patch-2.3.23 linux/drivers/macintosh/macserial.h

• Lines: 92
• Date: Wed Oct 20 22:13:21 1999
• Orig file: v2.3.22/linux/drivers/macintosh/macserial.h
• Orig date: Sat Oct 9 11:47:50 1999

diff -u --recursive --new-file v2.3.22/linux/drivers/macintosh/macserial.h linux/drivers/macintosh/macserial.h
@@ -92,6 +92,13 @@
 	struct mac_serial*	parent;
 };
 
+struct mac_dma {
+	volatile struct dbdma_regs	dma;
+	volatile unsigned short		res_count;
+	volatile unsigned short		command;
+	volatile unsigned int		buf_addr;
+};
+
 struct mac_serial {
 	struct mac_serial *zs_next;	/* For IRQ servicing chain */
 	struct mac_zschannel *zs_channel; /* Channel registers */
@@ -156,6 +163,28 @@
 	struct termios		callout_termios;
 	wait_queue_head_t	open_wait;
 	wait_queue_head_t	close_wait;
+
+	volatile struct dbdma_regs *tx_dma;
+	int			tx_dma_irq;
+	volatile struct dbdma_cmd *tx_cmds;
+	volatile struct mac_dma *rx;
+	int 			rx_dma_irq;
+	volatile struct dbdma_cmd **rx_cmds;
+	unsigned char		**rx_char_buf;
+	unsigned char		**rx_flag_buf;
+#define	RX_BUF_SIZE	256
+	int			rx_nbuf;
+	int			rx_done_bytes;
+	int			rx_ubuf;
+	int			rx_fbuf;
+#define	RX_NO_FBUF	(-1)
+	int			rx_cbuf;
+	spinlock_t		rx_dma_lock;
+	int			has_dma;
+	int			dma_initted;
+	void			*dma_priv;
+	struct timer_list	poll_dma_timer;
+#define RX_DMA_TIMER	(jiffies + 10*HZ/1000)
 };
 
 
@@ -226,9 +255,9 @@
 #define	INT_ALL_Rx	0x10	/* Int on all Rx Characters or error */
 #define	INT_ERR_Rx	0x18	/* Int on error only */
 
-#define	WT_RDY_RT	0x20	/* Wait/Ready on R/T */
-#define	WT_FN_RDYFN	0x40	/* Wait/FN/Ready FN */
-#define	WT_RDY_ENAB	0x80	/* Wait/Ready Enable */
+#define	WT_RDY_RT	0x20	/* W/Req reflects recv if 1, xmit if 0 */
+#define	WT_FN_RDYFN	0x40	/* W/Req pin is DMA request if 1, wait if 0 */
+#define	WT_RDY_ENAB	0x80	/* Enable W/Req pin */
 
 /* Write Register #2 (Interrupt Vector) */
 
@@ -286,6 +315,9 @@
 
 /* Write Register 7 (Sync bits 8-15/SDLC 01111110) */
 
+/* Write Register 7' (Some enhanced feature control) */
+#define	ENEXREAD	0x40	/* Enable read of some write registers */
+
 /* Write Register 8 (transmit buffer) */
 
 /* Write Register 9 (Master interrupt control) */
@@ -346,7 +378,9 @@
 #define	SNRZI	0xe0	/* Set NRZI mode */
 
 /* Write Register 15 (external/status interrupt control) */
+#define	EN85C30	1	/* Enable some 85c30-enhanced registers */
 #define	ZCIE	2	/* Zero count IE */
+#define	ENSTFIFO 4	/* Enable status FIFO (SDLC) */
 #define	DCDIE	8	/* DCD IE */
 #define	SYNCIE	0x10	/* Sync/hunt IE */
 #define	CTSIE	0x20	/* CTS IE */
@@ -382,6 +416,15 @@
 #define	END_FR		0x80	/* End of Frame (SDLC) */
 
 /* Read Register 2 (channel b only) - Interrupt vector */
+#define	CHB_Tx_EMPTY	0x00
+#define	CHB_EXT_STAT	0x02
+#define	CHB_Rx_AVAIL	0x04
+#define	CHB_SPECIAL	0x06
+#define	CHA_Tx_EMPTY	0x08
+#define	CHA_EXT_STAT	0x0a
+#define	CHA_Rx_AVAIL	0x0c
+#define	CHA_SPECIAL	0x0e
+#define	STATUS_MASK	0x06
 
 /* Read Register 3 (interrupt pending register) ch a only */
 #define	CHBEXT	0x1		/* Channel B Ext/Stat IP */