diff options
Diffstat (limited to 'drivers/usb/serial/ti_usb_3410_5052.c')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 205 |
1 files changed, 36 insertions, 169 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 0afe5c71c17e..90979a1f5311 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -30,7 +30,7 @@ #include <linux/spinlock.h> #include <linux/ioctl.h> #include <linux/serial.h> -#include <linux/circ_buf.h> +#include <linux/kfifo.h> #include <linux/mutex.h> #include <linux/uaccess.h> #include <linux/usb.h> @@ -40,7 +40,7 @@ /* Defines */ -#define TI_DRIVER_VERSION "v0.9" +#define TI_DRIVER_VERSION "v0.10" #define TI_DRIVER_AUTHOR "Al Borchers <alborchers@steinerpoint.com>" #define TI_DRIVER_DESC "TI USB 3410/5052 Serial Driver" @@ -82,7 +82,7 @@ struct ti_port { spinlock_t tp_lock; int tp_read_urb_state; int tp_write_urb_in_use; - struct circ_buf *tp_write_buf; + struct kfifo write_fifo; }; struct ti_device { @@ -144,15 +144,6 @@ static int ti_write_byte(struct ti_device *tdev, unsigned long addr, static int ti_download_firmware(struct ti_device *tdev); -/* circular buffer */ -static struct circ_buf *ti_buf_alloc(void); -static void ti_buf_free(struct circ_buf *cb); -static void ti_buf_clear(struct circ_buf *cb); -static int ti_buf_data_avail(struct circ_buf *cb); -static int ti_buf_space_avail(struct circ_buf *cb); -static int ti_buf_put(struct circ_buf *cb, const char *buf, int count); -static int ti_buf_get(struct circ_buf *cb, char *buf, int count); - /* Data */ @@ -172,7 +163,7 @@ static unsigned int product_5052_count; /* the array dimension is the number of default entries plus */ /* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */ /* null entry */ -static struct usb_device_id ti_id_table_3410[10+TI_EXTRA_VID_PID_COUNT+1] = { +static struct usb_device_id ti_id_table_3410[13+TI_EXTRA_VID_PID_COUNT+1] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, @@ -180,6 +171,9 @@ static struct usb_device_id ti_id_table_3410[10+TI_EXTRA_VID_PID_COUNT+1] = { { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, { USB_DEVICE(IBM_VENDOR_ID, IBM_4543_PRODUCT_ID) }, { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, @@ -192,7 +186,7 @@ static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = { { USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) }, }; -static struct usb_device_id ti_id_table_combined[14+2*TI_EXTRA_VID_PID_COUNT+1] = { +static struct usb_device_id ti_id_table_combined[17+2*TI_EXTRA_VID_PID_COUNT+1] = { { USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) }, @@ -200,6 +194,9 @@ static struct usb_device_id ti_id_table_combined[14+2*TI_EXTRA_VID_PID_COUNT+1] { USB_DEVICE(MTS_VENDOR_ID, MTS_CDMA_PRODUCT_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_PRODUCT_ID) }, { USB_DEVICE(MTS_VENDOR_ID, MTS_EDGE_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234MU_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBA_PRODUCT_ID) }, + { USB_DEVICE(MTS_VENDOR_ID, MTS_MT9234ZBAOLD_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5052_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5152_BOOT_PRODUCT_ID) }, { USB_DEVICE(TI_VENDOR_ID, TI_5052_EEPROM_PRODUCT_ID) }, @@ -287,6 +284,8 @@ MODULE_FIRMWARE("ti_5052.fw"); MODULE_FIRMWARE("mts_cdma.fw"); MODULE_FIRMWARE("mts_gsm.fw"); MODULE_FIRMWARE("mts_edge.fw"); +MODULE_FIRMWARE("mts_mt9234mu.fw"); +MODULE_FIRMWARE("mts_mt9234zba.fw"); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); @@ -442,8 +441,8 @@ static int ti_startup(struct usb_serial *serial) tport->tp_closing_wait = closing_wait; init_waitqueue_head(&tport->tp_msr_wait); init_waitqueue_head(&tport->tp_write_wait); - tport->tp_write_buf = ti_buf_alloc(); - if (tport->tp_write_buf == NULL) { + if (kfifo_alloc(&tport->write_fifo, TI_WRITE_BUF_SIZE, + GFP_KERNEL)) { dev_err(&dev->dev, "%s - out of memory\n", __func__); kfree(tport); status = -ENOMEM; @@ -460,7 +459,7 @@ static int ti_startup(struct usb_serial *serial) free_tports: for (--i; i >= 0; --i) { tport = usb_get_serial_port_data(serial->port[i]); - ti_buf_free(tport->tp_write_buf); + kfifo_free(&tport->write_fifo); kfree(tport); usb_set_serial_port_data(serial->port[i], NULL); } @@ -482,7 +481,7 @@ static void ti_release(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { tport = usb_get_serial_port_data(serial->port[i]); if (tport) { - ti_buf_free(tport->tp_write_buf); + kfifo_free(&tport->write_fifo); kfree(tport); } } @@ -693,7 +692,6 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count) { struct ti_port *tport = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); @@ -705,10 +703,8 @@ static int ti_write(struct tty_struct *tty, struct usb_serial_port *port, if (tport == NULL || !tport->tp_is_open) return -ENODEV; - spin_lock_irqsave(&tport->tp_lock, flags); - count = ti_buf_put(tport->tp_write_buf, data, count); - spin_unlock_irqrestore(&tport->tp_lock, flags); - + count = kfifo_in_locked(&tport->write_fifo, data, count, + &tport->tp_lock); ti_send(tport); return count; @@ -728,7 +724,7 @@ static int ti_write_room(struct tty_struct *tty) return 0; spin_lock_irqsave(&tport->tp_lock, flags); - room = ti_buf_space_avail(tport->tp_write_buf); + room = kfifo_avail(&tport->write_fifo); spin_unlock_irqrestore(&tport->tp_lock, flags); dbg("%s - returns %d", __func__, room); @@ -749,7 +745,7 @@ static int ti_chars_in_buffer(struct tty_struct *tty) return 0; spin_lock_irqsave(&tport->tp_lock, flags); - chars = ti_buf_data_avail(tport->tp_write_buf); + chars = kfifo_len(&tport->write_fifo); spin_unlock_irqrestore(&tport->tp_lock, flags); dbg("%s - returns %d", __func__, chars); @@ -1301,7 +1297,7 @@ static void ti_send(struct ti_port *tport) if (tport->tp_write_urb_in_use) goto unlock; - count = ti_buf_get(tport->tp_write_buf, + count = kfifo_out(&tport->write_fifo, port->write_urb->transfer_buffer, port->bulk_out_size); @@ -1496,7 +1492,7 @@ static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) add_wait_queue(&tport->tp_write_wait, &wait); for (;;) { set_current_state(TASK_INTERRUPTIBLE); - if (ti_buf_data_avail(tport->tp_write_buf) == 0 + if (kfifo_len(&tport->write_fifo) == 0 || timeout == 0 || signal_pending(current) || tdev->td_urb_error || port->serial->disconnected) /* disconnect */ @@ -1510,7 +1506,7 @@ static void ti_drain(struct ti_port *tport, unsigned long timeout, int flush) /* flush any remaining data in the buffer */ if (flush) - ti_buf_clear(tport->tp_write_buf); + kfifo_reset_out(&tport->write_fifo); spin_unlock_irq(&tport->tp_lock); @@ -1687,6 +1683,7 @@ static int ti_download_firmware(struct ti_device *tdev) const struct firmware *fw_p; char buf[32]; + dbg("%s\n", __func__); /* try ID specific firmware first, then try generic firmware */ sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor, dev->descriptor.idProduct); @@ -1703,7 +1700,15 @@ static int ti_download_firmware(struct ti_device *tdev) case MTS_EDGE_PRODUCT_ID: strcpy(buf, "mts_edge.fw"); break; - } + case MTS_MT9234MU_PRODUCT_ID: + strcpy(buf, "mts_mt9234mu.fw"); + break; + case MTS_MT9234ZBA_PRODUCT_ID: + strcpy(buf, "mts_mt9234zba.fw"); + break; + case MTS_MT9234ZBAOLD_PRODUCT_ID: + strcpy(buf, "mts_mt9234zba.fw"); + break; } } if (buf[0] == '\0') { if (tdev->td_is_3410) @@ -1718,7 +1723,7 @@ static int ti_download_firmware(struct ti_device *tdev) return -ENOENT; } if (fw_p->size > TI_FIRMWARE_BUF_SIZE) { - dev_err(&dev->dev, "%s - firmware too large\n", __func__); + dev_err(&dev->dev, "%s - firmware too large %zu\n", __func__, fw_p->size); return -ENOENT; } @@ -1730,6 +1735,7 @@ static int ti_download_firmware(struct ti_device *tdev) status = ti_do_download(dev, pipe, buffer, fw_p->size); kfree(buffer); } else { + dbg("%s ENOMEM\n", __func__); status = -ENOMEM; } release_firmware(fw_p); @@ -1743,142 +1749,3 @@ static int ti_download_firmware(struct ti_device *tdev) return 0; } - - -/* Circular Buffer Functions */ - -/* - * ti_buf_alloc - * - * Allocate a circular buffer and all associated memory. - */ - -static struct circ_buf *ti_buf_alloc(void) -{ - struct circ_buf *cb; - - cb = kmalloc(sizeof(struct circ_buf), GFP_KERNEL); - if (cb == NULL) - return NULL; - - cb->buf = kmalloc(TI_WRITE_BUF_SIZE, GFP_KERNEL); - if (cb->buf == NULL) { - kfree(cb); - return NULL; - } - - ti_buf_clear(cb); - - return cb; -} - - -/* - * ti_buf_free - * - * Free the buffer and all associated memory. - */ - -static void ti_buf_free(struct circ_buf *cb) -{ - kfree(cb->buf); - kfree(cb); -} - - -/* - * ti_buf_clear - * - * Clear out all data in the circular buffer. - */ - -static void ti_buf_clear(struct circ_buf *cb) -{ - cb->head = cb->tail = 0; -} - - -/* - * ti_buf_data_avail - * - * Return the number of bytes of data available in the circular - * buffer. - */ - -static int ti_buf_data_avail(struct circ_buf *cb) -{ - return CIRC_CNT(cb->head, cb->tail, TI_WRITE_BUF_SIZE); -} - - -/* - * ti_buf_space_avail - * - * Return the number of bytes of space available in the circular - * buffer. - */ - -static int ti_buf_space_avail(struct circ_buf *cb) -{ - return CIRC_SPACE(cb->head, cb->tail, TI_WRITE_BUF_SIZE); -} - - -/* - * ti_buf_put - * - * Copy data data from a user buffer and put it into the circular buffer. - * Restrict to the amount of space available. - * - * Return the number of bytes copied. - */ - -static int ti_buf_put(struct circ_buf *cb, const char *buf, int count) -{ - int c, ret = 0; - - while (1) { - c = CIRC_SPACE_TO_END(cb->head, cb->tail, TI_WRITE_BUF_SIZE); - if (count < c) - c = count; - if (c <= 0) - break; - memcpy(cb->buf + cb->head, buf, c); - cb->head = (cb->head + c) & (TI_WRITE_BUF_SIZE-1); - buf += c; - count -= c; - ret += c; - } - - return ret; -} - - -/* - * ti_buf_get - * - * Get data from the circular buffer and copy to the given buffer. - * Restrict to the amount of data available. - * - * Return the number of bytes copied. - */ - -static int ti_buf_get(struct circ_buf *cb, char *buf, int count) -{ - int c, ret = 0; - - while (1) { - c = CIRC_CNT_TO_END(cb->head, cb->tail, TI_WRITE_BUF_SIZE); - if (count < c) - c = count; - if (c <= 0) - break; - memcpy(buf, cb->buf + cb->tail, c); - cb->tail = (cb->tail + c) & (TI_WRITE_BUF_SIZE-1); - buf += c; - count -= c; - ret += c; - } - - return ret; -} |