X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fusb%2Frenesas_usbhs%2Fpipe.c;h=56137d59e3b261d48490d26c4aa1261bef381924;hp=5897ddad05f23b7ab9748799ab9254530f4563c7;hb=dad67397f2090b29cd1f169e6a4ac6f3532c6858;hpb=8a1629c771b1a60bc6d73394d869fe69b13200dc

diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index 5897ddad05f2..56137d59e3b2 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -15,7 +15,6 @@
  *
  */
 #include <linux/delay.h>
-#include <linux/io.h>
 #include <linux/slab.h>
 #include "./common.h"
 #include "./pipe.h"
@@ -23,13 +22,8 @@
 /*
  *		macros
  */
-#define usbhsp_priv_to_pipeinfo(pr)	(&(pr)->pipe_info)
-#define usbhsp_pipe_to_priv(p)		((p)->priv)
-
 #define usbhsp_addr_offset(p)	((usbhs_pipe_number(p) - 1) * 2)
 
-#define usbhsp_is_dcp(p)	((p)->priv->pipe_info.pipe == (p))
-
 #define usbhsp_flags_set(p, f)	((p)->flags |=  USBHS_PIPE_FLAGS_##f)
 #define usbhsp_flags_clr(p, f)	((p)->flags &= ~USBHS_PIPE_FLAGS_##f)
 #define usbhsp_flags_has(p, f)	((p)->flags &   USBHS_PIPE_FLAGS_##f)
@@ -77,10 +71,10 @@ void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
  */
 static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	int offset = usbhsp_addr_offset(pipe);
 
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		usbhs_bset(priv, DCPCTR, mask, val);
 	else
 		usbhs_bset(priv, PIPEnCTR + offset, mask, val);
@@ -88,10 +82,10 @@ static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
 
 static u16 usbhsp_pipectrl_get(struct usbhs_pipe *pipe)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	int offset = usbhsp_addr_offset(pipe);
 
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		return usbhs_read(priv, DCPCTR);
 	else
 		return usbhs_read(priv, PIPEnCTR + offset);
@@ -104,9 +98,9 @@ static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe,
 				  u16 dcp_reg, u16 pipe_reg,
 				  u16 mask, u16 val)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		usbhs_bset(priv, dcp_reg, mask, val);
 	else
 		usbhs_bset(priv, pipe_reg, mask, val);
@@ -115,9 +109,9 @@ static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe,
 static u16 __usbhsp_pipe_xxx_get(struct usbhs_pipe *pipe,
 				 u16 dcp_reg, u16 pipe_reg)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		return usbhs_read(priv, dcp_reg);
 	else
 		return usbhs_read(priv, pipe_reg);
@@ -136,7 +130,7 @@ static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
  */
 static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
 {
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		return;
 
 	__usbhsp_pipe_xxx_set(pipe, 0, PIPEBUF, mask, val);
@@ -160,7 +154,7 @@ static u16 usbhsp_pipe_maxp_get(struct usbhs_pipe *pipe)
  */
 static void usbhsp_pipe_select(struct usbhs_pipe *pipe)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 
 	/*
 	 * On pipe, this is necessary before
@@ -182,8 +176,7 @@ static void usbhsp_pipe_select(struct usbhs_pipe *pipe)
 
 static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-	struct device *dev = usbhs_priv_to_dev(priv);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	int timeout = 1024;
 	u16 val;
 
@@ -206,6 +199,7 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
 	 *   - "Pipe Control Registers Switching Procedure"
 	 */
 	usbhs_write(priv, CFIFOSEL, 0);
+	usbhs_pipe_disable(pipe);
 
 	do {
 		val  = usbhsp_pipectrl_get(pipe);
@@ -217,25 +211,10 @@ static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
 
 	} while (timeout--);
 
-	/*
-	 * force NAK
-	 */
-	timeout = 1024;
-	usbhs_fifo_disable(pipe);
-	do {
-		val  = usbhsp_pipectrl_get(pipe);
-		val &= PBUSY;
-		if (!val)
-			return 0;
-
-	} while (timeout--);
-
-	dev_err(dev, "pipe barrier failed\n");
-
 	return -EBUSY;
 }
 
-static int usbhsp_pipe_is_accessible(struct usbhs_pipe *pipe)
+int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe)
 {
 	u16 val;
 
@@ -268,15 +247,27 @@ static void __usbhsp_pid_try_nak_if_stall(struct usbhs_pipe *pipe)
 	}
 }
 
-void usbhs_fifo_disable(struct usbhs_pipe *pipe)
+void usbhs_pipe_disable(struct usbhs_pipe *pipe)
 {
+	int timeout = 1024;
+	u16 val;
+
 	/* see "Pipe n Control Register" - "PID" */
 	__usbhsp_pid_try_nak_if_stall(pipe);
 
 	usbhsp_pipectrl_set(pipe, PID_MASK, PID_NAK);
+
+	do {
+		val  = usbhsp_pipectrl_get(pipe);
+		val &= PBUSY;
+		if (!val)
+			break;
+
+		udelay(10);
+	} while (timeout--);
 }
 
-void usbhs_fifo_enable(struct usbhs_pipe *pipe)
+void usbhs_pipe_enable(struct usbhs_pipe *pipe)
 {
 	/* see "Pipe n Control Register" - "PID" */
 	__usbhsp_pid_try_nak_if_stall(pipe);
@@ -284,7 +275,7 @@ void usbhs_fifo_enable(struct usbhs_pipe *pipe)
 	usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF);
 }
 
-void usbhs_fifo_stall(struct usbhs_pipe *pipe)
+void usbhs_pipe_stall(struct usbhs_pipe *pipe)
 {
 	u16 pid = usbhsp_pipectrl_get(pipe);
 
@@ -304,191 +295,6 @@ void usbhs_fifo_stall(struct usbhs_pipe *pipe)
 	}
 }
 
-/*
- *		CFIFO ctrl
- */
-void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe)
-{
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-
-	usbhs_bset(priv, CFIFOCTR, BVAL, BVAL);
-}
-
-static void usbhsp_fifo_clear(struct usbhs_pipe *pipe)
-{
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-
-	usbhs_write(priv, CFIFOCTR, BCLR);
-}
-
-static int usbhsp_fifo_barrier(struct usbhs_priv *priv)
-{
-	int timeout = 1024;
-
-	do {
-		/* The FIFO port is accessible */
-		if (usbhs_read(priv, CFIFOCTR) & FRDY)
-			return 0;
-
-		udelay(10);
-	} while (timeout--);
-
-	return -EBUSY;
-}
-
-static int usbhsp_fifo_rcv_len(struct usbhs_priv *priv)
-{
-	return usbhs_read(priv, CFIFOCTR) & DTLN_MASK;
-}
-
-static int usbhsp_fifo_select(struct usbhs_pipe *pipe, int write)
-{
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-	struct device *dev = usbhs_priv_to_dev(priv);
-	int timeout = 1024;
-	u16 mask = ((1 << 5) | 0xF);		/* mask of ISEL | CURPIPE */
-	u16 base = usbhs_pipe_number(pipe);	/* CURPIPE */
-
-	if (usbhsp_is_dcp(pipe))
-		base |= (1 == write) << 5;	/* ISEL */
-
-	/* "base" will be used below  */
-	usbhs_write(priv, CFIFOSEL, base | MBW_32);
-
-	/* check ISEL and CURPIPE value */
-	while (timeout--) {
-		if (base == (mask & usbhs_read(priv, CFIFOSEL)))
-			return 0;
-		udelay(10);
-	}
-
-	dev_err(dev, "fifo select error\n");
-
-	return -EIO;
-}
-
-int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe)
-{
-	return usbhsp_fifo_select(pipe, 1);
-}
-
-int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len)
-{
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-	void __iomem *addr = priv->base + CFIFO;
-	int maxp = usbhs_pipe_get_maxpacket(pipe);
-	int total_len;
-	int i, ret;
-
-	ret = usbhsp_pipe_is_accessible(pipe);
-	if (ret < 0)
-		return ret;
-
-	ret = usbhsp_fifo_select(pipe, 1);
-	if (ret < 0)
-		return ret;
-
-	ret = usbhsp_fifo_barrier(priv);
-	if (ret < 0)
-		return ret;
-
-	len = min(len, maxp);
-	total_len = len;
-
-	/*
-	 * FIXME
-	 *
-	 * 32-bit access only
-	 */
-	if (len >= 4 &&
-	    !((unsigned long)buf & 0x03)) {
-		iowrite32_rep(addr, buf, len / 4);
-		len %= 4;
-		buf += total_len - len;
-	}
-
-	/* the rest operation */
-	for (i = 0; i < len; i++)
-		iowrite8(buf[i], addr + (0x03 - (i & 0x03)));
-
-	if (total_len < maxp)
-		usbhs_fifo_send_terminator(pipe);
-
-	return total_len;
-}
-
-int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe)
-{
-	int ret;
-
-	/*
-	 * select pipe and enable it to prepare packet receive
-	 */
-	ret = usbhsp_fifo_select(pipe, 0);
-	if (ret < 0)
-		return ret;
-
-	usbhs_fifo_enable(pipe);
-
-	return ret;
-}
-
-int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len)
-{
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-	void __iomem *addr = priv->base + CFIFO;
-	int rcv_len;
-	int i, ret;
-	int total_len;
-	u32 data = 0;
-
-	ret = usbhsp_fifo_select(pipe, 0);
-	if (ret < 0)
-		return ret;
-
-	ret = usbhsp_fifo_barrier(priv);
-	if (ret < 0)
-		return ret;
-
-	rcv_len = usbhsp_fifo_rcv_len(priv);
-
-	/*
-	 * Buffer clear if Zero-Length packet
-	 *
-	 * see
-	 * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function"
-	 */
-	if (0 == rcv_len) {
-		usbhsp_fifo_clear(pipe);
-		return 0;
-	}
-
-	len = min(rcv_len, len);
-	total_len = len;
-
-	/*
-	 * FIXME
-	 *
-	 * 32-bit access only
-	 */
-	if (len >= 4 &&
-	    !((unsigned long)buf & 0x03)) {
-		ioread32_rep(addr, buf, len / 4);
-		len %= 4;
-		buf += rcv_len - len;
-	}
-
-	/* the rest operation */
-	for (i = 0; i < len; i++) {
-		if (!(i & 0x03))
-			data = ioread32(addr);
-
-		buf[i] = (data >> ((i & 0x03) * 8)) & 0xff;
-	}
-
-	return total_len;
-}
-
 /*
  *		pipe setup
  */
@@ -522,7 +328,7 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 	};
 	int is_double = usbhsp_possible_double_buffer(pipe);
 
-	if (usbhsp_is_dcp(pipe))
+	if (usbhs_pipe_is_dcp(pipe))
 		return -EINVAL;
 
 	/*
@@ -553,12 +359,15 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 
 	/* DIR */
 	if (usb_endpoint_dir_in(desc))
-		usbhsp_flags_set(pipe, IS_DIR_IN);
+		usbhsp_flags_set(pipe, IS_DIR_HOST);
 
 	if ((is_host  && usb_endpoint_dir_out(desc)) ||
 	    (!is_host && usb_endpoint_dir_in(desc)))
 		dir |= DIR_OUT;
 
+	if (!dir)
+		usbhsp_flags_set(pipe, IS_DIR_IN);
+
 	/* SHTNAK */
 	if (usbhsp_type_is(pipe, USB_ENDPOINT_XFER_BULK) &&
 	    !dir)
@@ -590,8 +399,8 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe,
 				 const struct usb_endpoint_descriptor *desc,
 				 int is_host)
 {
-	struct usbhs_priv *priv = usbhsp_pipe_to_priv(pipe);
-	struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
 	struct device *dev = usbhs_priv_to_dev(priv);
 	int pipe_num = usbhs_pipe_number(pipe);
 	int is_double = usbhsp_possible_double_buffer(pipe);
@@ -669,7 +478,7 @@ static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe,
  */
 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe)
 {
-	u16 mask = usbhsp_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK;
+	u16 mask = usbhs_pipe_is_dcp(pipe) ? DCP_MAXP_MASK : PIPE_MAXP_MASK;
 
 	usbhsp_pipe_select(pipe);
 
@@ -681,6 +490,11 @@ int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe)
 	return usbhsp_flags_has(pipe, IS_DIR_IN);
 }
 
+int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe)
+{
+	return usbhsp_flags_has(pipe, IS_DIR_HOST);
+}
+
 void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe)
 {
 	usbhsp_pipectrl_set(pipe, SQCLR, SQCLR);
@@ -717,12 +531,19 @@ static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type)
 	return pipe;
 }
 
-void usbhs_pipe_init(struct usbhs_priv *priv)
+void usbhs_pipe_init(struct usbhs_priv *priv,
+		     void (*done)(struct usbhs_pkt *pkt))
 {
-	struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
+	struct device *dev = usbhs_priv_to_dev(priv);
 	struct usbhs_pipe *pipe;
 	int i;
 
+	if (!done) {
+		dev_err(dev, "no done function\n");
+		return;
+	}
+
 	/*
 	 * FIXME
 	 *
@@ -742,9 +563,14 @@ void usbhs_pipe_init(struct usbhs_priv *priv)
 
 		usbhsp_flags_init(pipe);
 		pipe->mod_private = NULL;
+		INIT_LIST_HEAD(&pipe->list);
 
-		usbhsp_fifo_clear(pipe);
+		/* pipe force init */
+		usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
+		usbhsp_pipectrl_set(pipe, ACLRM, 0);
 	}
+
+	info->done = done;
 }
 
 struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
@@ -764,7 +590,9 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
 		return NULL;
 	}
 
-	usbhs_fifo_disable(pipe);
+	INIT_LIST_HEAD(&pipe->list);
+
+	usbhs_pipe_disable(pipe);
 
 	/* make sure pipe is not busy */
 	ret = usbhsp_pipe_barrier(pipe);
@@ -777,11 +605,6 @@ struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
 	pipebuf  = usbhsp_setup_pipebuff(pipe, desc, is_host);
 	pipemaxp = usbhsp_setup_pipemaxp(pipe, desc, is_host);
 
-	/* buffer clear
-	 * see PIPECFG :: BFRE */
-	usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
-	usbhsp_pipectrl_set(pipe, ACLRM, 0);
-
 	usbhsp_pipe_select(pipe);
 	usbhsp_pipe_cfg_set(pipe, 0xFFFF, pipecfg);
 	usbhsp_pipe_buf_set(pipe, 0xFFFF, pipebuf);
@@ -816,25 +639,25 @@ struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv)
 
 	usbhsp_pipe_select(pipe);
 	usbhs_pipe_clear_sequence(pipe);
+	INIT_LIST_HEAD(&pipe->list);
 
 	return pipe;
 }
 
 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe)
 {
-	WARN_ON(!usbhsp_is_dcp(pipe));
+	WARN_ON(!usbhs_pipe_is_dcp(pipe));
 
-	usbhs_fifo_enable(pipe);
+	usbhs_pipe_enable(pipe);
 	usbhsp_pipectrl_set(pipe, CCPL, CCPL);
 }
 
-
 /*
  *		pipe module function
  */
 int usbhs_pipe_probe(struct usbhs_priv *priv)
 {
-	struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
 	struct usbhs_pipe *pipe;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
@@ -871,7 +694,7 @@ int usbhs_pipe_probe(struct usbhs_priv *priv)
 
 void usbhs_pipe_remove(struct usbhs_priv *priv)
 {
-	struct usbhs_pipe_info *info = usbhsp_priv_to_pipeinfo(priv);
+	struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
 
 	kfree(info->pipe);
 }