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Commit 7421107b authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: musb: hold context on musb structure 



when we start splitting HW glue layer, it's
gonna make it easier to re-use that structure.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 1ea7f352

drivers/usb/musb/musb_core.c

+55 −57
Original line number Diff line number Diff line
@@ -2265,8 +2265,6 @@ static int __exit musb_remove(struct platform_device *pdev) 


#ifdef	CONFIG_PM



static struct musb_context_registers musb_context;



void musb_save_context(struct musb *musb)

{

	int i;
@@ -2274,65 +2272,65 @@ void musb_save_context(struct musb *musb) 
	void __iomem *epio;



	if (is_host_enabled(musb)) {

		musb_context.frame = musb_readw(musb_base, MUSB_FRAME);

		musb_context.testmode = musb_readb(musb_base, MUSB_TESTMODE);

		musb_context.busctl = musb_read_ulpi_buscontrol(musb->mregs);

		musb->context.frame = musb_readw(musb_base, MUSB_FRAME);

		musb->context.testmode = musb_readb(musb_base, MUSB_TESTMODE);

		musb->context.busctl = musb_read_ulpi_buscontrol(musb->mregs);

	}

	musb_context.power = musb_readb(musb_base, MUSB_POWER);

	musb_context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);

	musb_context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);

	musb_context.intrusbe = musb_readb(musb_base, MUSB_INTRUSBE);

	musb_context.index = musb_readb(musb_base, MUSB_INDEX);

	musb_context.devctl = musb_readb(musb_base, MUSB_DEVCTL);

	musb->context.power = musb_readb(musb_base, MUSB_POWER);

	musb->context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);

	musb->context.intrrxe = musb_readw(musb_base, MUSB_INTRRXE);

	musb->context.intrusbe = musb_readb(musb_base, MUSB_INTRUSBE);

	musb->context.index = musb_readb(musb_base, MUSB_INDEX);

	musb->context.devctl = musb_readb(musb_base, MUSB_DEVCTL);



	for (i = 0; i < musb->config->num_eps; ++i) {

		epio = musb->endpoints[i].regs;

		musb_context.index_regs[i].txmaxp =

		musb->context.index_regs[i].txmaxp =

			musb_readw(epio, MUSB_TXMAXP);

		musb_context.index_regs[i].txcsr =

		musb->context.index_regs[i].txcsr =

			musb_readw(epio, MUSB_TXCSR);

		musb_context.index_regs[i].rxmaxp =

		musb->context.index_regs[i].rxmaxp =

			musb_readw(epio, MUSB_RXMAXP);

		musb_context.index_regs[i].rxcsr =

		musb->context.index_regs[i].rxcsr =

			musb_readw(epio, MUSB_RXCSR);



		if (musb->dyn_fifo) {

			musb_context.index_regs[i].txfifoadd =

			musb->context.index_regs[i].txfifoadd =

					musb_read_txfifoadd(musb_base);

			musb_context.index_regs[i].rxfifoadd =

			musb->context.index_regs[i].rxfifoadd =

					musb_read_rxfifoadd(musb_base);

			musb_context.index_regs[i].txfifosz =

			musb->context.index_regs[i].txfifosz =

					musb_read_txfifosz(musb_base);

			musb_context.index_regs[i].rxfifosz =

			musb->context.index_regs[i].rxfifosz =

					musb_read_rxfifosz(musb_base);

		}

		if (is_host_enabled(musb)) {

			musb_context.index_regs[i].txtype =

			musb->context.index_regs[i].txtype =

				musb_readb(epio, MUSB_TXTYPE);

			musb_context.index_regs[i].txinterval =

			musb->context.index_regs[i].txinterval =

				musb_readb(epio, MUSB_TXINTERVAL);

			musb_context.index_regs[i].rxtype =

			musb->context.index_regs[i].rxtype =

				musb_readb(epio, MUSB_RXTYPE);

			musb_context.index_regs[i].rxinterval =

			musb->context.index_regs[i].rxinterval =

				musb_readb(epio, MUSB_RXINTERVAL);



			musb_context.index_regs[i].txfunaddr =

			musb->context.index_regs[i].txfunaddr =

				musb_read_txfunaddr(musb_base, i);

			musb_context.index_regs[i].txhubaddr =

			musb->context.index_regs[i].txhubaddr =

				musb_read_txhubaddr(musb_base, i);

			musb_context.index_regs[i].txhubport =

			musb->context.index_regs[i].txhubport =

				musb_read_txhubport(musb_base, i);



			musb_context.index_regs[i].rxfunaddr =

			musb->context.index_regs[i].rxfunaddr =

				musb_read_rxfunaddr(musb_base, i);

			musb_context.index_regs[i].rxhubaddr =

			musb->context.index_regs[i].rxhubaddr =

				musb_read_rxhubaddr(musb_base, i);

			musb_context.index_regs[i].rxhubport =

			musb->context.index_regs[i].rxhubport =

				musb_read_rxhubport(musb_base, i);

		}

	}



	musb_platform_save_context(musb, &musb_context);

	musb_platform_save_context(musb, &musb->context);

}



void musb_restore_context(struct musb *musb)
@@ -2342,67 +2340,67 @@ void musb_restore_context(struct musb *musb) 
	void __iomem *ep_target_regs;

	void __iomem *epio;



	musb_platform_restore_context(musb, &musb_context);

	musb_platform_restore_context(musb, &musb->context);



	if (is_host_enabled(musb)) {

		musb_writew(musb_base, MUSB_FRAME, musb_context.frame);

		musb_writeb(musb_base, MUSB_TESTMODE, musb_context.testmode);

		musb_write_ulpi_buscontrol(musb->mregs, musb_context.busctl);

		musb_writew(musb_base, MUSB_FRAME, musb->context.frame);

		musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);

		musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);

	}

	musb_writeb(musb_base, MUSB_POWER, musb_context.power);

	musb_writew(musb_base, MUSB_INTRTXE, musb_context.intrtxe);

	musb_writew(musb_base, MUSB_INTRRXE, musb_context.intrrxe);

	musb_writeb(musb_base, MUSB_INTRUSBE, musb_context.intrusbe);

	musb_writeb(musb_base, MUSB_DEVCTL, musb_context.devctl);

	musb_writeb(musb_base, MUSB_POWER, musb->context.power);

	musb_writew(musb_base, MUSB_INTRTXE, musb->context.intrtxe);

	musb_writew(musb_base, MUSB_INTRRXE, musb->context.intrrxe);

	musb_writeb(musb_base, MUSB_INTRUSBE, musb->context.intrusbe);

	musb_writeb(musb_base, MUSB_DEVCTL, musb->context.devctl);



	for (i = 0; i < musb->config->num_eps; ++i) {

		epio = musb->endpoints[i].regs;

		musb_writew(epio, MUSB_TXMAXP,

			musb_context.index_regs[i].txmaxp);

			musb->context.index_regs[i].txmaxp);

		musb_writew(epio, MUSB_TXCSR,

			musb_context.index_regs[i].txcsr);

			musb->context.index_regs[i].txcsr);

		musb_writew(epio, MUSB_RXMAXP,

			musb_context.index_regs[i].rxmaxp);

			musb->context.index_regs[i].rxmaxp);

		musb_writew(epio, MUSB_RXCSR,

			musb_context.index_regs[i].rxcsr);

			musb->context.index_regs[i].rxcsr);



		if (musb->dyn_fifo) {

			musb_write_txfifosz(musb_base,

				musb_context.index_regs[i].txfifosz);

				musb->context.index_regs[i].txfifosz);

			musb_write_rxfifosz(musb_base,

				musb_context.index_regs[i].rxfifosz);

				musb->context.index_regs[i].rxfifosz);

			musb_write_txfifoadd(musb_base,

				musb_context.index_regs[i].txfifoadd);

				musb->context.index_regs[i].txfifoadd);

			musb_write_rxfifoadd(musb_base,

				musb_context.index_regs[i].rxfifoadd);

				musb->context.index_regs[i].rxfifoadd);

		}



		if (is_host_enabled(musb)) {

			musb_writeb(epio, MUSB_TXTYPE,

				musb_context.index_regs[i].txtype);

				musb->context.index_regs[i].txtype);

			musb_writeb(epio, MUSB_TXINTERVAL,

				musb_context.index_regs[i].txinterval);

				musb->context.index_regs[i].txinterval);

			musb_writeb(epio, MUSB_RXTYPE,

				musb_context.index_regs[i].rxtype);

				musb->context.index_regs[i].rxtype);

			musb_writeb(epio, MUSB_RXINTERVAL,



			musb_context.index_regs[i].rxinterval);

			musb->context.index_regs[i].rxinterval);

			musb_write_txfunaddr(musb_base, i,

				musb_context.index_regs[i].txfunaddr);

				musb->context.index_regs[i].txfunaddr);

			musb_write_txhubaddr(musb_base, i,

				musb_context.index_regs[i].txhubaddr);

				musb->context.index_regs[i].txhubaddr);

			musb_write_txhubport(musb_base, i,

				musb_context.index_regs[i].txhubport);

				musb->context.index_regs[i].txhubport);



			ep_target_regs =

				musb_read_target_reg_base(i, musb_base);



			musb_write_rxfunaddr(ep_target_regs,

				musb_context.index_regs[i].rxfunaddr);

				musb->context.index_regs[i].rxfunaddr);

			musb_write_rxhubaddr(ep_target_regs,

				musb_context.index_regs[i].rxhubaddr);

				musb->context.index_regs[i].rxhubaddr);

			musb_write_rxhubport(ep_target_regs,

				musb_context.index_regs[i].rxhubport);

				musb->context.index_regs[i].rxhubport);

		}

	}

}

drivers/usb/musb/musb_core.h

+28 −27
Original line number Diff line number Diff line
@@ -353,6 +353,33 @@ static inline struct usb_request *next_out_request(struct musb_hw_ep *hw_ep) 
#endif

}



struct musb_csr_regs {

	/* FIFO registers */

	u16 txmaxp, txcsr, rxmaxp, rxcsr;

	u16 rxfifoadd, txfifoadd;

	u8 txtype, txinterval, rxtype, rxinterval;

	u8 rxfifosz, txfifosz;

	u8 txfunaddr, txhubaddr, txhubport;

	u8 rxfunaddr, rxhubaddr, rxhubport;

};



struct musb_context_registers {



#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \

    defined(CONFIG_ARCH_OMAP4)

	u32 otg_sysconfig, otg_forcestandby;

#endif

	u8 power;

	u16 intrtxe, intrrxe;

	u8 intrusbe;

	u16 frame;

	u8 index, testmode;



	u8 devctl, busctl, misc;



	struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];

};



/*

 * struct musb - Driver instance data.

 */
@@ -363,6 +390,7 @@ struct musb { 
	struct clk		*phy_clock;



	const struct musb_platform_ops *ops;

	struct musb_context_registers context;



	irqreturn_t		(*isr)(int, void *);

	struct work_struct	irq_work;
@@ -582,33 +610,6 @@ extern irqreturn_t musb_interrupt(struct musb *); 
extern void musb_hnp_stop(struct musb *musb);



#ifdef CONFIG_PM

struct musb_csr_regs {

	/* FIFO registers */

	u16 txmaxp, txcsr, rxmaxp, rxcsr;

	u16 rxfifoadd, txfifoadd;

	u8 txtype, txinterval, rxtype, rxinterval;

	u8 rxfifosz, txfifosz;

	u8 txfunaddr, txhubaddr, txhubport;

	u8 rxfunaddr, rxhubaddr, rxhubport;

};



struct musb_context_registers {



#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \

    defined(CONFIG_ARCH_OMAP4)

	u32 otg_sysconfig, otg_forcestandby;

#endif

	u8 power;

	u16 intrtxe, intrrxe;

	u8 intrusbe;

	u16 frame;

	u8 index, testmode;



	u8 devctl, busctl, misc;



	struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];

};



#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \

    defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_BLACKFIN)

extern void musb_platform_save_context(struct musb *musb,