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saa7146.h
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#ifndef __SAA7146__ #define __SAA7146__ #include <linux/delay.h> /* for delay-stuff */ #include <linux/slab.h> /* for kmalloc/kfree */ #include <linux/pci.h> /* for pci-config-stuff, vendor ids etc. */ #include <linux/init.h> /* for "__init" */ #include <linux/interrupt.h> /* for IMMEDIATE_BH */ #include <linux/kmod.h> /* for kernel module loader */ #include <linux/i2c.h> /* for i2c subsystem */ #include <asm/io.h> /* for accessing devices */ #include <linux/stringify.h> #include <linux/mutex.h> #include <linux/scatterlist.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <linux/vmalloc.h> /* for vmalloc() */ #include <linux/mm.h> /* for vmalloc_to_page() */ #define saa7146_write(sxy,adr,dat) writel((dat),(sxy->mem+(adr))) #define saa7146_read(sxy,adr) readl(sxy->mem+(adr)) extern unsigned int saa7146_debug; #ifndef DEBUG_VARIABLE #define DEBUG_VARIABLE saa7146_debug #endif #define ERR(fmt, ...) pr_err("%s: " fmt, __func__, ##__VA_ARGS__) #define _DBG(mask, fmt, ...) \ do { \ if (DEBUG_VARIABLE & mask) \ pr_debug("%s(): " fmt, __func__, ##__VA_ARGS__); \ } while (0) /* simple debug messages */ #define DEB_S(fmt, ...) _DBG(0x01, fmt, ##__VA_ARGS__) /* more detailed debug messages */ #define DEB_D(fmt, ...) _DBG(0x02, fmt, ##__VA_ARGS__) /* print enter and exit of functions */ #define DEB_EE(fmt, ...) _DBG(0x04, fmt, ##__VA_ARGS__) /* i2c debug messages */ #define DEB_I2C(fmt, ...) _DBG(0x08, fmt, ##__VA_ARGS__) /* vbi debug messages */ #define DEB_VBI(fmt, ...) _DBG(0x10, fmt, ##__VA_ARGS__) /* interrupt debug messages */ #define DEB_INT(fmt, ...) _DBG(0x20, fmt, ##__VA_ARGS__) /* capture debug messages */ #define DEB_CAP(fmt, ...) _DBG(0x40, fmt, ##__VA_ARGS__) #define SAA7146_ISR_CLEAR(x,y) \ saa7146_write(x, ISR, (y)); struct module; struct saa7146_dev; struct saa7146_extension; struct saa7146_vv; /* saa7146 page table */ struct saa7146_pgtable { unsigned int size; __le32 *cpu; dma_addr_t dma; /* used for offsets for u,v planes for planar capture modes */ unsigned long offset; /* used for custom pagetables (used for example by budget dvb cards) */ struct scatterlist *slist; int nents; }; struct saa7146_pci_extension_data { struct saa7146_extension *ext; void *ext_priv; /* most likely a name string */ }; #define MAKE_EXTENSION_PCI(x_var, x_vendor, x_device) \ { \ .vendor = PCI_VENDOR_ID_PHILIPS, \ .device = PCI_DEVICE_ID_PHILIPS_SAA7146, \ .subvendor = x_vendor, \ .subdevice = x_device, \ .driver_data = (unsigned long)& x_var, \ } struct saa7146_extension { char name[32]; /* name of the device */ #define SAA7146_USE_I2C_IRQ 0x1 #define SAA7146_I2C_SHORT_DELAY 0x2 int flags; /* pairs of subvendor and subdevice ids for supported devices, last entry 0xffff, 0xfff */ struct module *module; struct pci_driver driver; struct pci_device_id *pci_tbl; /* extension functions */ int (*probe)(struct saa7146_dev *); int (*attach)(struct saa7146_dev *, struct saa7146_pci_extension_data *); int (*detach)(struct saa7146_dev*); u32 irq_mask; /* mask to indicate, which irq-events are handled by the extension */ void (*irq_func)(struct saa7146_dev*, u32* irq_mask); }; struct saa7146_dma { dma_addr_t dma_handle; __le32 *cpu_addr; }; struct saa7146_dev { struct module *module; struct v4l2_device v4l2_dev; struct v4l2_ctrl_handler ctrl_handler; /* different device locks */ spinlock_t slock; struct mutex v4l2_lock; unsigned char __iomem *mem; /* pointer to mapped IO memory */ u32 revision; /* chip revision; needed for bug-workarounds*/ /* pci-device & irq stuff*/ char name[32]; struct pci_dev *pci; u32 int_todo; spinlock_t int_slock; /* extension handling */ struct saa7146_extension *ext; /* indicates if handled by extension */ void *ext_priv; /* pointer for extension private use (most likely some private data) */ struct saa7146_ext_vv *ext_vv_data; /* per device video/vbi informations (if available) */ struct saa7146_vv *vv_data; void (*vv_callback)(struct saa7146_dev *dev, unsigned long status); /* i2c-stuff */ struct mutex i2c_lock; u32 i2c_bitrate; struct saa7146_dma d_i2c; /* pointer to i2c memory */ wait_queue_head_t i2c_wq; int i2c_op; /* memories */ struct saa7146_dma d_rps0; struct saa7146_dma d_rps1; }; static inline struct saa7146_dev *to_saa7146_dev(struct v4l2_device *v4l2_dev) { return container_of(v4l2_dev, struct saa7146_dev, v4l2_dev); } /* from saa7146_i2c.c */ int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate); /* from saa7146_core.c */ int saa7146_register_extension(struct saa7146_extension*); int saa7146_unregister_extension(struct saa7146_extension*); struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fourcc); int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt); void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt); int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt, struct scatterlist *list, int length ); void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt); void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt); void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data); int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop); /* some memory sizes */ #define SAA7146_I2C_MEM ( 1*PAGE_SIZE) #define SAA7146_RPS_MEM ( 1*PAGE_SIZE) /* some i2c constants */ #define SAA7146_I2C_TIMEOUT 100 /* i2c-timeout-value in ms */ #define SAA7146_I2C_RETRIES 3 /* how many times shall we retry an i2c-operation? */ #define SAA7146_I2C_DELAY 5 /* time we wait after certain i2c-operations */ /* unsorted defines */ #define ME1 0x0000000800 #define PV1 0x0000000008 /* gpio defines */ #define SAA7146_GPIO_INPUT 0x00 #define SAA7146_GPIO_IRQHI 0x10 #define SAA7146_GPIO_IRQLO 0x20 #define SAA7146_GPIO_IRQHL 0x30 #define SAA7146_GPIO_OUTLO 0x40 #define SAA7146_GPIO_OUTHI 0x50 /* debi defines */ #define DEBINOSWAP 0x000e0000 /* define for the register programming sequencer (rps) */ #define CMD_NOP 0x00000000 /* No operation */ #define CMD_CLR_EVENT 0x00000000 /* Clear event */ #define CMD_SET_EVENT 0x10000000 /* Set signal event */ #define CMD_PAUSE 0x20000000 /* Pause */ #define CMD_CHECK_LATE 0x30000000 /* Check late */ #define CMD_UPLOAD 0x40000000 /* Upload */ #define CMD_STOP 0x50000000 /* Stop */ #define CMD_INTERRUPT 0x60000000 /* Interrupt */ #define CMD_JUMP 0x80000000 /* Jump */ #define CMD_WR_REG 0x90000000 /* Write (load) register */ #define CMD_RD_REG 0xa0000000 /* Read (store) register */ #define CMD_WR_REG_MASK 0xc0000000 /* Write register with mask */ #define CMD_OAN MASK_27 #define CMD_INV MASK_26 #define CMD_SIG4 MASK_25 #define CMD_SIG3 MASK_24 #define CMD_SIG2 MASK_23 #define CMD_SIG1 MASK_22 #define CMD_SIG0 MASK_21 #define CMD_O_FID_B MASK_14 #define CMD_E_FID_B MASK_13 #define CMD_O_FID_A MASK_12 #define CMD_E_FID_A MASK_11 /* some events and command modifiers for rps1 squarewave generator */ #define EVT_HS (1<<15) // Source Line Threshold reached #define EVT_VBI_B (1<<9) // VSYNC Event #define RPS_OAN (1<<27) // 1: OR events, 0: AND events #define RPS_INV (1<<26) // Invert (compound) event #define GPIO3_MSK 0xFF000000 // GPIO #3 control bits /* Bit mask constants */ #define MASK_00 0x00000001 /* Mask value for bit 0 */ #define MASK_01 0x00000002 /* Mask value for bit 1 */ #define MASK_02 0x00000004 /* Mask value for bit 2 */ #define MASK_03 0x00000008 /* Mask value for bit 3 */ #define MASK_04 0x00000010 /* Mask value for bit 4 */ #define MASK_05 0x00000020 /* Mask value for bit 5 */ #define MASK_06 0x00000040 /* Mask value for bit 6 */ #define MASK_07 0x00000080 /* Mask value for bit 7 */ #define MASK_08 0x00000100 /* Mask value for bit 8 */ #define MASK_09 0x00000200 /* Mask value for bit 9 */ #define MASK_10 0x00000400 /* Mask value for bit 10 */ #define MASK_11 0x00000800 /* Mask value for bit 11 */ #define MASK_12 0x00001000 /* Mask value for bit 12 */ #define MASK_13 0x00002000 /* Mask value for bit 13 */ #define MASK_14 0x00004000 /* Mask value for bit 14 */ #define MASK_15 0x00008000 /* Mask value for bit 15 */ #define MASK_16 0x00010000 /* Mask value for bit 16 */ #define MASK_17 0x00020000 /* Mask value for bit 17 */ #define MASK_18 0x00040000 /* Mask value for bit 18 */ #define MASK_19 0x00080000 /* Mask value for bit 19 */ #define MASK_20 0x00100000 /* Mask value for bit 20 */ #define MASK_21 0x00200000 /* Mask value for bit 21 */ #define MASK_22 0x00400000 /* Mask value for bit 22 */ #define MASK_23 0x00800000 /* Mask value for bit 23 */ #define MASK_24 0x01000000 /* Mask value for bit 24 */ #define MASK_25 0x02000000 /* Mask value for bit 25 */ #define MASK_26 0x04000000 /* Mask value for bit 26 */ #define MASK_27 0x08000000 /* Mask value for bit 27 */ #define MASK_28 0x10000000 /* Mask value for bit 28 */ #define MASK_29 0x20000000 /* Mask value for bit 29 */ #define MASK_30 0x40000000 /* Mask value for bit 30 */ #define MASK_31 0x80000000 /* Mask value for bit 31 */ #define MASK_B0 0x000000ff /* Mask value for byte 0 */ #define MASK_B1 0x0000ff00 /* Mask value for byte 1 */ #define MASK_B2 0x00ff0000 /* Mask value for byte 2 */ #define MASK_B3 0xff000000 /* Mask value for byte 3 */ #define MASK_W0 0x0000ffff /* Mask value for word 0 */ #define MASK_W1 0xffff0000 /* Mask value for word 1 */ #define MASK_PA 0xfffffffc /* Mask value for physical address */ #define MASK_PR 0xfffffffe /* Mask value for protection register */ #define MASK_ER 0xffffffff /* Mask value for the entire register */ #define MASK_NONE 0x00000000 /* No mask */ /* register aliases */ #define BASE_ODD1 0x00 /* Video DMA 1 registers */ #define BASE_EVEN1 0x04 #define PROT_ADDR1 0x08 #define PITCH1 0x0C #define BASE_PAGE1 0x10 /* Video DMA 1 base page */ #define NUM_LINE_BYTE1 0x14 #define BASE_ODD2 0x18 /* Video DMA 2 registers */ #define BASE_EVEN2 0x1C #define PROT_ADDR2 0x20 #define PITCH2 0x24 #define BASE_PAGE2 0x28 /* Video DMA 2 base page */ #define NUM_LINE_BYTE2 0x2C #define BASE_ODD3 0x30 /* Video DMA 3 registers */ #define BASE_EVEN3 0x34 #define PROT_ADDR3 0x38 #define PITCH3 0x3C #define BASE_PAGE3 0x40 /* Video DMA 3 base page */ #define NUM_LINE_BYTE3 0x44 #define PCI_BT_V1 0x48 /* Video/FIFO 1 */ #define PCI_BT_V2 0x49 /* Video/FIFO 2 */ #define PCI_BT_V3 0x4A /* Video/FIFO 3 */ #define PCI_BT_DEBI 0x4B /* DEBI */ #define PCI_BT_A 0x4C /* Audio */ #define DD1_INIT 0x50 /* Init setting of DD1 interface */ #define DD1_STREAM_B 0x54 /* DD1 B video data stream handling */ #define DD1_STREAM_A 0x56 /* DD1 A video data stream handling */ #define BRS_CTRL 0x58 /* BRS control register */ #define HPS_CTRL 0x5C /* HPS control register */ #define HPS_V_SCALE 0x60 /* HPS vertical scale */ #define HPS_V_GAIN 0x64 /* HPS vertical ACL and gain */ #define HPS_H_PRESCALE 0x68 /* HPS horizontal prescale */ #define HPS_H_SCALE 0x6C /* HPS horizontal scale */ #define BCS_CTRL 0x70 /* BCS control */ #define CHROMA_KEY_RANGE 0x74 #define CLIP_FORMAT_CTRL 0x78 /* HPS outputs formats & clipping */ #define DEBI_CONFIG 0x7C #define DEBI_COMMAND 0x80 #define DEBI_PAGE 0x84 #define DEBI_AD 0x88 #define I2C_TRANSFER 0x8C #define I2C_STATUS 0x90 #define BASE_A1_IN 0x94 /* Audio 1 input DMA */ #define PROT_A1_IN 0x98 #define PAGE_A1_IN 0x9C #define BASE_A1_OUT 0xA0 /* Audio 1 output DMA */ #define PROT_A1_OUT 0xA4 #define PAGE_A1_OUT 0xA8 #define BASE_A2_IN 0xAC /* Audio 2 input DMA */ #define PROT_A2_IN 0xB0 #define PAGE_A2_IN 0xB4 #define BASE_A2_OUT 0xB8 /* Audio 2 output DMA */ #define PROT_A2_OUT 0xBC #define PAGE_A2_OUT 0xC0 #define RPS_PAGE0 0xC4 /* RPS task 0 page register */ #define RPS_PAGE1 0xC8 /* RPS task 1 page register */ #define RPS_THRESH0 0xCC /* HBI threshold for task 0 */ #define RPS_THRESH1 0xD0 /* HBI threshold for task 1 */ #define RPS_TOV0 0xD4 /* RPS timeout for task 0 */ #define RPS_TOV1 0xD8 /* RPS timeout for task 1 */ #define IER 0xDC /* Interrupt enable register */ #define GPIO_CTRL 0xE0 /* GPIO 0-3 register */ #define EC1SSR 0xE4 /* Event cnt set 1 source select */ #define EC2SSR 0xE8 /* Event cnt set 2 source select */ #define ECT1R 0xEC /* Event cnt set 1 thresholds */ #define ECT2R 0xF0 /* Event cnt set 2 thresholds */ #define ACON1 0xF4 #define ACON2 0xF8 #define MC1 0xFC /* Main control register 1 */ #define MC2 0x100 /* Main control register 2 */ #define RPS_ADDR0 0x104 /* RPS task 0 address register */ #define RPS_ADDR1 0x108 /* RPS task 1 address register */ #define ISR 0x10C /* Interrupt status register */ #define PSR 0x110 /* Primary status register */ #define SSR 0x114 /* Secondary status register */ #define EC1R 0x118 /* Event counter set 1 register */ #define EC2R 0x11C /* Event counter set 2 register */ #define PCI_VDP1 0x120 /* Video DMA pointer of FIFO 1 */ #define PCI_VDP2 0x124 /* Video DMA pointer of FIFO 2 */ #define PCI_VDP3 0x128 /* Video DMA pointer of FIFO 3 */ #define PCI_ADP1 0x12C /* Audio DMA pointer of audio out 1 */ #define PCI_ADP2 0x130 /* Audio DMA pointer of audio in 1 */ #define PCI_ADP3 0x134 /* Audio DMA pointer of audio out 2 */ #define PCI_ADP4 0x138 /* Audio DMA pointer of audio in 2 */ #define PCI_DMA_DDP 0x13C /* DEBI DMA pointer */ #define LEVEL_REP 0x140, #define A_TIME_SLOT1 0x180, /* from 180 - 1BC */ #define A_TIME_SLOT2 0x1C0, /* from 1C0 - 1FC */ /* isr masks */ #define SPCI_PPEF 0x80000000 /* PCI parity error */ #define SPCI_PABO 0x40000000 /* PCI access error (target or master abort) */ #define SPCI_PPED 0x20000000 /* PCI parity error on 'real time data' */ #define SPCI_RPS_I1 0x10000000 /* Interrupt issued by RPS1 */ #define SPCI_RPS_I0 0x08000000 /* Interrupt issued by RPS0 */ #define SPCI_RPS_LATE1 0x04000000 /* RPS task 1 is late */ #define SPCI_RPS_LATE0 0x02000000 /* RPS task 0 is late */ #define SPCI_RPS_E1 0x01000000 /* RPS error from task 1 */ #define SPCI_RPS_E0 0x00800000 /* RPS error from task 0 */ #define SPCI_RPS_TO1 0x00400000 /* RPS timeout task 1 */ #define SPCI_RPS_TO0 0x00200000 /* RPS timeout task 0 */ #define SPCI_UPLD 0x00100000 /* RPS in upload */ #define SPCI_DEBI_S 0x00080000 /* DEBI status */ #define SPCI_DEBI_E 0x00040000 /* DEBI error */ #define SPCI_IIC_S 0x00020000 /* I2C status */ #define SPCI_IIC_E 0x00010000 /* I2C error */ #define SPCI_A2_IN 0x00008000 /* Audio 2 input DMA protection / limit */ #define SPCI_A2_OUT 0x00004000 /* Audio 2 output DMA protection / limit */ #define SPCI_A1_IN 0x00002000 /* Audio 1 input DMA protection / limit */ #define SPCI_A1_OUT 0x00001000 /* Audio 1 output DMA protection / limit */ #define SPCI_AFOU 0x00000800 /* Audio FIFO over- / underflow */ #define SPCI_V_PE 0x00000400 /* Video protection address */ #define SPCI_VFOU 0x00000200 /* Video FIFO over- / underflow */ #define SPCI_FIDA 0x00000100 /* Field ID video port A */ #define SPCI_FIDB 0x00000080 /* Field ID video port B */ #define SPCI_PIN3 0x00000040 /* GPIO pin 3 */ #define SPCI_PIN2 0x00000020 /* GPIO pin 2 */ #define SPCI_PIN1 0x00000010 /* GPIO pin 1 */ #define SPCI_PIN0 0x00000008 /* GPIO pin 0 */ #define SPCI_ECS 0x00000004 /* Event counter 1, 2, 4, 5 */ #define SPCI_EC3S 0x00000002 /* Event counter 3 */ #define SPCI_EC0S 0x00000001 /* Event counter 0 */ /* i2c */ #define SAA7146_I2C_ABORT (1<<7) #define SAA7146_I2C_SPERR (1<<6) #define SAA7146_I2C_APERR (1<<5) #define SAA7146_I2C_DTERR (1<<4) #define SAA7146_I2C_DRERR (1<<3) #define SAA7146_I2C_AL (1<<2) #define SAA7146_I2C_ERR (1<<1) #define SAA7146_I2C_BUSY (1<<0) #define SAA7146_I2C_START (0x3) #define SAA7146_I2C_CONT (0x2) #define SAA7146_I2C_STOP (0x1) #define SAA7146_I2C_NOP (0x0) #define SAA7146_I2C_BUS_BIT_RATE_6400 (0x500) #define SAA7146_I2C_BUS_BIT_RATE_3200 (0x100) #define SAA7146_I2C_BUS_BIT_RATE_480 (0x400) #define SAA7146_I2C_BUS_BIT_RATE_320 (0x600) #define SAA7146_I2C_BUS_BIT_RATE_240 (0x700) #define SAA7146_I2C_BUS_BIT_RATE_120 (0x000) #define SAA7146_I2C_BUS_BIT_RATE_80 (0x200) #define SAA7146_I2C_BUS_BIT_RATE_60 (0x300) static inline void SAA7146_IER_DISABLE(struct saa7146_dev *x, unsigned y) { unsigned long flags; spin_lock_irqsave(&x->int_slock, flags); saa7146_write(x, IER, saa7146_read(x, IER) & ~y); spin_unlock_irqrestore(&x->int_slock, flags); } static inline void SAA7146_IER_ENABLE(struct saa7146_dev *x, unsigned y) { unsigned long flags; spin_lock_irqsave(&x->int_slock, flags); saa7146_write(x, IER, saa7146_read(x, IER) | y); spin_unlock_irqrestore(&x->int_slock, flags); } #endif