (const struct ihex_binrec *)firmware_fw->data; while (record && be32_to_cpu(record->addr) < 0x1b40) @@ -248,7 +249,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial, ++record; } - response = ezusb_set_reset(serial->dev, 1); + response = ezusb_fx1_set_reset(serial->dev, 1); record = (const struct ihex_binrec *)firmware_fw->data; while (record && be32_to_cpu(record->addr) < 0x1b40) { @@ -266,7 +267,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial, ++record; } ret = 0; - response = ezusb_set_reset(serial->dev, 0); + response = ezusb_fx1_set_reset(serial->dev, 0); out: release_firmware(loader_fw); release_firmware(firmware_fw); diff --git a/include/linux/usb/ezusb.h b/include/linux/usb/ezusb.h new file mode 100644 index 0000000..fc618d8 --- /dev/null +++ b/include/linux/usb/ezusb.h @@ -0,0 +1,16 @@ +#ifndef __EZUSB_H +#define __EZUSB_H + + +extern int ezusb_writememory(struct usb_device *dev, int address, + unsigned char *data, int length, __u8 bRequest); + +extern int ezusb_fx1_set_reset(struct usb_device *dev, unsigned char reset_bit); +extern int ezusb_fx2_set_reset(struct usb_device *dev, unsigned char reset_bit); + +extern int ezusb_fx1_ihex_firmware_download(struct usb_device *dev, + const char *firmware_path); +extern int ezusb_fx2_ihex_firmware_download(struct usb_device *dev, + const char *firmware_path); + +#endif /* __EZUSB_H */ diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 5808713..ef9be7e 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -301,10 +301,6 @@ extern void usb_serial_port_softint(struct usb_serial_port *port); extern int usb_serial_suspend(struct usb_interface *intf, pm_message_t message); extern int usb_serial_resume(struct usb_interface *intf); -extern int ezusb_writememory(struct usb_device *dev, int address, - unsigned char *data, int length, __u8 bRequest); -extern int ezusb_set_reset(struct usb_device *dev, unsigned char reset_bit); - /* USB Serial console functions */ #ifdef CONFIG_USB_SERIAL_CONSOLE extern void usb_serial_console_init(int minor); |